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AX5301

AXElite
Part Number AX5301
Manufacturer AXElite
Description PWM Step-up Controller
Published Aug 25, 2014
Detailed Description AX5301 (Preliminary) PWM Step-up Controller ™ GENERAL DESCRIPTION The AX5301 is high efficient PWM step-up controller. ...
Datasheet PDF File AX5301 PDF File

AX5301
AX5301

Overview
AX5301 (Preliminary) PWM Step-up Controller ™ GENERAL DESCRIPTION The AX5301 is high efficient PWM step-up controller.
Designed to drive an external N-channel MOSFET, Output voltage is programmable with 1.
0V of standard voltage supply internal, and using externally connected components, output voltage (FB) can be set up at will.
The AX5301 can be operated at switching frequencies of 500kHz allowing for easy filtering and low noise, the size of the external components can be reduced.
This controller also contains an error amplifier circuit as well as a soft-start circuit that prevents inrush-current at startup.
An enable function and thermal shutdown functions are built inside.
™ FEATURES Input voltage: 3.
0V to 24V Output voltage: Define by N-channel MOS.
Duty ratio: 0% to 80% PWM control Oscillation frequency: 500KHz (±20%) .
Enable function Soft-Start function Thermal Shutdown function External SW N-channel MOS.
MSOP-8L & SOP-8L Pb-Free Package.
1/10 Axelite Confidential Materials, do not copy or distribute without written consent.
Rev.
0.
1 Jun.
30, 2006 AX5301 (Preliminary) ™ Block Diagram VCC Phase Compensation + Vref with CE PVCC FB + Buffer Driver GATE PWM Controller Thermal Shutdown Oscillator PGND EN GND ™ PIN ASSIGNMENT These packages of AX3301are MSOP-8L & SOP-8L; the pin assignment is given by: ( Top View ) EN Vcc PVcc FB 1 2 AX5301 3 4 MSOP - 8L & SOP - 8L 8 GND 7 PGND 6 NC 5 GATE Description Shutdown Control Input.
H：normal operation(Step-down) EN L：Shutdown mode FB Feedback pin VCC Signal VCC supply pin PVCC Power VCC supply pin Gate drive for external N-channel GATE MOSFET.
PGND Power ground pin GND Signal ground pin Name ™ ORDER/MARKING INFORMATION Order Information Top Marking Logo AX5301 X X Package Type Packing S: SOP-8L U:MSOP-8L Blank : Tube A : Taping AX 5301 XXXXX Part number ID code: internal WW: 01~52 Year : 06 = 2006 2/10 Axelite Confidential Materials, do not copy or distribute without written consent.
Rev.
0.
1 Dec.
21, 200...


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