SC1103 is a cost-effective single-ended DC/DC power supply controller with temperature compensated voltage reference, triangle wave oscillator, current limit comparator, frequency shift over-current protection and an internally compensated error amplifier.
The $C1103 is a versatile, low-cost, voltage-mode pulse-width modulation (PWM) controller designed specifically for use in single-ended DC/DC power supply applications. It features a simple fixed-voltage buck regulator implementation requiring a minimum of external components. Key internal circuitry includes level shift and drive circuits that eliminate the need for an expensive p-channel high-side switch, as well as a temperature-compensated voltage reference and internally compensated error amplifier.
| Reference Voltage | 1.25 V |
|---|---|
| Output Drive Current | 500 mA |
| Input Voltage Range | 5V to 12V |
| Operating Temperature | 0°C to +70°C |
No, internal level shift and drive circuitry eliminates the need for an expensive p-channel high-side switch.
The device provides a 1% reference voltage accuracy.