LM5001-Q1

ACTIVE

Automotive Grade 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) 225 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 Automotive open-in-new Find other Boost converters (integrated switch)

Package | Pins | Size

SOIC (D) 8 19 mm² 4.9 x 3.9 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.

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Technical documentation

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No results found. Please clear your search and try again. View all 2
Type Title Date
* Datasheet LM5001x High-Voltage Switch-Mode Regulator datasheet (Rev. H) Jul. 30, 2015
Selection guides Automotive wide VIN DC/DC brochure Jul. 08, 2014

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%

 

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
  • (...)
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

 

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 (...)
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
Tiny automotive 2-W bias power supply reference design
PMP30781 — 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 (...)
document-generic Schematic document-generic User guide
REFERENCE DESIGNS Download
Tiny -60-V cuk reference design for automotive applications
PMP30602 — 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 (...)
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
Automotive Audio I2S over Coax Class D Amplifier Reference Design
TIDA-00223 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 (...)
document-generic Schematic document-generic User guide

CAD/CAE symbols

Package Pins Download
SOIC (D) 8 View options

Ordering & quality

Support & training

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