SNVS480J January 2007 – July 2020 LM5022
The LM5022 is a low-side, N-channel MOSFET controller that contains all of the features required to implement single-ended power converter topologies. The LM5022 includes a high-voltage 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, input undervoltage lockout, cycle-by-cycle current limit, slope compensation, soft start, oscillator sync capability, and thermal shutdown.
The LM5022 is designed for current-mode control power converters that require a single drive output, such as boost and SEPIC topologies. The LM5022 provides all of the advantages of current-mode control including input voltage feedforward, cycle-by-cycle current limiting, and simplified loop compensation.