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AP3427M (NRND)

NRND = Not Recommended for New Design

Inactive Datasheet Archive

Datasheet

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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 R_DS(ON) Internal Switches: 200mΩ (V_IN=5V)
Adjustable Output Voltages from 0.6V to 0.9×V_IN
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

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)