50

55

60

65

70

75

80

85

90

95

100

0

1

2

3

4

5

6

Output Current (A)

G000

LMZ31506

PWRGD

SENSE+

VOUT

VIN

PVIN

INH/UVLO

RT/CLK

VADJ

SS/TR

STSEL

AGND

PGND

C

IN

ISHARE

LMZ31506

www.ti.com

SNVS993 – JUNE 2013

in QFN Package

Check for Samples: LMZ31506

1

FEATURES

DESCRIPTION

The LMZ31506 SIMPLE SWITCHER® power module

2

•

Complete Integrated Power Solution Allows

is an easy-to-use integrated power solution that

Small Footprint, Low-Profile Design

combines a 6-A DC-to-DC converter with power

•

9mm x 15mm x 2.8mm package

MOSFETs, a shielded inductor, and passives into a

- Pin Compatible with LMZ31503

low profile, QFN package. This total power solution

allows as few as three external components and

•

Efficiencies Up To 96%

eliminates the loop compensation and magnetics part

•

Wide-Output Voltage Adjust

selection process.

0.6 V to 5.5 V, with 1% Reference Accuracy

The 9×15×2.8 mm QFN package is easy to solder

•

Supports Parallel Operation for Higher Current

onto a printed circuit board and allows a compact

•

Optional Split Power Rail allows

point-of-load design with greater than 90% efficiency

input voltage down to 1.6 V

and excellent power dissipation with a thermal

•

Adjustable Switching Frequency

impedance of 13°C/W junction to ambient. The

device delivers the full 6-A rated output current at

(250 kHz to 780 kHz)

85°C ambient temperature without airflow.

•

Synchronizes to an External Clock

The LMZ31506 offers the flexibility and the feature-

•

Adjustable Slow-Start

set of a discrete point-of-load design and is ideal for

•

Output Voltage Sequencing / Tracking

powering performance DSPs and FPGAs. Advanced

•

Power Good Output

packaging technology afford a robust and reliable

power

solution

compatible

with

standard

QFN

•

Programmable Undervoltage Lockout (UVLO)

mounting and testing techniques.

•

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

•

Meets EN55022 Class B Emissions

- Integrated Shielded Inductor

APPLICATIONS

•

Broadband & Communications Infrastructure

•

Automated Test and Medical Equipment

•

Compact PCI, PCI Express and PXI Express

•

DSP and FPGA Point of Load Applications

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.

Copyright © 2013, Texas Instruments Incorporated

Products conform to specifications per the terms of the Texas

Instruments standard warranty. Production processing does not

necessarily include testing of all parameters.