VIN

NC

NC

ENA

GND

VSENSE

BOOT

PH

TPS5410

VIN

VOUT

75

80

85

90

95

100

0

0.2

0.4

0.6

1

1.2

1.4

I

OutputCurrent

A

O

-

-

EfficiencyvsOutputCurrent

SimplifiedSchematic

V

V =12V

f =500kHz

T =25 C

O

s

A

o

0.8

TPS5410-Q1

1-A, WIDE INPUT RANGE, STEP-DOWN SWIFT™ CONVERTER

Check for Samples: TPS5410-Q1

1

FEATURES

APPLICATIONS

•

Consumer: Set-top Box, DVD, LCD Displays

2

•

Qualified for Automotive Applications

•

Industrial and Car Audio Power Supplies

•

Wide Input Voltage Range: 5.5 V to 36 V

•

Battery Chargers, High Power LED Supply

•

Up to 1-A Continuous (1.2-A Peak) Output

•

12-V/24-V Distributed Power Systems

Current

•

High Efficiency up to 95% Enabled by 110-m

Ω

DESCRIPTION

Integrated MOSFET Switch

As a member of the SWIFT™ family of DC/DC

•

Wide Output Voltage Range: Adjustable Down

regulators, the TPS5410 is a high-output-current

to 1.22 V with 1.5% Initial Accuracy

PWM converter that integrates a low resistance high

•

Internal Compensation Minimizes External

side N-channel MOSFET. Included on the substrate

Parts Count

with the listed features is a high performance voltage

•

Fixed 500-kHz Switching Frequency for Small

error amplifier that provides tight voltage regulation

accuracy

under

transient

conditions;

an

Filter Size

undervoltage-lockout circuit to prevent start-up until

•

Improved Line Regulation and Transient

the input voltage reaches 5.5 V; an internally set

Response by Input Voltage Feed Forward

slow-start circuit to limit inrush currents; and a voltage

•

System Protected by Over Current Limiting,

feed-forward

circuit

to

improve

the

transient

Over Voltage Protection and Thermal

response. Using the ENA pin, shutdown supply

Shutdown

current is reduced to 18

μA typically. Other features

include an active high enable, overcurrent limiting,

•

–40°C to 125°C Operating Junction

overvoltage protection and thermal shutdown. To

Temperature Range

reduce design complexity and external component

•

Available in Small 8-Pin SOIC Package

count, the TPS5410 feedback loop is internally

•

For SWIFT Documentation, Application Notes

compensated.

and Design Software, See the TI Website at

The TPS5410 device is available in an easy to use

www.ti.com/swift

8-pin SOIC package. TI provides evaluation modules

and software tools to aid in quickly achieving

high-performance power supply designs to meet

aggressive equipment development cycles.

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

SWIFT is a trademark of Texas Instruments.

PRODUCTION DATA information is current as of publication date.

Copyright © 2009, 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.