Product details

Vin (Min) (V) 4.25 Vin (Max) (V) 75 Vout (Min) (V) 1.26 Vout (Max) (V) 37 Iout (Max) (A) 3 Iq (Typ) (uA) 110 Switching frequency (Min) (kHz) 200 Switching frequency (Max) (kHz) 750 Features Enable, Frequency Synchronization Operating temperature range (C) -40 to 125 Rating Catalog Regulated outputs (#) 1
Vin (Min) (V) 4.25 Vin (Max) (V) 75 Vout (Min) (V) 1.26 Vout (Max) (V) 37 Iout (Max) (A) 3 Iq (Typ) (uA) 110 Switching frequency (Min) (kHz) 200 Switching frequency (Max) (kHz) 750 Features Enable, Frequency Synchronization Operating temperature range (C) -40 to 125 Rating Catalog Regulated outputs (#) 1
HTSSOP (PWP) 14 22 mm² 5 x 4.4
  • Dual Integrated 75V N-Channel MOSFETs
  • Ultra-Wide Input Voltage Range: 4.25V to 75V
  • Integrated High Voltage Bias Regulator
  • Adjustable Output Voltage
  • 1.5% Feedback Reference Accuracy
  • Current Mode Control with Selectable Compensation
  • Wide Bandwidth Error Amplifier
  • Integrated Current Sensing and Limiting
  • 50% Maximum Duty Cycle Limit
  • Single Resistor Oscillator Programming
  • Oscillator Synchronization Capability
  • Programmable Soft-Start
  • Enable / Under-Voltage Lockout (UVLO) Pin
  • Thermal Shutdown

Package

  • HTSSOP-14EP (Exposed Pad)

All trademarks are the property of their respective owners.

  • Dual Integrated 75V N-Channel MOSFETs
  • Ultra-Wide Input Voltage Range: 4.25V to 75V
  • Integrated High Voltage Bias Regulator
  • Adjustable Output Voltage
  • 1.5% Feedback Reference Accuracy
  • Current Mode Control with Selectable Compensation
  • Wide Bandwidth Error Amplifier
  • Integrated Current Sensing and Limiting
  • 50% Maximum Duty Cycle Limit
  • Single Resistor Oscillator Programming
  • Oscillator Synchronization Capability
  • Programmable Soft-Start
  • Enable / Under-Voltage Lockout (UVLO) Pin
  • Thermal Shutdown

Package

  • HTSSOP-14EP (Exposed Pad)

All trademarks are the property of their respective owners.

The LM5015 high voltage switch mode regulator features all the functions necessary to implement efficient high voltage Two-Switch Forward and Two-Switch Flyback regulators, using a minimum of external components. This easy to use regulator integrates high side and low side 75 Volt N-Channel MOSFETs with a minimum 1 Amp peak current limit. The voltage across the MOSFETs employed in the two-switch topology is clamped to the input voltage, allowing the input voltage range to approach the rating of the MOSFETs. The regulator control method is based on current mode control providing inherent ease of loop compensation and line feed-forward for superior rejection of input transients.

The operating frequency is set with a single resistor and is programmable up to 750 kHz. The oscillator can also be synchronized to an external clock. Additional protection features include cycle-by-cycle current limiting, thermal shutdown, under-voltage lockout and remote shutdown capability. The device is available in the HTSSOP-14EP package featuring an exposed die attach pad to enhance thermal dissipation.

The LM5015 high voltage switch mode regulator features all the functions necessary to implement efficient high voltage Two-Switch Forward and Two-Switch Flyback regulators, using a minimum of external components. This easy to use regulator integrates high side and low side 75 Volt N-Channel MOSFETs with a minimum 1 Amp peak current limit. The voltage across the MOSFETs employed in the two-switch topology is clamped to the input voltage, allowing the input voltage range to approach the rating of the MOSFETs. The regulator control method is based on current mode control providing inherent ease of loop compensation and line feed-forward for superior rejection of input transients.

The operating frequency is set with a single resistor and is programmable up to 750 kHz. The oscillator can also be synchronized to an external clock. Additional protection features include cycle-by-cycle current limiting, thermal shutdown, under-voltage lockout and remote shutdown capability. The device is available in the HTSSOP-14EP package featuring an exposed die attach pad to enhance thermal dissipation.

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Technical documentation

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Type Title Date
* Data sheet LM5015 High Voltage Monolithic Two-Switch Forward DC-DC Regulator datasheet (Rev. C) 29 Mar 2013
Technical article Minimize the impact of the MLCC shortage on your power application 29 Mar 2019
Selection guide Power Management Guide 2018 (Rev. R) 25 Jun 2018
Application note Improving the Performance of Traditional Flyback-Topology With Two-Switch –Appro 22 Jul 2014
EVM User's guide LM5015 Isolated Two-Switch DC-DC Regulator Evaluation Board (Rev. A) 30 Apr 2013
EVM User's guide LM5015 Non-Isolated Two-Switch DC-DC Regulator Evaluation Board (Rev. A) 30 Apr 2013
More literature LM5015 Isolated Quickstart Design Spreadsheet 26 Jan 2012
More literature LM5015 Non Isolated Quickstart Design Spreadsheet 26 Jan 2012

Design & development

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

Evaluation board

LM5015ISOEVAL — High Voltage Monolithic Two-Switch Forward Isolated DC-DC Converter Evaluation Board

High Voltage Monolithic Two-Switch Forward Isolated DC-DC Converter Evaluation Board
Not available on TI.com
Evaluation board

LM5015NISOEVAL — High Voltage Monolithic Two-Switch Forward DC-DC Converter Evaluation Board

The LM5015 Non-Isolated DC-DC Regulator evaluation board provides a low cost and fully functional DC-DC regulator without employing any discrete power MOSFET. The evaluation board can be configured as either a Non-Isolated Two-Switch Forward DC-DC Regulator, or a Two-Switch Flyback DC-DC Regulator. (...)

Not available on TI.com
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 (...)
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.
Calculation tool

LM5015ISOLATED-CALC — LM5015 Isolated Quickstart Design Spreadsheet

Calculation tool

LM5015NON-ISOLATED-CALC — LM5015 Non Isolated Quickstart Design Spreadsheet

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HTSSOP (PWP) 14 View options

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