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LMZ14203 Datasheet, PDF (1/18 Pages) National Semiconductor (TI) – 3A SIMPLE SWITCHER® Power Module with 42V Maximum | |||
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LMZ14203
April 12, 2010
3A SIMPLE SWITCHER® Power Module with 42V Maximum
Input Voltage
Easy to use 7 pin package
Performance Benefits
â Operates at high ambient temperature with no thermal
derating
â High efficiency reduces system heat generation
â Low radiated emissions (EMI) complies with EN55022
class B standard
â Passes 10V/m radiated immunity EMI test standard
EN61000 4-3
TO-PMOD 7 Pin Package
30107086
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
â 18W maximum total output power
â Up to 3A output current
â Input voltage range 6V to 42V
â Output voltage range 0.8V to 6V
â Efficiency up to 90%
Key Features
â Integrated shielded inductor
â Simple PCB layout
â Flexible startup sequencing using external soft-start and
precision enable
â Protection against inrush currents and faults such as input
UVLO and output short circuit
â â 40°C to 125°C junction temperature range
â Single exposed pad and standard pinout for easy
mounting and manufacturing
â Fast transient response for powering FPGAs and ASICs
â Low output voltage ripple
â Pin-to-pin compatible family:
LMZ14203/2/1 (42V max 3A, 2A, 1A)
LMZ12003/2/1 (20V max 3A, 2A, 1A)
â Fully enabled for Webench® Power Designer
Applications
â Point of load conversions from 12V and 24V input rail
â Time critical projects
â Space constrained / high thermal requirement applications
â Negative output voltage applications (See AN-2027)
30107036
Thermal derating curve
VIN = 24V, VOUT = 5.0V,
30107037
Radiated Emissions (EN 55022 Class B)
from Evaluation Board
© 2010 National Semiconductor Corporation 301070
30107038
www.national.com
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