Semtech Corporation SC1153
The SC1153 is a low-cost, full featured, synchronous voltage-mode controller designed for use in single ended power supply applications where efficiency is of primary concern. The SC1153 is ideal for implementing DC/DC converters needed to power advanced microprocessors, such as Pentium® lll, in both single and multiple processor configurations. The SC1153 operates at a fixed 200KHz, providing an optimum compromise between efficiency, external component size, and cost.| Part No. | SC1153 |
|---|---|
| Datasheet | SC1153 Download |
| Manufacturer |  Semtech Corporation |
| Description | PROGRAMMABLE SYNCHRONOUS DC/DC CONTROLLER FOR ADVANCED PROCESSORS |
| Buy | Stock & Price |
DESCRIPTION
Synchronous operation allows for the elimination of heat sinks in many applications. Internal level-shift, high-side drive circuitry, and preset shoot-thru control, allows for use of inexpensive n-channel power switches. SC1153 features include an integrated 5-bit VID DAC, temperature compensated voltage reference, triangle wave oscillator, current limit comparator, frequency shift over-current protection, and an accessible, internally compensated error amplifier. Power good signaling, logic compatible shutdown, and over voltage protection are also provided.FEATURES
●= Low cost / full featured●= Synchronous operation
●= 5 Bit VID programmable output
●= On-chip power good and OVP functions
●= Designed to meet Intel VRM 8.4 (Pentium® IlI)
●= 1.3V to 3.5V Range, 1% tolerance
APPLICATIONS
●= Pentium® IlI Core Supply●= Multiple Microprocessor Supplies
●= Voltage Regulator Modules (VRM)
●= Programmable Power Supplies
●= High Efficiency DC/DC Conversion ORDERING INFORMATION DEVICE (1) PACKAGE SO-20 TEMP.
