Semtech Corporation SC1158
The SC1158 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 SC1158 is ideal for implementing DC/DC converters needed to power advanced microprocessors such as Pentium® ll and K6-2. The SC1158 operates at a fixed 140KHz, providing an optimum compromise between efficiency, external component size, and cost.| Part No. | SC1158 |
|---|---|
| Datasheet | SC1158 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. SC1158 features include an integrated 4-bit VID DAC, temperature compensated voltage reference, triangle wave oscillator, current limit comparator, frequency shift over-current protection, and an internally compensated error amplifier.FEATURES
●= Low cost / full featured●= Synchronous operation
●= 4 Bit VID DAC programmable output
●= Meets Intel VRM8.2 (Pentium® II) high range
●= 1.5% Reference
APPLICATIONS
●= Pentium® II, K6-2 Core Supplies●= Multiple Microprocessor Supplies
●= Voltage Regulator Modules (VRM)
●= Programmable Power Supplies
●= High Efficiency DC/DC Conversion ORDERING INFORMATION DEVICE (1) (1% tolerance) PACKAGE (2) TEMP. RANGE (TJ) 0 - 125°C SC1158CS.TR SO-16NB Note: (1) Only available in tape and reel packaging. A reel contains 2500 devices. (2) “NB” indicates 150 MIL body.
