The LM5022 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 includes a start-up regulator that operates over a wide input range of 6V to 60V. The PWM controller is designed for high speed capability including an oscillator frequency range up to 2 MHz and total propagation delays less than 100 ns. Additional features include an error amplifier, precision reference, line under-voltage lockout, cycle-by-cycle current limit, slope compensation, soft-start, external synchronization capability and thermal shutdown. The LM5022 is available in the MSOP-10 package.
The LM5022 is a high‑voltage low‑side N‑channel MOSFET controller designed for boost and SEPIC converters. It includes an internal 60 V startup regulator, current‑mode control, programmable UVLO, soft‑start, slope compensation and thermal shutdown. The device operates from 6 V to 60 V and supports oscillator frequencies up to 2 MHz with propagation delays under 100 ns.
The handbook provides a connection diagram, ordering information, pin descriptions, absolute maximum ratings, electrical characteristics, typical performance curves, block diagram, example circuits, package dimensions and land‑pattern recommendations. Legal notices and life‑support policy statements are also included.
| Input voltage range | 6 V to 60 V |
|---|---|
| Oscillator frequency range | up to 2 MHz |
| Propagation delay | < 100 ns |
| Package type | 10‑lead MSOP (MUB10A) |
| Maximum duty cycle | 90 % (typical) |
| Thermal shutdown threshold | 165 °C |
The LM5022 is supplied in a 10‑lead MSOP (MUB10A) package.
The controller operates from 6 V up to 60 V.
The internal oscillator can run up to 2 MHz.
Connect the UVLO pin to a voltage divider so the pin sees a voltage greater than 1.25 V.