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TPS40055 Datasheet Wide-Input Synchronous Buck Controller

Manufacturer: Texas Instruments

Download the TPS40055 datasheet PDF. This datasheet also includes the TPS40054 variant, as both parts are published together in a single manufacturer document.

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Note: The manufacturer provides a single datasheet file (TPS40054-etcTI.pdf) that lists specifications for multiple related part numbers.

General Description

The TPS4005x is a family of high-voltage, wideinput (8 V to 40 V), synchronous, step-down controllers.

The TPS4005x family offers design flexibility with a variety of user-programmable functions, including soft start, UVLO, operating frequency, voltage feedforward, high-side current limit, and loop compensation.

The TPS4005x uses voltage feedforward control techniques to provide good line regulation over the wide (4:1) input voltage range, and fast response to input line transients.

Overview

TPS40054, TPS40055, TPS40057 SLUS593J – DECEMBER 2003 – REVISED JUNE 2022 TPS4005x Wide-Input Synchronous Buck Controller.

Key Features

  • New products available.
  • LM5145 75-V synchronous buck controller with wide input voltage and duty cycle ranges.
  • LM5146 100-V synchronous buck DC/DC controller with wide duty-cycle range.
  • Operating input voltage 8 V to 40 V.
  • Input voltage feedforward compensation.
  • < 1% internal 0.7-V reference.
  • Programmable fixed-frequency up to 1-MHz voltage mode controller.
  • Internal gate-drive outputs for high-side and synchronous N-channel.

More Datasheets from Texas Instruments

Part Number Description
TPS40055-EP WIDE-INPUT SYNCHRONOUS BUCK CONTROLLER
TPS40050 WIDE-INPUT SYNCHRONOUS BUCK CONTROLLER
TPS40050-Q1 WIDE-INPUT SYNCHRONOUS BUCK CONTROLLER
TPS40051 WIDE-INPUT SYNCHRONOUS BUCK CONTROLLER
TPS40051-Q1 WIDE-INPUT SYNCHRONOUS BUCK CONTROLLER
TPS40052 WIDE-INPUT SYNCHRONOUS BUCK CONTROLLER
TPS40053 WIDE-INPUT SYNCHRONOUS BUCK CONTROLLER
TPS40053-Q1 WIDE-INPUT SYNCHRONOUS BUCK CONTROLLER
TPS40054 Wide-Input Synchronous Buck Controller
TPS40056 Wide-Input Synchronous Tracking Buck Controller