LMZ31506H
www.ti.com
SNVS996 –JULY 2013
®
6A SIMPLE SWITCHER Power Module with 4.5V-14.5V Input in QFN Package
Check for Samples: LMZ31506H
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FEATURES
DESCRIPTION
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Complete Integrated Power Solution Allows
Small Footprint, Low-Profile Design
The LMZ31506H SIMPLE SWITCHER® power
module is an easy-to-use integrated power solution
that combines a 6-A DC-to-DC converter with power
MOSFETs, a shielded inductor, and passives into a
low profile, QFN package. This total power solution
allows as few as
eliminates the loop compensation and magnetics part
selection process.
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9mm x 15mm x 2.8mm package
Efficiencies Up To 96%
Wide-Output Voltage Adjust
1.2 V to 5.5 V, with 1% Reference Accuracy
3 external components and
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Optional Split Power Rail allows
input voltage down to 1.7 V
The 9×15×2.8 mm QFN package is easy to solder
onto a printed circuit board and allows a compact
point-of-load design with greater than 90% efficiency
and excellent power dissipation with a thermal
impedance of 13°C/W junction to ambient. The
device delivers the full 6-A rated output current at
85°C ambient temperature without airflow.
Adjustable Switching Frequency
(480 kHz to 780 kHz)
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Synchronizes to an External Clock
Adjustable Slow-Start
Output Voltage Sequencing / Tracking
Power Good Output
The LMZ31506H offers the flexibility and the feature-
set of a discrete point-of-load design and is ideal for
powering performance DSPs and FPGAs. Advanced
packaging technology afford a robust and reliable
power solution compatible with standard QFN
mounting and testing techniques.
Programmable Undervoltage Lockout (UVLO)
Output Overcurrent Protection
Over Temperature Protection
Pre-bias Output Start-up
Operating Temperature Range: –40°C to 85°C
Enhanced Thermal Performance: 13°C/W
SIMPLIFIED APPLICATION
Meets EN55022 Class B Emissions
- Integrated Shielded Inductor
VIN
V
IN
APPLICATIONS
PVIN
PWRGD
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Broadband & Communications Infrastructure
Automated Test and Medical Equipment
Compact PCI / PCI Express / PXI Express
DSP and FPGA Point of Load Applications
High Density Distributed Power Systems
LMZ31506H
CIN
V
OUT
VOUT
RT/CLK
INH/UVLO
SS/TR
SENSE+
C
OUT
VADJ
100
95
90
85
80
75
R
SET
STSEL
PGND
AGND
70
VOUT = 3.3 V
fSW = 630 kHz
65
60
PVIN = VIN = 5 V
PVIN = VIN = 12 V
55
50
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5
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Output Current (A)
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Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
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SIMPLE SWITCHER is a registered trademark of Texas Instruments.
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
Copyright © 2013, Texas Instruments Incorporated