TLE7273-2 low dropout voltage regulator data sheet, rev. 1.2, april 2009 automotive power www..net
type package marking TLE7273-2gv50 pg-dso-14 TLE7273-2gv50 TLE7273-2gv33 pg-dso-14 TLE7273-2gv33 TLE7273-2gv26 pg-dso-14 TLE7273-2gv26 TLE7273-2ev50 pg-ssop-14 exposed pad 7273 v50 pg-dso-14 pg-ssop-14 exposed pad data sheet 2 rev. 1.2, 2009-04-28 low dropout voltage regulator TLE7273-2 1overview features ? output voltage 5 v, 3.3 v or 2.6 v ? output voltage tolerance 2% up to 180ma ? ultra low quiescent cu rrent consumption < 36 a ? enable function ? very low dropout voltage ? reset with adjustab le power-on delay ? window watchdog with current dependent deactivation ? output current limitation ? wide operation range up to 45 v ? wide temperature range from -40 c to 150 c ? overtemperature shutdown ? green product (rohs compliant) ? aec qualified description the TLE7273-2 is a monolithic voltage regulator with integrated window watchdog and reset dedicated for microcontroller supplies under harsh automotive environment conditions. due to its ultra low quiescent current, the TLE7273-2 is perfectly suited for applications that are permanently connected to battery. in addition, the regulator can be shut down via the enable input causing the current consumption to drop below 3 a. the TLE7273-2 is equipped with an output current limitation and an overtemperature shutdown, prot ecting the device against overload, short ci rcuit and over-temperature. it operates in the wide junction temperature range from -40 c to 150 c.
data sheet 3 rev. 1.2, 2009-04-28 TLE7273-2 block diagram 2block diagram wd i wm 1 reset gener ator and wi ndow watchdog enabl e char ge pump TLE7273-2 over temper atur e shutdown bandgap refer ence 1 en q ro wm 2 i gnd figure 1 block diagram
TLE7273-2 pin configuration data sheet 4 rev. 1.2, 2009-04-28 3 pin configuration 3.1 pin assignment (pg-dso-14) en gnd wm1 wm2 gnd 8 wdi 12 11 gnd gnd 1 2 3 4 5 gnd 6 7 14 13 ro gnd 9 10 aep02113_7273 gnd i q figure 2 pin assignment pg-dso-14 (top view) 3.2 pin definitions an d functions (pg-dso-14) table 1 pin definitions and functions pin no. symbol function 1 ro reset output TLE7273-2gv33, TLE7273-2gv26: open drain output; TLE7273-2gv50: integrated 20 k pull-up resistor to output q; leave open if not needed 2-5, 10-12 gnd ground connect pin 2 and 3 to gnd; connect pin 4-5 and 10-12 to heat sink area with gnd potential 7 wm1 watchdog mode bit 1 watchdog and reset mode selection, see ?window watchdog state diagram, watchdog and reset modes? on page 9 ; connect to q or gnd 6 wm2 watchdog mode bit 2 watchdog and reset mode selection, see ?window watchdog state diagram, watchdog and reset modes? on page 9 ; connect to q or gnd 8 wdi watchdog input trigger input for watchdog pulses; to turn off watchdog connect to gnd and connect pin wm1 and wm2 to q 9 q output voltage block to gnd with a ceramic capacitor cl ose to the ic terminals, respecting the values given for its capacitance and esr in ?functional range? on page 7 13 i input voltage block to ground directly at the ic with a 100 nf ceramic capacitor 14 en enable input low level disables the ic; integrated pull-down resistor to gnd
data sheet 5 rev. 1.2, 2009-04-28 TLE7273-2 pin configuration 3.3 pin assignments (pg-ssop-14 exposed pad) ( 1 : ' , 4 q f q f q f , 5 2 : 0 : 0 * 1 ' q f q f * 1 ' 7 / ( b 3 , 1 & |