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AX3701 - VFB=0.6V Synchronous Step-Down Converter

Description

AX3701 is a high efficiency monolithic synchronous buck regulator using a constant frequency, current mode architecture.

The device is available in an adjustable version.

Features

  • 2.5V to 7.5V Input Voltage Range Output Voltage from 0.6V to VIN High Efficiency: Up to 92% 1.4MHz Constant Frequency Operation 1.2A Output Current Quiescent Current: 200uA (input < 4.2V) No Schottky Diode Required 100% Duty Cycle in Dropout 0.6V Reference Allows Low Output Voltages Current Mode Operation for Excellent Line and Load Transient Response Current limit, Enable function Short Circuit Protect (SCP) ≤ 1µA Shutdown Current (T)SOT-23-5L, TDFN-6L (2.
  • 2) 1/14 Axelite Confidential Mater.

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Datasheet preview – AX3701

Datasheet Details

Part number AX3701
Manufacturer AXElite
File Size 1.25 MB
Description VFB=0.6V Synchronous Step-Down Converter
Datasheet download datasheet AX3701 Datasheet
Additional preview pages of the AX3701 datasheet.

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Full PDF Text Transcription

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AX3701 1.4MHz, 1.2A, VFB=0.6V Synchronous Step-Down Converter  GENERAL DESCRIPTION AX3701 is a high efficiency monolithic synchronous buck regulator using a constant frequency, current mode architecture. The device is available in an adjustable version. Supply current with no load is about 200uA and drops to <1uA in shutdown. The 2.5V to 7.5V input voltage range makes AX3701 ideally suited for single Li-Ion, two to four AA battery-powered applications. 100% duty cycle provides low dropout operation, extending battery life in portable systems. Pulse skipping mode operation provides very low output ripple voltage for noise sensitive applications. Switching frequency is internally set at 1.4MHz, allowing the use of small surface mount inductors and capacitors.
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