1

FEATURES

DESCRIPTION

APPLICATIONS

BIAS

IN

EN

GND

OUT

C3

B2

A3

C1

A1

TPS720xx

YZUPACKAGE

1,33mmx0,96mmWCSP-5

(TOPVIEW)

IN

GND

BIAS

6

5

4

OUT

NC

EN

1

2

3

Thermal

Pad

TPS720xx

DRVPACKAGE

2mmx2mmSON-6

(TOPVIEW)

TPS720xx

V

EN

V

BATT

IN

EN

OUT

GND

V

CORE

2.2 F

Ceramic

m

1.3V

1.8V

Standalone

dc/dc

Converter

orPMU

BIAS

TPS720xx

2

• 350mA High-Performance LDO

The TPS720xx family of dual rail, low-dropout linear

regulators (LDOs) offers outstanding ac performance

• Low Quiescent Current: 38µA

(PSRR, load and line transient response), while

• Excellent Load Transient Response:

consuming a very low quiescent current of 38

µA.

• Excellent Line Transient Response:

LDO draws very low current (on the order of the

quiescent current of the LDO) and can be connected

to any power supply that is equal to or greater than

• Low Noise: 48µV

1.4V above the output voltage. The main power path

• 80dB V

• 70dB V

efficiency of the solution in many power-sensitive

• Fast Start-Up Time: 140µs

• Built-In Soft-Start with Monotonic V

high-efficiency, dc-dc step-down regulator.

The TPS720xx supports a novel feature in which the

• Over-Current and Thermal Protection

output of the LDO regulates under light loads when

the IN pin is left floating. The light-load drive current

• Low Dropout: 110mV at I

• Stable with 2.2µF Output Capacitor

feature

is

particularly

useful

in

power-saving

• Available in 1,33mm x 0,96mm WCSP-5 and

applications where the dc/dc converter connected to

2mm x 2mm SON-6 Packages

the IN pin is disabled but the LDO is still required to

regulate the voltage to a light load.

The TPS720xx is stable with ceramic capacitors and

• Digital Cameras

uses an advanced BICMOS fabrication process that

• Cellular Camera Phones

yields a dropout of 110mV at a 350mA output load.

The TPS720xx has the unique feature of providing a

• Wireless LAN

• Handheld Products

output capacitor of 2.2

µF.

The TPS720xx uses a precision voltage reference

and feedback loop to achieve overall accuracy of 2%

over load, line, process, and temperature extremes.

An ultra-small wafer chip-scale package (WCSP)

makes the TPS720xx ideal for handheld applications.

The TPS720xx is also available in a SON-8 package.

This family of devices is fully specified over the

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

All trademarks are the property of their respective owners.

PRODUCTION DATA information is current as of publication date.

Copyright © 2008–2009, 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.