TPS40060 Datasheet, PDF(25/28 Page) Texas Instruments – WIDE-INPUT SYNCHRONOUS BUCK CONTROLLER

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TPS40060 Datasheet, PDF (25/28 Pages) Texas Instruments – WIDE-INPUT SYNCHRONOUS BUCK CONTROLLER

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DESIGN EXAMPLE (continued)

TPS40060

TPS40061

SLUS543D â DECEMBER 2002 â REVISED SEPTEMBER 2004

RKFF

133 kâ¦

TPS40060PWP

RILIM

174 kâ¦

1 KFF

ILIM 16

RT 412 kâ¦

2 RT

VIN 15

VIN

2â¦

3 BP5

HDRV 14

0.1 ÂµF

Si9470

SYNC

BPN10

0.1 ÂµF

RSW

10 â¦

30BQ060

10 ÂµH

5 SGND

SW 12

CSS

1.0 ÂµF

3300 pF

SS/SD

VFB

BP10 11

LDRV 10

Si4470

100kâ¦

4.64 kâ¦

180 ÂµF

C1 1800 pF

21.5 kâ¦

8 COMP PGND 9

PGND

470 pF

VOUT

100 pF

RBIAS

26.7 kâ¦

Figure 14. Design Example, 48 V to 3.3 V at 5 A dc-to-dc Converter

UDGâ02161

REFERENCES

1. Balogh, Laszlo, Design and Application Guide for High Speed MOSFET Gate Drive Circuits, Texas

Instruments/Unitrode Corporation, Power Supply Design Seminar, SEM-1400 Topic 2.

2. PowerPAD Thermally Enhanced Package Texas Instruments, Semiconductor Group, Technical Brief: TI

Literature No. SLMA002

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