LMZ12010 Datasheet, PDF (1/22 Pages) National Semiconductor (TI) – 10A SIMPLE SWITCHER Power Module with 20V Maximum Input Voltage

LMZ12010
April 8, 2011
10A SIMPLE SWITCHER® Power Module with 20V
Maximum Input Voltage
Easy to use 11 pin package
Performance Benefits
■ ^{High efficiency reduces system heat generation}
■ ^{Low radiated emissions (EMI) complies with EN55022}
(Note 2)
■ ^{Only 7 external components}
■ ^{Low output voltage ripple}
■ ^{No external heat sink required}
TO-PMOD 11 Pin Package
30117901
15 x 17.79 x 5.9 mm (0.59 x 0.7 x 0.232 in)
θ_JA = 9.9 °C/W, θ_JC = 1.0 °C/W (Note 1)
RoHS Compliant
Electrical Specifications
■ ^{50W maximum total output power}
■ ^{Up to 10A output current}
■ ^{Input voltage range 6V to 20V}
■ ^{Output voltage range 0.8V to 6V}
■ ^{Efficiency up to 92%}
Key Features
■ ^{Integrated shielded inductor}
■ ^{Simple PCB layout}
■ ^{Fixed switching frequency (350 kHz)}
■ ^{Flexible startup sequencing using external soft-start,}
tracking 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
■ ^{Fully enabled for Webench® Power Designer}
■ ^{Pin compatible with LMZ22010/08/06, LMZ12008/06,}
LMZ23610/08/06, and LMZ13610/08/06
Applications
■ ^{Point of load conversions from 12V input rail}
■ ^{Time critical projects}
■ ^{Space constrained / high thermal requirement applications}
■ ^{Negative output voltage applications See AN-2027}
System Performance
Efficiency V_IN = 12V, V_OUT = 3.3V
100
90
80
70
60
50
12Vin
40
0 1 2 3 4 5 6 7 8 9 10
OUTPUT CURRENT (A)
30117902
Thermal derating curve
V_IN = 12V, V_OUT = 3.3V
12
10
8
6
4
2
θJA = 9.9 °C/W
0
20 30 40 50 60 70 80 90 100 110 120
AMBIENT TEMPERATURE (°C)
30117908
Radiated EMI (EN 55022)
V_IN = 12V, V_OUT = 5V, I_OUT = 10A
50
45
40
35
30
25
20
15
10
Horizontal Peak
Vertical Peak
5
Class B Limit
0
Class A Limit
0 100 200 300 400 500 600 700 800 9001000
FREQUENCY (MHz)
30117914
Note 1: θ_JA measured on a 75mm x 90 mm four-layer PCB
Note 2: EN 55022:2006, +A1:2007, FCC Part 15 Subpart B, tested on
Evaluation Board with EMI configuration
© 2011 National Semiconductor Corporation 301179
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