MIC3833
Overview
The MIC3832 and MIC3833 are unique PWM controllers designed for current-fed, multiple-output or push-pull, switched-mode power supply applications. The MIC3832/3 features UVLO (undervoltage lockout) with hysteresis, soft start with a programmable time constant, cycle-by-cycle current limiting, a PWM latch to prevent multiple outputs due to noise or ringing, and front-edge blanking.
- 15.9V startup, up to 21V operation (MIC3832) 8.3V startup, up to 21V operation (MIC3833)
- 9.8V undervoltage lockout (MIC3832) 7.8V undervoltage lockout (MIC3833)
- 0.5mA maximum startup current (40µA typical)
- 17mA typical operating current
- 50ns maximum rise and fall times
- 30kHz to 500kHz RC oscillator
- Voltage or current-mode control
- Cycle-by-cycle current limit
- Soft start function
- 5V 2% reference sources 20mA
