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AX3504A

AXElite
Part Number AX3504A
Manufacturer AXElite
Description 2A Synchronous Step-Down Converter
Published Aug 25, 2014
Detailed Description AX3504/A 1.2MHz, 2A Synchronous Step-Down Converter ™ GENERAL DESCRIPTION The AX3504/A is a 1.2MHz constant frequency cu...
Datasheet PDF File AX3504A PDF File

AX3504A
AX3504A

Overview
AX3504/A 1.
2MHz, 2A Synchronous Step-Down Converter ™ GENERAL DESCRIPTION The AX3504/A is a 1.
2MHz constant frequency current mode PWM step-down converter.
It is ideal for portable equipment requiring very high current up to 2A from single-cell Lithium-ion batteries while still achieving over 90% efficiency during peak load conditions.
The AX3504/A also can run at 100% duty cycle for low dropout operation, extending battery life in portable systems while light load operation provides very low output ripple for noise sensitive applications.
The AX3504/A can supply up to 2A output load current from a 2.
5V to 5.
5V input voltage and the output voltage can be regulated as low as 0.
6V.
The high switching frequency minimizes the size of external components while keeping switching losses low.
The internal slope compensation setting allows the device to operate with smaller inductor values to optimize size and provide efficient operation.
The AX3504/A is available in adjustable (0.
6V to VIN) output voltage.
The device is available in SOP8 Pb-free and DFN-10L packages.
™ FEATURES 2.
5V to 5.
5V Input Voltage Range Output Voltages from 0.
6V to VIN High Efficiency: Up to 95% 1.
2MHz Constant Frequency Operation 2A Output Current No Schottky Diode Required Low RDS(ON) Internal Switches: 0.
15Ω Current Mode Operation for Excellent Line and Load Transient Response Current limit, Enable function Short Circuit Protect (SCP) Build-in Soft Start function ≤ 1µA Shutdown Current SOP8 Pb-Free and DFN-10L packages 1/10 AXElite Confidential Materials, do not copy or distribute without written consent .
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0.
4 May.
16, 2008 AX3504/A ™ Block Diagram ™ PIN ASSIGNMENT The packages of AX3504/A are SOP-8L and DFN-10L; the pin assignment is given by: ( Top View ) EN PVIN SVIN SGND 1 2 AX3504 3 4 SOP–8L ( Top View ) SVIN FB SGND EN 1 2 3 4 SOP–8L AX3504A 8 7 6 5 PVIN LX PGND SGND 6 5 SGND FB 8 7 PGND LX EN 1 PVIN 2 SVIN 3 SGND 4 FB 5 D...


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