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LMZ31520
SLVSBM...
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Technical Documents
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Reference Design
LMZ31520
SLVSBM9E – OCTOBER 2013 – REVISED SEPTEMBER 2018
LMZ31520 20-A Power Module With 3-V to 14.5-V Input in QFN Package
1 Features
1 Complete Integrated Power Solution; Smaller than a Discrete Design
15 mm × 16 mm × 5.8 mm Package Size - Pin Compatible with LMZ31530
Ultra-Fast Load Step Response Efficiencies Up To 96% Wide-Output
Voltage Adjust
0.6 V to 3.6 V, with 1% Reference Accuracy Optional Split Power Rails Allows
Input
Voltage Down to 3 V Selectable Switching Frequency
(300 kHz to 850 kHz) Selectable Slow-Start Adjustable Overcurrent Limit Power Good Output Output
Voltage Sequencing Over Temperature Protection Pre-bias Output Start-up Operating Temperature Range: –40°C to 85°C Enhanced Thermal Performance: 8.6°C/W Meets EN55022 Class A Emissions
- Integrated Shielded Inductor Create a Custom Design Using the LMZ31520
With the WEBENCH® Power Designer
2 Applications
Broadband and Communications Infrastructure DSP and FPGA Point of Load Applications High Density Power Systems
Efficiency (%)
100 95 90 85 80 75 70 65 60 55 50 0
Efficiency
Vout = 1.8 V Fsw = 500 kHz
PVIN = 3.3 V, VIN = 5 V PVIN = VIN = 5 V PVIN = VIN = 12 V
4 8 12 16 Output Current (A)
20
C001
3 Description
The LMZ31520 power module is an easy-to-use integrated power solution that combines a 20-A DC/DC converter with power
MOSFETs, a shielded inductor,...