LM5001 - High Voltage Switch Mode Regulator

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

Features
Integrated 75 volt N-Channel MOSFET
Ultra-wide input voltage range from 3.1V to 75V
Integrated high voltage bias regulator
Adjustable output voltage
1.5% output voltage accuracy
Current mode control with selectable compensation
Wide bandwidth error amplifier
Integrated current sensing and limiting
Integrated slope compensation
85% maximum duty cycle limit
Single resistor oscillator programming
Oscillator synchronization capability
Enable / Undervoltage Lockout (UVLO) pin
Thermal shutdown

General Description


The LM5001 high voltage switch mode regulator features all of the functions necessary to implement efficient high voltage Boost, Flyback, SEPIC and Forward converters, using few external components. More...


  Typical Application
click for larger image


Parametric Table     expand
Parametric Table    collapse
Switch Current 1 Amp
Input Min Voltage 3.1 Volt
Input Max Voltage 75 Volt
Feedback Voltage 1.260 Volt
Frequency Max 1500 kHz
Switch Current 1 Amp
Input Min Voltage 3.1 Volt
Input Max Voltage 75 Volt
Feedback Voltage 1.260 Volt
Frequency Max 1500 kHz
Efficiency (peak) 96 %
Sync Pin Yes
Adj Switch Frequency Yes
Frequency Min 50 kHz
On/Off Pin Yes
Error Flag No
SoftStart No
PWM Mode Current Mode
Topology Boost, Flyback, Forward, SEPIC
Step-Up Yes
Inverting No
Flyback Yes
RegType Switching Regulator
Adjustable Output Yes
Temperature Min -40 deg C
Temperature Max +125 deg C
Automotive Selection Guide Yes
View Using Catalog


Typical Performance


click for larger image


  Also Recommended
LM50001.5A 75V FET Boost Regulator
LM50020.5A 75V FET Version
LM5020100V Current Mode PWM Boost - Flyback Controller

Additional Resources


Design Tools (see below)

Application Notes (see below)


Block Diagram


click for larger image



Datasheet
RoHS Compliance Information Size in KbytesDate Click link below to Download
LM5001 High Voltage Switch Mode Regulator 362 Kbytes 24-Aug-07 View Online
Download
LM5001 High Voltage Switch Mode Regulator (Japanese)
545 Kbytes   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
LM5001ISOEVALHigh Voltage Switch Mode RegulatorFull productionN/A
 
Buy Now
1+$72.001-
8 weeksN/A
LM5001NISOEVALLM5001 Non-Isolated Flyback Evaluation BoardFull productionN/A
 
Buy Now
1+$65.001-
8 weeksN/A
LM5001MASOIC NARROW8NOPB1260RoHS Download Full productionN/A
Samples
Buy Now
1K+$1.50rail
of
95
NSZXTT
L5001
MA
6 weeks500
LM5001MAXSOIC NARROW8NOPB1260RoHS Download Full productionN/A
 
Buy Now
1K+$1.50reel
of
2500
NSZXTT
L5001
MA
6 weeks5000
LM5001SDLLP8NOPB1260RoHS Download Full productionN/A
Samples
Buy Now
1K+$1.50reel
of
1000
NS
UZXYTT
LM5001
6 weeksN/A
LM5001SDXLLP8NOPB1260RoHS Download Full productionN/A
 
Buy Now
1K+$1.50reel
of
4500
NS
UZXYTT
LM5001
6 weeksN/A

General Description


The LM5001 high voltage switch mode regulator features all of the functions necessary to implement efficient high voltage Boost, Flyback, SEPIC and Forward converters, using few external components. This easy to use regulator integrates a 75 Volt N-Channel MOSFET with a 1 Amp peak current limit. Current mode control provides inherently simple loop compensation and line-voltage feed-forward for superior rejection of input transients. The switching frequency is set with a single resistor and is programmable up to 1.5MHz. The oscillator can also be synchronized to an external clock. Additional protection features include: current limit, thermal shutdown, under-voltage lockout and remote shutdown capability. The device is available in both SO-8 and LLP-8 packages.

Design Tools


TitleSize in Kbytes Date Click link below to Download    
Practical Implementation of Negative-Input, Negative-Output Step-Down Switching Converters     View    

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Reference Designs
RD-171 - ± 5V Isolated, Low Noise Split Rail Generator (0.25A, 2.5W total)

Application Notes


TitleSize in Kbytes Date Click link below to Download
AN-1588: Application Note 1588 LM5001 Evaluation Board 658 Kbytes 18-Mar-07 Download
AN-1630: Application Note 1630 LM5001 Non-Isolated Flyback Evaluation Board 240 Kbytes 10-Dec-07 Download
AN-1889: Application Note 1889 How to Measure the Loop Transfer Function of Power Supplies 612 Kbytes 14-Oct-08 Download

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More Application Notes


TitleSize in Kbytes Date Click link below to Download
AN-1875: Application Note 1875 LM5073HE Evaluation Board With Active Bridge 230 Kbytes 2-Jul-08 Download
AN-1319: Application Note 1319 Analysis and Design of a Hysteretic Constant Frequency Buck Regulator Using the LM5007 426 Kbytes 25-May-04 Download
AN-1319 (Chinese): Application Note 1319 Analysis and Design of a Hysteretic Constant Frequency Buck Regulator Using the LM5007
484 Kbytes  
AN-1820: Application Note 1820 LM5032 Interleaved Boost Converter 1942 Kbytes 30-May-08 Download
AN-1481: Application Note 1481 Controlling Output Ripple and Achieving ESR Independence in Constant On-Time (COT) Regulator Designs 574 Kbytes 27-Sep-06 Download
AN-1481 (Japanese): Application Note 1481 Controlling Output Ripple and Achieving ESR Independence in Constant On-Time (COT) Regulator Designs
220 Kbytes   Download
AN-1481 (Chinese): Application Note 1481 Controlling Output Ripple and Achieving ESR Independence in Constant On-Time (COT) Regulator Designs
421 Kbytes  
AN-1445: Application Note 1445 LM5009 Evaluation Board 479 Kbytes 23-Jul-08 Download
AN-1748: Application Note 1748 LM5005 Evaluation Board 159 Kbytes 7-Nov-07 Download
AN-1574: Application Note 1574 LM5073 Evaluation Board 464 Kbytes 24-Apr-07 Download
AN-1634: Application Note 1634 Starting Up A Buck Regulator With a Voltage Present At V OUT 71 Kbytes 17-May-07 Download
AN-1634 (Japanese): Application Note 1634 Starting Up A Buck Regulator With a Voltage Present At V OUT
95 Kbytes   Download
AN-1634 (Chinese): Application Note 1634 Starting Up A Buck Regulator With a Voltage Present At V OUT
222 Kbytes  
AN-1330: Application Note 1330 LM5008 Evaluation Board 334 Kbytes 7-May-04 Download
AN-1298: Application Note 1298 LM5007 Evaluation Board 313 Kbytes 29-Jan-04 Download
AN-1736: Application Note 1736 LM3433 HB LED Driver Evaluation Kit 1011 Kbytes 4-Feb-08 Download
AN-1793: Application Note 1793 LM3433 4A to 20A LED Driver Evaluation Board 701 Kbytes 25-Aug-08 Download

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[Information as of 7-Jan-2009]