IN

EN

SW

FB

FREQ

AGND

COMP

SS

1

4

6

8

3

7

2

5

PGND

9

10

SW

Cby

1 F

16V

m

Cin

2*10 F

16V

m

V

2.5Vto6V

IN

L

3.3 H

m

D

SL22

V

15V/500mA

S

R1

200kW

R2

18kW

Cout

4*10 F

25V

m

Rcomp

100kW

Ccomp

820pF

Css

100nF

TPS61087

Actual Size

3 mm x 3 mm

TPS61087

www.ti.com

SLVS821C – MAY 2008 – REVISED JULY 2013

650 kHz/1.2 MHz, 18.5 V STEP-UP DC-DC CONVERTER WITH 3.2 A SWITCH

Check for Samples: TPS61087

1

FEATURES

•

2.5 V to 6 V Input Voltage Range

APPLICATIONS

•

18.5 V Boost Converter With 3.2 A Switch

•

Handheld Devices

Current

•

GPS Receiver

•

650 kHz/1.2 MHz Selectable Switching

•

Digital Still Camera

Frequency

•

Portable Applications

•

Adjustable Soft-Start

•

DSL Modem

•

Thermal Shutdown

•

PCMCIA Card

•

Undervoltage Lockout

•

TFT LCD Bias Supply

•

10-Pin QFN and thin QFN Packages

DESCRIPTION

The TPS61087 is a high frequency, high efficiency DC to DC converter with an integrated 3.2 A, 0.13

Ω power

switch capable of providing an output voltage up to 18.5 V. The selectable frequency of 650 kHz or 1.2 MHz

allows the use of small external inductors and capacitors and provides fast transient response. The external

compensation allows optimizing the application for specific conditions. A capacitor connected to the soft-start pin

minimizes inrush current at startup.

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.

PRODUCTION DATA information is current as of publication date.

Copyright © 2008–2013, 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.