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Diodes Incorporated AP65454 | Demoboard AP65454SP-EVM

650kHz, 18V, 4A, COT, CCM Synchronous DC/DC Buck Converter in SO-8EP

Overview

TopologyBuck Converter
Input voltage4.5-18 V
Output 11.05 V / 4 A
IC revision1.0

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 TV and monitor.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.The AP65454 also features programmable soft-start, UVLO, OTP, OVP and OCP to protect the circuit.The AP65454 operates in continuous conduction mode (CCM) in light load conditions for better EMI performance. AP65353 and AP65355 are the options for light load efficiency enhancement.This IC is available in SO-8EP package.

Typical applications

  • Green Electronics
  • Set Top Boxes
  • Home Audio
  • Flat Screen TV Sets and Monitors
  • FPGA, DSP and ASIC Supplies
  • • Network Systems
  • Gaming Consoles
  • Distributed Power Systems
  • Consumer Electronics

Products

Order Code Data­sheet Downloads Product seriesL
(µH)
IR
(A)
LR
(µH)
ISAT
(A)
RDC
(mΩ)
fres
(MHz)
MaterialVersion Samples
744311150
STE ALT EAG CAD LTS PSP SPE IGS CADWE-HCI SMT Flat Wire High Current Inductor 1.5 11 1.12 14 6.6 72 Superflux SMT
Order Code Data­sheet
744311150
Samples
Order Code Data­sheet Downloads Product seriesL
(µH)
IR
(A)
LR
(µH)
ISAT
(A)
RDC
(mΩ)
fres
(MHz)
MaterialVersion Samples