TPS5140 Datasheet - Texas Instruments

TPS5140 4-CHANNEL DC/DC CONTROLLER

The TPS5140 is a dc/dc controller that incorporates three synchronous-buck controllers and one nonsynchronous 12-V boost converter on one chip to power the voltage rails needed by notebook peripheral components. On-chip high-side and low-side synchronous rectifier drivers are integrated to drive les.

TPS5140 FOUR-CHANNEL DC/DC CONTROLLER FOR NOTEBOOK PC POWER SLVS305A DECEMBER 2000 REVISED JANUARY 2001 D Three Independent Step-Down DC/DC PAG PACKAGE Controllers and One 12-V Boost DC/DC (TOP VIEW) INV1 NC NC LH1 OUT1_u LL1 NC OUT1_d OUTGND1 TRIP1 VCC _SENSE12 TRIP2 OUTGND2 OUT2_d LL2 OUT2_u Converter D 4.5 V 28 V Input Voltage Range D Step-Down Controller Output Voltages Adjustable Down to 1.2 V D Synchronous-Buck Operation for High 64 63 62 61 60 59 .

TPS5140 Features

* dead-time control and very low quiescent current. Resistorless current protection and the fixed high-side driver voltage simplify the system design and reduce the external parts count. Please be aware that an important notice concerning availability, standard warranty, and use in critical applicati

TPS5140-etcTI.pdf