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LM5001

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

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

LM5001

ACTIVE
Data sheet Order now

Product details

Parameters

Vin (Min) (V) 3.1 Vin (Max) (V) 75 Vout (Min) (V) 1.26 Vout (Max) (V) 75 Switch current limit (Typ) (A) 1 Regulated outputs (#) 1 Switching frequency (Min) (kHz) 50 Switching frequency (Max) (kHz) 1500 Iq (Typ) (mA) 3.1 Features Enable, Frequency Synchronization, UVLO Adjustable Duty cycle (Max) (%) 85 Operating temperature range (C) -40 to 125 Type Converter Rating Catalog open-in-new Find other Boost converters (integrated switch)

Package | Pins | Size

SOIC (D) 8 19 mm² 4.9 x 3.9 WSON (NGT) 8 16 mm² 4 x 4 open-in-new Find other Boost converters (integrated switch)

Features

  • 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
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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-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

= Featured
No results found. Please clear your search and try again. View all 12
Type Title Date
* Datasheet LM5001x High-Voltage Switch-Mode Regulator datasheet (Rev. H) Jul. 30, 2015
Technical articles What is behind isolated DC/DC converter voltage regulation? Aug. 31, 2015
Technical articles Boost or not to boost - wide Vin boost power management ICs do much more Sep. 20, 2014
White papers How to design boost, SEPIC and flyback regulators with wide VIN boost pwr ICs Jul. 29, 2014
Selection guides Wide VIN DC/DC power solutions: industrial, automotive, and comms applications Jun. 06, 2014
White papers Wide VIN power management ICs simplify white paper (Rev. A) Sep. 19, 2013
User guides AN-1588 LM5001 Evaluation Board (Rev. B) Apr. 30, 2013
User guides AN-1630 LM5001 Non-Isolated Flyback Evaluation Board (Rev. B) Apr. 30, 2013
User guides AN-1956 LM5001 Boost Evaluation Board (Rev. B) Apr. 30, 2013
User guides Low Noise Split Rail Non-Isolated Boost + - 12V Power Supply User Guide Jan. 27, 2012
User guides Small Split Rail Isolated + - 5V Power Supply Generator User Guide Jan. 27, 2012
User guides ± 5V Isolated, Low Noise Split Rail Generator (0.25A, 2.5W total) User Guide Jan. 27, 2012

Design & development

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

Hardware development

EVALUATION BOARDS Download
document-generic User guide
$99.00
Description

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:

Features
  • Input operating range: 16 to 36V
  • Output Voltage: 48V
  • Output Current: 0 to 150 mA
  • Measured Efficiency: 91% @ 150 mA, 86% @ 75 mA
  • Frequency of Operation: 240 kHz
  • Board Size: 1.75 X 1.75 inches
  • Load Regulation: 1%
  • Line Regulation: 0.1%

 

View details
EVALUATION BOARDS Download
document-generic User guide
$75.00
Description

LM5001 High Voltage Switch Mode Regulator

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
  • (...)
View details
EVALUATION BOARDS Download
document-generic User guide
$75.00
Description

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 (...)

Features

Refer to the LM5001 datasheet for complete circuit design information.

  • Input Range: 16 to 42V
  • Output Voltage: 5V, 2%
  • Output Current: 0 to 1A
  • Frequency of Operation: 250 kHz
  • Board Size: 2.75 X 1.75 X 0.6 inches
  • Load Regulation: 0.1%
  • Line Regulation: 0.1%
  • Over Current Limiting

 

View details

Design tools & simulation

SIMULATION MODELS Download
SNVM540.ZIP (67 KB) - PSpice Model
SIMULATION MODELS Download
SNVM550.TSC (1083 KB) - TINA-TI Reference Design
SIMULATION MODELS Download
SNVM551.ZIP (18 KB) - TINA-TI Spice Model
SIMULATION MODELS Download
SNVM921.ZIP (3 KB) - PSpice Model
CALCULATION TOOLS Download
Fly-Buck and Flyback Topology Selector
FLYBUCK-FLYBACK-DESIGN-CALC — 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.
Features
  • Features isolated topologies like Fly-Buck™, Fly-Buck-Boost, DCM and CCM Flyback
  • Capability to design up to 6 isolated outputs
  • Recommends ICs for desired application design
  • Incorporates loop compensation in designs
  • Compares efficiency, external component count and transformer currents for every topology (...)
View details
CAD/CAE SYMBOLS Download
SNVC012.ZIP (586 KB)
CAD/CAE SYMBOLS Download
SNVC020.ZIP (307 KB)
CAD/CAE SYMBOLS Download
SNVC029.ZIP (207 KB)

