FEATURES
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: 1.2V, 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. Only a very common 10µF minimum capacitor is needed for stability. Only chip trimming allows the regulator to reach a very tight output voltage tolerance, within ± 2% at 25°C.
■ 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: 1.2V, 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
STMicroelectronics is a global independent semiconductor company and is a leader in developing and delivering semiconductor solutions across the spectrum of microelectronics applications. An unrivaled combination of silicon and system expertise, manufacturing strength, Intellectual Property (IP) portfolio and strategic partners positions the Company at the forefront of System-on-Chip (SoC) technology and its products play a key role in enabling today's convergence trends.