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GS5571 - 600mA Synchronous Step-Down Converter

Description

GS5571 is a 1.5Mhz constant frequency, slope compensated current mode PWM step-down converter.

The device integrates a main switch and a synchronous rectifier for high efficiency without an external Schottky diode.

Features

  • High Efficiency: Up to 96%. 1.5Mhz Constant Switching Frequency. 600mA Output Current at VIN=3.0V. Integrated Main switch and synchronous rectifier. No Schottky Diode Required. 2.5V to 5.5V Input Voltage Range. Output Voltage as Low as 0.6V. 100% Duty Cycle in Dropout. Low Quiescent Current: 30µA.

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Datasheet Details

Part number GS5571
Manufacturer GlobalTech
File Size 509.09 KB
Description 600mA Synchronous Step-Down Converter
Datasheet download datasheet GS5571 Datasheet

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Full PDF Text Transcription

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1.5 MHz, 600mA Synchronous Step-Down Converter With Low Quiescent Current Product Description GS5571 is a 1.5Mhz constant frequency, slope compensated current mode PWM step-down converter. The device integrates a main switch and a synchronous rectifier for high efficiency without an external Schottky diode. It is ideal for powering portable equipment that runs from a single cell lithium-Ion (Li+) battery. The GS5571 can supply 600mA of load current from a 2.5V to 5.5V input voltage. The output voltage can be regulated as low as 0.6V. The GS5571 can also run at 100% duty cycle for low dropout operation, extending battery life in portable system. Idle mode operation at light loads provides very low output ripple voltage for noise sensitive applications.
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