(China (Mainland))
Product Summary
The LD1117ASTR is a low drop voltage regulator able to provide up to 1 A of output current, available even in adjustable version (VREF = 1.25 V). Concerning fixed versions, are offered the following output voltages: 1.2 V, 1.8 V, 2.5 V and 3.3 V. The LD1117ASTR is supplied in: SOT-223, DPAK and TO-220. Surface mount packages optimize the thermal characteristics even offering a relevant space saving effect. High efficiency is assured by NPN pass transistor.
Parametrics
LD1117ASTR absolute maximum ratings: (1)VIN, DC input voltage: 15 V; (2)PD, Power dissipation: 12 W; (3)TSTG, Storage temperature range: -40 to +150℃; (4)TOP, Operating junction temperature range: 0 to +125℃.
Features
LD1117ASTR features: (1)Low dropout voltage: 1.15 V typ. @ IOUT = 1 A, 25℃; (2)Very low quiescent current: 5 mA typ. @ 25℃; (3)Output current up to 1 A; (4)Fixed output voltage of: 1.2 V, 1.8 V, 2.5 V, 3.3 V; (5)Adjustable version availability (VREL = 1.25 V); (6)Internal current and thermal limit; (7)Only 10 μF for stability; (8)Available in ± 2 % (at 25℃) and 4 % in full temperature range; (9)High supply voltage rejection: 80 dB typ. (at 25℃); (10)Temperature range: 0 to 125℃.
Diagrams
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 LD1117ASTR |
STMicroelectronics |
Low Dropout (LDO) Regulators LOW DROP FIXED REG |
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