LP8725TLE NSC [National Semiconductor], LP8725TLE Datasheet

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LP8725TLE

Manufacturer Part Number
LP8725TLE
Description
Power Management Unit for Application/Multimedia Processors and Sub-Systems
Manufacturer
NSC [National Semiconductor]
Datasheet

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© 2010 National Semiconductor Corporation
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
I
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.
2
C-compatible serial interface to allow a host controller ac-
LP8725 PRODUCT BRIEF
300980
2
C, two low noise
Features
Key Specifications
Applications
Two High Efficiency Step-Down DC/DC Convertors,
I
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
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
2
C-compatible interface for the controlling of internal
= 600 mA, with a 4MHz switching frequency using
OUT
2
C or configuration
October 14, 2010
= 300 mA
www.national.com

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LP8725TLE Summary of contents

Page 1

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 ...

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 LP8725TLE-D LP8725TLX-D The LP8725-A, LP8725-B and LP8725–D 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 ...

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

For more National Semiconductor product information and proven design tools, visit the following Web sites at: www.national.com Products Amplifiers www.national.com/amplifiers Audio www.national.com/audio Clock and Timing www.national.com/timing Data Converters www.national.com/adc Interface www.national.com/interface LVDS www.national.com/lvds Power Management www.national.com/power Switching Regulators www.national.com/switchers LDOs ...

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