marking information for marking information, contact our sales representative directly or through a richtek distributor located in your area, otherwise visit our website for detail. ordering information general description the rt9193 is designed for portable rf and wireless applications with demanding performance and space requirements. the rt9193 performance is optimized for battery-powered systems to deliver ultra low noise and low quiescent current. a noise bypass pin is available for further reduction of output noise. regulator ground current increases only slightly in dropout, further prolonging the battery life. the rt9193 also works with low-esr ceramic capacitors, reducing the amount of board space necessary for power applications, critical in hand-he ld wireless devices. the rt9193 consumes less than 0.01 a in shutdown mode and has fast turn-on time less than 50 s. the other features include ultra low dropout voltage, high output accuracy, current limiting protection, and high ripple rejection ratio. available in the 5-lead of sc-70, sot-23 and wdfn-6l 2x2 packages. features z z z z z ultra-low-noise for rf application z z z z z ultra-fast response in line/load transient z z z z z quick start-up (typically 50 s) z z z z z < 0.01 a standby current when shutdown z z z z z low dropout : 220mv @ 300ma z z z z z wide operating voltage ranges : 2.5v to 5.5v z z z z z ttl-logic-controlled shutdown input z z z z z low temperature coefficient z z z z z current limiting protection z z z z z thermal shutdown protection z z z z z only 1 f output capacitor required for stability z z z z z high power supply rejection ratio z z z z z custom voltage available z z z z z rohs compliant and 100% lead (pb)-free applications z cdma/gsm cellular handsets z battery-powered equipment z laptop, palmtops, notebook computers z hand-held instruments z pcmcia cards z portable information appliances pin configurations (top view) sc-70-5/sot-23-5 wdfn-6l 2x2 vin gnd bp vout en 2 3 5 4 1 en gnd bp nc vout vin 5 4 1 2 3 6 rt9193- package type u5 : sc-70-5 b : sot-23-5 qw : wdfn-6l 2x2 (w-type) output voltage 15 : 1.5v 16 : 1.6v : 49 : 4.9v 50 : 5.0v 1h : 1.85v 2h : 2.85v 4g : 4.75v operating temperature range p : pb free with commercial standard g : green (halogen free with commer- cial standard) rt9193 product specification 1 of 4 4008-318-123 sales@twtysemi.com http://www.twtysemi.com
function block diagram functional pin description pin name pin function en chip enable (active high). note that this pin is high impedance. there should be a pull low 100k resistor connected to gnd when t he control signal is floating. bp reference noise bypass gnd ground vout output voltage vin power input voltage typical application circuit current-limit and thermal protection mos driver + - vout shutdown and logic control vin error amplifier v ref bp en gnd quick start vin gnd vout rt9193 c out 1uf/x7r c in 1uf/x7r v in v out en bp c bp 22nf chip enable rt9193 product specification 2 of 4 4008-318-123 sales@twtysemi.com http://www.twtysemi.com
electrical characteristics (v in = v out + 1v, c in = c out = 1 f, c bp = 22nf, t a = 25 c, unless otherwise specified) parameter symbol test conditions min typ max units output voltage accuracy v out i out = 1ma ? 2 -- +2 % current limit i lim r load = 1 360 400 -- ma quiescent current i q v en 1.2v, i out = 0ma -- 90 130 a i out = 200ma, v out > 2.8v 170 200 dropout voltage (note 5) v drop i out = 300ma, v out > 2.8v -- 220 300 mv line regulation v line v in = (v out + 1v) to 5.5v, i out = 1ma -- -- 0.3 % load regulation v load 1ma < i out < 300ma -- -- 0.6 % standby current i stby v en = gnd, shutdown -- 0.01 1 a en input bias current i ibsd v en = gnd or vin -- 0 100 na logic-low voltage v il v in = 3v to 5.5v, shutdown -- -- 0.4 en threshold logic-high voltage v ih v in = 3v to 5.5v, start-up 1.2 -- -- v output noise voltage e no 10hz to 100khz, i out = 200ma c out = 1 f -- 100 -- v rms f = 100hz -- ? 70 -- power supply rejection rate f = 10khz psrr c out = 1 f, i out = 10ma -- ? 50 -- db thermal shutdown temperature t sd -- 165 -- c absolute maximum ratings (note 1) z supply input v oltage ------------------------------------------------------------------------------------------------------ 6v z power dissipation, p d @ t a = 25 c sc-70-5 ---------------------------------------------------------------------------------------------------------------------- 300mw sot-23-5 -------------------------------------------------------------------------------------------------------------------- 400mw wdfn-6l 2x2 -------------------------------------------------------------------------------------------------------------- 606mw z package thermal resistance (note 4) sot-70-5, ja --------------------------------------------------------------------------------------------------------------- 333 c/w sot-23-5, ja --------------------------------------------------------------------------------------------------------------- 250 c/w wdfn-6l 2x2, ja --------------------------------------------------------------------------------------------------------- 165 c/w z junction temperature ----------------------------------------------------------------------------------------------------- 150 c z lead temperature (soldering, 10 sec.) ------------------------------------------------------------------------------- 260 c z storage temperature range -------------------------------------------------------------------------------------------- ? 65 c to 150 c z esd susceptibility (note 2) hbm (human body mode) ---------------------------------------------------------------------------------------------- 2kv mm (ma chine mode) ------------------------------------------------------------------------------------------------------ 200v recommended operating conditions (note 3) z supply input v oltage ------------------------------------------------------------------------------------------------------ 2.5v to 5.5v z en input v oltage ----------------------------------------------------------------------------------------------------------- 0v t o 5.5v z junction temperature range -------------------------------------------------------------------------------------------- ? 40 c to 125 c z ambient temperature range -------------------------------------------------------------------------------------------- ? 40 c to 85 c to be continued rt9193 product specification 3 of 4 4008-318-123 sales@twtysemi.com http://www.twtysemi.com
note 1. stresses listed as the above "absolute maximum ratings" may cause permanent damage to the device. these are for stress ratings. functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. exposure to absolute maximum rating conditions for extended periods may remain possibility to affect device reliability. note 2. devices are esd sensitive. handling precaution recommended. note 3. the device is not guaranteed to function outside its operating conditions. note 4. ja is measured in the natural convection at t a = 25 c on a low effective thermal conductivity test board (single layer, 1s) of jedec 51-3 thermal measurement standard. note 5. the dropout voltage is defined as v in -v out , which is measured when v out is v out(normal) ? 100mv. parameter symbol test conditions min typ max units thermal shutdown temperature h y steresis t sd -- 30 -- c rt9193 product specification 4 of 4 4008-318-123 sales@twtysemi.com http://www.twtysemi.com
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