LD1117AV28

低压降固定和可调正电压调节器 LOW DROP FIXED AND ADJUSTABLE POSITIVE VOLTAGE REGULATORS

DESCRIPTION

The LD1117A is a LOW DROP Voltage Regulator able to provide up to 1A of Output Current, available even in adjustable version Vref=1.25V. Concerning fixed versions, are offered the

following Output Voltages: 1.8V, 2.5V, 2.85V, 3.3V and 5.0V. The 2.85V type is ideal for SCSI-2 lines active termination. The device is supplied in:SOT-223, DPAK and TO-220. The surface mount packages optimize the thermal characteristics even offering a relevant space saving effect. High efficiency is assured by NPN pass transistor.

■ LOW DROPOUT VOLTAGE 1.15V TYP. @ IOUT=1A,25°C

■ VERY LOW QUIESCENT CURRENT 5 mA TYP. @ 25°C

■ OUTPUT CURRENT UP TO 1A

■ FIXED OUTPUT VOLTAGE OF: 1.8V, 2.5V, 2.85V, 3.3V, 5.0V

■ ADJUSTABLE VERSION AVAILABILITY Vrel= 1.25V

■ INTERNAL CURRENT AND THERMAL LIMIT

■ ONLY 10 µF FOR STABILITY

■ AVAILABLE IN ± 2% AT 25°C AND 4% IN FULL TEMPERATURE RANGE

■ HIGH SUPPLY VOLTAGE REJECTION: 80dB TYP. AT 25°C

■ TEMPERATURE RANGE: 0°C TO 125°C