LM5015

ACTIVE

4.25-75V, Monolithic Two-Switch Forward DC-DC Regulator

Top

Product details

Parameters

We are not able to display this information. Please refer to the product data sheet.

Package | Pins | Size

HTSSOP (PWP) 14 32 mm² 5 x 6.4 open-in-new Find other Buck converters (integrated switch)

Features

  • 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.

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

Description

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.

open-in-new Find other Buck converters (integrated switch)
Download

Technical documentation

= Top documentation for this product selected by TI
No results found. Please clear your search and try again. View all 8
Type Title Date
* Datasheet LM5015 High Voltage Monolithic Two-Switch Forward DC-DC Regulator datasheet (Rev. C) Mar. 29, 2013
Technical articles Minimize the impact of the MLCC shortage on your power application Mar. 29, 2019
Selection guide Power Management Guide 2018 (Rev. R) Jun. 25, 2018
Application note Improving the Performance of Traditional Flyback-Topology With Two-Switch –Appro Jul. 22, 2014
User guide LM5015 Isolated Two-Switch DC-DC Regulator Evaluation Board (Rev. A) Apr. 30, 2013
User guide LM5015 Non-Isolated Two-Switch DC-DC Regulator Evaluation Board (Rev. A) Apr. 30, 2013
More literature LM5015 Isolated Quickstart Design Spreadsheet Jan. 26, 2012
More literature LM5015 Non Isolated Quickstart Design Spreadsheet Jan. 26, 2012

Design & development

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

Hardware development

EVALUATION BOARD Download
75
Description
High Voltage Monolithic Two-Switch Forward Isolated DC-DC Converter Evaluation Board
Features
  • Input voltage: 36V to 72V
  • Isolated output voltage: 5V
  • Output current: 0A minimum, 2.5A nominal, and 3A maximum
  • Input UVLO threshold: 34V nominal
  • Measured efficiency: 86% (VIN = 48V, IOUT = 2.5A)
  • Switching frequency: 300 kHz
  • Ability to synchronize to external clock
  • Ability to be remote controlled (...)
EVALUATION BOARD Download
49
Description

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 (...)

Features
  • Input voltage: 36V to 72V
  • Isolated output voltage: 5V
  • Output current: 0A minimum, 2.5A nominal, and 3A maximum
  • Input UVLO threshold: 34V nominal
  • Measured efficiency: 86% (VIN = 48V, IOUT = 2.5A)
  • Switching frequency: 300 kHz
  • Ability to synchronize to external clock
  • Ability to be remote controlled (...)

Design tools & simulation

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 (...)
CALCULATION TOOL Download
CALCULATION TOOL Download

CAD/CAE symbols

Package Pins Download
HTSSOP (PWP) 14 View options

Ordering & quality

Recommended products may have parameters, evaluation modules or reference designs related to this TI product.

Support & training

TI E2E™ forums with technical support from TI engineers

Content is provided "as is" by TI and community contributors and does not constitute TI specifications. See terms of use.

If you have questions about quality, packaging or ordering TI products, see TI support. ​​​​​​​​​​​​​​

Videos

Related videos