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rev.2.0 _00 ultra low current consumption and low dropout cmos voltage regulator s-1206 series seiko instruments inc. 1 the s-1206 series is a positive voltage regulator with ultra low current consumption, low dropout voltage, high output voltage accuracy, and 250 ma output current developed based on cmos technology. i/o capacitors are as small as 0.1 f. s-1206 series operates at ultra low current consumption of 1.0 a (typ.). the built-in low-on-resistance transis tor realizes low dropout voltage and high output current. a built-in overcu rrent protection circuit prevents the load current from exceeding the cu rrent capacitance of the output transistor. three packages, sot-23-3, sot-89-3, and snt-6a(h), are available. compared with voltage regulators usi ng a conventional cmos process, more types of capacitors, including small i/o capacitors, can be used with the s-1206 series. the s-1206 series features ultra-low current consumption and comes in a small pa ckage, making them most suitable for portable equipment. ? features ? output voltage : 1.2 v to 5. 2 v, selectable in 0.05 v steps. ? low equivalent series resistance capacitor can be used : a ceramic capacitor of 0.1 f or more can be used for the i/o capacitor. ? wide input voltage range : 1.7 v to 6.5 v ? high-accuracy output voltage : 1.0% (1.2 v to 1.45 v output product : 15 mv) ? low dropout voltage : 150 mv typ. (3.0 v output product, at i out = 100 ma) ? low current consumption : during operation : 1.0 a typ., 1.5 a max. ? high output current : 250 ma output is possible. (3.0 v output product, at v in v out(s) + 1.0 v) *1 ? built-in overcurrent protection circuit : over current of output transis tor can be restricted. ? small package : sot-23-3, sot-89-3, snt-6a(h) ? lead-free products *1. attention should be paid to the power dissipation of the package when the out put current is large. ? applications ? power supply for battery-powered devices ? constant-voltage power supply for cellular phones ? constant-voltage power s upply for portable equipments ? packages drawing code package name package tape reel land sot-23-3 mp003-c mp003-c mp003-z ? sot-89-3 up003-a up003-a up003-a ? snt-6a(h) pi006-a pi006-a pi006-a pi006-a
ultra low current consumption and low dropout cmos voltage regulator s-1206 series rev.2.0 _00 seiko instruments inc. 2 ? block diagram vin vss vout *1 reference voltage circuit overcurrent protection circuit ? + *1. parasitic diode figure 1
ultra low current consumption and low dropout cmos voltage regulator rev.2.0 _00 s-1206 series seiko instruments inc. 3 ? product name structure the output voltage value and package types for the s-1206 series can be selected at the user?s request. refer to ? 1. product name ? for the construction of the product name and ? 2. product name list ? for the full product names. 1. product name s-1206 b xx - xxxx g package name (abbreviation) and packing specifications *1 m3t1 : sot-23-3, tape u3t1 : sot-89-3, tape i6t2 : snt-6a(h), tape output voltage value 12 to 52 (e.g. when output voltage is 1.2 v, it is expressed as 12.) *1. refer to the tape specifications.
ultra low current consumption and low dropout cmos voltage regulator s-1206 series rev.2.0 _00 seiko instruments inc. 4 2. product name list table 1 output voltage sot-23-3 sot-89-3 snt-6a(h) 1.2 v 15 mv s-1206b12-m3t1g s-1206b12-u3t1g s-1206b12-i6t2g 1.3 v 15 mv s-1206b13-m3t1g s-1206b13-u3t1g s-1206b13-i6t2g 1.4 v 15 mv s-1206b14-m3t1g s-1206b14-u3t1g s-1206b14-i6t2g 1.5 v 1.0% s-1206b15-m3t1g s-1206b15-u3t1g s-1206b15-i6t2g 1.6 v 1.0% s-1206b16-m3t1g s-1206b16-u3t1g s-1206b16-i6t2g 1.7 v 1.0% s-1206b17-m3t1g s-1206b17-u3t1g s-1206b17-i6t2g 1.8 v 1.0% s-1206b18-m3t1g s-1206b18-u3t1g s-1206b18-i6t2g 1.85 v 1.0% s-1206b1j-m3t1g s-1206b1j -u3t1g s-1206b1j-i6t2g 1.9 v 1.0% s-1206b19-m3t1g s-1206b19-u3t1g s-1206b19-i6t2g 2.0 v 1.0% s-1206b20-m3t1g s-1206b20-u3t1g s-1206b20-i6t2g 2.1 v 1.0% s-1206b21-m3t1g s-1206b21-u3t1g s-1206b21-i6t2g 2.2 v 1.0% s-1206b22-m3t1g s-1206b22-u3t1g s-1206b22-i6t2g 2.3 v 