0.0001

0

10

20

30

40

50

60

70

80

90

100

0.001

0.01

0.1

1

I -OutputCurrent- A

O

V =3.8V

I

V =5V

I

V =4.2V

I

V

=3.3V,

MODE=GND,

L =2.2 H

OUT

m

VIN

GND

EN

FB

SW

TPS62590DRV

MODE

L

2.2 H

m

C

OUT

10mF

C1

22pF

R1

R2

C

IN

10mF

PwrPAD

0.75 V to V

IN

V

I N

2.5 V to 5.5 V

5

4

2

1

3

6

Product

Folder

Sample &

Buy

Technical

Documents

Tools &

Software

Support &

Community

Reference

Design

TPS62590

SLVS897C – JANUARY 2009 – REVISED DECEMBER 2015

TPS62590 1-A Step Down Converter in 2-mm × 2-mm WSON Package

1 Features

3 Description

The

TPS62590

device

is

a

high-efficiency

1

•

Output Current up to 1000 mA

synchronous step down converter, optimized for

•

Input Voltage Range from 2.5 V to 5.5 V

battery powered portable applications. The device

•

Output Voltage Accuracy in PWM Mode ±2.5%

provides up to 1000-mA output current from batteries,

such as single Li-Ion or other common chemistry AA

•

Typical 15-

μA Quiescent Current

and AAA cells.

•

100% Duty Cycle for Lowest Dropout

With an input voltage range of 2.5 V to 5.5 V, the

•

Available in a 2 mm × 2 mm × 0.8 mm WSON

device is targeted to power a large variety of portable

Package

handheld equipment or POL applications.

•

For Improved Features Set, See the TPS62290

The TPS62590 family operates at 2.25-MHz fixed

device (SLVS764)

switching frequency and enters a power save mode

operation at light load currents to maintain a high

2 Applications

efficiency over the entire load current range.

•

Mobile Phones, Smart Phones

The power save mode is optimized for low output

•

Tablet PCs

voltage ripple. For low noise applications, the device

•

WLAN

can be forced into fixed frequency pulse width

modulation (PWM) mode by pulling the MODE pin

•

Low Power DSP Supply

high. In the shutdown mode the current consumption

•

Point-of-Load (POL) Applications

is reduced to less than 1 µA. The TPS62590 allows

the use of small inductors and capacitors to achieve a

small solution size.

The TPS62590 is available in a 2-mm × 2-mm 6-pin

WSON package.

Device Information(1)

PART NUMBER

PACKAGE

BODY SIZE (NOM)

TPS62590

WSON (6)

2.00 mm × 2.00 mm

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

the end of the data sheet.

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.