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YB1680 - 600mA Synchronous Step-Down Converter

Datasheet Summary

Description

The YB1680 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 94% 1.5MHz Constant Switching Frequency 600mA Output Current at VIN=3V 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 : 300μA Slope Compensated Current Mode Control for Excellent Line and Load.

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Datasheet Details

Part number YB1680
Manufacturer YOBON TECHNOLOGIES
File Size 858.56 KB
Description 600mA Synchronous Step-Down Converter
Datasheet download datasheet YB1680 Datasheet
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Full PDF Text Transcription

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YB1680 1.5MHz, 600mA Synchronous Step-Down Converter Description The YB1680 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 YB1680 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 YB1680 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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