View TPS60200-15_9078316.PDF datasheet online --- IC-ON-LINE

Datasheet File OCR Text:

tps60200, tps60201, tps60202, tps60203 regulated 3.3 v, 100-ma low-ripple charge pump low power dc/dc converters slvs274 march 2000 1 post office box 655303 ? dallas, texas 75265 features regulated 3.3-v output voltage with up to 100-ma output current from a 1.8-v to 3.6-v input voltage less than 5-mv (pp) output voltage ripple achieved with push-pull topology integrated low-battery and power-good detector switching frequency can be synchronized to external clock signal extends battery usage with up to 90% efficiency and 35- m a quiescent supply current reliable system shutdown because output capacitor is discharged when device is disabled easy-to-design, low-cost, low-emi power supply since no inductors are used 0.05- m a shutdown current, battery is isolated from load in shutdown mode compact converter solution in ultrasmall 10-pin msop with only four external capacitors required evaluation module available (tps60200evm-145) applications replaces dc/dc converters with inductors in battery powered applications like: two battery cells to 3.3-v conversion mp3 portable audio players battery-powered microprocessor systems backup-battery boost converters pda's, organizers, and cordless phones handheld instrumentation glucose meters and other medical instruments description the tps6020x step-up, regulated charge pumps generate a 3.3-v 4% output voltage from a 1.8-v to 3.6-v input voltage. the devices are typically powered by two alkaline, nicd or nimh battery cells and operate down to a minimum supply voltage of 1.6 v. continuous output current is a minimum of 100 ma for the tps60200 and tps60201 and 50 ma for the tps60202 and tps60203, all from a 2-v input. only four external capacitors are needed to build a complete low-ripple dc/dc converter. the push-pull operating mode of two single-ended charge pumps assures the low output voltage ripple as current is continuously transferred to the output. figure 1. typical application circuit with low-battery warning tps60200 peak output current vs input voltage 150 100 50 0 1.6 2.0 2.4 2.8 200 250 350 3.2 3.6 300 v i input voltage v peak output current ma output 3.3 v, 100 ma input 1.6 v to 3.6 v off/on c1 c2 r1 r2 1 2 3 4 5 6 7 8 9 10 r3 low battery warning in en c1 c1+ lbi tps60200 out c2 c2+ lbo gnd o i c i c o 1 m f 1 m f 2.2 m f 2.2 m f copyright ? 2000, texas instruments incorporated please be aware that an important notice concerning availability, standard warranty, and use in critical applications of texas instruments semiconductor products and disclaimers thereto appears at the end of this data sheet. production data information is current as of publication date. products conform to specifications per the terms of texas instruments standard warranty. production processing does not necessarily include testing of all parameters.
tps60200, tps60201, tps60202, tps60203 regulated 3.3 v, 100-ma low-ripple charge pump low power dc/dc converters slvs274 march 2000 2 post office box 655303 ? dallas, texas 75265 description (continued) the devices operate in the newly developed linskip mode. in this operating mode, the device switches seamlessly from the power saving pulse-skip mode at light loads to the low-noise constant-frequency, linear-regulation mode once the output current exceeds the linskip threshold of about 7 ma. even in pulse-skip mode the output ripple is maintained at a very low level because the output resistance of the charge pump is still regulated. three operating modes can be programmed using the en pin. en = low disables the device, shuts down all internal circuits and disconnects the output from the input. en = high enables the device and programs it to run from the internal oscillator. the devices operate synchronized to an external clock signal if en is clocked; thus switching harmonics can be controlled and minimized. the devices include a low-battery detector that issues a warning if the battery voltage drops below a user-defined threshold voltage or a power-good detector that goes active when the output voltage reaches about 90% of its nominal value. device options with either a low-battery or power good detector are available. this dc/dc converter requires no inductors therefore emi of the system is reduced to a minimum. it is available in the small 10-pin msop package (dgs). dgs packages 1 2 3 4 5 10 9 8 7 6 lbi gnd c1 c1+ out lbo en c2 in c2+ tps60200, tps60202 1 2 3 4 5 10 9 8 7 6 gnd gnd c1 c1+ out pg en c2 in c2+ tps60201, tps60203 available options t a part number 2 marking dgs package output current (ma) output voltage (v) device features tps60200dgs aex 100 3.3 low-battery detector 40 cto85 5 c tps60201dgs aey 100 3.3 power-good detector 40 c to 85 c tps60202dgs aez 50 3.3 low-battery detector tps60203dgs afa 50 3.3 power-good detector 2 the dgs package is available taped and reeled. add r suffix to device type (e.g. tps60200dgsr) to order quantities of 3000 devices per reel.
