Features: • 1.265V Reference available• Synchronous operation• Over current fault monitor• On-chip power good and OVP functions• Small size with minimum external components• Soft Start• RDS(ON) Current sensingApplication• Microprocessor core supply...
SC1102: Features: • 1.265V Reference available• Synchronous operation• Over current fault monitor• On-chip power good and OVP functions• Small size with minimum external compon...
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• 1.265V Reference available
• Synchronous operation
• Over current fault monitor
• On-chip power good and OVP functions
• Small size with minimum external components
• Soft Start
• RDS(ON) Current sensing
• Microprocessor core supply
• Low cost synchronous applications
• Voltage Regulator Modules (VRM)
Parameter | Symbol | Maximum | Units |
VCC, BSTL to GND | VIN | -0.3 to 14 | V |
PGND to GND | ± 0.5 | V | |
PHASE to GND | -0.3 to 18 | V | |
BSTH to PHASE | 14 | V | |
Thermal Resistance Junction to Case | JC | 45 | °C/W |
Thermal Resistance Junction to Ambient | JA | 115 | °C/W |
Operating Temperature Range | TA | 0 to 70 | °C |
Storage Temperature Range | TSTG | -65 to +150 | °C |
Lead Temperature (Soldering) 10 sec | TLEAD | 300 | °C |
ESD Rating (Human Body Model) | ESD | 2 | kv |
The SC1102 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. Synchronous operation allows for the elimination of heat sinks in many applications. The SC1102 is ideal for implementing DC/DC converters needed to power advanced microprocessors in low cost systems, or in distributed power applications where efficiency is important. Internal level-shift, highside drive circuitry, and preset shoot-thru control, allows the use of inexpensive N-channel power switches.
SC1102 features include temperature compensated voltage reference, triangle wave oscillator and current sense comparator circuitry. Power good signaling, shutdown, and over voltage protection are also provided.
The SC1102 operates at a fixed 200kHz, providing an optimum compromise between efficiency, external component size, and cost.