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AX3702

AXElite
Part Number AX3702
Manufacturer AXElite
Description VFB=0.6V Synchronous Step-Down Converter
Published Jul 17, 2014
Detailed Description AX3702 1.2MHz, 2A, VFB=0.6V Synchronous Step-Down Converter  GENERAL DESCRIPTION AX3702 is a high efficiency monolithi...
Datasheet PDF File AX3702 PDF File

AX3702
AX3702

Overview
AX3702 1.
2MHz, 2A, VFB=0.
6V Synchronous Step-Down Converter  GENERAL DESCRIPTION AX3702 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 6V input voltage range makes AX3702 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.
PWM pulse skipping mode operation provides very low output ripple voltage for noise sensitive applications.
Switching frequency is internally set at 1.
2MHz, allowing the use of small surface mount inductors and capacitors.
The internal synchronous switch increases efficiency and decreases need of an external Schottky diode.
Low output voltages are easily supported with the 0.
6V feedback reference voltage.
AX3702 is available in small SOT-23-5L, SOT-23-6L, TDFN-10L (3*3), and SOP-8L-EP packages.
 FEATURES 2.
5V to 6V Input Voltage Range Output Voltage from 0.
6V to VIN High Efficiency: Up to 95% 1.
2MHz Constant Frequency Operation 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 SOT-23-5L, SOT-23-6L, TDFN-10L (3*3), and SOP-8L-EP Pb-Free packages 1/16 Axelite Confidential Materials, do not copy or distribute without written consent.
Rev1.
1 Apr.
28, 2014 AX3702  BLOCK DIAGRAM 2/16 Axelite Confidential Materials, do not copy or distribute without written consent.
Rev1.
1 Apr.
28, 2014 AX3702  PIN ASSIGNMENT The packages of AX3702 are SOT-23-5L, SOT-23-6L, TDFN-10L (3*3), and SOP-8L-EP the pin assignment is given by: ( Top View ) EN PVIN NC NC FB 1 2 3 4 5 10 PGND AX3702 (...


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