1.0% s-1206b23-m3t1g s-1206b23-u3t1g s-1206b23-i6t2g 2.4 v 1.0% s-1206b24-m3t1g s-1206b24-u3t1g s-1206b24-i6t2g 2.5 v 1.0% s-1206b25-m3t1g s-1206b25-u3t1g s-1206b25-i6t2g 2.6 v 1.0% s-1206b26-m3t1g s-1206b26-u3t1g s-1206b26-i6t2g 2.7 v 1.0% s-1206b27-m3t1g s-1206b27-u3t1g s-1206b27-i6t2g 2.8 v 1.0% s-1206b28-m3t1g s-1206b28-u3t1g s-1206b28-i6t2g 2.85 v 1.0% s-1206b2j-m3t1g s-1206b2j -u3t1g s-1206b2j-i6t2g 2.9 v 1.0% s-1206b29-m3t1g s-1206b29-u3t1g s-1206b29-i6t2g 3.0 v 1.0% s-1206b30-m3t1g s-1206b30-u3t1g s-1206b30-i6t2g 3.1 v 1.0% s-1206b31-m3t1g s-1206b31-u3t1g s-1206b31-i6t2g 3.2 v 1.0% s-1206b32-m3t1g s-1206b32-u3t1g s-1206b32-i6t2g 3.3 v 1.0% s-1206b33-m3t1g s-1206b33-u3t1g s-1206b33-i6t2g 3.4 v 1.0% s-1206b34-m3t1g s-1206b34-u3t1g s-1206b34-i6t2g 3.5 v 1.0% s-1206b35-m3t1g s-1206b35-u3t1g s-1206b35-i6t2g 3.6 v 1.0% s-1206b36-m3t1g s-1206b36-u3t1g s-1206b36-i6t2g 3.7 v 1.0% s-1206b37-m3t1g s-1206b37-u3t1g s-1206b37-i6t2g 3.8 v 1.0% s-1206b38-m3t1g s-1206b38-u3t1g s-1206b38-i6t2g 3.9 v 1.0% s-1206b39-m3t1g s-1206b39-u3t1g s-1206b39-i6t2g 4.0 v 1.0% s-1206b40-m3t1g s-1206b40-u3t1g s-1206b40-i6t2g 4.1 v 1.0% s-1206b41-m3t1g s-1206b41-u3t1g s-1206b41-i6t2g 4.2 v 1.0% s-1206b42-m3t1g s-1206b42-u3t1g S-1206B42-I6T2G 4.3 v 1.0% s-1206b43-m3t1g s-1206b43-u3t1g s-1206b43-i6t2g 4.4 v 1.0% s-1206b44-m3t1g s-1206b44-u3t1g s-1206b44-i6t2g 4.5 v 1.0% s-1206b45-m3t1g s-1206b45-u3t1g s-1206b45-i6t2g 4.6 v 1.0% s-1206b46-m3t1g s-1206b46-u3t1g s-1206b46-i6t2g 4.7 v 1.0% s-1206b47-m3t1g s-1206b47-u3t1g s-1206b47-i6t2g 4.8 v 1.0% s-1206b48-m3t1g s-1206b48-u3t1g s-1206b48-i6t2g 4.9 v 1.0% s-1206b49-m3t1g s-1206b49-u3t1g s-1206b49-i6t2g 5.0 v 1.0% s-1206b50-m3t1g s-1206b50-u3t1g s-1206b50-i6t2g 5.1 v 1.0% s-1206b51-m3t1g s-1206b51-u3t1g s-1206b51-i6t2g 5.2 v 1.0% s-1206b52-m3t1g s-1206b52-u3t1g s-1206b52-i6t2g remark please contact our sales office for products with output voltage va lues other than the above.
ultra low current consumption and low dropout cmos voltage regulator rev.2.0 _00 s-1206 series seiko instruments inc. 5 ? pin configurations table 2 pin no. symbol description 1 vin input voltage pin 2 vss gnd pin 3 vout output voltage pin 1 2 3 sot-23-3 top view figure 2 table 3 pin no. symbol description 1 vss gnd pin 2 vin input voltage pin 3 vout output voltage pin sot-89-3 top view 3 2 1 figure 3 table 4 pin no. symbol description 1 vout output voltage pin 2 vin input voltage pin 3 vss gnd pin 4 nc *1 no connection 5 vin input voltage pin 6 nc *1 no connection snt-6a(h) top view 1 2 3 4 6 5 figure 4 *1. the nc pin is electrically open. the nc pin can be connected to vin or vss.
ultra low current consumption and low dropout cmos voltage regulator s-1206 series rev.2.0 _00 seiko instruments inc. 6 ? absolute maximum ratings table 5 (ta = 25 c unless otherwise specified) item symbol absolute maximum rating unit input voltage v in v ss ? 0.3 to v ss + 7 v output voltage v out v ss ? 0.3 to v in + 0.3 v sot-23-3 430 *1 mw sot-89-3 1000 *1 mw power dissipation snt-6a(h) p d 500 *1 mw operating ambient temperature t opr ? 40 to + 85 c storage temperature t stg ? 40 to + 125 c *1. when mounted on board [mounted board] (1) board size : 114.3 mm 76.2 mm t1.6 mm (2) board name : jedec standard51-7 caution the absolute maximum ra tings are rated values exceeding whic h the product could suffer physical damage. these values must therefor e not be exceeded under any conditions. 0 50 100 150 1200 800 0 power dissipation (p d ) [mw] ambient temperature (ta) [ c] sot-89-3 400 1000 600 200 snt-6a ( h ) sot-23-3 figure 5 power dissipation of package (when mounted on board)
