Semtech Corporation SC1152
The SC1152 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 SC1152 is ideal for implementing DC/DC converters needed to power advanced microprocessors such as ® Pentium ll (Klamath), in both single and multiple processor configurations. The SC1152 operates at a fixed 200KHz, providing an optimum compromise between efficiency, external component size, and cost.| Part No. | SC1152 |
|---|---|
| Datasheet | SC1152 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. SC1152 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
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● Low cost / full featured Synchronous operation 5 Bit VID DAC programmable output On-chip power good and OVP functions ® Designed to meet Intel VRM8.1 (Pentium II)
APPLICATIONS
Pentium® II (Klamath) 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. RANGE (TJ) 0 - 125°C SC1152CS Note: (1) Add suffix ‘TR’ for tape and reel.
