L6911B中文资料意法半导体数据手册PDF规格书

DESCRIPTION

The L6911B is a power supply controller specifically designed to provide a high performance DC/DC conversion for Pentium II Microproces sors. A precise 5 bit digital to analog converter

OPERATING SUPPLY VOLTAGE FROM 5V TO 12V

TTL-COMPATIBLE 5BIT PROGRAMMABLE OUTPUT FROM:

-1.3V TO 2.05V WITH 0.05V BINARY STEPS

-2.1V TO 3.5V WITH 0.1V BINARY STEPS

VOLTAGE MODE PWM CONTROL

EXCELLENT OUTPUT ACCURACY +/-1 OVERLINE, AND TEMPERATURE VARIATIONS

HIGH PRECISION INTERNAL REFERENCE DIGITALLY TRIMMED

VERY FAST LOAD TRANSIENT 0 TO 100 DUTY CYCLE

POWER GOOD OUTPUT

OVERVOLTAGE PROTECTION

OVERCURRENT PROTECTION REALISED USING THE MOSFET’s RDSon

OPERATING FREQUENCY FROM 50KHz TO 1MHz

MEETS INTEL PENTIUM II SPECIFICATION

DISABLE FUNCTION

Applications

POWER SUPPLY FOR ADVANCED MICROPROCESSOR SUPPLIES

POWER SUPPLY FOR PENTIUM II INTEL PROCESSORS