ultra low current consumption and low dropout cmos voltage regulator rev.2.0 _00 s-1206 series seiko instruments inc. 7 ? electrical characteristics table 6 (ta = 25 c unless otherwise specified) item symbol condition min. typ. max. unit measurement circuit v in = v out(s) + 1.0 v, i out = 30 ma, 1.2 v v out(s) < 1.5 v v out(s) ? 15 mv v out(s) v out(s) + 15 mv v 1 output voltage *1 v out(e) v in = v out(s) + 1.0 v, i out = 30 ma, 1.5 v v out(s) v out(s) 0.99 v out(s) v out(s) 1.01 v 1 v in v out(s) + 1.0 v, 1.2 v v out(s) < 1.5 v 150 *5 ? ? ma 3 output current *2 i out v in v out(s) + 1.0 v, 1.5 v v out(s) 250 *5 ? ? ma 3 1.2 v v out(s) < 1.3 v 0.5 0.54 0.81 v 1 1.3 v v out(s) < 1.4 v ? 0.50 0.73 v 1 1.4 v v out(s) < 1.5 v ? 0.43 0.66 v 1 1.5 v v out(s) < 1.7 v ? 0.35 0.53 v 1 1.7 v v out(s) < 1.9 v ? 0.33 0.50 v 1 1.9 v v out(s) < 2.1 v ? 0.26 0.43 v 1 2.1 v v out(s) < 3.0 v ? 0.23 0.36 v 1 dropout voltage *3 v drop i out = 100 ma 3.0 v v out(s) 5.2 v ? 0.15 0.23 v 1 i out = 1 a ? 0.05 0.2 %/v 1 line regulation out in 1 out v v v ? ? ? v out(s) + 0.5 v v in 6.5 v i out = 30 ma ? 0.05 0.2 %/v 1 load regulation ? v out2 v in = v out(s) + 1.0 v, 1 a i out 100 ma ? 20 40 mv 1 output voltage temperature coefficient *4 out out v ta v ? ? ? v in = v out(s) + 1.0 v, i out = 30 ma, ? 40c ta 85c ? 120 ? ppm/ c 1 current consumption during operation i ss1 v in = v out(s) + 1.0 v, no load ? 1.0 1.5 a 2 input voltage v in ? 1.7 ? 6.5 v ? 1.2 v v out < 2.3 v ? 130 ? ma 3 short-circuit current i short v in = v out(s) + 1.0 v, v out = 0 v 2.3 v v out 5.2 v ? 100 ? ma 3 *1. v out(s) : specified output voltage v out(e) : actual output voltage at the fixed load output voltage when fixing i out (= 30 ma) and inputting v out(s) + 1.0 v *2. output current at which the output voltage becomes 95% of v out(e) after gradually increasing the output current. *3. v drop = v in1 ? (v out3 0.98) v out3 : output voltage when v in = v out(s) + 1.0 v and i out = 100 ma v in1 : input voltage at which the output voltage becomes 98% of v out3 after gradually decreasing the input voltage *4. the change in temperature [mv/c] is calculated using the following equation. [] [] [] 1000 c ppm/ v ta v v v c mv/ ta v out out out(s) out ? ? ? = ? ? 3 * 2 * *1 *1. temperature change ratio of the output voltage *2. specified output voltage *3. output voltage temperature coefficient *5. the output current can be supplied at least to this value. due to restrictions on the package power dissipation, this value may not be satisfied. attention should be paid to the power dissipation of the package when the output current is large. this specification is guaranteed by design.
ultra low current consumption and low dropout cmos voltage regulator s-1206 series rev.2.0 _00 seiko instruments inc. 8 ? measurement circuits 1. + vout vin vss + v a figure 6 2. vout vin vss a + figure 7 3. vout vin vss + v + a figure 8
ultra low current consumption and low dropout cmos voltage regulator rev.2.0 _00 s-1206 series seiko instruments inc. 9 ? standard circuit c in *1 c l *2 input output gnd single gnd vout vin vss *1. a capacitor for stabilizing the input. *2. a ceramic capacitor of 0.1 f or more can be used. figure 9 caution the above connection diag ram and constant will not guarantee successful operation. perform thorough evaluation using the actual application to set the constant. ? application conditions input capacitor (c in ) : 0.1 f or more output capacitor (c l ) : 0.1 f or more (ceramic capacitor) caution a general series regulator may oscillate, depending on the exter nal components selected. check that no oscillation occurs in the actua l device using the above capacitor. ? selection of input capacitor (c in ) and output capacitor (c l ) the s-1206 series requires an output capacitor between the vo ut pin and vss pin for phase compensation. operation is stabilized by a ceramic capac itor with an output capacitance of 0.1 f or more in the entire temperature range. however, when using an os capacitor, tantalum capacit or, or aluminum electrolytic capacitor with a capacitance of 0.1 f or more less is required. the value of the output overshoot or undershoot transi ent response varies depending on the value of the output capacitor. the required capacitance of the input c apacitor differs depending on the application. the recommended value for an application is 0.1 f or more for c in and 0.1 f or more for c l ; however, when selecting these capacitors, perform sufficient evaluation, including evaluat ion of temperature characteristics, on the actual device.
