LDO1

1 µF

1.2V-3.3V

@300 mA

1 µF

1.2V-3.3V

@300 mA

1.2V-3.3V

@300 mA

1 µF

LDO3

1 µF

0.8V-2.85V

@300 mA

LDO4

LDO5

1 µF

1.2V-3.3V

@300 mA

LDO2

A-type

LDO1

D-type

LDO3

A-type

LDO4

LO-type

LDO5

D-type

2.2 µF

2.2 µF

LP8720

Voltage

Reference

Thermal

Shutdown

2.2 µF

LDO2

0.8V...2.3V

@400mA

Buck

10 µF

2.2 µH

SW

FB

GNDB

VINB

10 µF

10k

1.5k

1.5k

SDA

IRQ_N

SCL

EN

DVS

Serial Interface

and

Control

DEFSEL

IDSEL

GND

LP8720

www.ti.com

SNVS575B – JULY 2008 – REVISED MAY 2013

Check for Samples: LP8720

1

FEATURES

APPLICATIONS

2

•

5 Low Noise LDO’s for up to 300 mA

•

Cellular Handsets

•

One High-Efficiency Synchronous Magnetic

•

Portable Hand-Held Products

DESCRIPTION

–

The LP8720 is a multi-function, programmable Power

–

Auto Mode PFM/PWM Switch

Management Unit, optimized for sub block power

–

Low Inductance 2.2 µH @ 2 MHz Clock

requirement solutions. This device integrates one

–

Dynamic Voltage Scale Control

highly efficient 400 mA step-down DC-DC converter

with Dynamic Voltage Scale (DVS), five low-noise low

•

Internal Registers

compatible interface to allow a host controller access

•

20-Bump 2.5 x 2.0 mm DSBGA Package

to the internal control registers of the LP8720.

Additionally, the LP8720 features programmable

KEY SPECIFICATIONS

power-on sequencing.

•

LDO regulators provide high PSRR and low noise

DC

ideally suited for supplying power to both analog and

digital loads. The package will be the smallest 2.5

•

Automatic Soft Start on DC-DC

mm x 2.0 mm 20-bump DSBGA package.

•

200 mV Typ Dropout Voltage at 300 mA on

LDO’s

•

2% (Typ) Output Voltage Accuracy on LDO’s

Typical Application Diagram

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 © 2008–2013, 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.