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TPS40002 Datasheet Synchronous Buck Controller

Manufacturer: Texas Instruments

Download the TPS40002 datasheet PDF. This datasheet also includes the TPS40000 variant, as both parts are published together in a single manufacturer document.

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Note: The manufacturer provides a single datasheet file (TPS40000-etcTI.pdf) that lists specifications for multiple related part numbers.

General Description

The TPS4000x are controllers for low-voltage, non-isolated synchronous buck regulators.

These controllers drive an N-channel MOSFET for the primary buck switch, and an N-channel MOSFET for the synchronous rectifier switch, thereby achieving very high-efficiency power conversion.

In addition, the device controls the delays from main switch off to rectifier turn-on and from rectifier turn-off to main switch turn-on in such a way as to minimize diode losses (both conduction and recovery) in the synchronous rectifier with TI’s proprietary Predictive Gate Drivet technology.

Overview

TPS40000, TPS40001 TPS40002, TPS40003 TPS40004, TPS40005 SLUS507D − JANUARY 2002 − REVISED NOVEMBER 2005 LOWĆINPUT VOLTAGEĆMODE SYNCHRONOUS BUCK.

Key Features

  • D Operating Input Voltage 2.25 V to 5.5 V D Output Voltage as Low as 0.7 V D 1% Internal 0.7 V Reference D Predictive Gate Drivet N-Channel MOSFET Drivers for Higher Efficiency D Externally Adjustable Soft-Start and Overcurrent Limit D Source-Only Current or Source/Sink Current D Versions for Starting Into VOUT Pre-Bias D 10-Lead MSOP PowerPadt Package for Higher Performance D Thermal Shutdown D Internal Boostrap Diode D Fixed-Frequency, Voltage-Mode Control.
  • TPS40000/1/4 300-kHz.