LPR30D中文资料意法半导体数据手册PDF规格书

DESCRIPTION

The LPR30 is a very Low Dropout Regulator Controller in a single IC solution for very high current low dropout linear voltgage regulator. It uses an external N-CHANNEL POWER MOSFET as the linear pass element. The LPR30 features a dropout voltage as low as the RDS(on) of the external Power MOSFET multiplied by the output current. Consequently the output current can be as high as the POWER MOSFET can provide (also using an adeguate heatsink).

■ VERY LOW DROPOUT POWER MOSFET DRIVER

■ HIGH PRECISION Vref = 2.5V (±2)

■ VERY LOW CURRENT DRAIN (TYP. 2mA)

■ REFERENCE OUTPUT CURRENT UP TO 20mA

■ OPERATING SUPPLY VOLTAGE FROM 5V TO 30V

■ MAXIMUM INPUT VOLTAGE ON-GATE PIN (N. 8) UP TO 60V

■ INTERNAL CURRENT LIMIT OPERATIONAL AMPLIFIER OFFSET TRIMMED AT 50mV ±10mV

■ NO CAPACITOR IS NEEDED FOR STABILITY OF REFERENCE OUTPUT

■ TEMPERATURE RANGE 0oC TO 70oC

APPLICATION

■ ULTRA HIGH CURRENT ULTRA LOW DROPOUT VOLTAGE REGULATOR

■ CONSTANT HIGH CURRENT SOURCE

■ LOW PARTS COUNT 5V TO 3.3V COMPUTER SUPPLY

■ LOW NOISE/LOWDROP SMPS POST REGULATOR