LMZ14202 Datasheet, PDF (1/18 Pages) National Semiconductor (TI) – 2A SIMPLE SWITCHER® Power Module with 42V Maximum Input Voltage

LMZ14202
April 12, 2010
2A 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
■ ^{Low external component count}
TO-PMOD 7 Pin Package
30114586
10.16 x 13.77 x 4.57 mm (0.4 x 0.542 x 0.18 in)
θ_JA = 20°C/W, θ_JC = 1.9°C/W
RoHS Compliant
System Performance
Efficiency V_IN = 24V V_OUT = 5.0V
Electrical Specifications
■ ^{12W maximum total output power}
■ ^{Up to 2A 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
■ ^{Protection against inrush currents and faults such as input}
UVLO and output short circuit
■ ^{– 40°C to 125°C junction temperature range}
■ ^{Single exposed pad and standard pinout for easy}
mounting and manufacturing
■ ^{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}
Applications
■ ^{Point of load conversions from 12V and 24V input rail}
■ ^{Time critical projects}
■ ^{Space constrained / high thermal requirement applications}
■ ^{Negative output voltage applications (See AN-2027)}
30114536
Thermal derating curve
V_IN = 24V, V_OUT = 5.0V,
30114537
Radiated Emissions (EN 55022 Class B)
from Evaluation Board
© 2010 National Semiconductor Corporation 301145
30114539
www.national.com