ultra low current consumption and low dropout cmos voltage regulator s-1206 series rev.2.0 _00 seiko instruments inc. 10 ? technical terms 1. low dropout voltage regulator the low dropout voltage regulator is a voltage regulator whose dropout voltage is low due to its built-in low-on- resistance transistor. 2. low equivalent series resistance a capacitor whose equivalent series resistance (r esr ) is low. the s-1206 series enables use of a low equivalent series resistance capacitor, such as a cera mic capacitor, for the output-side capacitor (c l ). 3. output voltage (v out ) the accuracy of the output voltage is ensured at 1.0% or 15 mv *2 under the specified conditions of fixed input voltage *1 , fixed output current, and fixed temperature. *1. differs depending on the product. *2. when v out < 1.5 v : 15 mv, when 1.5 v v out : 1.0% caution if the above conditions ch ange, the output voltage value may vary and exceed the accuracy range of the output voltage. refer to the ? ? electrical characteristics? and ? ? characteristics (typical data)? for details. 4. line regulation ? ? ? ? ? ? ? ? ? out in out1 v ? v ? v indicates the dependency of the output voltage on the input voltage. that is, the values show how much the output voltage changes due to a change in the input voltage with the output current remaining unchanged. 5. load regulation ( ? v out2 ) indicates the dependency of the output voltage on the output current. that is, the values show how much the output voltage changes due to a change in the output current with the input voltage remaining unchanged. 6. dropout voltage (v drop ) indicates the difference between the input voltage (v in1 ), which is the input voltage (v in ) at the point where the output voltage has fallen to 98% of the output voltage value (v out3 ) after v in was gradually decreased from v in = v out(s) + 1.0 v, and the output voltage at that point (v out3 0.98). v drop = v in1 ? (v out3 0.98)
ultra low current consumption and low dropout cmos voltage regulator rev.2.0 _00 s-1206 series seiko instruments inc. 11 7. temperature coefficient of output voltage ? ? ? ? ? ? ? ? ? out out v ? ta ? v the shadowed area in figure 10 is the range where v out varies in the operating temperature range when the temperature coefficient of the output voltage is 120 ppm/ c. e.g. s-1206b30 typ. ? 40 25 + 0.36 mv/ c v out [v] 85 ta [ c] v out(e) *1 ? 0.36 mv/ c *1. v out(e) is the value of the output voltage measured at 25 c. figure 10 a change in the temperature of the output voltage [mv/ c] is calculated using the following equation. [] [] [] 1000 c ppm/ v ta v v v c mv/ ta v out out out(s) out ? ? ? = ? ? 3 * 2 * *1 *1. the temperature change ratio of the output voltage *2. specified output voltage *3. output voltage temperature coefficient
ultra low current consumption and low dropout cmos voltage regulator s-1206 series rev.2.0 _00 seiko instruments inc. 12 ? operation 1. basic operation figure 11 shows the block diagram of the s-1206 series. the error amplifier compares the reference voltage (v ref ) with v fb , which is the output voltage resistance-divided by feedback resistors r s and r f . it supplies the output transistor with the gate voltage necessary to ensure a certain output voltage free of any fluctuations of input voltage and temperature. vout *1 vss vin r s r f error amplifier constant current supply v ref v fb ? + reference voltage circuit *1. parasitic diode figure 11 2. output transistor the s-1206 series uses a low-on-resistance p- channel mos fet as the output transistor. be sure that v out does not exceed v in + 0.3 v to prevent the ic from being damaged due to inverse current flowing from the vout pin through a parasitic diode to the vin pin. 3. overcurrent protector the s-1206 series has an overcurrent protection ci rcuit having the characteristics shown in ? (1) output voltage vs. output current (ta = 25 c) ? in ? ? characteristics (typical data) ?, in order to protect the output transistor against an excessive output current and short circuiti ng between the vout and vss pins. the current (i short ) when the output pin is short-circuited is internally set at approx. 130 ma (typ.) ( 1.2 v v out < 2.3 v ) or approx. 100 ma (typ.) (2.3 v v out < 5.2 v ), and the normal value is restored for the output voltage, if releasing a short circuit once. caution using the overcurrent protection circuit is to protect the output transistor from accidental conditions such as short circuited load and the rapid and large current flow in the large capacitor. the overcurrent protection circuit is not suitable for use under the short circuit status or large current flowing (150 ma or more ( 1.2 v v out(s) < 1.5 v ), or 250 ma or more ( 1.5 v v out(s) )) that last long.
ultra low current consumption and low dropout cmos voltage regulator rev.2.0 _00 s-1206 series seiko instruments inc. 13 ? precautions ? wiring patterns for the vin pin, vout pin and gnd pi n should be designed so that the impedance is low. when mounting an output capac itor between the vout pin and vss pin (c l ) and a capacitor for stab ilizing the input between the vin pin and vss pin (c in ), the distance from the capacitors to t hese pins should be as short as possible. ? note that the output voltage may generally increase when a series regulator is used at low load current (10 a or less). ? note that the output voltage may generally increase due to driver leakage when a series regulator is used at high temperatures. ? generally a series regulator may cause oscillation, depending on the selecti on of external parts. the following conditions are recommended for this ic. however, be sure to perform sufficient evaluation under the actual usage conditions for selection, including evaluation of temperatur e characteristics. for the equivalent series resistance (r esr ) of the output capacitor, refer to (5) equivalent series resistance vs. output current characteristics example (ta = 25 c) in ? ? reference data ?. input capacitor (c in ) : 0.1 f or more output capacitor (c l ) : 0.1 f or more use an i/o capacitor with good temperat ure characteristics (conforming to the ceramic capacitor eia x5r (jis b) characteristics). ? the voltage regulator may oscillate w hen the impedance of the power supply is high and the i nput capacitance is small or an input capacitor is not connected. ? if the output capacitance is small, the power supply fluct uation and load fluctuation characteristics become worse. sufficiently evaluate the output voltage fluctuation with the actual device. ? if the power supply suddenly increases sharply when the out put capacitance is small, a momentary overshoot may be output. it is therefore important to sufficiently evaluate t he output voltage at power application in the actual device. ? the application conditions for the input voltage, output voltage, and load current should not exceed the package power dissipation. ? do not apply an electrostatic discharge to this ic that ex ceeds the performance ratings of the built-in electrostatic protection circuit. ? in determining the output current, attention should be paid to the output current value specified in table 6 in ? ? electrical characteristics ? and footnote *5 of the table. ? sii claims no responsibility for any disput es arising out of or in connection with any infringement by products including this ic of patents owned by a third party.
