lp8725tlx-nopb National Semiconductor Corporation, lp8725tlx-nopb Datasheet

lp8725tlx-nopb

Manufacturer Part Number

lp8725tlx-nopb

Description

Power Management Unit For Application/multimedia Processors And Sub-systems

Manufacturer

National Semiconductor Corporation

Datasheet

1.LP8725TLX-NOPB.pdf (6 pages)

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Power Management Unit for Application/Multimedia

Processors and Sub-Systems

General Description

This device is a multi-function, programmable Power Man-

agement Unit (PMU), optimized for sub block power solutions.

This device integrates two highly efficient 600 mA step-down

DC/DC converters configurable up to 800 mA load with Dy-

namic Voltage Scaling (DVS) through an I

analog LDOs, three digital LDOs for up to 300 mA load current

each, two Low Input Low Output (LILO) regulators and an

cess to the internal control registers. The device also features

programmable power-on sequencing. LDO regulators pro-

vide high PSRR and low noise ideally suited for supplying

power to both analog and digital loads.

The device can be configured either as a Sub_PMU for mod-

ules (for example, camera/multimedia modules) or as a

stand-alone PMU that powers the processor itself.

“Notice: This document is not a datasheet. For more in-

formation regarding this product or to order samples

please contact your local National Semiconductor sales

office or visit http://www.national.com/support/dir.html.

C-compatible serial interface to allow a host controller ac-

300980

C, two low noise

PRODUCT BRIEF

LP8725

Features

■

Key Specifications

■

Applications

■

Two High Efficiency Step-Down DC/DC Convertors,

small 1µH inductors, with options up to 800 mA.

Three digital LDOs for up to 300 mA load current each

Two low-noise analog 300 mA LDOs

Two low-input low output regulators, I

registers

Adjustable startup sequence through I

Thermal shutdown protection

190 mV typ. Dropout Voltage on digital LDOs @ 300 mA

2% typ. Output Voltage Accuracy on digital and analog

LDOs

10 µVrms Output Noise on analog LDOs

±2% typ. Output Voltage Bucks up to 93% efficiency

30-bump micro SMD package (0.5 mm pitch)

Multi-media Processors

Portable Handheld Products

OUT

C-compatible interface for the controlling of internal

= 600 mA, with a 4MHz switching frequency using

OUT

December 1, 2009

C or configuration

= 300 mA

www.national.com

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lp8725tlx-nopb Summary of contents

Page 1

... PMU that powers the processor itself. “Notice: This document is not a datasheet. For more in- formation regarding this product or to order samples please contact your local National Semiconductor sales office or visit http://www.national.com/support/dir.html. © 2009 National Semiconductor Corporation LP8725 PRODUCT BRIEF Features ■ ...

Page 2

Typical Application (SUB-PMU) www.national.com 2 30098001 ...

Page 3

Typical Application (PMU) 3 30098005 www.national.com ...

Page 4

... Ordering Information Order Number LP8725TLE LP8725TLX LP8725TLE-A LP8725TLX-A LP8725TLE-B LP8725TLX-B The LP8725-A and LP8725-B variants offer alternative startup default configurations to the standard LP8725 part (see Start-up Sequences and Default Output Voltages). www.national.com Package Type Product Identification micro SMD 8725 micro SMD ...

Page 5

Physical Dimensions inches (millimeters) unless otherwise noted 30-bump micro SMD Package NS Package Number TLA30D1A X1 = 2.568 mm ±0.030 2.974 mm ±0.030 0.600 mm ±0.075 mm 5 www.national.com ...

Page 6

... National Semiconductor and the National Semiconductor logo are registered trademarks of National Semiconductor Corporation. All other brand or product names may be trademarks or registered trademarks of their respective holders. ...

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