tps60200, tps60201, tps60202, tps60203 regulated 3.3 v, 100-ma low-ripple charge pump low power dc/dc converters slvs274 march 2000 3 post office box 655303 ? dallas, texas 75265 functional block diagrams tps60200 and tps60202 with low-battery detector _ + oscillator control circuit _ + + v ref _ + + shutdown/ start-up control 0.8 x v in + v ref lbi gnd lbo en charge pump 1 c1+ c1 c1 c2+ c2 out c2 in charge pump 2 autodischarge 0 180 tps60201 and tps60203 with power-good detector _ + oscillator control circuit _ + + v ref _ + + shutdown/ start-up control 0.8 x v in + v ref gnd pg en charge pump 1 c1+ c1 c1 c2+ c2 out c2 in charge pump 2 autodischarge 0 180
tps60200, tps60201, tps60202, tps60203 regulated 3.3 v, 100-ma low-ripple charge pump low power dc/dc converters slvs274 march 2000 4 post office box 655303 ? dallas, texas 75265 terminal functions terminal i/o description name no. i/o description c1+ 4 positive terminal of the flying capacitor c1 c1 3 negative terminal of the flying capacitor c1 c2+ 6 positive terminal of the flying capacitor c2 c2 8 negative terminal of the flying capacitor c2 en 9 i device-enable input. three operating modes can be programmed with the en pin. en = low disables the device. output and input are isolated in the shutdown mode and the output capacitor is automatically discharged. en = high lets the device run from the internal oscillator. if an external clock signal is applied to the en pin, the device is in syncmode and runs synchronized at the frequency of the external clock signal. gnd 2 ground in 7 i supply input. bypass in to gnd with a capacitor of the same size as c o . lbi/gnd 1 i low-battery detector input for tps60200 and tps60202. a low-battery warning is generated at the lbo pin when the voltage on lbi drops below the threshold of 1.18 v. connect lbi to gnd if the low-battery detector function is not used. for the devices tps60201 and tps60203, this pin has to be connected to ground (gnd pin). lbo/pg 10 o open-drain low-battery detector output for tps60200 and tps60202. this pin is pulled low if the voltage on lbi drops below the threshold of 1.18 v. a pullup resistor should be connected between lbo and out or any other logic supply rail that is lower than 3.6 v. open-drain power-good detector output for tps60201 and tps60203. as soon as the voltage on out reaches about 90% of it is nominal value this pin goes active high. a pullup resistor should be connected between pg and out or any other logic supply rail that is lower than 3.6 v. out 5 o regulated 3.3-v power output. bypass out to gnd with the output filter capacitor c o . detailed description operating principle the tps6020x charge pumps provide a regulated 3.3-v output from a 1.8-v to 3.6-v input. they deliver up to 100-ma load current while maintaining the output at 3.3 v 4%. designed specifically for space critical battery powered applications, the complete converter requires only four external capacitors. the device is using the push-pull topology to achieve lowest output voltage ripple. the converter is also optimized for smallest board space. it makes use of small sized capacitors, with the highest output current rating per output capacitance and package size. the tps6020x circuits consist of an oscillator, a 1.18-v voltage reference, an internal resistive feedback circuit, an error amplifier, two charge pump power stages with high current mosfet switches, a shutdown/start-up circuit, a control circuit, and an auto-discharge transistor (see functional block diagrams). push-pull operating mode the two single-ended charge pump power stages operate in the so-called push-pull operating mode, i.e. they operate with a 180 c phase shift. each single-ended charge pump transfers charge into its transfer capacitor (c1 or c2) in one half of the period. during the other half of the period (transfer phase), the transfer capacitor is placed in series with the input to transfer its charge to c o . while one single-ended charge pump is in the charge phase, the other one is in the transfer phase. this operation assures an almost constant output current which ensures a low output ripple. if the clock were to run continuously, this process would eventually generate an output voltage equal to two times the input voltage (hence the name voltage doubler). in order to provide a regulated fixed output voltage of 3.3 v, the tps6020x devices use either pulse-skip or constant-frequency linear-regulation control mode. the mode is automatically selected based on the output current. if the load current is below the linskip current threshold, it switches into the power-saving pulse-skip mode to boost efficiency at low output power.
tps60200, tps60201, tps60202, tps60203 regulated 3.3 v, 100-ma low-ripple charge pump low power dc/dc converters slvs274 march 2000 5 post office box 655303 ? dallas, texas 75265 detailed description (continued) constant-frequency mode when the output current is higher then the linskip current threshold, the charge pump runs continuously at the switching frequency f (osc) . the control circuit, fed from the error amplifier, controls the charge on c1 and c2 by controlling the gates and hence the r ds(on) of the integrated mosfets. when the output voltage decreases, the gate drive increases, resulting in a larger voltage across c1 and c2. this regulation scheme minimizes output ripple. since the device switches continuously, the output signal contains well-defined frequency components, and the circuit requires smaller external capacitors for a given output ripple. however, constant-frequency mode, due to higher operating current, is less efficient at light loads. for this reason, the device switches seamlessly into the pulse-skip mode when the output current drops below the linskip current threshold. pulse-skip mode the regulator enters the pulse-skip mode when the output current is lower than the linskip current threshold of 7 ma. in the pulse-skip mode, the error amplifier disables switching of the power stages when it detects an output voltage higher than 3.3 v. the controller skips switching cycles until the output voltage drops below 3.3 v. then the error amplifier reactivates the oscillator and switching of the power stages starts again. a 30-mv output voltage offset is introduced in this mode. the pulse-skip regulation mode minimizes operating current because it does not switch continuously and deactivates all functions except the voltage reference and error amplifier when the output is higher than 3.3 v. even in pulse-skip mode the r ds(on) of the mosfets is controlled. this way the energy per switching cycle that is transferred by the charge pump from the input to the output is limited to the minimum that is necessary to sustain a regulated output voltage, with the benefit that the output ripple is kept to a minimum. when switching is disabled from the error amplifier, the load is also isolated from the input. start up, shutdown, and auto-discharge during start-up, i.e. when en is set from logic low to logic high, the output capacitor is directly connected to in and charged up with a limited current until the output voltage v o reaches 0.8 v i . when the start-up comparator detects this limit, the converter begins switching. this precharging of the output capacitor guarantees a short start-up time. in addition, the inrush current into an empty output capacitor is limited. the converter can start into a full load, which is defined by a 33- w or 66- w resistor, respectively. driving en low disables the converter. this disables all internal circuits and reduces the supply current to only 0.05 m a. the device exits shutdown once en is set high. when the device is disabled, the load is isolated from the input. this is an important feature in battery operated products because it extends the products shelf life. additionally, the output capacitor will automatically be discharged after en is taken low. this ensures that the system, when switched off, is in a stable and reliable condition since the supply voltage is removed from the supply pins. synchronization to an external clock signal the operating frequency of the charge pump is limited to 400 khz in order to avoid interference in the sensitive 455-khz if band. the device can either run from the integrated oscillator, or an external clock signal can be used to drive the charge pump. the maximum frequency of the external clock signal is 800 khz. the switching frequency used internally to drive the charge pump power stages is half of the external clock frequency. the external clock signal is applied to the en pin. the device will switch off if the signal on en is hold low for more than 10 m s. when the load current drops below the linskip current threshold, the devices will enter the pulse-skip mode but stay synchronized to the external clock signal.
