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PAM2422AECADJR

Description
3A,4.5A,5.5A PWM Step-Up DC/DC Converter
File Size204KB,9 Pages
ManufacturerPower Analog Microelectronics Inc
Websitehttp://www.poweranalog.com/
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PAM2422AECADJR Overview

3A,4.5A,5.5A PWM Step-Up DC/DC Converter

PAM2421,PAM2422,PAM2423
3A,4.5A,5.5A PWM Step-Up DC/DC Converter
Features
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Greater than 90% Efficiency
Adjustable Output Voltage Up to 24V
Internal 24V Power MOSFET
Peak Current 3A,4.5A,5.5A
520kHz Frequency
Built-in Over-Voltage Protection (OVP)
Open Protection
Programmable Soft-Start Function
Thermal Shutdowns
Under-Voltage-Lockout
Over-Current Protection
SOP-8(EP) Package
General Description
The PAM242x devices are high-performance,fixed
frequency, current-mode PWM step-up DC/DC
converter that incorporate internal power
MOSFETs. The PAM242x includes an integrated
power MOSFET that supports peak currents of up
to 3A/4.5A/5.5A.
The PAM2 42x utilizes simple ex ternal loop
compensation allowing optimization between
component size, cost, and AC performance across
a wide range of applications. Additional functions
include an externally programmable soft-start
function for easy inrush current control, internal
over-voltage pr otection (OVP) ,c ycle-by- cyc le
current limit protection, under voltage lock-out and
thermal shutdown.
The PAM242x is available in the small SOP-8(EP)
package.
Applications
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TFT LCD Monitors
Battery-Powered Equipment
Set-Top Boxes
DSL and Cable Modems and Routers
Typical Application
SS34
VOUT
12V/800mA
SW
SS
PAM242x
EN
COMP
R3
51k
C7
2.2nF
AGND
C6
47pF
FB
R2
10k
C8
10nF
R1
85k
C4
10uF
C5
470uF
L1
VIN
3.6V~5.5V
C1
470μF
C2
10μF
PGND
6.8
μ
H
VIN
C3
1μF
Power Analog Microelectronics
,
Inc
www.poweranalog.com
02/2012 Rev1.1
1
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