The MIC5031 MOSFET driver is designed to switch an N-channel enhancement-type MOSFET from a TTL control signal in a high-side switch application. The MIC5031 provides overcurrent protection, can accommodate loads with high-inrush current, and is designed to survive automotive power disturbances. This driver is suitable for up to 30kHz PWM operation with 0% to 100% duty cycle. The MIC5031 is powered by the +4.5V to +30V load voltage. An external bootstrap capacitor and internal charge pump drive the gate output higher than the supply voltage. The bootstrap capacitor provides speed, while the charge pump can sustain the high gate output voltage continuously.