AN1145 - Application Circuit based on AP3429 2A Step-Down DC-DC Converter

Reference Design using part AP3429 by Diodes Incorporated

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Manufacturer

Diodes Incorporated
  • Application Category
    Power Supplies
  • Product Type
    DC to DC Single Output Power Supplies

For End Products

  • Network Equipment
  • Point-of-Load Applications
  • Power Supplies
  • Set-Top Box
  • Storage System
  • Telecom Equipments
  • Video Card

Description

  • Application circuit for AP3429 is a 2A step-down DC-DC converter. At heavy load, the constant frequency PWM control performs excellent stability and transient response. No external compensation components are required. The AP3429 supports a range of input voltages from 2.7 to 5.5V, allowing the use of a single Li+/Li- polymer cell, multiple Alkaline/NiMH cell, and other standard power sources. The output voltage is adjustable from 0.6V to the input voltage. The AP3429 employs internal power switch and synchronous rectifier to minimize external part count and realize high efficiency

Key Features

  • Conversion Type
    DC to DC
  • Input Voltage
    2.7 to 5.5 V
  • Output Voltage
    1.8 V
  • Output Current
    2 A
  • Efficiency
    95 %
  • Topology
    Buck

Featured Parts (1)

Featured Parts
Part Number Manufacturer Type Description
AP3429KTTR-G1 Diodes Incorporated DC to DC Converter and Switching Regulator Chip Conv DC-DC 2.7V to 5.5V Synchronous Step Down Single-Out 0.6V to 5.5V 2A 5-Pin TSOT-25 T/R Buy

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