This document is SC1182/3 English datasheet, SC1182/3 is an integrated circuit, a programmable synchronous DC/DC converter, with dual low dropout linear regulator controller, provides most of the circuitry necessary to implement three DC/DC converters for powering advanced microprocessors, such as Pentium® II(Klamath) or Deschutes.
The $C1182/3 combines a synchronous voltage mode controller with two low-dropout linear regulators to implement three DC/DC converters. The switching section operates at a fixed frequency of 200kHz and features an integrated 5-bit D/A converter for programmable output voltages ranging from 2.0V to 3.5V without external components.
The device includes logic-compatible shutdown, pulse-by-pulse current limiting, and on-chip power good signaling. The linear sections provide fixed or adjustable low-dropout regulation suitable for GTL bus and non-GTL I/O requirements.
| Operating Frequency | 200kHz |
|---|---|
| Efficiency (Switching Section) | 95% |
| Output Voltage Range | 2.0V to 3.5V |
| Voltage Resolution (2.0V-3.5V) | 100mV increments |
| Operating Temperature Range | 0°C to +125°C (Junction) |
It is designed for Intel Pentium II (Klamath) or Deschutes microprocessor supplies.
No, it provides programmability of output voltage with no external components.