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.
| Type | Title | Date | ||
|---|---|---|---|---|
| * | Data sheet | LM5022 60-V Low-Side Controller for Boost and SEPIC datasheet (Rev. J) | PDF | HTML | 21 May 2018 |
| White paper | Understanding Functional Safety FIT Base Failure Rate Estimates per IEC 62380 and SN 29500 (Rev. A) | PDF | HTML | 30 Apr 2024 | |
| 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 |
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