ultra low current consumption and low dropout cmos voltage regulator s-1206 series rev.2.0 _00 seiko instruments inc. 14 ? characteristics (typical data) (1) output voltage vs. output current (ta = 25 c) s-1206b12 s-1206b30 100 200 300 v out [v] i out [ma] 0 1.4 0.4 0.8 0.6 1.0 1.2 400 0 0.2 v in = 2.2 v 500 600 700 3.2 v 6.5 v 1.5 v 1.7 v 100 200 300 v out [v] i out [ma] 0 3.5 1.0 2.0 1.5 2.5 3.0 400 0 0.5 v in = 3.5 v 500 600 700 4.0 v 5.0 v 3.3 v 6.5 v s-1206b50 100 200 300 v out [v] i out [ma] 0 6 1 3 2 4 5 400 0 v in = 5.5 v 500 600 700 6.0 v 6.5 v 5.3 v remark in determining the output current, attention should be paid to the following. 1. minimum output current value specified in table 6 and footnote *5 in ? ? electrical characteristics ? 2. power dissipation of package (2) output voltage vs. input voltage (ta = 25c) s-1206b12 s-1206b30 1.5 2.0 2.5 v out [v] v in [v] 1.0 1.25 1.00 1.10 1.05 1.15 1.20 3.0 3.5 i out = 1 a 10 a 1 ma 50 ma 30 ma 100 ma 3.0 3.5 4.0 v out [v] v in [v] 2.5 3.1 2.6 2.8 2.7 2.9 3.0 4.5 5.0 i out = 1 a 10 a 1 ma 50 ma 30 ma 100 ma 2.5 s-1206b50 5.0 5.5 6.0 v out [v] v in [v] 4.5 5.1 4.6 4.8 4.7 4.9 5.0 6.5 4.5 i out = 1 a 10 a 1 ma 50 ma 30 ma 100 ma
ultra low current consumption and low dropout cmos voltage regulator rev.2.0 _00 s-1206 series seiko instruments inc. 15 (3) dropout voltage vs. output current s-1206b12 s-1206b30 50 100 150 v drop [v] i out [ma] 0 0.80 0.30 0.50 0.40 0.60 0.70 200 0 0.20 0.10 ? 40 c 25 c ta = 85 c 50 100 150 v drop [v] i out [ma] 0 0.25 0.50 300 0 0.20 0.15 0.10 0.05 ? 40 c 25 c ta = 85 c 200 250 0.30 0.35 0.40 0.45 s-1206b50 50 100 150 v drop [v] i out [ma] 0 0.20 0.35 300 0 0.15 0.10 0.05 ? 40 c 25 c ta = 85 c 0.25 0.30 250 200 (4) dropout voltage vs. set output voltage 123 v drop [v] v ota [v] 0 0.80 5 0 0.70 0.60 0.50 0.40 0.30 0.20 0.10 4 6 i out = 250 ma 150 ma 100 ma 50 ma 30 ma 10 ma
ultra low current consumption and low dropout cmos voltage regulator s-1206 series rev.2.0 _00 seiko instruments inc. 16 (5) output voltage vs. ambient temperature s-1206b12 s-1206b30 ? 25 025 v out [v] ta [ c] ? 40 1.26 1.28 75 1.10 1.24 1.22 1.20 1.18 1.16 1.14 1.12 50 85 1.30 ? 25 0 25 v out [v] ta [ c] ? 40 3.06 3.08 75 2.90 3.04 3.02 3.00 2.98 2.96 2.94 2.92 50 85 3.10 s-1206b50 ? 25 0 25 v out [v] ta [ c] ? 40 5.06 5.08 75 4.90 5.04 5.02 5.00 4.98 4.96 4.94 4.92 50 85 5.10 (6) current consumption vs. input voltage s-1206b12 s-1206b30 135 i ss1 [ a] v in [v] 0 1.6 1.8 7 1.4 1.2 1.0 24 6 0.6 0.8 0.4 0.2 0 ? 40 c 25 c ta = 85 c 135 i ss1 [ a] v in [v] 0 1.6 1.8 7 1.4 1.2 1.0 246 0.6 0.8 0.4 0.2 0 ? 40 c 25 c ta = 85 c s-1206b50 135 i ss1 [ a] v in [v] 0 1.6 1.8 7 1.4 1.2 1.0 246 0.6 0.8 0.4 0.2 0 ? 40 c 25 c ta = 85 c
ultra low current consumption and low dropout cmos voltage regulator rev.2.0 _00 s-1206 series seiko instruments inc. 17 (7) current consumption vs. ambient temperature s-1206b12 s-1206b30 ? 25 0 25 i ss1 [ a] ta [ c] ? 40 75 0 1.4 1.2 1.0 0.8 0.6 0.4 0.2 50 85 v in = 2.2 v 6.5 v ? 25 0 25 i ss1 [ a] ta [ c] ? 40 75 0 1.4 1.2 1.0 0.8 0.6 0.4 0.2 50 85 v in = 4.0 v 6.5 v s-1206b50 ? 25 0 25 i ss1 [ a] ta [ c] ? 40 75 0 1.4 1.2 1.0 0.8 0.6 0.4 0.2 50 85 v in = 6.0 v 6.5 v
