Datasheet4U Logo Datasheet4U.com

AP65454 - 650kHz ADAPTIVE COT STEP-DOWN CONVERTER

General Description

The AP65454 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.

Key Features

  • programmable soft-start, UVLO, OTP and OCP to protect the circuit. This IC is available in SO-8EP package. Pin Assignments ( Top View ) EN 1 FB 2 VREG5 3 SS 4 8 7 6 5 SO-8EP VIN BS SW GND AP65454 operates in continuous conduction mode (CCM) in light-load conditions for better EMI performance. AP65453 and AP65455 are the options for light-load efficiency enhancement. Features.
  • Fixed Frequency Emulated Constant On-Time Control.
  • Good Stability Independent of the Output Capacitor E.

📥 Download Datasheet

Full PDF Text Transcription for AP65454 (Reference)

Note: Below is a high-fidelity text extraction (approx. 800 characters) for AP65454. For precise diagrams, and layout, please refer to the original PDF.

NOT RECOMMENDED FOR NEW DESIGN USE AP65450 AP65454 4A, 18V, 650kHz ADAPTIVE COT STEP-DOWN CONVERTER Description The AP65454 is an adaptive, constant, on-time mode synchro...

View more extracted text
Description The AP65454 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 as well as ultra-low ESR ceramic capacitors. The AP65454 also features programmable soft-start, UVLO, OTP and OCP to protect the ci