Home Power management DC/DC switching regulators Step-up (boost) regulators Boost controllers (external switch)

LM5022

ACTIVE

6-60V Wide Vin, current mode boost, SEPIC and Flyback controller

A newer version of this product is available

open-in-new Compare alternates
Same functionality with different pin-out to the compared device
LM5156 ACTIVE 2.2-MHz wide VIN nonsynchronous boost, flyback, & SEPIC controller with dual random spread spectrum Up to 2.2-MHz Fsw, higher efficiency and up to 45-V input operating voltage.
Similar functionality to the compared device
LM5122 ACTIVE 3-65V Wide Vin, Current Mode Synchronous Boost Controller with Multiphase Capability This controller is intended for high-efficiency synchronous boost regulator applications.

Product details

Topology Boost, Flyback, Forward, SEPIC Vin (min) (V) 6 Vin (max) (V) 60 Vout (min) (V) 1.25 Vout (max) (V) 300 Regulated outputs (#) 1 Switching frequency (min) (kHz) 200 Switching frequency (max) (kHz) 2200 Iq (typ) (mA) 3.5 Features Enable, Frequency synchronization, Nonsynchronous rectification, UVLO adjustable Duty cycle (max) (%) 90 Rating Catalog Operating temperature range (°C) -40 to 125 Type Controller
Topology Boost, Flyback, Forward, SEPIC Vin (min) (V) 6 Vin (max) (V) 60 Vout (min) (V) 1.25 Vout (max) (V) 300 Regulated outputs (#) 1 Switching frequency (min) (kHz) 200 Switching frequency (max) (kHz) 2200 Iq (typ) (mA) 3.5 Features Enable, Frequency synchronization, Nonsynchronous rectification, UVLO adjustable Duty cycle (max) (%) 90 Rating Catalog Operating temperature range (°C) -40 to 125 Type Controller
VSSOP (DGS) 10 14.7 mm² 3 x 4.9
  • Internal 60-V start-up regulator
  • 1-A Peak MOSFET gate driver
  • VIN Range: 6 V to 60 V (operates down to 3 V after start-up)
  • Duty cycle limit of 90%
  • Programmable UVLO with hysteresis
  • Cycle-by-cycle current limit
  • External synchronizable (AC-coupled)
  • Single resistor oscillator frequency set
  • Slope compensation
  • Adjustable soft start
  • 10-Pin VSSOP package
  • Internal 60-V start-up regulator
  • 1-A Peak MOSFET gate driver
  • VIN Range: 6 V to 60 V (operates down to 3 V after start-up)
  • Duty cycle limit of 90%
  • Programmable UVLO with hysteresis
  • Cycle-by-cycle current limit
  • External synchronizable (AC-coupled)
  • Single resistor oscillator frequency set
  • Slope compensation
  • Adjustable soft start
  • 10-Pin VSSOP package

The LM5022 device is a high-voltage, low-side, N-channel MOSFET controller ideal for use in boost and SEPIC regulators. It contains all of the features required to implement single-ended primary topologies. Output voltage regulation is based on current-mode control, which eases the design of loop compensation while providing inherent input voltage feedforward. The LM5022 includes a start-up regulator that operates over a wide input range of 6 V to 60 V. The PWM controller is designed for high-speed capability including an oscillator frequency range up to 2.2 MHz and total propagation delays less than 100 ns. Additional features include an error amplifier, precision reference, line undervoltage lockout, cycle-by-cycle current limit, slope compensation, soft start, external synchronization capability, and thermal shutdown. The LM5022 is available in the 10-pin VSSOP package.

The LM5022 device is a high-voltage, low-side, N-channel MOSFET controller ideal for use in boost and SEPIC regulators. It contains all of the features required to implement single-ended primary topologies. Output voltage regulation is based on current-mode control, which eases the design of loop compensation while providing inherent input voltage feedforward. The LM5022 includes a start-up regulator that operates over a wide input range of 6 V to 60 V. The PWM controller is designed for high-speed capability including an oscillator frequency range up to 2.2 MHz and total propagation delays less than 100 ns. Additional features include an error amplifier, precision reference, line undervoltage lockout, cycle-by-cycle current limit, slope compensation, soft start, external synchronization capability, and thermal shutdown. The LM5022 is available in the 10-pin VSSOP package.

Download View video with transcript Video

Technical documentation

star =Top documentation for this product selected by TI
No results found. Please clear your search and try again.
View all 10
Type Title Date
* Data sheet LM5022 60-V Low-Side Controller for Boost and SEPIC datasheet (Rev. J) PDF | HTML 21 May 2018
Technical article How to add overvoltage protection to a synchronous boost controller 17 Sep 2018
Selection guide Power Management Guide 2018 (Rev. R) 25 Jun 2018
Technical article What is behind isolated DC/DC converter voltage regulation? 31 Aug 2015
White paper How to design boost, SEPIC or flyback regulators with wide VIN power ICs 29 Jul 2014
Application note Demystifying Type II and Type III Compensators Using Op-Amp and OTA for DC/DC Co 11 Jul 2014
EVM User's guide AN-1557 LM5022 Evaluation Board (Rev. C) 06 May 2013
EVM User's guide AN-1605 LM5022 Boost LED Driver Evaluation Board (Rev. A) 06 May 2013
Application note AN-1696 Designing a Boost LED Driver Using the LM5022 (Rev. B) 06 May 2013
Application note AN-1656 Design Challenges of Switching LED Drivers (Rev. A) 03 May 2013

Design & development

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

Evaluation board

LM5022EVAL — 60V Wide Vin Low Side Controller for Boost Evaluation Board

The LM5022EVM evaluation module (EVM) is a fixed frequency (500-kHz) non-synchronous boost converter providing fixed 40.0-V output at up to 500 mA from a 9-V to 16-V input. The EVM is designed to start up from a single supply, with no additional bias voltage required for start-up. The module uses (...)

User guide: PDF
Not available on TI.com
Simulation model

LM5022 PSpice Average Model (Rev. A)

SNVM337A.ZIP (58 KB) - PSpice Model
Simulation model

LM5022 PSpice Transient Model (Rev. B)

SNVM336B.ZIP (168 KB) - PSpice Model
Simulation model

LM5022 TINA-TI Average Reference Design (Rev. A)

SNVM447A.TSC (3359 KB) - TINA-TI Reference Design
Simulation model

LM5022 TINA-TI Average Spice Model (Rev. A)

SNVM448A.ZIP (9 KB) - TINA-TI Spice Model
Simulation model

LM5022 TINA-TI Boost Load Transient Reference Design

SNVM450.TSC (144 KB) - TINA-TI Reference Design
Simulation model

LM5022 TINA-TI Boost Startup Reference Design

SNVM449.TSC (144 KB) - TINA-TI Reference Design
Simulation model

LM5022 TINA-TI Flyback Transient Reference Design

SNVMB66.TSC (158 KB) - TINA-TI Reference Design
Simulation model

LM5022 TINA-TI Transient Spice Model (Rev. A)

SNVM451A.ZIP (12 KB) - TINA-TI Spice Model
Simulation model

LM5022 Unencrypted PSpice Average Model (Rev. A)

SNVMAF7A.ZIP (1 KB) - PSpice Model
Simulation model

LM5022 Unencrypted PSpice Transient Model (Rev. B)

SNVMAF6B.ZIP (4 KB) - PSpice Model
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.
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 (...)

Many TI reference designs include the LM5022

Use our reference design selection tool to review and identify designs that best match your application and parameters.

Package Pins Download
VSSOP (DGS) 10 View options

Ordering & quality

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

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