ultra low current consumption and low dropout cmos voltage regulator s-1206 series rev.2.0 _00 seiko instruments inc. 18 ? reference data (1) input transient response characteristics (ta = 25c) s-1206b12 i out = 1 ma, tr = tf = 5.0 s i out = 100 ma, tr = tf = 5.0 s ? 0.2 0 0.2 v out [v] t [ms] ? 0.4 0.6 0 3.5 3.0 2.5 2.0 1.5 1.0 0.4 0.8 0.5 1.3 1.1 1.0 1.2 1.6 1.4 1.4 v in [v] v in v out c in = c l = 0.1 f 1.2 1.5 1.6 1.7 1.8 1.0 ? 0.5 c in = c l = 1.0 f v out [v] t [ms] 0 3.5 3.0 2.5 2.0 1.5 1.0 0.5 1.3 1.1 1.4 v in [v] v in v out 1.2 1.5 1.6 1.7 1.8 1.0 ? 0.5 ? 0.2 0 0.2 ? 0.4 0.6 0.4 0.8 1.0 1.2 1.6 1.4 c in = c l = 0.1 f c in = c l = 1.0 f s-1206b30 i out = 1 ma, tr = tf = 5.0 s i out = 100 ma, tr = tf = 5.0 s v out [v] t [ms] 0 6.0 5.0 4.0 3.0 2.0 1.0 2.8 3.0 v in [v] 2.6 3.2 3.4 3.6 3.8 ? 1.0 ? 2.0 4.0 4.2 v in v out ? 0.2 0 0.2 ? 0.4 0.6 0.4 0.8 1.0 1.2 1.6 1.4 c in = c l = 0.1 f c in = c l = 1.0 f v out [v] t [ms] 0 6.0 5.0 4.0 3.0 2.0 1.0 2.8 3.0 v in [v] 2.6 3.2 3.4 3.6 3.8 ? 1.0 ? 2.0 4.0 4.2 v in v out ? 0.2 0 0.2 ? 0.4 0.6 0.4 0.8 1.0 1.2 1.6 1.4 c in = c l = 0.1 f c in = c l = 1.0 f s-1206b50 i out = 1 ma, tr = tf = 5.0 s i out = 100 ma, tr = tf = 5.0 s v out [v] t [ms] 4.0 7.0 6.5 6.0 5.5 5.0 4.5 4.9 5.0 v in [v] 4.8 5.1 5.2 5.3 5.4 3.5 3.0 5.5 5.6 v in v out ? 0.2 0 0.2 ? 0.4 0.6 0.4 0.8 1.0 1.2 1.6 1.4 c in = c l = 0.1 f c in = c l = 1.0 f v out [v] t [ms] 4.0 7.0 6.5 6.0 5.5 5.0 4.5 4.9 5.0 v in [v] 4.8 5.1 5.2 5.3 5.4 3.5 3.0 5.5 5.6 v in v out ? 0.2 0 0.2 ? 0.4 0.6 0.4 0.8 1.0 1.2 1.6 1.4 c in = c l = 0.1 f c in = c l = 1.0 f
ultra low current consumption and low dropout cmos voltage regulator rev.2.0 _00 s-1206 series seiko instruments inc. 19 (2) load transient response characteristics (ta = 25 c) s-1206b12 v in = 2.2 v, i out = 1 ? 40 ma v in = 2.2 v, i out = 50 ? 100 ma v out [v] t [ms] 40 1 1.6 0.8 2.0 i out [ma] i out v out 1.2 2.4 2.8 0.4 ? 0.2 0 0.2 ? 0.4 0.6 0.4 0.8 1.0 1.2 1.6 1.4 c in = c l = 0.1 f c in = c l = 1.0 f v out [v] t [ms] 100 50 1.6 0.8 2.0 i out [ma] i out v out 1.2 2.4 2.8 0.4 ? 0.2 0 0.2 ? 0.4 0.6 0.4 0.8 1.0 1.2 1.6 1.4 c in = c l = 0.1 f c in = c l = 1.0 f s-1206b30 v in = 4.0 v, i out = 1 ? 40 ma v in = 4.0 v, i out = 50 ? 100 ma v out [v] t [ms] 40 1 3.4 2.6 3.8 i out [ma] i out v out 3.0 4.2 4.6 2.2 ? 0.2 0 0.2 ? 0.4 0.6 0.4 0.8 1.0 1.2 1.6 1.4 c in = c l = 0.1 f c in = c l = 1.0 f v out [v] t [ms] 3.4 2.6 3.8 i out v out 3.0 4.2 4.6 2.2 100 50 i out [ma] ? 0.2 0 0.2 ? 0.4 0.6 0.4 0.8 1.0 1.2 1.6 1.4 c in = c l = 0.1 f c in = c l = 1.0 f s-1206b50 v in = 6.0 v, i out = 1 ? 40 ma v in = 6.0 v, i out = 50 ? 100 ma v out [v] t [ms] 40 1 5.4 4.6 5.8 i out [ma] i out v out 5.0 6.2 6.6 4.2 ? 0.2 0 0.2 ? 0.4 0.6 0.4 0.8 1.0 1.2 1.6 1.4 c in = c l = 0.1 f c in = c l = 1.0 f v out [v] t [ms] 5.4 4.6 5.8 i out v out 5.0 6.2 6.6 4.2 100 50 i out [ma] ? 0.2 0 0.2 ? 0.4 0.6 0.4 0.8 1.0 1.2 1.6 1.4 c in = c l = 0.1 f c in = c l = 1.0 f