tps60200, tps60201, tps60202, tps60203 regulated 3.3 v, 100-ma low-ripple charge pump low power dc/dc converters slvs274 march 2000 6 post office box 655303 ? dallas, texas 75265 detailed description (continued) low-battery detector (tps60200 and tps60202) the low-battery comparator trips at 1.18 v 4% when the voltage on pin lbi ramps down. the voltage v (trip) at which the low-battery warning is issued can be adjusted with a resistive divider as shown in figure 2. the sum of resistors r1 and r2 is recommended to be in the 100-k w to 1-m w range. when choosing r1 and r2, be aware of the input leakage current into the lbi pin. lbo is an open drain output. an external pullup resistor to out, or any other voltage rail in the appropriate range, in the 100-k w to 1-m w range is recommended. during start-up, the lbo output signal is invalid for the first 500 m s. lbo is high impedance when the device is disabled. if the low-battery comparator function is not used, connect lbi to ground and leave lbo unconnected. the low-battery detector is disabled when the device is switched off. v (trip) 1.18 v 1 r1 r2 _ + + v ref v bat in r1 lbi r2 lbo r3 v o figure 2. programming of the low-battery comparator trip voltage a 100 nf ceramic capacitor should be connected in parallel to r2 if large line transients are expected. these voltage drops can inadvertently trigger the low-battery comparator and produce a wrong low-battery warning signal at the lbo pin. formulas to calculate the resistive divider for low-battery detection, with v lbi = 1.13 v to 1.23 v and the sum of resistors r1 and r2 equal 1 m w : r2 1m v lbi v bat r1 1m r2 (1) (2) formulas to calculate the minimum and maximum battery voltage: v bat(min) v lbi(min) r1 (min) r2 (max) r2 (max) v bat(max) v lbi(max) r1 (max) r2 (min) r2 (min) (3) (4)
tps60200, tps60201, tps60202, tps60203 regulated 3.3 v, 100-ma low-ripple charge pump low power dc/dc converters slvs274 march 2000 7 post office box 655303 ? dallas, texas 75265 detailed description (continued) table 1. recommended values for the resistive divider from the e96 series ( 1%) v (in) /v r1/k w r2/k w v trip(min) /v v trip(max) /v 1.6 267 750 1.524 1.677 1.7 301 681 1.620 1.785 1.8 340 649 1.710 1.887 1.9 374 619 1.799 1.988 2.0 402 576 1.903 2.106 power-good detector (tps60201 and tps60203) the power-good output is an open-drain output that pulls low when the output is out of regulation. when the output rises to within 90% of its nominal voltage, the power-good output is released. power-good is high impedance in shutdown. in normal operation, an external pullup resistor must be connected between pg and out, or any other voltage rail in the appropriate range. the resistor should be in the 100-k w to 1-m w range. if the pg output is not used, it should remain unconnected. absolute maximum ratings over operating free-air temperature range (unless otherwise noted) 2 voltage range: in, out, en, lbi, lbo, pg to gnd 0.3 v to 3.6 v . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . c1+, c2+ to gnd 0.3 v to (v o + 0.3 v) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . c1, c2 to gnd 0.3 v to (v i + 0.3 v) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . continuous total power dissipation see dissipation rating table . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . continuous output current tps60200, tps60201 150 ma . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . continuous output current tps60202, tps60203 75 ma . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . storage temperature range, t stg 55 c to 150 c . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . maximum junction temperature, t j 150 c . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 stresses beyond those listed under aabsolute maximum ratingso may cause permanent damage to the device. these are stress rating s only, and functional operation of the device at these or any other conditions beyond those indicated under arecommended operating conditi onso is not implied. exposure to absolute-maximum-rated conditions for extended periods may affect device reliability. dissipation rating table 1 free-air temperature package t a 25 c power rating derating factor above t a = 25 c t a = 70 c power rating t a = 85 c power rating dgs 424 mw 3.4 mw/ c 187 mw 136 mw the thermal resistance junction to ambient of the dgs package is r thja = 294 c/w. recommended operating conditions min nom max unit input voltage range, v i 1.6 3.6 v input capacitor, c i 2.2 m f flying capacitors, c1, c2 1 m f output capacitor, c o 2.2 m f operating junction temperature, t j 40 125 c