Reference designs

REFERENCE DESIGNS Download
4W PLC Power Supply with Wide Input Voltage Range Reference Design
TIDA-01498 — 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 (...)
document-generic Schematic document-generic User guide
REFERENCE DESIGNS Download
Isolated, High-Accuracy Analog Input Module Reference Design Using 16-Bit ADC and Digital Isolator
TIDA-01214 — 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 performance (...)
document-generic Schematic document-generic User guide
REFERENCE DESIGNS Download
Small Negative Bias Supply for Low Noise Applications Reference Design
PMP30373 — 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 (...)
document-generic Schematic document-generic User guide
REFERENCE DESIGNS Download
Non-Synchronous Flyback converter with dual-output (-5V@.25A)
PMP7901 — PMP7901 is a Non-Synchronous Flyback converter with an input of 8 volts to 18 volts. It has an Isolated dual-output of 5 volts and negative 5 volts at 0.25 Amps.
Design files
View details
REFERENCE DESIGNS Download
Capacitor-Based Backup Power Supply for PLC Modules Reference Design
TIDA-00500 — 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 (...)
document-generic Schematic document-generic User guide
REFERENCE DESIGNS Download
Sepic with Adjustable Output Voltage and Input Current Limit Reference Design
PMP10151 — This reference design provides an adjustable output voltage between 20V and 25V and an input voltage range of 10V to 14V. It also provides the functionality to limit the input current of the converter between 70mA and 135mA. The adjustable values are set by a VID interface which is either discrete (...)
document-generic Schematic document-generic User guide
REFERENCE DESIGNS Download
1.25W Isolated Flyback Converter for Analog/Digital Power
PMP7902 — PMP7902 is an Isolated Flyback converter utilizing the LM5001 non-synchronous current-mode regulator I.C.  The design accepts an input voltage of 4.5V to 5.5V and provides an isolated 5V output capable of supplying 0.25A of current to the load.  The design uses an off-the-shelf VERSAPAC (...)
document-generic Schematic document-generic User guide
REFERENCE DESIGNS Download
CISPR 25 Class 5 Rated Multi-Output Power Supply for Automotive Cluster in Infotainment System
PMP9487 — PMP9487 is a conducted EMI optimized (CISPR 25) 8W SEPIC converter for wide range Vin automotive infotainment cluster applications using the LM5001 regulator IC (used as SEPIC), LM46002 (used as buck) and LM2831Y regulator IC (used as buck).  The design accepts an input voltage of 6.5Vin to (...)
document-generic Schematic document-generic User guide
REFERENCE DESIGNS Download
CISPR 25 Class 5, 3-W SEPIC reference design for automotive infotainment display power
PMP9481 — PMP9481 is a conducted EMI optimized (CISPR 25 Class 5) 3W SEPIC converter for wide range Vin automotive applications using the LM5001 regulator IC.  The design accepts an input voltage of 6.5Vin to 20Vin and provides an output of 12Vout capable of supplying 0.25A of current to the load.  (...)
document-generic Schematic document-generic User guide
REFERENCE DESIGNS Download
4.5Vin to 5.5Vin; 80Vout @ 2mA; Coupled Inductor Non-Synchronous Boost Converter
PMP7962 — A coupled inductor non-synchronous boost converter that accepts an input voltage of 4.5Vin to 5.5Vin and provides an output of 80Vout capable of delivering 2mA. This design has a very high output-to-input voltage boost ratio.
Design files
View details
REFERENCE DESIGNS Download
Small Split Rail Isolated + - 5V Power Supply Generator
SMSPLITRAILISO-REF — A very low noise differential power supply for split rail systems requiring +5V and -5V (higher or lower voltage is possible). This design is fully isolated and capable of floating to over 500V differential from Vin to Vout (higher is possible). The LM5001 IC is a fully integrated flyback regulator (...)

CAD/CAE symbols

Package Pins Download
SOIC (D) 8 View options
WSON (NGT) 8 View options

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Training series

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Videos

Power Tips: Layout for a Boost Power Stage

This video shows a simplified schematic and PCB layout for a boost converter

Posted: 21-Jan-2016
Duration: 04:31

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