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Boost converters (integrated switch)

LM5001-Q1

ACTIVE

3.1-V to 75-V wide VIN, 1-A current mode non-synchronous switch mode regulator

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Data sheet

LM5001-Q1

ACTIVE
Data sheet Order now

Product details

Topology Boost, Flyback, Forward, SEPIC Vin (min) (V) 3.1 Vin (max) (V) 75 Vout (min) (V) 1.26 Vout (max) (V) 75 Switch current limit (typ) (A) 1 Type Converter Regulated outputs (#) 1 Switching frequency (min) (kHz) 50 Switching frequency (max) (kHz) 1500 Iq (typ) (mA) 3.1 Features Enable, Frequency synchronization, Nonsynchronous rectification, UVLO adjustable Duty cycle (max) (%) 85 Operating temperature range (°C) -40 to 125 Rating Automotive
Topology Boost, Flyback, Forward, SEPIC Vin (min) (V) 3.1 Vin (max) (V) 75 Vout (min) (V) 1.26 Vout (max) (V) 75 Switch current limit (typ) (A) 1 Type Converter Regulated outputs (#) 1 Switching frequency (min) (kHz) 50 Switching frequency (max) (kHz) 1500 Iq (typ) (mA) 3.1 Features Enable, Frequency synchronization, Nonsynchronous rectification, UVLO adjustable Duty cycle (max) (%) 85 Operating temperature range (°C) -40 to 125 Rating Automotive
SOIC (D) 8 29.4 mm² 4.9 x 6
  • 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
Functional safety information LM5001-Q1 Functional Safety, FIT Rate, Failure Mode Distribution and Pin FMA PDF | HTML 09 Dec 2021

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)
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CAD/CAE symbol

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

SNVC020.ZIP (307 KB)
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CAD/CAE symbol

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

SNVC029.ZIP (207 KB)
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Calculation tool

FLYBUCK-FLYBACK-DESIGN-CALC — Fly-Buck and Flyback Topology Selector

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.
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Simulation tool

PSPICE-FOR-TI — PSpice® for TI design and simulation tool

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 (...)
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Reference designs

PMP22396 — 2460-W bidirectional boost converter reference design for automotive applications

This reference design is a 2460-W bidirectional boost converter for automotive applications. The circuit is powered from the nominal 12-V battery to provide an output voltage of 48 V at 51.25 A. The design uses two dual-phase synchronous bidirectional controllers operating at a switching frequency (...)
Test report: PDF
Schematic: PDF
Reference designs

PMP30781 — Tiny automotive 2-W bias power supply reference design

This reference design provides a tiny auxiliary +12-V supply for general purpose. In this case, SEPIC topology supports wide input range from 6 V to 60 V. Even at inputs as low as 3.5 V, this reference design is able to provide half of the output power. Another benefit of SEPIC is low reflected (...)
Test report: PDF
Schematic: PDF
Reference designs

PMP30602 — Tiny -60-V cuk reference design for automotive applications

This tiny reference design delivers -60-V output voltage from an input voltage around 5 V. It is typically generated by an automotive pre regulator. The LM5001-Q1 is the controller, TLV271-Q1 converts the negative output voltage to be suitable for positive feedback (FB) input of the (...)
Test report: PDF
Schematic: PDF
Reference designs

PMP9487 — CISPR 25 Class 5 Rated Multi-Output Power Supply for Automotive Cluster in Infotainment System

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 (...)
Test report: PDF
Schematic: PDF
Reference designs

PMP9481 — CISPR 25 Class 5, 3-W SEPIC reference design for automotive infotainment display power

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.  (...)
Test report: PDF
Schematic: PDF
Reference designs

TIDA-00223 — Automotive Audio I2S over Coax Class D Amplifier Reference Design

This reference design is an I²S/TDM-based, low-cost, easy-to-use alternative to fiber optics/analog copper wire for connecting an automotive (sound) control panel to an output stage/power amplifier. Supporting I²S as well as TDM, it is capable of transmitting digital audio signal to 16 (...)
Design guide: PDF
Schematic: PDF
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