TPS5633 - Texas Instruments

TPS5633 SYNCHRONOUS-BUCK HYSTERETIC REGULATOR CONTROLLER

PWP PACKAGE (TOP VIEW) IOUT AGND2 OCP VHYST VREFB VSENSE ANAGND SLOWST BIAS LODRV LOHIB DRVGND LOWDR DRV 1 2 3 4 5 6 7 8 9 10 11 12 13 14 NC − No internal connection 28 27 26 25 24 23 22 21 20 19 18 17 16 15 PWRGD NC NC NC NC NC INHIBIT IOUTLO LOSENSE HISENSE BOOTLO HIGHDR BOOT VCC The TPS5615 family of synchronous-buck regulator controllers provides .

Features

ith an accuracy of 1% over the full operating temperature range. A hysteretic controller with user-selectable hysteresis is used to dramatically reduce overshoot and undershoot caused by load transients. Propagation delay from the comparator inputs to the output drivers is less than 250 ns. Overcurrent shutdown and crossover protection for the output drivers combine to eliminate destructive faults in the output FETs. PWRGD monitors the output voltage and pulls the open-collector output low when the output drops below 93% of the nominal output voltage. An overvoltage circuit disables the output.