Product details

Vin (Min) (V) 3 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 Automotive Operating temperature range (C) -40 to 125
Vin (Min) (V) 3 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 Automotive Operating temperature range (C) -40 to 125
VSSOP (DGS) 10 9 mm² 3 x 3
  • AEC-Q100 Grade 1 Qualified with the following results:
    • Device Temperature Grade 1: -40°C to 125°C
      Ambient Operating Temperature Range
    • Device HBM ESD Classification Level 2
    • Device CDM ESD Classification Level C5
  • Internal 60-V Start-Up Regulator
  • 1-A Peak MOSFET Gate Driver
  • VIN Range: 6 V to 60 V
    (operate down to 3 V after startup)
  • Duty Cycle Limit of 90%
  • Programmable UVLO with Hysteresis
  • Cycle-by-Cycle Current Limit
  • Single Resistor Oscillator Frequency Set
  • Adjustable Switching Frequency to 2.2MHz
  • External Clock Synchronization
  • Slope Compensation
  • Adjustable Soft Start
  • 10-Pin VSSOP Package
  • AEC-Q100 Grade 1 Qualified with the following results:
    • Device Temperature Grade 1: -40°C to 125°C
      Ambient Operating Temperature Range
    • Device HBM ESD Classification Level 2
    • Device CDM ESD Classification Level C5
  • Internal 60-V Start-Up Regulator
  • 1-A Peak MOSFET Gate Driver
  • VIN Range: 6 V to 60 V
    (operate down to 3 V after startup)
  • Duty Cycle Limit of 90%
  • Programmable UVLO with Hysteresis
  • Cycle-by-Cycle Current Limit
  • Single Resistor Oscillator Frequency Set
  • Adjustable Switching Frequency to 2.2MHz
  • External Clock Synchronization
  • Slope Compensation
  • Adjustable Soft Start
  • 10-Pin VSSOP Package

The LM5022-Q1 is a high voltage low-side N-channel MOSFET controller ideal for use in boost and SEPIC regulators. It contains all of the features needed 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 feed-forward. The LM5022-Q1 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-Q1 is available in the 10-pin VSSOP package.

The LM5022-Q1 is a high voltage low-side N-channel MOSFET controller ideal for use in boost and SEPIC regulators. It contains all of the features needed 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 feed-forward. The LM5022-Q1 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-Q1 is available in the 10-pin VSSOP package.

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Technical documentation

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Type Title Date
* Data sheet LM5022-Q1 2.2MHz, 60 V Low-Side Controller For Boost and SEPIC datasheet 10 Mar 2016
Technical article How to add overvoltage protection to a synchronous boost controller 17 Sep 2018

Design & development

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

Simulation model

LM5022 PSpice Transient Model (Rev. B)

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

LM5022 PSpice Average Model (Rev. A)

SNVM337A.ZIP (58 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 Startup Reference Design

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

LM5022 TINA-TI Boost Load Transient Reference Design

SNVM450.TSC (144 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 Transient Model (Rev. B)

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

LM5022 Unencrypted PSpice Average Model (Rev. A)

SNVMAF7A.ZIP (1 KB) - PSpice Model
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 (...)
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PMP22021 — Compact isolated DC/DC flyback reference design

This reference design uses LM5022-Q1 to make an isolated 3.3-V output capable of 1.1-A from a 9-V to 15-V input. All components are placed on one side of the board to reduce assembly complexity and cost. A secondary filter reduces the output ripple to under 30-mV peak-to-peak. The design can (...)
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TIDA-01344 — Automotive 10-V/80-V Ultra-Wide Vin, 12-V Vout Flyback Reference Design for 48-V Car Battery

The TIDA-01344 reference design is a 24W, automotive 48V battery front-end power supply that generates 12V from a wide input range of 10V to 80V DC, up to 100V transient for LV148 standard compliance. The system consists of EMI filters for CISPR 25 compliance and circuit protection for clamping (...)
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PMP20128 — 4.5V-60V Input Voltage SEPIC Converter (6.5V@2.5A) Reference Design

This 6.5V @ 2.5A SEPIC converter is designed to operate over a very wide input voltage range. After initial power up at 6V input, the converter can operate down to 4.5V input by implementing a voltage doubler for to provide bias power. It requires minimal component count, a small PCB area and (...)
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