tps60200, tps60201, tps60202, tps60203 regulated 3.3 v, 100-ma low-ripple charge pump low power dc/dc converters slvs274 march 2000 8 post office box 655303 ? dallas, texas 75265 electrical characteristics at c i = 2.2 m f, c1 = c2 = 1 m f, c o = 2.2 m f, t a = 40 c to 85 c, v i = 2.4 v, en = v i (unless otherwise noted) parameter test conditions min typ max unit i o(max) maximum continuous out p ut current tps60200 and tps60201, v i = 2 v 100 ma i o(max) ma x im u m contin u o u s o u tp u t c u rrent tps60202 and tps60203, v i = 2 v 50 ma 1.6 v < v i < 1.8 v, 0 < i o < 0.25 i o(max) 3 v v o out p ut voltage 1.8 v < v i < 2 v, 0 < i o < 0.5 i o(max) 3.17 3.43 v v o o u tp u t v oltage 2 v < v i < 3.3 v, 0 < i o < i o(max) 3.17 3.43 v 3.3 v < v i < 3.6 v, 0 < i o < i o(max) 3.17 3.47 v v pp output voltage ripple i o = i o(max) 5 mv pp i (q) quiescent current (no-load input current) i o = 0 ma, v i = 1.8 v to 3.6 v 35 70 m a i (sd) shutdown supply current en = 0 v 0.05 1 m a f (osc) internal switching frequency 200 300 400 khz f (sync) external clock signal frequency 400 600 800 khz external clock signal duty cycle 30% 70% v il en input low voltage v i = 1.6 v to 3.6 v 0.3 v i v v ih en input high voltage v i = 1.6 v to 3.6 v 0.7 v i v i lkg(en) en input leakage current en = 0 v or v i 0.01 0.1 m a output capacitor auto discharge time en is set from v i to gnd, time until v o < 0.5v 0.6 ms output resistance in shutdown en = 0v 70 w linskip threshold v i = 2.2v 7 ma output load regulation 10 ma < i o < i o(max) ; t a = 25 c 0.01 %/ma output line regulation 2 v < v i < 3.3 v, i o = 0.5 x i o(max) , t a = 25 c 0.6 %/v i (sc) short circuit current v i = 2.4 v, v o = 0 v 60 ma electrical characteristics for low-battery comparator of devices tps60200 and tps60202 at t a = 40 c to 85 c, v i = 2.4 v and en = v i (unless otherwise noted) parameter test conditions min typ max unit v (lbi) lbi trip voltage v i = 1.6v to 2.2v, t c = 0 c to 70 c 1.13 1.18 1.23 v lbi trip voltage hysteresis for rising voltage at lbi 10 mv i i(lbi) lbi input current v (lbi) = 1.3 v 2 50 na v o(lbo) lbo output voltage low v (lbi) = 0 v, i (lbo) = 1 ma 0.4 v i lkg(lbo) lbo leakage current v (lbi) = 1.3 v, v (lbo) = 3.3 v 0.01 0.1 m a note: during start-up of the converter the lbo output signal is invalid for the first 500 m s. electrical characteristics for power-good comparator of devices tps60201 and tps60203 at t a = 40 c to 85 c, v i = 2.4 v and en = v i (unless otherwise noted) parameter test conditions min typ max unit v (pg) power-good trip voltage t c = 0 c to 70 c 0.87 v o 0.91 v o 0.95 v o v v hys(pg) power-good trip voltage hysteresis v o decreasing, t c = 0 c to 70 c 1% v o(pg) power-good output voltage low v o = 0v, i (pg) = 1 ma 0.4 v i lkg(pg) power-good leakage current v o = 3.3 v, v (pg) = 3.3 v 0.01 0.1 m a note: during start-up of the converter the pg output signal is invalid for the first 500 m s.
tps60200, tps60201, tps60202, tps60203 regulated 3.3 v, 100-ma low-ripple charge pump low power dc/dc converters slvs274 march 2000 9 post office box 655303 ? dallas, texas 75265 typical characteristics table of graphs figures h efficiency vs output current (tps60200 and tps60202) 3, 4 h efficienc y vs input voltage 5 i q quiescent supply current vs input voltage 6 v o out p ut voltage vs output current (tps60200 and tps60202) 7, 8 v o o u tp u t v oltage vs input voltage (tps60200 and tps60202) 9, 10 v o output voltage ripple vs time 11, 12, 13 start-up timing 14 load transient response 15 line transient response 16 i o peak output current vs input voltage (tps60200) 17 note: all typical characteristics were measured using the typical application circuit of figure 18 (unless otherwise noted). figure 3 0.1 i o output current ma tps60200 efficiency vs output current 1 10 100 1000 v i = 2.4 v v i = 1.8 v v i = 2.7 v efficiency % 100 90 80 70 60 50 40 30 20 10 0 figure 4 0.1 i o output current ma tps60202 efficiency vs output current efficiency % 1 10 100 v i = 1.8 v v i = 2.4 v v i = 2.7 v 100 90 80 70 60 50 40 30 20 10 0
