LM5022

ACTIVE

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

Top

Product details

Parameters

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, UVLO Adjustable Duty cycle (Max) (%) 90 Rating Catalog Operating temperature range (C) -40 to 125 open-in-new Find other Boost controllers (external switch)

Package | Pins | Size

VSSOP (DGS) 10 9 mm² 3 x 3 open-in-new Find other Boost controllers (external switch)

Features

  • 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
open-in-new Find other Boost controllers (external switch)

Description

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.

open-in-new Find other Boost controllers (external switch)
Download
Similar products you might be interested in
open-in-new Compare products
Same functionality with different pin-out to the compared device.
NEW 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, and an 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.

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) May 21, 2018
Technical article How to add overvoltage protection to a synchronous boost controller Sep. 17, 2018
Selection guide Power Management Guide 2018 (Rev. R) Jun. 25, 2018
Technical article What is behind isolated DC/DC converter voltage regulation? Aug. 31, 2015
White paper How to design boost, SEPIC or flyback regulators with wide VIN power ICs Jul. 29, 2014
Application note Demystifying Type II and Type III Compensators Using Op-Amp and OTA for DC/DC Co Jul. 11, 2014
User guide AN-1557 LM5022 Evaluation Board (Rev. C) May 06, 2013
User guide AN-1605 LM5022 Boost LED Driver Evaluation Board (Rev. A) May 06, 2013
Application note AN-1696 Designing a Boost LED Driver Using the LM5022 (Rev. B) May 06, 2013
Application note AN-1656 Design Challenges of Switching LED Drivers (Rev. A) May 03, 2013

Design & development

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

Hardware development

EVALUATION BOARD Download
document-generic User guide
49
Description

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 (...)

Features
  • Internal 60V Startup Regulator
  • 1A Peak MOSFET Gate Driver
  • VIN Range 6V to 60V
  • Duty Cycle Limit of 90%
  • Programmable UVLO with Hysteresis
  • Cycle-by-Cycle Current Limit
  • External Sychronizable (AC-coupled)
  • Single Resistor Oscillator Frequency Set
  • Slope Compensation
  • Adjustable Soft-start
  • MSOP-10 Package

(...)

Design tools & simulation

SIMULATION MODEL Download
SNVM336B.ZIP (168 KB) - PSpice Model
SIMULATION MODEL Download
SNVM337A.ZIP (58 KB) - PSpice Model
SIMULATION MODEL Download
SNVM447A.TSC (3359 KB) - TINA-TI Reference Design
SIMULATION MODEL Download
SNVM448A.ZIP (9 KB) - TINA-TI Spice Model
SIMULATION MODEL Download
SNVM449.TSC (144 KB) - TINA-TI Reference Design
SIMULATION MODEL Download
SNVM450.TSC (144 KB) - TINA-TI Reference Design
SIMULATION MODEL Download
SNVM451A.ZIP (12 KB) - TINA-TI Spice Model
SIMULATION MODEL Download
SNVMAF6B.ZIP (4 KB) - PSpice Model
SIMULATION MODEL Download
SNVMAF7A.ZIP (1 KB) - PSpice Model
SIMULATION MODEL Download
SNVMB66.TSC (158 KB) - TINA-TI Reference Design
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 (...)

Reference designs

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.

CAD/CAE symbols

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