Diodes Incorporated — Analog and discrete power solutions
U DFN3030 10

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AP3427M (NRND)

NRND = Not Recommended for New Design

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Description

The AP3427M is a high efficiency step-down dual channel DC-DC voltage converter.

The AP3427M has integrated Soft Start (SS), Under Voltage Lock Out (UVLO), Thermal Shutdown Detection (TSD) and Short Circuit Protection are designed to provide reliable product applications.

Feature(s)

  • High Efficiency Buck Power Converter
  • Output Current: 1.0A/1.0A
  • Low RDS(ON) Internal Switches: 200mΩ (VIN=5V)
  • Adjustable Output Voltages from 0.6V to 0.9×VIN
  • Wide Operating Voltage Range: 2.5V to 5.5V
  • Built-In Power Switches for Synchronous Rectification with High Efficiency
  • Feedback Voltage: 600mV
  • 1.5MHz Constant Frequency Operation
  • Thermal Shutdown Protection
  • Low Drop-Out Operation at 100% Duty Cycle
  • Input Over Voltage Protection
  • No Schottky Diode Required

Application(s)

  • Post DC-DC Voltage Regulation
  • PDA and Notebook Computer

Product Specifications

Product Parameters

Efficiency (%) 93
Frequency Typ (Hz) 1500
HS RDS(ON) (mΩ) 200
LS RDS(ON) (mΩ) 200
MaximumInput Voltage (V) 5.5
MinimumInput Voltage (V) 2.5
Output Current (mA) 1
Output Voltage (V) 0.6 to 0.9xVIN
Quiescent Current Typ (mA) 0.22
Shutdown Current Typ (µA) 0.1
Type Buck

Related Content

Packages

Technical Documents

Recommended Soldering Techniques

TN1.pdf

Product Change Notices (PCNs)

A PCN may only apply to specific orderable part numbers in this datasheet. Please refer to the corresponding PCN to see the exact orderable part number(s) affected.

PCN # Issue Date Implementation Date Subject
PCN-2505 2021-01-26 2021-07-26 Device End of Life (EOL)