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

TPS62290DRV

V

2.7 V to 6.0 V

IN

R

360 k

1

W

V

1.8 V,

1000 mA

OUT

R

180 k

2

W

GND

EN

FB

SW

MODE

C

10 F

IN

m

L1

2.2 H

m

C

22 pF

1

Product

Folder

Sample &

Buy

Technical

Documents

Tools &

Software

Support &

Community

TPS62290, TPS62291, TPS62293

SLVS764F – JUNE 2007 – REVISED JANUARY 2016

TPS6229x 1-A Step Down Converter in 2 x 2 DRV Package

1 Features

3 Description

The

TPS6229x

devices

are

highly

efficient

1

•

High Efficiency - up to 96%

synchronous step down DC/DC converters optimized

•

Output Current up to 1000 mA

for battery powered portable applications. They

•

provide up to 1000-mA output current from a single

with Extended Voltage Range

Li-ion cell.

•

2.25-MHz Fixed Frequency Operation

With an input voltage range of 2.3 V to 6.0 V, the

•

Power Save Mode at Light Load Currents

devices support batteries with extended voltage

range and are ideal to power portable applications

•

Output Voltage Accuracy in PWM Mode ±1.5%

like mobile phones and other portable equipment.

•

Fixed Output Voltage Options

The TPS6229x devices operate at 2.25-MHz fixed

•

Typical 15-

μA Quiescent Current

switching frequency and enter power save mode

•

100% Duty Cycle for Lowest Dropout

operation at light load currents to maintain high

•

Voltage Positioning at Light Loads

efficiency over the entire load current range.

•

Available in a 2-mm × 2-mm × 0.8-mm WSON (6)

The power save mode is optimized for low output

Package (DRV)

voltage ripple. For low noise applications, the devices

can be forced into fixed frequency pulse width

2 Applications

modulation (PWM) mode by pulling the MODE pin

high. In the shutdown mode, the current consumption

•

Mobile Phones, Smart-Phones

is reduced to less than 1

μA. The TPS6229x devices

•

Wireless LAN

allow the use of small inductors and capacitors to

•

Pocket PCs

achieve a small solution size.

•

Low Power DSP Supply

The TPS6229x devices operate over a free air

temperature range of –40°C to 85°C. The devices are

•

Portable Media Players

available in a 2-mm × 2-mm 6-pin WSON package

•

Point-of-Load (POL) Applications

(DRV).

Device Information(1)

PART NUMBER

PACKAGE

BODY SIZE (NOM)

TPS6229x

SON (6)

2.00 mm × 2.00 mm

(1) For all available packages, see the orderable addendum at

the end of the datasheet.

Typical Application Schematic

Efficiency vs Output Current

1

An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,

intellectual property matters and other important disclaimers. PRODUCTION DATA.