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AP65453 - 650kHz ADAPTIVE COT STEP-DOWN CONVERTER

Datasheet Summary

Description

The AP65453 is an adaptive, constant on-time mode synchronous buck converter providing high efficiency, excellent transient response and high DC output accuracy for low-voltage regulation in digital TVs and monitors.

Features

  • programmable soft-start, UVLO, OTP and OCP to protect the circuit. This IC is available in SO-8EP package. Features.
  • Fixed Frequency Emulated Constant On-time Control.
  • Good Stability Independent of the Output Capacitor ESR.
  • Fast Load Transient Response.
  • Synchronous Rectification: 90mΩ Internal High-side Switch and 57mΩ Internal Low-side Switch.
  • Wide Input Voltage Range: 4.5V to 18V.
  • Output Voltage Range: 0.76V to 6V.
  • 4A Continuous Output Current.
  • 650kHz S.

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Datasheet Details

Part number AP65453
Manufacturer DIODES
File Size 1.04 MB
Description 650kHz ADAPTIVE COT STEP-DOWN CONVERTER
Datasheet download datasheet AP65453 Datasheet
Additional preview pages of the AP65453 datasheet.

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Full PDF Text Transcription

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ADVANCED INFORMATION AP65453 4A, 18V, 650kHz ADAPTIVE COT STEP-DOWN CONVERTER Description The AP65453 is an adaptive, constant on-time mode synchronous buck converter providing high efficiency, excellent transient response and high DC output accuracy for low-voltage regulation in digital TVs and monitors. The constant-on-time control scheme handles wide input/output voltage ratios and provides low external component count. The internal proprietary circuit enables the device to adopt both low equivalent series resistance (ESR) output capacitors, such as SP-CAP or POSCAP and ultra-low ESR ceramic capacitors.
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