LM26003 - 3A Switching Regulator with High Efficiency Sleep Mode from the PowerWise® Family

Datasheet Packaging Samples & Pricing Eval. Boards Reliability Design Tools Application Notes Knowledge Base

Features
•LM26003Q is an Automotive Grade product that is AEC-Q100 grade 1 qualified (-40°C to +125°C operating junction temperature)
•High efficiency sleep mode
•40 µA typical Iq in sleep mode
•10.8 µA typical Iq in shutdown mode
•3.0V minimum input voltage
•4.0V to 38V continuous input range
•1.5% reference accuracy
•Cycle-by-cycle current limit
•Adjustable Frequency (150 kHz to 500 kHz)
•Synchronizable to an external clock
•Power Good Flag
•Forced PWM function
•Adjustable Soft-start
•TSSOP-20 exposed pad package
•Thermal Shut Down

General Description

The LM26003 is a switching regulator designed for the high efficiency requirements of applications with stand-by modes. More...


Applications

•Automotive Telematics
•Navigation systems
•In-Dash Instrumentation
•Battery Powered Applications
•Stand-by power for home gateways/set-top boxes
  Typical Application
click for larger image


Parametric Table     expand
Parametric Table    collapse
Output Current 3000 mA
Input Min Voltage 3 Volt
Input Max Voltage 38 Volt
Output Min 1.25 Volt
Output Max 35 Volt
Frequency Min 150 kHz
Frequency Max 500 kHz
Efficiency (peak) 92 %
Output Current 3000 mA
Input Min Voltage 3 Volt
Input Max Voltage 38 Volt
Output Min 1.25 Volt
Output Max 35 Volt
Frequency Min 150 kHz
Frequency Max 500 kHz
Efficiency (peak) 92 %
On/Off Pin Yes
Error Flag Yes
SoftStart Yes
Sync Pin Yes
Inverting No
Flyback No
RegType Switching Regulator
Temperature Min -40 deg C
Temperature Max 125 deg C
Adjustable Output Yes
Adj Switch Frequency Yes
PWM Mode Current
Topology Buck
Special Features High efficiency sleep mode, 1.5% output voltage accuracy, Quiescent current 50uA
Step-Down Yes
Multiple Output Capability No
Output Power Undefined Watt
Output Voltage Undefined Volt
Output Range 1.25V to 35V
Switching Frequency Undefined kHz
Feedback Voltage 1.2 Volt
Regulator Family Undefined
AEC Q-100 Automotive Grade Undefined
Automotive Selection Guide Yes
PowerWise Yes
Synchronous Rectification No
View Using Catalog


Typical Performance

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  Additional Resources
Online Seminars Design Tools (see below)

Application Notes (see below)


Block Diagram

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Datasheet
RoHS Compliance Information Size in KbytesDate Click link below to Download
LM26003/LM26003Q 3A Switching Regulator with High Efficiency Sleep Mode 462 Kbytes 2-Mar-09 Download

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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
LM26003MHTSSOP EXP PAD20NOPB1260RoHS N/A Full productionN/A
Samples
Buy Now 		1K+$3.52rail
of
73		NSUZXYTT
LM26003
MH
6 weeksN/A
LM26003QMHTSSOP EXP PAD20NOPB1260RoHS N/A Full productionN/A
Samples1K+$3.69rail
of
73		NSUZXYTT
LM26003
QMH
6 weeksN/A
LM26003MHXTSSOP EXP PAD20NOPB1260RoHS N/A Full productionN/A
 
Buy Now 		1K+$3.52reel
of
2500		NSUZXYTT
LM26003
MH
6 weeksN/A
LM26003QMHXTSSOP EXP PAD20NOPB1260RoHS N/A Full productionN/A
 1K+$3.69reel
of
2500		NSUZXYTT
LM26003
QMH
6 weeksN/A
LM26003EVALLM26003 - 3A Switching Regulator with High Efficiency Sleep ModeFull productionN/A
 
Buy Now 		1+$62.001-
8 weeksN/A

General Description

The LM26003 is a switching regulator designed for the high efficiency requirements of applications with stand-by modes. The device features a low-current sleep mode to maintain efficiency under light-load conditions and current-mode control for accurate regulation over a wide input voltage range. Quiescent current is reduced to 10.8 µA typically in shutdown mode and less than 40 µA in sleep mode. Forced PWM mode is also available to disable sleep mode.

The LM26003 can deliver up to 3A of continuous load current with a fixed current limit, through the internal N-channel switch. The part has a wide input voltage range of 4.0V to 38V and can operate with input voltages as low as 3V during line transients.

Operating frequency is adjustable from 150 kHz to 500 kHz with a single resistor and can be synchronized to an external clock.

Other features include Power good, adjustable soft-start, enable pin, input under-voltage protection, and an internal bootstrap diode for reduced component count.

Reliability Metrics

Part Number Process EFR Reject EFR Sample Size PPM LTA Rejects LTA Device Hours FITS MTTF (Hours)
LM26003MHABCD15003152000373900011060951459
LM26003MHXABCD15003152000373900011060951459
LM26003QMHABCD15003152000373900011060951459
LM26003QMHXABCD15003152000373900011060951459

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.


Design Tools

TitleSize in Kbytes Date Click link below to Download    
Automotive Power Management Ÿ A Look at Very Low Standby Currents     View    

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Application Notes

TitleSize in Kbytes Date Click link below to Download
AN-1884: Application Note 1884 LM26003 Evaluation Board 507 Kbytes 28-Aug-08 Download

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More Application Notes

TitleSize in Kbytes Date Click link below to Download
AN-1454: Application Note 1454 LM26001 Evaluation Board 794 Kbytes 1-Sep-06 Download

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

[Information as of 4-Jul-2009]