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TPS65055

Texas Instruments
Part Number TPS65055
Manufacturer Texas Instruments
Description 2.25-MHz Dual Step-Down Converter
Published Sep 29, 2019
Detailed Description Product Folder Sample & Buy Technical Documents Tools & Software Support & Community TPS65055 SLVS844A – SEPTEMBER ...
Datasheet PDF File TPS65055 PDF File

TPS65055
TPS65055

Overview
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.
5 V to 6.
5 V • Digital Voltage Selection for the LDOs • I2C Compatible Interface • Available in a 4 mm × 4 mm 32-Pin QFN Package 2 Applications • Cell Phones, Smart Phones • WLAN • PDAs, Pocket PCs • OMAP™ and Low Power DSP Supplies • XScale • Portable Media Players • Digital Cameras 3 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.
The TPS65055 provides two highly efficient, 2.
25 MHz step-down converters targeted at providing the core voltage and I/O voltage in a processor-based system.
Both step-down converters enter a low power mode at light load for maximum efficiency across the widest possible range of load currents.
For low noise applications the device can be forced into fixed frequency PWM mode using the I2C compatible interface.
In shutdown mode, current consumption is reduced to less than 1 μA.
The device allows the use of small inductors and capacitors to achieve a small solution size.
The TPS65055 provides an output current of up to 0.
6 A on each DC-DC converter.
The TPS65055 also integrates two 400-mA LDO and two 200-mA LDO voltage regulators, which can b...


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