The SC1159 is a programmable synchronous DC/DC hysteretic controller designed for use in single ended power supply applications where efficiency is the primary concern. It is ideal for implementing DC/DC converters needed to power advanced microprocessors such as Pentium III and Athlon, in both single and multiple processor configurations. The controller features an integrated 5-bit D/A converter, temperature compensated voltage reference, current limit comparator, over-current protection, and an adaptive deadtime circuit to prevent shoot-through of the power MOSFET during switching transitions. It also provides power good signaling, logic compatible shutdown, and over-voltage protection.
The SC1159 is a synchronous-buck switch-mode controller designed for single-ended power supply applications where efficiency is critical. It is specifically ideal for powering advanced microprocessors such as Pentium III and Athlon in both single and multiple processor configurations. The device includes features like programmable hysteresis, an integrated 5-bit D/A converter for output voltage programming from 1.050V to 1.825V, and adaptive deadtime circuits.
| Output Voltage Range (Programmable) | 1.050V to 1.825V in 25mV increments |
|---|---|
| Peak Output Current (High/Low Side) | 2 A |
The controller is ideal for implementing DC/DC converters needed to power advanced microprocessors such as Pentium III and Athlon.
The integrated D/A converter provides programmability of output voltage in 25mV increments.
Yes, power good signaling and over-voltage protection are provided as features of the controller.