1

FEATURES

DESCRIPTION

APPLICATIONS

TPS62290DRV

V

2.7Vto6V

IN

R

360k

1

W

V

1.8V,

1000mA

OUT

R

180k

2

W

GND

EN

FB

SW

C

10 F

OUT

m

MODE

C

10 F

IN

m

L1

2.2 H

m

C

22pF

1

30

40

50

60

70

80

90

100

0.00001 0.0001

0.001

0.01

0.1

1

I -OutputCurrent- A

O

V =4.2V

IN

V =3.8V

IN

V =5V

IN

V =4.5V

IN

V

=3.3V,

MODE=GND,

L =2.2 H

OUT

m

TPS62290, TPS62291, TPS62293

SLVS764C – JUNE 2007 – REVISED MARCH 2008

www.ti.com

1-A Step Down Converter in 2 x 2 SON Package

• High Efficiency Step Down Converter

• Output Current up to 1000 mA

The

TPS6229x

device

is

a

highly

efficient

synchronous step down dc-dc converter optimized for

• V

battery powered portable applications. It provides up

• 2.25 MHz Fixed Frequency Operation

to 1000-mA output current from a single Li-Ion cell.

• Power Save Mode at Light Load Currents

With an input voltage range of 2.3 V to 6 V, the

• Output Voltage Accuracy in PWM mode ±1.5%

device supports batteries with extended voltage

• Fixed Output Voltage Options

range and are ideal to power portable applications

like mobile phones and other portable equipment.

• Typ. 15-µA Quiescent Current

The TPS6229x operates at 2.25-MHz fixed switching

• 100% Duty Cycle for Lowest Dropout

frequency and enters Power Save Mode operation at

• Voltage Positioning at Light Loads

light load currents to maintain high efficiency over the

• Available in a 2 × 2 × 0,8 mm SON Package

entire load current range.

The Power Save Mode is optimized for low output

voltage ripple. For low noise applications, the device

• Cell Phones, Smart-phones

can be forced into fixed frequency PWM mode by

• WLAN

pulling the MODE pin high. In the shutdown mode,

• PDAs, Pocket PCs

the current consumption is reduced to less than 1

µA.

The TPS6229x allows the use of small inductors and

• Low Power DSP Supply

capacitors to achieve a small solution size.

• Portable Media Players

The TPS6229x is available in a 2-mm

× 2-mm 6-pin

• POL

SON package.

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 © 2007–2008, 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.