tps60200, tps60201, tps60202, tps60203 regulated 3.3 v, 100-ma low-ripple charge pump low power dc/dc converters slvs274 march 2000 10 post office box 655303 ? dallas, texas 75265 typical characteristics figure 5 tps60200 efficiency vs input voltage 0 10 20 30 40 50 60 70 80 90 100 1.6 2.0 2.4 2.8 3.2 3.6 v i input voltage v efficiency % i o = 50 ma figure 6 30 28 24 22 20 38 26 1.6 1.8 2.0 2.2 2.4 2.6 2.8 34 32 36 v input voltage v quiescent supply current vs input voltage 40 3.0 3.2 3.4 3.6 i quiescent current a m q i i o = 0 ma figure 7 tps60200 output voltage vs output current 3.2 2.9 3.5 3.4 3.3 3.1 3.0 v o output voltage v v i = 1.8 v v i = 2.4 v v i = 2.7 v v i = 3.6 v i o output current ma 1 10 100 1000 figure 8 3 3.05 3.10 3.15 3.20 3.25 3.30 3.35 1 10 100 v i = 3.6 v v i = 2.7 v v i = 2.4 v v i = 1.8 v output voltage v tps60202 output voltage vs output current v o i o output current ma
tps60200, tps60201, tps60202, tps60203 regulated 3.3 v, 100-ma low-ripple charge pump low power dc/dc converters slvs274 march 2000 11 post office box 655303 ? dallas, texas 75265 typical characteristics figure 9 tps60200 output voltage vs input voltage 3.0 2.9 2.8 2.7 1.6 2.0 2.4 2.8 3.1 3.2 3.4 3.2 3.6 3.3 1 ma 50 ma 100 ma v o output voltage v v i input voltage v figure 10 tps60202 output voltage vs input voltage 3.15 3.10 3.05 3.00 1.6 2.0 2.4 2.8 3.20 3.25 3.35 3.2 3.6 3.30 1 ma 25 ma 50 ma v o output voltage v v i input voltage v figure 11 t time m s tps60200 output voltage ripple vs time 050 3.22 3.24 3.34 3.38 3.36 3.32 3.30 3.26 3.28 545 40 35 30 25 10 15 20 output voltage v v o v i = 2.4 v i o = 1 m a figure 12 t time m s tps60200 output voltage ripple vs time 010 3.22 3.24 3.34 3.38 3.36 3.32 3.30 3.26 3.28 19 8 7 6 5 234 output voltage v v o v i = 2.4 v i o = 10 m a
tps60200, tps60201, tps60202, tps60203 regulated 3.3 v, 100-ma low-ripple charge pump low power dc/dc converters slvs274 march 2000 12 post office box 655303 ? dallas, texas 75265 typical characteristics figure 13 t time m s tps60200 output voltage ripple vs time 3.30 3.28 3.24 3.22 0123456 3.34 3.36 3.38 78910 v i = 2.4 v i o = 100 m a 3.32 3.26 output voltage v v o start-up timing 2 1 0 0 50 100 150 200 250 300 2.5 3 3.5 350 400 450 500 1.5 0.5 v o en i i t time m s v i = 2.4 v output voltage v v o 800 400 0 1000 1200 1400 600 200 input current ma i i figure 14 figure 15 tps60200 load transient response 100 ma 10 ma 0 50 100 150 200 250 300 output voltage v 3.26 3.28 3.30 350 400 450 500 3.24 v o output current ma i o t time m s v i = 2.4 v figure 16 tps60200 line transient response 3.30 3.26 2.2 v 0123456 3.32 78910 i o = 50 ma 3.28 2.8 v output voltage v v o input voltage v v i t time ms
tps60200, tps60201, tps60202, tps60203 regulated 3.3 v, 100-ma low-ripple charge pump low power dc/dc converters slvs274 march 2000 13 post office box 655303 ? dallas, texas 75265 typical characteristics tps60200 peak output current vs input voltage 150 100 50 0 1.6 2.0 2.4 2.8 200 250 350 3.2 3.6 300 v i input voltage v i output current ma figure 17 o application information capacitor selection the tps6020x devices require only four external capacitors to achieve a very low output voltage ripple. the capacitor values are closely linked to the required output current. low esr (<0.1 w ) capacitors should be used at input and output. in general, the transfer capacitors (c1 and c2) will be the smallest, a 1- m f value is recommended for maximum load operation. with smaller capacitor values, the maximum possible load current is reduced and the linskip threshold is lowered. the input capacitor improves system efficiency by reducing the input impedance. it also stabilizes the input current of the power source. the input capacitor should be chosen according to the power supply used and the distance from the power source to the converter ic. c i is recommended to be about two to four times as large as the flying capacitors c1 and c2. the output capacitor (c o ) should be at minimum the size of the input capacitor. the minimum required capacitance is 2.2 m f. larger values will improve the load transient performance and will reduce the maximum output ripple voltage. only ceramic capacitors are recommended for input, output, and flying capacitors. depending on the material used to manufacture them, ceramic capacitors might lose their capacitance over temperature and voltage. ceramic capacitors of type x7r or x5r material will keep their capacitance over temperature and voltage, whereas z5u- or y5v-type capacitors will decrease in capacitance. table 2 lists recommended capacitor values.
