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AC/DC & DC/DC converters (integrated FET)

LM5001

ACTIVE

3.1-75V Wide Vin, 1A Current Mode Non-Synchronous Switch Mode Regulator

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Data sheet

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LM51581 ACTIVE 1.5-A, 85-V, 2.2-MHz wide VIN boost, flyback, & SEPIC converter with dual random spread spectrum Newer device with higher Vout capability and higher switch current

LM5001

ACTIVE
Data sheet Order now

Product details

Rating Catalog Operating temperature range (°C) -40 to 125 Topology Boost, Flyback, Forward, SEPIC Type Converter Vin (min) (V) 3.1 Vin (max) (V) 75 Switching frequency (min) (kHz) 50 Switching frequency (max) (kHz) 1500 Features Enable, Frequency synchronization, Nonsynchronous rectification, UVLO adjustable Vout (min) (V) 1.26 Vout (max) (V) 75 Iq (typ) (µA) 3100 Duty cycle (max) (%) 85 Switch current limit (typ) (A) 1
Rating Catalog Operating temperature range (°C) -40 to 125 Topology Boost, Flyback, Forward, SEPIC Type Converter Vin (min) (V) 3.1 Vin (max) (V) 75 Switching frequency (min) (kHz) 50 Switching frequency (max) (kHz) 1500 Features Enable, Frequency synchronization, Nonsynchronous rectification, UVLO adjustable Vout (min) (V) 1.26 Vout (max) (V) 75 Iq (typ) (µA) 3100 Duty cycle (max) (%) 85 Switch current limit (typ) (A) 1
SOIC (D) 8 29.4 mm² 4.9 x 6 WSON (NGT) 8 16 mm² 4 x 4
  • AEC-Q100 Qualified (TJ = –40°C to 125°C)
  • Integrated 75-V N-Channel MOSFET
  • Ultra-Wide Input Voltage Range from
    3.1 V to 75 V
  • 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
  • AEC-Q100 Qualified (TJ = –40°C to 125°C)
  • Integrated 75-V N-Channel MOSFET
  • Ultra-Wide Input Voltage Range from
    3.1 V to 75 V
  • 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

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-V N-Channel MOSFET with a 1-A 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 1.5 MHz. The oscillator can also be synchronized to an external clock. Additional protection features include: current limit, thermal shutdown, undervoltage lockout and remote shutdown capability.

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-V N-Channel MOSFET with a 1-A 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 1.5 MHz. The oscillator can also be synchronized to an external clock. Additional protection features include: current limit, thermal shutdown, undervoltage lockout and remote shutdown capability.
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Technical documentation

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Type Title Date
* Data sheet LM5001x High-Voltage Switch-Mode Regulator datasheet (Rev. H) PDF | HTML 30 Jul 2015
Selection guide Power Management Guide 2018 (Rev. R) 25 Jun 2018
Technical article What is behind isolated DC/DC converter voltage regulation? PDF | HTML 31 Aug 2015
White paper How to design boost, SEPIC or flyback regulators with wide VIN power ICs 29 Jul 2014
White paper Wide VIN power management ICs simplify white paper (Rev. A) 19 Sep 2013
EVM User's guide AN-1588 LM5001 Evaluation Board (Rev. B) 30 Apr 2013
EVM User's guide AN-1630 LM5001 Non-Isolated Flyback Evaluation Board (Rev. B) 30 Apr 2013
EVM User's guide AN-1956 LM5001 Boost Evaluation Board (Rev. B) 30 Apr 2013
User guide Low Noise Split Rail Non-Isolated Boost + - 12V Power Supply User Guide 27 Jan 2012
User guide Small Split Rail Isolated + - 5V Power Supply Generator User Guide 27 Jan 2012
User guide ± 5V Isolated, Low Noise Split Rail Generator (0.25A, 2.5W total) User Guide 27 Jan 2012

Design & development

For additional terms or required resources, click any title below to view the detail page where available.

Evaluation board

LM5001BSTEVAL — LM5001BSTEVAL - Wide Vin Switch Mode Regulator Evaluation Module

The LM5001 boost evaluation board is designed to provide the design engineer with a fully functional power converter based on the boost topology to evaluate the LM5001 high voltage switch mode regulator. The performance of the evaluation board is as follows:

User guide: PDF
Not available on TI.com
Evaluation board

LM5001ISOEVAL — Wide Vin Switch Mode Regulator Evaluation Module

LM5001 High Voltage Switch Mode Regulator

User guide: PDF
Not available on TI.com
Evaluation board

LM5001NISOEVAL — LM5001 Wide Vin Non-Isolated Flyback Evaluation Board

The LM5001 non-isolated flyback evaluation board is designed to provide the design engineer with a fully functional non-isolated flyback power converter based on Current Mode Control to evaluate the LM5001 switching regulator IC. The evaluation board provides a 5V output with 1A current capability. (...)

