L5996中文資料意法半導體數(shù)據(jù)手冊PDF規(guī)格書

DESCRIPTION

The L5996 is a power supply controller that offers a complete power management for notebook CPUs of the next generation especially for mobile Pentium III. A high precise 5 bit digital to analog converter (DAC) allows to adjust the output voltage from 0.925V to 2.0V. Dynamic DAC code changes are detected on chip in order to switch the output voltage between 1.3V and 1.45V in less tahn 100μs.

■ DYNAMIC DAC DETECTION ON CHIP

■ PROGRAMMABLE OUTPUT FROM 0.925V TO 2.0V WITH 0.05V AND 0.025V BINARY STEPS

■ ULTRA HIGH EFFICIENCY

■ SEPARATE 5V BIAS SUPPLY AVAILABLE FOR HIGH EFFICIENCY PERFORMANCE

■ EXCELLENT OUTPUT ACCURACY ±1 OVER LINE, LOAD AND TEMPERATURE VARIATIONS

■ HIGH PRECISION INTERNAL REFERENCE DIGITALLY TRIMMED

■ OPERATING SUPPLY VOLTAGE FROM 4.75V TO 25V

■ VERY FAST LOAD TRANSIENT

■ REMOTE SENSING INPUTS

■ INTERNAL LINEAR REGULATOR 2.5V/150mA, ±2 PRECISION

■ POWER MANAGEMENT

- PROGRAMMABLE POWER-UP TIME

- POWER GOOD OUTPUT, SKIP MODE

- OUTPUT OVERVOLTAGE PROTECTION

- OUTPUT UNDERVOLTAGE LOCKOUT

■ OPERATING FREQUENCY UP TO 1MHz

■ MEETS INTEL MOBILE PENTIU? III

Application

■ ADVANCED MICROPROCESSOR SUPPLIES

■ POWERSUPPLYFORPENTIUM? III INTEL MOBILE