tps60200, tps60201, tps60202, tps60203 regulated 3.3 v, 100-ma low-ripple charge pump low power dc/dc converters slvs274 march 2000 14 post office box 655303 ? dallas, texas 75265 application information table 2. recommended capacitor values (ceramic x5r and x7r) load current, i l (ma) flying capacitors, c1/c2 ( m f) input capacitor, c i ( m f) output capacitor, c o ( m f) output voltage ripple in linear mode, v (p-p) (mv) output voltage ripple in skip mode, v (p-p) (mv) 0100 1 2.2 2.2 3 20 0100 1 4.7 4.7 3 10 0100 1 2.2 10 3 7 0100 2.2 4.7 4.7 3 10 050 0.47 2.2 2.2 3 20 025 0.22 2.2 2.2 5 15 010 0.1 2.2 2.2 5 15 table 3. recommended capacitor types manufacturer part number size capacitance type taiyo yuden umk212bj104mg 0805 0.1 m f ceramic emk212bj224mg 0805 0.22 m f ceramic emk212bj474mg 0805 0.47 m f ceramic lmk212bj105kg 0805 1 m f ceramic lmk212bj225mg 0805 2.2 m f ceramic emk316bj225kl 1206 2.2 m f ceramic lmk316bj475kl 1206 4.7 m f ceramic jmk316bj106ml 1206 10 m f ceramic avx 0805zc105kat2a 0805 1 m f ceramic 1206zc225kat2a 1206 2.2 m f ceramic table 4. recommended capacitor manufacturers manufacturer capacitor type internet site taiyo yuden x7r/x5r ceramic http://www.tyuden.com/ avx x7r/x5r ceramic http://www.avxcorp.com/
tps60200, tps60201, tps60202, tps60203 regulated 3.3 v, 100-ma low-ripple charge pump low power dc/dc converters slvs274 march 2000 15 post office box 655303 ? dallas, texas 75265 application information typical operating circuit tps60200 and tps60202 output 3.3 v, 100 ma input 1.6 v to 3.6 v off/on c1 1 m f c2 1 m f c o 2.2 m f c i 2.2 m f r1 r2 1 2 3 4 5 6 7 8 9 10 r3 low battery warning in en c1 c1+ lbi tps60200 out c2 c2+ lbo gnd output input off/on c1 0.47 m f c2 0.47 m f c o 2.2 m f c i 2.2 m f r1 r2 1 2 3 4 5 6 7 8 9 10 r3 low battery warning in en c1 c1+ lbi tps60202 out c2 c2+ lbo gnd 1.6 v to 3.6 v 3.3 v, 50 ma figure 18. typical operating circuit tps60200 and tps60202 with low-battery detector
tps60200, tps60201, tps60202, tps60203 regulated 3.3 v, 100-ma low-ripple charge pump low power dc/dc converters slvs274 march 2000 16 post office box 655303 ? dallas, texas 75265 application information typical operating circuit tps60201 and tps60203 output input 1.6 v to 3.6 v off/on c1 1 m f c2 1 m f c o 2.2 m f c i 2.2 m f 3 4 5 6 7 8 9 10 r1 power-good in en c1 c1+ tps60201 out c2 c2+ pg gnd 1,2 signal output input off/on c1 c2 c o 2.2 m f c i 2.2 m f 3 4 5 6 7 8 9 10 r1 power-good in en c1 c1+ tps60203 out c2 c2+ pg gnd signal 1,2 0.47 m f 0.47 m f 3.3 v, 100 ma 3.3 v, 50 ma 1.6 v to 3.6 v figure 19. typical operating circuit tps60201 and tps60203 with power-good detector power dissipation the power dissipated in the tps6020x devices depends mainly on input voltage and output current and is approximated by: p (diss) i o x 2xv i v o for i (q) i o (5) by observing equation 5, it can be seen that the power dissipation is worst for highest input voltage v i and highest output current i o . for an input voltage of 3.6 v and an output current of 100 ma the calculated power dissipation p (diss) is 390 mw. this is also the point where the charge pump operates with its lowest efficiency. with the recommended maximum junction temperature of 125 c and an assumed maximum ambient operating temperature of 85 c, the maximum allowed thermal resistance junction to ambient of the system can be calculated. r ja(max) t j(max) t a p diss(max) 125 c 85 c 390 mw 102 c w (6)
tps60200, tps60201, tps60202, tps60203 regulated 3.3 v, 100-ma low-ripple charge pump low power dc/dc converters slvs274 march 2000 17 post office box 655303 ? dallas, texas 75265 application information power dissipation (continued) p diss must be less than that allowed by the package rating. the thermal resistance junction to ambient of the used 10-pin msop is 294 c/w for an unsoldered package. the thermal resistance junction to ambient with the ic soldered to a printed circuit using a board layout as described in the application information section, the r q ja is typically 200 c/w, which is higher than the maximum value calculated above. however in a battery powered application, both v i and t a will typically be lower than the worst case ratings used in equation 6 , and power dissipation should not be a problem in most applications. layout and board space careful board layout is necessary due to the high transient currents and switching frequency of the converter. all capacitors should be placed in close proximity to the device. a pcb layout proposal for a one-layer board is given in figure 20. an evaluation module for the tps60200 is available and can be ordered under product code tps60200evm145. the evm uses the layout shown in figure 20. all components including the pins are shown. the evm is built so that it can be connected to a 14-pin dual inline socket, therefore, the space needed for the ic, the external parts, and 8 pins is 17,9 mm x 10,2 mm = 182,6 mm 2 . figure 20. recommended component placement and board layout table 5. component identification ic1 tps60200 c1, c2 flying capacitors c3 input capacitors c4 output capacitors c5 stabilization capacitor for lbi r1, r2 resistive divider for lbi r3 pullup resistor for lbo r4 pullup resistor for en capacitor c5 should be included if large line transients are expected. this capacitor suppresses toggling of the lbo due to these line changes.
