GND

VSNS

VIN

NC

NC

ENA

BOOT

PH

VIN

U1

TPS5410D

12V

14.5V

36V

-

C1

4.7 F

m

C3

47 F

(SeeNote A)

m

C2

0.01 F

m

L1

68 H

m

R2

1.13kW

D1

B340A

7

1

5

8

2

4

3

6

VOUT

ENA

+

R1

10kW

TPS5410

www.ti.com

SLVS675D – AUGUST 2006 – REVISED DECEMBER 2014

8 Applications and Implementation

NOTE

Information in the following applications sections is not part of the TI component

specification, and TI does not warrant its accuracy or completeness. TI’s customers are

responsible for determining suitability of components for their purposes. Customers should

validate and test their design implementation to confirm system functionality.

8.1 Application Information

The TPS5410 is a 1-A, step down regulator with an integrated high-side MOSFET. This device is typically used

to convert a higher DC voltage to a lower DC voltage with a maximum available output current of 1 A. Example

applications are: High Density Point-of-Load Regulators for Set-top Box, DVD, LCD and Plasma Displays, High

Power LED Supply, Car Audio, Battery Chargers, and other 12-V and 24-V Distributed Power Systems. Use the

following design procedure to select component values for the TPS5410. This procedure illustrates the design of

a high frequency switching regulator. Alternatively, use the WEBENCH software to generate a complete design.

The WEBENCH software uses an iterative design procedure and accesses a comprehensive database of

components when generating a design.

8.2 Typical Applications

8.2.1 Application Circuit

Figure 9 shows the schematic for a typical TPS5410 application. The TPS5410 can provide up to 1-A output

current at a nominal output voltage of 12 V.

A.

C3 = Tantalum AVX TPSE476M020R0150

Figure 9. Application Circuit, 14.5-V — 36 V to 12-V

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