LP5553 - PowerWise AVS Energy Management Unit with SPMI
Datasheet Packaging Samples & Pricing Eval. Boards Reliability Application Notes Knowledge Base

Features
SPMI bus for system-level power management
High-efficiency PowerWise ® Technology Adaptive Voltage Scaling for intelligent energy management in AVS and DVS environments
Two digitally programmable 3.6 MHz buck regulators to power dual voltage domains
Five Programmable LDOs for system functions such as:
PLL/Clock Generation
I/O
Memory Retention
Internal soft start
Variable regulator power up sequencing.

Key Specification


Programmable DC/DC Buck Converters

Programmable LDOs

2.7 to 4.8V Input Voltage Range
±2% (typical) Output Voltage Range
800 mA Output Current per DC/DC Converter
Up to 88% Efficiency
Digitally Programmable from 0.6 to 1.235V
Five digitally programmable LDOs

General Description


The LP5553 is a System Power Management Interface (SPMI) compliant Energy Management Unit for reducing power consumption of low power hand held applications such as dual-core processors and DSPs.

The LP5553 contains 2 advanced, digitally controlled step-down DC/DC converters for supplying variable voltages to a SoC. The device also incorporates 5 programmable low-dropout, low noise linear regulators for powering I/O, peripheral logic blocks, auxiliary system functions, and maintaining memory retention (dual-domain) in shutdown-mode.

The LP5553 implements 2 Non-Request Capable Slaves that are controlled via the SPMI. More...


Applications


GSM/GPRS/EDGE & UMTS cellular handsets
Hand-held radios
PDAs
Battery powered devices
Portable instruments
  Typical Application
*click for larger image

LP5553 System Block Diagram

ParametersValues
Input Min Voltage 2.7 Volt
Input Max Voltage 4.8 Volt
Output Range Bucks: 0.6 to 1.235V; LDO1: 0.7 to 2.2V; LDO2: 1.5 to 3.3V; LDO3 and LDO4: 0.6 to 1.25V; LDO5: 1.2 to 3.3V
Channels 7 Channels
Dropout Voltage 0.26 Volt
PowerWise Technology Adaptive Voltage Scaling
Output1 VoutMin 0.6 Volt
Output1 VoutMax 1.235 Volt
Output1 IoutMax 800 mA
Output1 Topology Buck
Output2 VoutMin 0.6 Volt
Output2 VoutMax 1.235 Volt
Output2 IoutMax 800 mA
Output2 Topology Buck
Output3 VoutMin 1.5
Output3 VoutMax 3.3 Volt
Output3 IoutMax 250 mA
Output3 Topology LDO
Output4 VoutMin 0.7 Volt
Output4 VoutMax 2.2 Volt
Output4 IoutMax 100 mA
Output4 Topology LDO
Special Features SPMI compliant with 2 slave domains. 2 Buck regulators; 5 LDOs.
Topology Buck, LDO
Switching Frequency 3600 kHz
Adj Switch Frequency No
Sync Pin No
RegType Power Management Unit
Step-Down Yes
Step-Up No
Inverting No
Flyback No
Efficiency (peak) 88 %
Adjustable Output Yes
Error Flag No
On/Off Pin Yes
Multiple Output Capability Yes
Temperature Min -40 deg C
Temperature Max +125 deg C
PowerWise Yes

  Additional Resources
Application Notes


Connection Diagram


click for larger image

Chip view, top-down

Datasheet
RoHS Compliance Information Size in KbytesDate Click link below to Download
LP5553 PowerWise ® AVS Energy Management Unit with SPMI 3801
Kbytes
5-Mar-09 Download

If you have trouble printing or viewing PDF file(s), see Printing Problems.


Package Availability, Models, Samples & Pricing
Part NumberPackageFactory Lead TimeModelsSamples &
Electronic
Orders
Budgetary PricingStd
Pack
Size
Package
Marking
Format
TypePinsSpec.MSL
Rating
Peak
Reflow
RoHS
Report
CAD
Symbols
WeeksQtyQty$US each
LP5553TLEV-KITEvaluation Board for the LP5553TLFull productionN/A
 
Buy Now
 CALLN/A-
6 weeksN/A
LP5553TLMICRO SMD36NOPB1260RoHS N/A Full productionN/A
Samples
Buy Now
1K+$4.50reel
of
250
XYTT
I 5553
12 weeksN/A
LP5553TLXMICRO SMD36NOPB1260RoHS N/A Full productionN/A
 
Buy Now
1K+$4.50reel
of
1000
XYTT
I 5553
12 weeksN/A

General Description


The LP5553 is a System Power Management Interface (SPMI) compliant Energy Management Unit for reducing power consumption of low power hand held applications such as dual-core processors and DSPs.

The LP5553 contains 2 advanced, digitally controlled step-down DC/DC converters for supplying variable voltages to a SoC. The device also incorporates 5 programmable low-dropout, low noise linear regulators for powering I/O, peripheral logic blocks, auxiliary system functions, and maintaining memory retention (dual-domain) in shutdown-mode.

The LP5553 implements 2 Non-Request Capable Slaves that are controlled via the SPMI. The LP5553 operates cooperatively with PowerWise ® AVS technology compatible processors to optimize supply voltages adaptively (AVS - Adaptive Voltage Scaling) over process and temperature variations. It also supports dynamic voltage scaling (DVS) using frequency/voltage pairs from pre-characterized look-up tables.

Reliability Metrics


Part Number Process EFR Reject EFR Sample Size PPM LTA Rejects LTA Device Hours FITS MTTF (Hours)
LP5553TLCMOS70184060010890004309006723
LP5553TLXCMOS70184060010890004309006723

Note: The Early Failure Rates (EFR) were calculated as point estimate PPM based on rejects and sample size for EFR. The Long Term Failure Rates were calculated at 60% confidence using the Arrhenius equation at 0.7eV activation energy and derating the assumed stress temperature of 150°C to an application temperature of 55°C.

For more information on Reliability Metrics, please click here.


Application Notes


TitleSize in Kbytes Date Click link below to Download
AN-1857: Application Note 1857 LP5553 Evaluation Kit 3940
Kbytes
25-Mar-09 Download

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More Application Notes


TitleSize in Kbytes Date Click link below to Download
AN-1653: Application Note 1653 User's Graphical User Interface(GUI) for LP555x Evaluation Board PowerWise™ Technology Compliant Energy Management Unit 1675
Kbytes
7-Jun-07 Download
AN-1460: Application Note 1460 Emulating the PowerWise Interface Using GPIOs and Software 448
Kbytes
12-Apr-06 Download
AN-1610: Application Note 1610 LP5552 Evaluation Board 10829
Kbytes
20-May-08 Download
AN-1467: Application Note 1467 LP5551 Evaluation Board 32843
Kbytes
8-Jun-07 Download
AN-1467 (Japanese): Application Note 1467 LP5551 Evaluation Board
1847 Kbytes   Download

If you have trouble printing or viewing PDF file(s), see Printing Problems.

[Information as of 7-Nov-2009]