tps60200, tps60201, tps60202, tps60203 regulated 3.3 v, 100-ma low-ripple charge pump low power dc/dc converters slvs274 march 2000 18 post office box 655303 ? dallas, texas 75265 application information device family products other charge pump dc-dc converters in this family are: table 6. product identification part number description tps60100 2-cell to regulated 3.3 v, 200-ma low-noise charge pump tps60101 2-cell to regulated 3.3 v, 100-ma low-noise charge pump tps60110 3-cell to regulated 5.0 v, 300-ma low-noise charge pump tps60111 3-cell to regulated 5.0 v, 150-ma low-noise charge pump tps60120 2-cell to regulated 3.3 v, 200-ma high efficiency charge pump with low battery comparator tps60121 2-cell to regulated 3.3 v, 200-ma high efficiency charge pump with power-good comparator tps60122 2-cell to regulated 3.3 v, 100-ma high efficiency charge pump with low battery comparator tps60123 2-cell to regulated 3.3 v, 100-ma high efficiency charge pump with power-good comparator tps60130 3-cell to regulated 5.0 v, 300-ma high efficiency charge pump with low battery comparator tps60131 3-cell to regulated 5.0 v, 300-ma high efficiency charge pump with power-good comparator tps60132 3-cell to regulated 5.0 v, 150-ma high efficiency charge pump with low battery comparator tps60133 3-cell to regulated 5.0 v, 150-ma high efficiency charge pump with power-good comparator tps60140 2-cell to regulated 5.0 v, 100-ma charge pump voltage tripler with low battery comparator tps60141 2-cell to regulated 5.0 v, 100-ma charge pump voltage tripler with power-good comparator
tps60200, tps60201, tps60202, tps60203 regulated 3.3 v, 100-ma low-ripple charge pump low power dc/dc converters slvs274 march 2000 19 post office box 655303 ? dallas, texas 75265 mechanical data dgs (s-pdso-g10) plastic small-outline package 0,69 0,41 0,25 0,15 nom gage plane 4073272/a 03/98 4,98 0,17 6 3,05 4,78 2,95 10 5 3,05 2,95 1 0,27 0,15 0,05 1,07 max seating plane 0,10 0,50 m 0,25 0 6 notes: a. all linear dimensions are in millimeters. b. this drawing is subject to change without notice. c. body dimensions do not include mold flash or protrusion.
packaging information orderable device status (1) package type package drawing pins package qty eco plan (2) lead/ball finish msl peak temp (3) tps60200dgs active msop dgs 10 80 green (rohs & no sb/br) cu nipdau level-1-260c-unlim tps60200dgsg4 active msop dgs 10 80 green (rohs & no sb/br) cu nipdau level-1-260c-unlim tps60200dgsr active msop dgs 10 2500 green (rohs & no sb/br) cu nipdau level-1-260c-unlim tps60200dgsrg4 active msop dgs 10 2500 green (rohs & no sb/br) cu nipdau level-1-260c-unlim tps60201dgs active msop dgs 10 80 green (rohs & no sb/br) cu nipdau level-1-260c-unlim tps60201dgsg4 active msop dgs 10 80 green (rohs & no sb/br) cu nipdau level-1-260c-unlim tps60202dgs active msop dgs 10 80 green (rohs & no sb/br) cu nipdau level-1-260c-unlim tps60202dgsg4 active msop dgs 10 80 green (rohs & no sb/br) cu nipdau level-1-260c-unlim tps60202dgsr active msop dgs 10 2500 green (rohs & no sb/br) cu nipdau level-1-260c-unlim tps60202dgsrg4 active msop dgs 10 2500 green (rohs & no sb/br) cu nipdau level-1-260c-unlim tps60203dgs active msop dgs 10 80 green (rohs & no sb/br) cu nipdau level-1-260c-unlim tps60203dgsg4 active msop dgs 10 80 green (rohs & no sb/br) cu nipdau level-1-260c-unlim tps60203dgsr active msop dgs 10 2500 green (rohs & no sb/br) cu nipdau level-1-260c-unlim tps60203dgsrg4 active msop dgs 10 2500 green (rohs & no sb/br) cu nipdau level-1-260c-unlim (1) the marketing status values are defined as follows: active: product device recommended for new designs. lifebuy: ti has announced that the device will be discontinued, and a lifetime-buy period is in effect. nrnd: not recommended for new designs. device is in production to support existing customers, but ti does not recommend using this part in a new design. preview: device has been announced but is not in production. samples may or may not be available. obsolete: ti has discontinued the production of the device. (2) eco plan - the planned eco-friendly classification: pb-free (rohs), pb-free (rohs exempt), or green (rohs & no sb/br) - please check http://www.ti.com/productcontent for the latest availability information and additional product content details. tbd: the pb-free/green conversion plan has not been defined. pb-free (rohs): ti's terms "lead-free" or "pb-free" mean semiconductor products that are compatible with the current rohs requirements for all 6 substances, including the requirement that lead not exceed 0.1% by weight in homogeneous materials. where designed to be soldered at high temperatures, ti pb-free products are suitable for use in specified lead-free processes. pb-free (rohs exempt): this component has a rohs exemption for either 1) lead-based flip-chip solder bumps used between the die and package, or 2) lead-based die adhesive used between the die and leadframe. the component is otherwise considered pb-free (rohs compatible) as defined above. green (rohs & no sb/br): ti defines "green" to mean pb-free (rohs compatible), and free of bromine (br) and antimony (sb) based flame retardants (br or sb do not exceed 0.1% by weight in homogeneous material) (3) msl, peak temp. -- the moisture sensitivity level rating according to the jedec industry standard classifications, and peak solder temperature. important information and disclaimer: the information provided on this page represents ti's knowledge and belief as of the date that it is package option addendum www.ti.com 17-jun-2008 addendum-page 1
provided. ti bases its knowledge and belief on information provided by third parties, and makes no representation or warranty as to the accuracy of such information. efforts are underway to better integrate information from third parties. ti has taken and continues to take reasonable steps to provide representative and accurate information but may not have conducted destructive testing or chemical analysis on incoming materials and chemicals. ti and ti suppliers consider certain information to be proprietary, and thus cas numbers and other limited information may not be available for release. in no event shall ti's liability arising out of such information exceed the total purchase price of the ti part(s) at issue in this document sold by ti to customer on an annual basis. package option addendum www.ti.com 17-jun-2008 addendum-page 2
