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TPS40042 - SYNCHRONOUS BUCK DC-TO-DC CONTROLLER

Datasheet Summary

Description

The TPS40042 DC/DC controller is designed to operate with an input source between a 3.0 V and 5.5 V.

To reduce the number of external components, a number of operating parameters are fixed internally.

The operating frequency for example, is internally set at 600 kHz.

Features

  • 1.
  • 2 3.0-V to 5.5-V Input.
  • External Reference required: 0.5 V to 1.5 V.
  • Output Voltage from REFIN to 90% of VIN.
  • High-Side Drive for N-Channel FET.
  • Supports Pre-Biased Outputs.
  • Adaptive Anti-Cross Conduction Gate Drive.
  • Fixed switching frequency (600 kHz) Voltage Mode Control.
  • Three Selectable Short Circuit Protection Levels.
  • Hiccup Restart from Faults.
  • Active Low Enable.
  • Thermal Shutdown Protection.

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Datasheet preview – TPS40042

Datasheet Details

Part number TPS40042
Manufacturer Texas Instruments
File Size 1.64 MB
Description SYNCHRONOUS BUCK DC-TO-DC CONTROLLER
Datasheet download datasheet TPS40042 Datasheet
Additional preview pages of the TPS40042 datasheet.

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Full PDF Text Transcription

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TPS40042 www.ti.com SLUS777 – NOVEMBER 2007 LOW PIN COUNT, LOW VIN (3.0 V TO 5.5 V) SYNCHRONOUS BUCK DC-TO-DC CONTROLLER WITH EXTERNAL REFERENCE INPUT FEATURES 1 •2 3.0-V to 5.5-V Input • External Reference required: 0.5 V to 1.
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