ultra low current consumption and low dropout cmos voltage regulator s-1206 series rev.2.0 _00 seiko instruments inc. 20 (3) input voltage transient response characteristics (ta = 25c) s-1206b12 v in = 2.2 v, i out = 1 ma v in = 2.2 v, i out = 100 ma v out [v] 1.0 0 1.5 v in v out 0.5 2.0 2.5 ? 0.5 0 ? 2 ? 4 ? 6 2 4 v in [v] ? 8 t [ms] ? 0.2 0 0.2 ? 0.4 0.6 0.4 0.8 1.0 1.2 1.6 1.4 c in = c l = 0.1 f c in = c l = 1.0 f v out [v] t [ms] 1.0 0 1.5 v in v out c in = c l = 1.0 f c in = c l = 0.1 f 0.5 2.0 2.5 ? 0.5 0 ? 2 ? 4 ? 6 2 4 v in [v] ? 8 ? 0.2 0 0.2 ? 0.4 0.6 0.4 0.8 1.0 1.2 1.6 1.4 s-1206b30 v in = 4.0 v, i out = 1 ma v in = 4.0 v, i out = 100 ma v out [v] t [ms] 4 0 6 v in v out c in = c l = 1.0 f c in = c l = 0.1 f 2 8 10 ? 2 2 0 ? 2 ? 4 4 6 v in [v] ? 6 ? 0.2 0 0.2 ? 0.4 0.6 0.4 0.8 1.0 1.2 1.6 1.4 v out [v] t [ms] 4 0 6 v in v out c in = c l = 1.0 f c in = c l = 0.1 f 2 8 10 ? 2 2 0 ? 2 ? 4 4 6 v in [v] ? 6 ? 0.2 0 0.2 ? 0.4 0.6 0.4 0.8 1.0 1.2 1.6 1.4 s-1206b50 v in = 6.0 v, i out = 1 ma v in = 6.0 v, i out = 100 ma v out [v] t [ms] 4 0 6 2 8 10 ? 2 4 2 ? 2 ? 4 v in [v] ? 6 8 6 0 ? 8 12 14 c in = c l = 1.0 f c in = c l = 0.1 f ? 0.2 0 0.2 ? 0.4 0.6 0.4 0.8 1.0 1.2 1.6 1.4 v in v out v out [v] t [ms] 4 0 6 2 8 10 ? 2 4 2 ? 2 ? 4 v in [v] ? 6 8 6 0 ? 8 v in v out 12 14 c in = c l = 1.0 f c in = c l = 0.1 f ? 0.2 0 0.2 ? 0.4 0.6 0.4 0.8 1.0 1.2 1.6 1.4
ultra low current consumption and low dropout cmos voltage regulator rev.2.0 _00 s-1206 series seiko instruments inc. 21 (4) ripple rejection (ta = 25 c) s-1206b12 v in = 2.2 v, c l = 0.1 f s-1206b30 v in = 4.0 v, c l = 0.1 f 100 1k 10k ripple rejection [db] frequency [hz] 10 1m 0 100 80 60 40 20 100k i out = 30 ma 100 1k 10k ripple rejection [db] frequency [hz] 10 1m 0 100 80 60 40 20 100k i out = 30 ma s-1206b50 v in = 6.0 v, c l = 0.1 f 100 1k 10k ripple rejection [db] frequency [hz] 10 1m 0 100 80 60 40 20 100k i out = 30 ma (5) equivalent series resistance vs. output current characteristics example (ta = 25c) c l : murata manufacturing company, ltd. grm115r71c104k (0.1 f) 100 0.001 250 i out [ma] 0 r esr [ ? ] c in = c l = 0.1
ultra low current consumption and low dropout cmos voltage regulator s-1206 series rev.2.0 _00 seiko instruments inc. 22 ? marking specifications (1) sot-23-3 (1) to (3) : product abbreviation (refer to product name vs. product code ) (4) : lot number 1 2 3 (1) (2) (3) (4) sot-23-3 top view list of product name vs. product code product code product code product name (1) (2) (3) product name (1) (2) (3) s-1206b12-m3t1g s a a s-1206b32-m3t1g s a w s-1206b13-m3t1g s a b s-1206b33-m3t1g s a x s-1206b14-m3t1g s a c s-1206b34-m3t1g s a y s-1206b15-m3t1g s a d s-1206b35-m3t1g s a z s-1206b16-m3t1g s a e s-1206b36-m3t1g s b a s-1206b17-m3t1g s a f s-1206b37-m3t1g s b b s-1206b18-m3t1g s a g s-1206b38-m3t1g s b c s-1206b1j-m3t1g s a h s-1206b39-m3t1g s b d s-1206b19-m3t1g s a i s-1206b40-m3t1g s b e s-1206b20-m3t1g s a j s-1206b41-m3t1g s b f s-1206b21-m3t1g s a k s-1206b42-m3t1g s b g s-1206b22-m3t1g s a l s-1206b43-m3t1g s b h s-1206b23-m3t1g s a m s-1206b44-m3t1g s b i s-1206b24-m3t1g s a n s-1206b45-m3t1g s b j s-1206b25-m3t1g s a o s-1206b46-m3t1g s b k s-1206b26-m3t1g s a p s-1206b47-m3t1g s b l s-1206b27-m3t1g s a q s-1206b48-m3t1g s b m s-1206b28-m3t1g s a r s-1206b49-m3t1g s b n s-1206b2j-m3t1g s a s s-1206b50-m3t1g s b o s-1206b29-m3t1g s a t s-1206b51-m3t1g s b p s-1206b30-m3t1g s a u s-1206b52-m3t1g s b q s-1206b31-m3t1g s a v remark please contact our sales office for products with output voltage values other than the above.