tape and reel information *all dimensions are nominal device package type package drawing pins spq reel diameter (mm) reel width w1 (mm) a0 (mm) b0 (mm) k0 (mm) p1 (mm) w (mm) pin1 quadrant tps60200dgsr msop dgs 10 2500 330.0 12.4 5.3 3.4 1.4 8.0 12.0 q1 tps60202dgsr msop dgs 10 2500 330.0 12.4 5.3 3.4 1.4 8.0 12.0 q1 tps60203dgsr msop dgs 10 2500 330.0 12.4 5.3 3.4 1.4 8.0 12.0 q1 package materials information www.ti.com 29-jul-2008 pack materials-page 1
*all dimensions are nominal device package type package drawing pins spq length (mm) width (mm) height (mm) tps60200dgsr msop dgs 10 2500 340.5 338.1 20.6 tps60202dgsr msop dgs 10 2500 340.5 338.1 20.6 tps60203dgsr msop dgs 10 2500 340.5 338.1 20.6 package materials information www.ti.com 29-jul-2008 pack materials-page 2
important notice texas instruments incorporated and its subsidiaries (ti) reserve the right to make corrections, modifications, enhancements, improvements, and other changes to its products and services at any time and to discontinue any product or service without notice. customers should obtain the latest relevant information before placing orders and should verify that such information is current and complete. all products are sold subject to ti?s terms and conditions of sale supplied at the time of order acknowledgment. ti warrants performance of its hardware products to the specifications applicable at the time of sale in accordance with ti?s standard warranty. testing and other quality control techniques are used to the extent ti deems necessary to support this warranty. except where mandated by government requirements, testing of all parameters of each product is not necessarily performed. ti assumes no liability for applications assistance or customer product design. customers are responsible for their products and applications using ti components. to minimize the risks associated with customer products and applications, customers should provide adequate design and operating safeguards. ti does not warrant or represent that any license, either express or implied, is granted under any ti patent right, copyright, mask work right, or other ti intellectual property right relating to any combination, machine, or process in which ti products or services are used. information published by ti regarding third-party products or services does not constitute a license from ti to use such products or services or a warranty or endorsement thereof. use of such information may require a license from a third party under the patents or other intellectual property of the third party, or a license from ti under the patents or other intellectual property of ti. reproduction of ti information in ti data books or data sheets is permissible only if reproduction is without alteration and is accompanied by all associated warranties, conditions, limitations, and notices. reproduction of this information with alteration is an unfair and deceptive business practice. ti is not responsible or liable for such altered documentation. information of third parties may be subject to additional restrictions. resale of ti products or services with statements different from or beyond the parameters stated by ti for that product or service voids all express and any implied warranties for the associated ti product or service and is an unfair and deceptive business practice. ti is not responsible or liable for any such statements. ti products are not authorized for use in safety-critical applications (such as life support) where a failure of the ti product would reasonably be expected to cause severe personal injury or death, unless officers of the parties have executed an agreement specifically governing such use. buyers represent that they have all necessary expertise in the safety and regulatory ramifications of their applications, and acknowledge and agree that they are solely responsible for all legal, regulatory and safety-related requirements concerning their products and any use of ti products in such safety-critical applications, notwithstanding any applications-related information or support that may be provided by ti. further, buyers must fully indemnify ti and its representatives against any damages arising out of the use of ti products in such safety-critical applications. ti products are neither designed nor intended for use in military/aerospace applications or environments unless the ti products are specifically designated by ti as military-grade or "enhanced plastic." only products designated by ti as military-grade meet military specifications. buyers acknowledge and agree that any such use of ti products which ti has not designated as military-grade is solely at the buyer's risk, and that they are solely responsible for compliance with all legal and regulatory requirements in connection with such use. ti products are neither designed nor intended for use in automotive applications or environments unless the specific ti products are designated by ti as compliant with iso/ts 16949 requirements. buyers acknowledge and agree that, if they use any non-designated products in automotive applications, ti will not be responsible for any failure to meet such requirements. following are urls where you can obtain information on other texas instruments products and application solutions: products applications amplifiers amplifier.ti.com audio www.ti.com/audio data converters dataconverter.ti.com automotive www.ti.com/automotive dsp dsp.ti.com broadband www.ti.com/broadband clocks and timers www.ti.com/clocks digital control www.ti.com/digitalcontrol interface interface.ti.com medical www.ti.com/medical logic logic.ti.com military www.ti.com/military power mgmt power.ti.com optical networking www.ti.com/opticalnetwork microcontrollers microcontroller.ti.com security www.ti.com/security rfid www.ti-rfid.com telephony www.ti.com/telephony rf/if and zigbee? solutions www.ti.com/lprf video & imaging www.ti.com/video wireless www.ti.com/wireless mailing address: texas instruments, post office box 655303, dallas, texas 75265 copyright ? 2008, texas instruments incorporated

▲Up To Search▲

Price & Availability of TPS60200-15

	To Download TPS60200-15 Datasheet File
If you can't view the Datasheet, Please click here to try to view without PDF Reader .