The ADP3153 is a 5-bit programmable dual power supply controller optimized for Pentium II and Deschutes Processor applications. It steps down 5V to a digitally controlled output voltage between 1.8V and 3.5V using a 5-bit DAC to read a voltage identification (VID) signal.
The ADP3153 is a highly efficient synchronous switching regulator controller and linear regulator controller optimized for desktop PC applications. It uses a 5-bit DAC to read voltage identification (VID) codes directly from the processor to generate precise output voltages between 1.8 V and 3.5 V.
The device drives two N-channel MOSFETs in a synchronous rectified buck converter with a maximum switching frequency of 250 kHz. It also includes a linear regulator controller that drives an external N-channel device, designed for excellent load transient response.
| Output Voltage Range | 1.8 V to 3.5 V |
|---|---|
| Total Output Accuracy | +/- 1% |
| Switching Frequency | 250 kHz |
| Operating Temperature Range | 0°C to +70°C |
| Package Type | TSSOP 20-Lead |
It is optimized for Pentium II, Deschutes, Pentium Pro, and Pentium processors.
The total output accuracy is +/- 1% from 0°C to +70°C.
The device includes short circuit protection, overvoltage protection crowbar, and power good output.