tle7274-2 5-v low dropout voltage regulator data sheet, rev. 1.0, june 2009 automotive power
pg-ssop-14 exposed pad pg-to252-3 pg-to263-3 type package marking TLE7274-2E pg-ssop-14 exposed pad 7274-2e tle7274-2d pg-to252-3 7274-2d tle7274-2g pg-to263-3 7274-2g data sheet 2 rev. 1.0, 2009-06-01 tle7274-2 5-v low dropout voltage regulator 1overview features ? ultra low current consumption 20 a ? output voltage 5 v 2% ? output current up to 300 ma ? very low dropout voltage ? output current limitation ? overtemperature shutdown ? wide temperature range from -40 c up to 150 c ? green product (rohs compliant) ? aec qualified description the tle7274-2 is a monolithic integrated low dropout voltage regulator for load currents up to 300 ma. an input voltage up to 42 v is regulated to v q,nom = 5.0 v with a precision of 2%. the sophisticated design allows to achieve stable operation even wit h ceramic output capacitors down to 470 nf. the device is designed for th e harsh environment of automotive applications. therefore it is protec ted against overload, short circuit and overtemperature conditions by the im plemented output current limitation and the overtemperature shutdown ci rcuit. the tle7274-2 can be also used in all other applic ations requiring a stabilized 5 v voltage. due to its ultra low quiescent current of typically 20 a the tle7274-2 is dedicated for use in applications permanently connected to v bat . an integrated output sink current circuitr y keeps the voltage at the output pin q below 5.5 v even in case of occuring reverse currents. thus connected devices are protected from overvoltage damage. for applications requiring extremely low noise levels the infineon voltage regulator family tle 42xx and tle 44xx is more suited than the tle7274-2. a mv- range output noise on the tle7274-2 caused by the charge pump operation is unavoidable due to the ultra low quiescent current concept.
data sheet 3 rev. 1.0, 2009-06-01 tle7274-2 block diagram 2 block diagram figure 1 block diagram tle7274-2 gnd aeb03613.vsd i q bandgap reference charge pump overtemperature shutdown 1
tle7274-2 pin configuration data sheet 4 rev. 1.0, 2009-06-01 3 pin configuration 3.1 pin assignment pg-ssop-14 exposed pad figure 2 pin configuration (top view) 3.2 pin definitions and funct ions pg-ssop-14 exposed pad pin no. symbol function 1,2,3,5,6,7 n.c. non connected can be open or connected to gnd 4gnd ground 8,10,11,12,14 n.c. non connected can be open or connected to gnd 9q output block to ground with a capacitor close to the ic terminals, respecting the values given for its capacitance and esr in ?functional range? on page 6 13 i input block to ground directly at the ic with a ceramic capacitor pad ? exposed pad connect to gnd and heatsink area q f q f 4 q f q f q f , q f q f q f q f * 1 ' q f q f 7 / ( b 3 , 1 & |