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LMZ14203

National Semiconductor
Part Number LMZ14203
Manufacturer National Semiconductor
Description Power Module
Published Feb 8, 2010
Detailed Description LMZ14203 3A SIMPLE SWITCHER® Power Module with 42V Maximum Input Voltage February 1, 2010 LMZ14203 3A SIMPLE SWITCHER®...
Datasheet PDF File LMZ14203 PDF File

LMZ14203
LMZ14203

Overview
LMZ14203 3A SIMPLE SWITCHER® Power Module with 42V Maximum Input Voltage February 1, 2010 LMZ14203 3A SIMPLE SWITCHER® Power Module with 42V Maximum Input Voltage Easy to use 7 pin package Performance Benefits ■ Operates at high ambient temperature with no thermal derating ■ High efficiency reduces system heat generation ■ Low radiated emissions (EMI) complies with EN55022 class B standard EN61000 4-3 ■ Passes 10V/m radiated immunity EMI test standard 30107086 TO-PMOD 7 Pin Package 10.
16 x 13.
77 x 4.
57 mm (0.
4 x 0.
542 x 0.
18 in) θJA = 20°C/W, θJC = 1.
9°C/W RoHS Compliant System Performance Efficiency VIN = 24V VOUT = 5.
0V Electrical Specifications ■ ■ ■ ■ ■ 18W maximum total output power Up to 3A output current Input voltage range 6V to 42V Output voltage range 0.
8V to 6V Efficiency up to 90% Key Features ■ Integrated shielded inductor ■ Simple PCB layout ■ Flexible startup sequencing using external soft-start and precision enable 30107036 Thermal derating curve VIN = 24V, VOUT = 5.
0V, ■ Protection against inrush currents and faults such as input UVLO and output short circuit ■ – 40°C to 125°C junction temperature range www.
DataSheet4U.
com mounting and manufacturing ■ Single exposed pad and standard pinout for easy ■ Fast transient response for powering FPGAs and ASICs ■ Low output voltage ripple ■ Pin-to-pin compatible family: LMZ14203/2/1 (42V max 3A, 2A, 1A) LMZ12003/2/1 (20V max 3A, 2A, 1A) ■ Fully enabled for Webench® Power Designer 30107037 Applications ■ ■ ■ ■ Point of load conversions from 12V and 24V input rail Time critical projects Space constrained / high thermal requirement applications Negative output voltage applications Radiated Emissions (EN 55022 Class B) from Evaluation Board 30107038 © 2010 National Semiconductor Corporation 301070 www.
national.
com LMZ14203 Simplified Application Schematic 30107001 Connection Diagram 30107002 Top View 7-Lead TO-PMOD Ordering Information Order Number LMZ14203TZ-ADJ www.
DataSheet4U.
com LMZ...


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