LM5001

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

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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 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
open-in-new Find other Boost converters (integrated switch)

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.

open-in-new Find other Boost converters (integrated switch)
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Technical documentation

Design & development

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

Hardware development

EVALUATION BOARD Download
document-generic User guide
99
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%

 

EVALUATION BOARD Download
document-generic User guide
75
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
  • (...)
EVALUATION BOARD Download
document-generic User guide
75
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

 

Design tools & simulation

SIMULATION MODEL Download
SNVM540.ZIP (67 KB) - PSpice Model
SIMULATION MODEL Download
SNVM550.TSC (1083 KB) - TINA-TI Reference Design
SIMULATION MODEL Download
SNVM551.ZIP (18 KB) - TINA-TI Spice Model
SIMULATION MODEL Download
SNVM921.ZIP (3 KB) - PSpice Model
SIMULATION TOOL Download
PSpice® for TI design and simulation tool
PSPICE-FOR-TI — PSpice® for TI is a design and simulation environment that helps evaluate functionality of analog circuits. This full-featured, design and simulation suite uses an analog analysis engine from Cadence®. Available at no cost, PSpice for TI includes one of the largest model libraries in the (...)
Features
  • Leverages Cadence PSpice Technology
  • Preinstalled library with a suite of digital models to enable worst-case timing analysis
  • Dynamic updates ensure you have access to most current device models
  • Optimized for simulation speed without loss of accuracy
  • Supports simultaneous analysis of multiple products
  • (...)
CALCULATION TOOL 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 (...)
CAD/CAE SYMBOL Download
SNVC012.ZIP (586 KB)
CAD/CAE SYMBOL Download
SNVC020.ZIP (307 KB)
CAD/CAE SYMBOL Download
SNVC029.ZIP (207 KB)

Reference designs

Many TI reference designs include the LM5001 Use our reference design selection tool to review and identify designs that best match your application and parameters.

CAD/CAE symbols

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

Ordering & quality

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  • REACH
  • Device marking
  • Lead finish/Ball material
  • MSL rating/Peak reflow
  • MTBF/FIT estimates
  • Material content
  • Qualification summary
  • Ongoing reliability monitoring

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