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AP65552 Datasheet 650kHz ADAPTIVE CCM/COT STEP-DOWN CONVERTER

Manufacturer: Diodes Incorporated

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General Description

The AP65552 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.

Overview

AP65552 5A, 18V, 650kHz ADAPTIVE CCM/COT STEP-DOWN CONVERTER.

Key Features

  • programmable soft-start, UVLO, OTP and OCP to protect the circuit. This IC is available in SO-8EP package. SS 4 SO-8EP 5 GND Features.
  • Fixed-Frequency Emulated Constant On-Time Control.
  • Good Stability Independent of the Output Capacitor ESR.
  • Fast Load Transient Response.
  • Synchronous Rectification: 65mΩ Internal High-Side Switch and 36mΩ Internal Low-Side Switch.
  • Wide Input Voltage Range: 4.5V to 18V.
  • Output Voltage Range: 0.76V to 6V.
  • 5A Continuous Output C.

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