LMZ31506H_15 Datasheet, PDF (1/35 Pages) Texas Instruments – 6A SIMPLE SWITCHER® Power Module with 4.5V-14.5V Input in QFN Package

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
FEATURES
1
•2 Complete Integrated Power Solution Allows
Small Footprint, Low-Profile Design
• 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
• Optional Split Power Rail allows
input voltage down to 1.7 V
• Adjustable Switching Frequency
(480 kHz to 780 kHz)
• Synchronizes to an External Clock
• Adjustable Slow-Start
• Output Voltage Sequencing / Tracking
• Power Good Output
• 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
• Meets EN55022 Class B Emissions
- Integrated Shielded Inductor
DESCRIPTION
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 3 external components and
eliminates the loop compensation and magnetics part
selection process.
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.
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.
SIMPLIFIED APPLICATION
VIN
APPLICATIONS
• 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
100
95
90
85
80
75
70
65
V_OUT = 3.3 V
f_SW = 630 kHz
60
55
PV_IN = V_IN = 5 V
PV_IN = V_IN = 12 V
50
0
1
2
3
4
5
6
Output Current (A)
V_IN
C_IN
PVIN PWRGD
LMZ31506H
VOUT
RT/CLK
SENSE+
INH/UVLO
SS/TR
VADJ
STSEL
PGND
AGND
V_OUT
C_OUT
R_SET
1
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.
SIMPLE SWITCHER is a registered trademark of Texas Instruments.
2
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