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A newer version of this product is available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
This product continues to be available for existing customers. New designs should consider an alternate product.
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.
LM5156H ACTIVE 2.2-MHz wide VIN nonsynchronous boost, flyback, & SEPIC controller with dual random spread spectrum A newer device with higher efficiency, spread spectrum in HTSSOP package.
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

Vin (min) (V) 6 Vin (max) (V) 60 Operating temperature range (°C) -40 to 125 Control mode current mode Topology Boost, Flyback, Forward, SEPIC Rating Catalog Vout (min) (V) 1.25 Vout (max) (V) 300 Features Enable, Frequency synchronization, Nonsynchronous rectification, UVLO adjustable Iq (typ) (µA) 3500 Duty cycle (max) (%) 90
Vin (min) (V) 6 Vin (max) (V) 60 Operating temperature range (°C) -40 to 125 Control mode current mode Topology Boost, Flyback, Forward, SEPIC Rating Catalog Vout (min) (V) 1.25 Vout (max) (V) 300 Features Enable, Frequency synchronization, Nonsynchronous rectification, UVLO adjustable Iq (typ) (µA) 3500 Duty cycle (max) (%) 90
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.

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Technical documentation

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Type Title Date
* Data sheet LM5022 60-V Low-Side Controller for Boost and SEPIC datasheet (Rev. J) PDF | HTML 21 May 2018
Selection guide Power Management Guide 2018 (Rev. R) 25 Jun 2018
Technical article What is behind isolated DC/DC converter voltage regulation? PDF | HTML 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 Flybuck / Flyback Calculator

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.

Supported products & hardware

Supported products & hardware

Products
AC/DC & DC/DC controllers (external FET)
LM3017 High Efficiency Low-Side Controller with True Shutdown LM3478 2.97~40V Wide Input Range Boost/SEPIC/Flyback DC-DC Controller LM3478Q-Q1 40-V wide VIN low-side N-channel controller for switching regulators with 10-µA shutdown current LM3481 2.97V to 48V High-Efficiency Controller for Boost, SEPIC and Flyback LM3481-Q1 2.97-V to 48-V high-efficiency controller for boost, SEPIC and flyback, AEC-Q100 qualified LM3488 2.97V to 40V Wide Vin Low-Side N-Channel Controller for Switching Regulators LM3488Q-Q1 40-V wide VIN low-side N-channel controller for switching regulators with 5-µA shutdown current LM3524D 40V, 0.2A 350KHz PWM controller LM3578A 2-V to 40-VIN switching regulators in buck, boost, terminal, depending upon the application LM5020 13-100V Wide Vin, Current Mode PWM Boost, Flyback, Sepic Controller LM5022 6-60V Wide Vin, current mode boost, SEPIC and Flyback controller TL1451 Dual Pulse-Width-Modulation Control Circuit TL1451A 3.6V to 50V dual channel controller with Wide input voltage range TL1451A-EP Enhanced Product Dual Pulse-Width-Modulation Control Circuits TL1451A-Q1 3.6-V to 50-V dual-channel PWM controller, AEC-Q100 qualified TL5001 PWM Controller with wide input range, with ±5% tolerance on reference, operation –20°C to 85°C TL5001A PWM Controller with wide input range, with ±3% tolerance on reference, operation –20°C to 85°C TL5001A-Q1 PWM Controller with wide input range, with ±3% tolerance on reference, operation –20°C to 85°C TL5001M PWM Controller with wide input range, with ±5% tolerance on reference, operation –55°C to 125°C TPS40210-Q1 4.5-V to 52-V wide input range current mode boost controller with 700-mV reference voltage TPS40211-Q1 4.5-V to 52-V wide input range current mode boost controller with 260-mV reference voltage TPS43000 Multi-Topology (buck, boost, sepic) High Frequency DC/DC Controller TPS55010 2.95V To 6V Input, 2W, Isolated DC/DC Converter with Integrated FETS UC2572 Negative output Flyback pulse width modulator
AC/DC & DC/DC converters (integrated FET)
LM25017 7.5-48V Wide Vin, 650mA Constant On-Time Synchronous Buck Regulator LM25018 7.5-48V Wide Vin, 300mA Constant On-Time Synchronous Buck Regulator LM25019 7.5-48V Wide Vin, 100mA Constant On-Time Synchronous Buck Regulator LM2577 3.5-V to 40-V, 3-A low component count step-up regulator LM2585 4-V to 40-V, 3-A step-up wide VIN flyback regulator LM2586 4-V to 40-V, 3-A step-up wide VIN flyback regulator with frequency synchronization LM2587 4V to 40V, 5A Step-Up Wide Vin Flyback Regulator LM2588 4-V to 40-V, 5-A step-up wide VIN flyback regulator with frequency synchronization LM2621 1.2V to 14V input voltage, 1A load current, step-up DC-DC LM2623 0.8V to 14V input voltage, 2A load current, step-up DC-DC LM2623-Q1 0.8-V to 14-V input voltage, 2-A load current, step-up DC/DC, AEC-Q100 qualified LM2735 520kHz/1.6MHz space efficient boost and SEPIC DC-DC regulator LM2735-Q1 520-kHz, 1.6-MHz space efficient boost and SEPIC DC/DC regulator, AEC-Q100 qualified LM34925 7.5-100V Wide Vin, 100mA Integrated Secondary Bias Regulator for Isolated DC/DC Converters LM34926 7.5-100V Wide Vin, 300mA Integrated Secondary Bias Regulator for Isolated DC/DC Converters LM34927 7.5-100V Wide Vin, 600mA Integrated Secondary Bias Regulator for Isolated DC/DC Converters LM5000 3.1-40V Wide Vin, 2A Current Mode Non-Synchronous Boost Regulator LM5001 3.1-75V Wide Vin, 1A Current Mode Non-Synchronous Switch Mode Regulator LM5001-Q1 3.1-V to 75-V wide VIN, 1-A current mode non-synchronous switch mode regulator LM5002 3.1-75V Wide Vin, 0.5A Current Mode Boost, Flyback, Sepic Converter LM5015 4.25-75V, Monolithic Two-Switch Forward DC-DC Regulator LM5017 7.5-100V Wide Vin, 600mA Constant On-Time Synchronous Buck Regulator LM5018 7.5-100V Wide Vin, 300mA Constant On-Time Synchronous Buck Regulator LM5019 7.5-100V Wide Vin, 100mA Constant On-Time Synchronous Buck Regulator LM5160 LM5160 wide input 65V, 2A synchronous buck/Fly-Buck™ converter LM5160-Q1 Wide Input 65V, 2A Synchronous Buck / Fly-Buck™ Converter LM5160A LM5160A Wide Input 65V, 2A Synchronous Buck / Fly-Buck™ Converter LM5161 Wide Input 4.5-V to 100-V, 1-A Synchronous Buck / Fly-Buck Converter LM78S40 1.5A Adjustable Step Up, Step Down or Inverting Regulator TPS55340 5-A, 40-V, wide VIN boost, flyback, & SEPIC converter TPS55340-EP Enhanced integrated, 5-A, 40-V wide input range boost/SEPIC/flyback DC/DC regulator TPS55340-Q1 Integrated, 5-A 40-V wide input range boost/SEPIC/flyback DC/DC regulator, AEC-Q100 qualified TPS61175 3-A ,40V High Voltage Boost Converter with Soft-start and Programmable Switching Frequency TPS61175-Q1 3-A, 40-V high voltage boost converter with soft-start and programmable switching frequency

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