ultra low current consumption and low dropout cmos voltage regulator rev.2.0 _00 s-1206 series seiko instruments inc. 23 (2) sot-89-3 (1) to (3) : product abbreviation (refer to product name vs. product code ) (4) to (6) : lot number 1 3 2 (2) sot-89-3 to p vie w (1) (3) (5) (4) (6) list of product name vs. product code product code product code product name (1) (2) (3) product name (1) (2) (3) s-1206b12-u3t1g s a a s-1206b32-u3t1g s a w s-1206b13-u3t1g s a b s-1206b33-u3t1g s a x s-1206b14-u3t1g s a c s-1206b34-u3t1g s a y s-1206b15-u3t1g s a d s-1206b35-u3t1g s a z s-1206b16-u3t1g s a e s-1206b36-u3t1g s b a s-1206b17-u3t1g s a f s-1206b37-u3t1g s b b s-1206b18-u3t1g s a g s-1206b38-u3t1g s b c s-1206b1j-u3t1g s a h s-1206b39-u3t1g s b d s-1206b19-u3t1g s a i s-1206b40-u3t1g s b e s-1206b20-u3t1g s a j s-1206b41-u3t1g s b f s-1206b21-u3t1g s a k s-1206b42-u3t1g s b g s-1206b22-u3t1g s a l s-1206b43-u3t1g s b h s-1206b23-u3t1g s a m s-1206b44-u3t1g s b i s-1206b24-u3t1g s a n s-1206b45-u3t1g s b j s-1206b25-u3t1g s a o s-1206b46-u3t1g s b k s-1206b26-u3t1g s a p s-1206b47-u3t1g s b l s-1206b27-u3t1g s a q s-1206b48-u3t1g s b m s-1206b28-u3t1g s a r s-1206b49-u3t1g s b n s-1206b2j-u3t1g s a s s-1206b50-u3t1g s b o s-1206b29-u3t1g s a t s-1206b51-u3t1g s b p s-1206b30-u3t1g s a u s-1206b52-u3t1g s b q s-1206b31-u3t1g s a v remark please contact our sales office for products with output voltage values other than the above.
ultra low current consumption and low dropout cmos voltage regulator s-1206 series rev.2.0 _00 seiko instruments inc. 24 (3) snt-6a(h) (1) to (3) : product abbreviation (refer to product name vs. product code ) (4) to (6) : lot number snt-6a(h) to p view 1 2 3 4 6 5 (1) (4) (2) (5) (3) (6) list of product name vs. product code product code product code product name (1) (2) (3) product name (1) (2) (3) s-1206b12-i6t2g s a a s-1206b32-i6t2g s a w s-1206b13-i6t2g s a b s-1206b33-i6t2g s a x s-1206b14-i6t2g s a c s-1206b34-i6t2g s a y s-1206b15-i6t2g s a d s-1206b35-i6t2g s a z s-1206b16-i6t2g s a e s-1206b36-i6t2g s b a s-1206b17-i6t2g s a f s-1206b37-i6t2g s b b s-1206b18-i6t2g s a g s-1206b38-i6t2g s b c s-1206b1j-i6t2g s a h s-1206b39-i6t2g s b d s-1206b19-i6t2g s a i s-1206b40-i6t2g s b e s-1206b20-i6t2g s a j s-1206b41-i6t2g s b f s-1206b21-i6t2g s a k S-1206B42-I6T2G s b g s-1206b22-i6t2g s a l s-1206b43-i6t2g s b h s-1206b23-i6t2g s a m s-1206b44-i6t2g s b i s-1206b24-i6t2g s a n s-1206b45-i6t2g s b j s-1206b25-i6t2g s a o s-1206b46-i6t2g s b k s-1206b26-i6t2g s a p s-1206b47-i6t2g s b l s-1206b27-i6t2g s a q s-1206b48-i6t2g s b m s-1206b28-i6t2g s a r s-1206b49-i6t2g s b n s-1206b2j-i6t2g s a s s-1206b50-i6t2g s b o s-1206b29-i6t2g s a t s-1206b51-i6t2g s b p s-1206b30-i6t2g s a u s-1206b52-i6t2g s b q s-1206b31-i6t2g s a v remark please contact our sales office for products with output voltage values other than the above.

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the information described herein is subject to change without notice. seiko instruments inc. is not responsible for any problems caused by circuits or diagrams described herein whose related industrial properties, patents, or other rights belong to third parties. the application circuit examples explain typical applications of the products, and do not guarantee the success of any specific mass-production design. when the products described herein are regulated products subject to the wassenaar arrangement or other agreements, they may not be exported without authorization from the appropriate governmental authority. use of the information described herein for other purposes and/or reproduction or copying without the express permission of seiko instruments inc. is strictly prohibited. the products described herein cannot be used as part of any device or equipment affecting the human body, such as exercise equipment, medical equipment, security systems, gas equipment, or any apparatus installed in airplanes and other vehicles, without prior written permission of seiko instruments inc. although seiko instruments inc. exerts the greatest possible effort to ensure high quality and reliability, the failure or malfunction of semiconductor products may occur. the user of these products should therefore give thorough consideration to safety design, including redundancy, fire-prevention measures, and malfunction prevention, to prevent any accidents, fires, or community damage that may ensue.

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