Microchip Technology, Inc. High Speed Low Side PWM Controller W/Dimming MCP1633

MCP1633 is a Fixed Frequency Peak Current Mode PWM Controller and can be used as a standalone LED driver. Input Voltage: 3.0V – 5.5V Input Quiescent Current: 3.5mA typical Oscillator Frequency: 200kHz – 2.2MHz External Sync. Frequency Range: 0.1MHz – 2.5MHz Internal Driver RDSON P-Channel: 5Ω max. Internal Driver RDSON N-Channel: 5Ω max. PWM DIMM Driver RDSON P-Channel: 100Ω max. PWM DIMM Driver RDSON N-Channel: 100Ω max. UVLO Threshold: 3.0V max. with 100mV hysteresis OVP Default Threshold: 1.23V Thermal Shutdown Threshold: 1600C with 200C hysteresis For product comparison, please consider: MCP1631 Additional Features Integrated Over Voltage Comparator Integrated Low Side MOSFET Driver Internal over temperature protection Undervoltage Lockout Thermal shut down with hysteresis