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APS2406 - Synchronous Step-Down Converter

Datasheet Summary

Description

The APS2406 is a high efficiency monolithic synchronous buck regulator using a constant frequency, current mode architecture.

The device is available in an adjustable version and fixed output voltages, such as 1.2V, 1.5V, 1.8V, etc.

Features

  • High Efficiency: Up to 96%.
  • 1.5MHz Constant Switching Frequency.
  • 800mA Output Current at VIN=3V.
  • Integrated Main switch and synchronous rectifier. No Schottky Diode Required.
  • 2.5V to 6.5V Input Voltage Range.
  • Output Voltage as Low as 0.6V.
  • 100% Duty Cycle in Dropout.
  • Quiescent Current: 300µA(input < 4.2V).
  • Slope Compensated Current Mode Control for Excellent Line and Load Transient Response.
  • Short Circuit Protection.

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Datasheet preview – APS2406

Datasheet Details

Part number APS2406
Manufacturer Chipown
File Size 429.57 KB
Description Synchronous Step-Down Converter
Datasheet download datasheet APS2406 Datasheet
Additional preview pages of the APS2406 datasheet.

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Full PDF Text Transcription

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APS2406 Chipown 1.5MHz, 800mA Synchronous Step-Down Converter Description The APS2406 is a high efficiency monolithic synchronous buck regulator using a constant frequency, current mode architecture. The device is available in an adjustable version and fixed output voltages, such as 1.2V, 1.5V, 1.8V, etc. Supply current with no load is 300uA and drops to <1uA in shutdown. The 2.5V to 6.5V input voltage range makes the APS2406 ideally suited for single Li-Ion, two to four AA battery-powered applications. 100% duty cycle provides low dropout operation, extending battery life in portable systems. PWM pulse skipping mode operation provides very low output ripple voltage for noise sensitive applications. Switching frequency is internally set at 1.
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