User guide: PDF
Not available on TI.com
Simulation model

LM5001 PSpice Transient Model

SNVM540.ZIP (67 KB) - PSpice Model
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Simulation model

LM5001 TINA-TI Transient Reference Design

SNVM550.TSC (1083 KB) - TINA-TI Reference Design
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Simulation model

LM5001 TINA-TI Transient Spice Model

SNVM551.ZIP (18 KB) - TINA-TI Spice Model
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Simulation model

LM5001 Unencrypted PSpice Transient Model

SNVM921.ZIP (3 KB) - PSpice Model
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CAD/CAE symbol

Low Noise Split Rail Non-Isolated Boost + - 12V Power Supply CAD File

SNVC012.ZIP (586 KB)
Download
CAD/CAE symbol

Small Split Rail Isolated + - 5V Power Supply Generator CAD File

SNVC020.ZIP (307 KB)
Download
CAD/CAE symbol

± 5V Isolated, Low Noise Split Rail Generator (0.25A, 2.5W total) CAD Files

SNVC029.ZIP (207 KB)
Download
Calculation tool

FLYBUCK-FLYBACK-DESIGN-CALC — Flybuck / Flyback Calculator

This tool helps a power supply engineer to select the right isolated DC-DC topology based on the specifications. Depending on the topology chosen, the calculator also recommends the right IC for the design.

Supported products & hardware

Supported products & hardware

Products
AC/DC & DC/DC controllers (external FET)
LM3017 — High Efficiency Low-Side Controller with True Shutdown LM3478 — 2.97~40V Wide Input Range Boost/SEPIC/Flyback DC-DC Controller LM3478Q-Q1 — 40-V wide VIN low-side N-channel controller for switching regulators with 10-µA shutdown current LM3481 — 2.97V to 48V High-Efficiency Controller for Boost, SEPIC and Flyback LM3481-Q1 — 2.97-V to 48-V high-efficiency controller for boost, SEPIC and flyback, AEC-Q100 qualified LM3488 — 2.97V to 40V Wide Vin Low-Side N-Channel Controller for Switching Regulators LM3488Q-Q1 — 40-V wide VIN low-side N-channel controller for switching regulators with 5-µA shutdown current LM3524D — 40V, 0.2A 350KHz PWM controller LM3578A — 2-V to 40-VIN switching regulators in buck, boost, terminal, depending upon the application LM5020 — 13-100V Wide Vin, Current Mode PWM Boost, Flyback, Sepic Controller LM5022 — 6-60V Wide Vin, current mode boost, SEPIC and Flyback controller TL1451 — Dual Pulse-Width-Modulation Control Circuit TL1451A — 3.6V to 50V dual channel controller with Wide input voltage range TL1451A-EP — Enhanced Product Dual Pulse-Width-Modulation Control Circuits TL1451A-Q1 — 3.6-V to 50-V dual-channel PWM controller, AEC-Q100 qualified TL5001 — PWM Controller with wide input range, with ±5% tolerance on reference, operation –20°C to 85°C TL5001A — PWM Controller with wide input range, with ±3% tolerance on reference, operation –20°C to 85°C TL5001A-Q1 — PWM Controller with wide input range, with ±3% tolerance on reference, operation –20°C to 85°C TL5001M — PWM Controller with wide input range, with ±5% tolerance on reference, operation –55°C to 125°C TPS40210-Q1 — 4.5-V to 52-V wide input range current mode boost controller with 700-mV reference voltage TPS40211-Q1 — 4.5-V to 52-V wide input range current mode boost controller with 260-mV reference voltage TPS43000 — Multi-Topology (buck, boost, sepic) High Frequency DC/DC Controller TPS55010 — 2.95V To 6V Input, 2W, Isolated DC/DC Converter with Integrated FETS UC2572 — Negative output Flyback pulse width modulator
AC/DC & DC/DC converters (integrated FET)
LM25017 — 7.5-48V Wide Vin, 650mA Constant On-Time Synchronous Buck Regulator LM25018 — 7.5-48V Wide Vin, 300mA Constant On-Time Synchronous Buck Regulator LM25019 — 7.5-48V Wide Vin, 100mA Constant On-Time Synchronous Buck Regulator LM2577 — 3.5-V to 40-V, 3-A low component count step-up regulator LM2585 — 4-V to 40-V, 3-A step-up wide VIN flyback regulator LM2586 — 4-V to 40-V, 3-A step-up wide VIN flyback regulator with frequency synchronization LM2587 — 4V to 40V, 5A Step-Up Wide Vin Flyback Regulator LM2588 — 4-V to 40-V, 5-A step-up wide VIN flyback regulator with frequency synchronization LM2621 — 1.2V to 14V input voltage, 1A load current, step-up DC-DC LM2623 — 0.8V to 14V input voltage, 2A load current, step-up DC-DC LM2623-Q1 — 0.8-V to 14-V input voltage, 2-A load current, step-up DC/DC, AEC-Q100 qualified LM2735 — 520kHz/1.6MHz space efficient boost and SEPIC DC-DC regulator LM2735-Q1 — 520-kHz, 1.6-MHz space efficient boost and SEPIC DC/DC regulator, AEC-Q100 qualified LM34925 — 7.5-100V Wide Vin, 100mA Integrated Secondary Bias Regulator for Isolated DC/DC Converters LM34926 — 7.5-100V Wide Vin, 300mA Integrated Secondary Bias Regulator for Isolated DC/DC Converters LM34927 — 7.5-100V Wide Vin, 600mA Integrated Secondary Bias Regulator for Isolated DC/DC Converters LM5000 — 3.1-40V Wide Vin, 2A Current Mode Non-Synchronous Boost Regulator LM5001 — 3.1-75V Wide Vin, 1A Current Mode Non-Synchronous Switch Mode Regulator LM5001-Q1 — 3.1-V to 75-V wide VIN, 1-A current mode non-synchronous switch mode regulator LM5002 — 3.1-75V Wide Vin, 0.5A Current Mode Boost, Flyback, Sepic Converter LM5015 — 4.25-75V, Monolithic Two-Switch Forward DC-DC Regulator LM5017 — 7.5-100V Wide Vin, 600mA Constant On-Time Synchronous Buck Regulator LM5018 — 7.5-100V Wide Vin, 300mA Constant On-Time Synchronous Buck Regulator LM5019 — 7.5-100V Wide Vin, 100mA Constant On-Time Synchronous Buck Regulator LM5160 — LM5160 wide input 65V, 2A synchronous buck/Fly-Buck™ converter LM5160-Q1 — Wide Input 65V, 2A Synchronous Buck / Fly-Buck™ Converter LM5160A — LM5160A Wide Input 65V, 2A Synchronous Buck / Fly-Buck™ Converter LM5161 — Wide Input 4.5-V to 100-V, 1-A Synchronous Buck / Fly-Buck Converter LM78S40 — 1.5A Adjustable Step Up, Step Down or Inverting Regulator TPS55340 — 5-A, 40-V, wide VIN boost, flyback, & SEPIC converter TPS55340-EP — Enhanced integrated, 5-A, 40-V wide input range boost/SEPIC/flyback DC/DC regulator TPS55340-Q1 — Integrated, 5-A 40-V wide input range boost/SEPIC/flyback DC/DC regulator, AEC-Q100 qualified TPS61175 — 3-A ,40V High Voltage Boost Converter with Soft-start and Programmable Switching Frequency TPS61175-Q1 — 3-A, 40-V high voltage boost converter with soft-start and programmable switching frequency
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Reference designs

