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TPS51427 - SYNCHRONOUS STEP-DOWN CONTROLLER

Datasheet Summary

Description

The TPS51427 is a dual synchronous step-down controller designed for notebook and mobile communications applications.

This device is part of a low-cost suite of notebook power bus regulators that enables system designs with low external component counts.

Features

  • 1.
  • 23 Fixed-Frequency Emulated On-Time Control; Frequency Selectable from Three Options.
  • D-CAP™ Mode Enables Fast Transient Response Less than 100 ns.
  • Advanced Ramp Compensation Allows Low Output Ripple with Minimal Jitter.
  • Selectable PWM-Only/OOA™/Auto-Skip Modes.
  • Wide Input Voltage Range: 5.5 V to 28 V.
  • Dual Fixed or Adjustable SMPS:.
  • 0.7 V to 5.9 V (Channel1).
  • 0.5 V to 2.5 V (Channel2).
  • Fixed 3.3-V/5-V, or Adjusta.

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Datasheet Details

Part number TPS51427
Manufacturer Texas Instruments
File Size 2.97 MB
Description SYNCHRONOUS STEP-DOWN CONTROLLER
Datasheet download datasheet TPS51427 Datasheet
Additional preview pages of the TPS51427 datasheet.

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Full PDF Text Transcription

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TPS51427 www.ti.com................................................................................................................................................ SLUS819B – APRIL 2008 – REVISED SEPTEMBER 2008 DUAL D-CAP™ SYNCHRONOUS STEP-DOWN CONTROLLER FOR NOTEBOOK POWER RAILS FEATURES 1 •23 Fixed-Frequency Emulated On-Time Control; Frequency Selectable from Three Options • D-CAP™ Mode Enables Fast Transient Response Less than 100 ns • Advanced Ramp Compensation Allows Low Output Ripple with Minimal Jitter • Selectable PWM-Only/OOA™/Auto-Skip Modes • Wide Input Voltage Range: 5.5 V to 28 V • Dual Fixed or Adjustable SMPS: – 0.7 V to 5.9 V (Channel1) – 0.5 V to 2.5 V (Channel2) • Fixed 3.3-V/5-V, or Adjustable Output 0.7-V to 4.5-V LDO; Capable of Sourcing 100 mA • Fixed 3.
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