V

IN

L1

VIN

VAUX

EN

PS/SYNC

GND

L2

VOUT

FB

PGND

L

1

1µH

C

2

C

3

2.5 V to 12V

V

OUT

5V /800mA

TPS63060

PG

Power Good

Output

C

1

2X10µF

0.1µF

3X22µF

1M

111k

10pF

R

1

R

2

C

4

1M

R

3

TPS63060

TPS63061

www.ti.com

SLVSA92A

– DECEMBER 2011 – REVISED FEBRUARY 2012

HIGH INPUT VOLTAGE BUCK-BOOST CONVERTER WITH 2A SWITCH CURRENT

Check for Samples: TPS63060, TPS63061

1

FEATURES

2

•

Up to 93% Efficiency

•

Load Disconnect During Shutdown

•

2A/1A Output Current at 5V in Buck Mode

•

Overtemperature Protection

•

1.3A Output Current at 5V in Boost Mode

•

Overvoltage Protection

(VIN

>4V)

•

Available in a 3-mm

× 3-mm, SON-10 Package

•

Automatic Transition Between Step Down and

Boost Mode

APPLICATIONS

•

Typical Device Quiescent Current less than

•

Dual LI-Ion Application

30

μA

•

DSC's and Camcorders

•

Input Voltage Range: 2.5V to 12V

•

Notebook Computer

•

Fixed and Adjustable Output Voltage Options

•

Industrial Metering Equipment

from 2.5V to 8V

•

Ultra Mobile PC's and Mobile Internet Devices

•

Power Save Mode for Improved Efficiency at

•

Personal Medical Products

Low Output Power

•

High Power LED's

•

Forced Fixed Frequency Operation at 2.4MHz

and Synchronization Possible

•

Power Good Output

•

Buck-Boost Overlap Control

™

DESCRIPTION

The TPS6306x devices provide a power supply solution for products powered by either three-cell up to six-cell

alkaline, NiCd or NiMH battery, or a one-cell or dual-cell Li-Ion or Li-polymer battery. Output currents can go as

high as 2A while using a dual-cell Li-Ion or Li-Polymer Battery, and discharge it down to 5V or lower. The

buck-boost converter is based on a fixed frequency, pulse-width-modulation (PWM) controller using synchronous

rectification to obtain maximum efficiency. At low load currents, the converter enters Power Save mode to

maintain high efficiency over a wide load current range. The Power Save mode can be disabled, forcing the

converter to operate at a fixed switching frequency. The maximum average current in the switches is limited to a

typical value of 2.25A. The output voltage is programmable using an external resistor divider, or is fixed internally

on the chip. The converter can be disabled to minimize battery drain. During shutdown, the load is disconnected

from the battery. The device is packaged in a 10-pin SON PowerPAD

™ package measuring 3mm × 3mm (DSC).

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

Buck-Boost Overlap Control, PowerPAD are trademarks of Texas Instruments.

PRODUCTION DATA information is current as of publication date.

Copyright

© 2011–2012, 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.