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LMZ31506

更新时间： 2024-09-14 12:36:43
品牌 Logo 应用领域
德州仪器 - TI 电源电路
页数 文件大小 规格书
30页 837K
描述
6A SIMPLE SWITCHER® Power Module with 2.95V-14.5V Input and Current Sharing in QFN Package

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LMZ31506 数据手册

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LMZ31506  
www.ti.com  
SNVS993 –JUNE 2013  
®
6A SIMPLE SWITCHER Power Module with 2.95V-14.5V Input and Current Sharing  
in QFN Package  
Check for Samples: LMZ31506  
1
FEATURES  
DESCRIPTION  
The LMZ31506 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 three external components and  
eliminates the loop compensation and magnetics part  
selection process.  
2
•
Complete Integrated Power Solution Allows  
Small Footprint, Low-Profile Design  
•
9mm x 15mm x 2.8mm package  
- Pin Compatible with LMZ31503  
•
•
Efficiencies Up To 96%  
Wide-Output Voltage Adjust  
0.6 V to 5.5 V, with 1% Reference Accuracy  
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.  
•
•
Supports Parallel Operation for Higher Current  
Optional Split Power Rail allows  
input voltage down to 1.6 V  
•
Adjustable Switching Frequency  
(250 kHz to 780 kHz)  
•
•
•
•
•
•
•
•
•
•
•
Synchronizes to an External Clock  
Adjustable Slow-Start  
The LMZ31506 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.  
Output Voltage Sequencing / Tracking  
Power Good Output  
Programmable Undervoltage Lockout (UVLO)  
Output Overcurrent Protection (Hiccup Mode)  
Over-Temperature Protection  
SIMPLIFIED APPLICATION  
Pre-bias Output Start-up  
Operating Temperature Range: –40°C to 85°C  
Enhanced Thermal Performance: 13°C/W  
VIN  
ISHARE  
PWRGD  
V
IN  
Meets EN55022 Class B Emissions  
- Integrated Shielded Inductor  
PVIN  
LMZ31506  
CIN  
V
OUT  
VOUT  
APPLICATIONS  
RT/CLK  
INH/UVLO  
SS/TR  
•
•
•
•
Broadband & Communications Infrastructure  
Automated Test and Medical Equipment  
Compact PCI, PCI Express and PXI Express  
DSP and FPGA Point of Load Applications  
SENSE+  
C
OUT  
VADJ  
R
SET  
100  
95  
90  
85  
80  
75  
STSEL  
PGND  
AGND  
VOUT = 3.3 V  
fSW = 630 kHz  
70  
65  
60  
PVIN = VIN = 5 V  
PVIN = VIN = 12 V  
55  
50  
0
1
2
3
4
5
6
Output Current (A)  
G000  
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.  
2
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  
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