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TPS65055 - 2.25-MHz Dual Step-Down Converter

Description

The TPS65055 device is an integrated Power Management IC for applications powered by one LiIon or Li-Polymer cell, which require multiple power rails.

Features

  • 1 Up to 95% Efficiency.
  • Output Current for DCDC Converters 2 × 0.6 A.
  • Two Selectable Fixed Output Voltages 1 V and 1.2 V for DCDC2.
  • VIN Range for DCDC Converters From 2.5 V to 6 V.
  • 2.25-MHz Fixed-Frequency Operation.
  • Power Save Mode at Light Load Current.
  • 180° Out-of-Phase Operation.
  • Output Voltage Accuracy in PWM Mode ±1%.
  • Low Ripple PFM Mode.
  • Total Typical 32-μA Quiescent Current for Both DC-DC Converters.

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Full PDF Text Transcription

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Product Folder Sample & Buy Technical Documents Tools & Software Support & Community TPS65055 SLVS844A – SEPTEMBER 2008 – REVISED JUNE 2015 TPS65055 2.25-MHz Dual Step-Down Converter With 4 Low-Input Voltage LDOs 1 Features •1 Up to 95% Efficiency • Output Current for DCDC Converters 2 × 0.6 A • Two Selectable Fixed Output Voltages 1 V and 1.2 V for DCDC2 • VIN Range for DCDC Converters From 2.5 V to 6 V • 2.25-MHz Fixed-Frequency Operation • Power Save Mode at Light Load Current • 180° Out-of-Phase Operation • Output Voltage Accuracy in PWM Mode ±1% • Low Ripple PFM Mode • Total Typical 32-μA Quiescent Current for Both DC-DC Converters • 100% Duty Cycle for Lowest Dropout • 2 General-Purpose 400 mA High PSRR LDOs • 2 General-Purpose 200 mA High PSRR LDOs • VIN Range for LDOs From 1.
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