TIDA-01498 — 4W PLC Power Supply with Wide Input Voltage Range Reference Design

This reference design shows an alternative way for a non-isolated PLC power supply to generate a stable output voltage, which is in between the minimum and maximum input voltage. Although a buck boost topology is more commonly used, the coupled inductor single-ended primary-inductance converter (...)
Design guide: PDF
Schematic: PDF
Reference designs

TIDA-01214 — Isolated, High-Accuracy Analog Input Module Reference Design Using 16-Bit ADC and Digital Isolator

This reference design provides accurate measurements of AC voltage and current inputs using a precision 16-bit SAR ADC over a wide input range, covering protection and measurement range (including sampling requirements of IEC 61850-9-2), simplifying system design and improving trip time (...)
Design guide: PDF
Schematic: PDF
Reference designs

PMP30373 — Small Negative Bias Supply for Low Noise Applications Reference Design

This circuit reference design is realized in Cuk Topology. The output voltage is -12V / -15V. The output current of 200mA is possible over an input voltage range of 10V to 60V  (even with a low input voltage of 6V 140mA output current is possible).  The perfect switching behavior of the (...)
Test report: PDF
Schematic: PDF
Reference designs

TIDA-00500 — Capacitor-Based Backup Power Supply for PLC Modules Reference Design

TIDA-00500 is a reference design to provide power to load for short duration of time after a power interrupt has occurred. Traditionally Programmable Logic Controllers (PLCs) are equipped with a recharge battery source for alternative power. This battery source often suffers from drawbacks like (...)
Design guide: PDF
Schematic: PDF
Package Pins CAD symbols, footprints & 3D models
SOIC (D) 8 Ultra Librarian
WSON (NGT) 8 Ultra Librarian
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