Integrated Circuits (ICs)

LD1117S18TR

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STMicroelectronics

ADJUSTABLE AND FIXED LOW DROP POSITIVE VOLTAGE REGULATOR

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Search across all available documentation for this part.

DocumentsDS0517 Product Change Notice EN

Integrated Circuits (ICs)

LD1117S18TR

Active

STMicroelectronics

ADJUSTABLE AND FIXED LOW DROP POSITIVE VOLTAGE REGULATOR

Deep-Dive with AI

DocumentsDS0517 Product Change Notice EN

Specifications Series Pricing Description Documents

Technical Specifications

Parameters and characteristics for this part

Specification	LD1117S18TR

Current - Output	800 mA
Current - Quiescent (Iq)	10 mA
Mounting Type	Surface Mount
Number of Regulators	1
Operating Temperature [Max]	125 °C
Operating Temperature [Min]	0 °C
Output Configuration	Positive
Package / Case	TO-261AA, TO-261-4
Protection Features	Over Temperature, Over Current
PSRR	75 dB
Supplier Device Package	SOT-223
Voltage - Input (Max) [Max]	15 V
Voltage - Output (Min/Fixed)	1.8 V
Voltage Dropout (Max) [Max]	1.2 V

LD1117 Series

Adjustable and fixed low drop positive voltage regulator

Part	Current - Output	Current - Quiescent (Iq)	Voltage - Output (Min/Fixed)	Voltage - Input (Max) [Max]	Package / Case	Protection Features	Voltage Dropout (Max) [Max]	Supplier Device Package	Output Configuration	PSRR	Operating Temperature [Min]	Operating Temperature [Max]	Mounting Type	Number of Regulators	Output Type	Voltage - Output (Max) [Max]	Voltage Dropout (Max)
STMicroelectronics LD1117S33TR	800 mA	10 mA	3.3 V	15 V	TO-261-4 TO-261AA	Over Current Over Temperature	1.2 V	SOT-223	Positive	75 dB	0 °C	125 °C	Surface Mount	1
STMicroelectronics LD1117DT33	800 mA	10 mA	3.3 V	15 V	DPAK (2 Leads + Tab) SC-63 TO-252-3	Over Current Over Temperature	1.2 V	DPAK	Positive	75 dB	0 °C	125 °C	Surface Mount	1
STMicroelectronics LD1117S18TR	800 mA	10 mA	1.8 V	15 V	TO-261-4 TO-261AA	Over Current Over Temperature	1.2 V	SOT-223	Positive	75 dB	0 °C	125 °C	Surface Mount	1
STMicroelectronics LD1117S50TR	800 mA	10 mA	5 V	15 V	TO-261-4 TO-261AA	Over Current Over Temperature	1.2 V	SOT-223	Positive	75 dB	0 °C	125 °C	Surface Mount	1
STMicroelectronics LD1117V-DG	800 mA	5 mA	1.25 V	15 V	TO-220-3	Over Current Over Temperature	1.2 V	TO-220	Positive	75 dB	0 °C	125 °C	Through Hole	1	Adjustable	15 V
STMicroelectronics LD1117V33C	800 mA	10 mA	3.3 V	15 V	TO-220-3	Over Current Over Temperature	1.3 V	TO-220	Positive	75 dB	-40 C	125 °C	Through Hole	1
STMicroelectronics LD1117S25CTR	800 mA	10 mA	2.5 V	15 V	TO-261-4 TO-261AA	Over Current Over Temperature	1.3 V	SOT-223	Positive	75 dB	-40 C	125 °C	Surface Mount	1
STMicroelectronics LD1117STR	800 mA	5 mA	1.25 V	15 V	TO-261-4 TO-261AA	Over Current Over Temperature	1.2 V	SOT-223	Positive	75 dB	0 °C	125 °C	Surface Mount	1	Adjustable	15 V
STMicroelectronics LD1117AS25TR	1 A	10 mA	2.5 V	15 V	TO-261-4 TO-261AA	Over Current Over Temperature		SOT-223	Positive	80 dB	0 °C	125 °C	Surface Mount	1			1.3 V
STMicroelectronics LD1117AD2MTR	1 A	5 mA	1.25 V	15 V	D2PAK (2 Leads + Tab) TO-263-3 TO-263AB	Over Current Over Temperature		D2PAK	Positive	80 dB	0 °C	125 °C	Surface Mount	1	Adjustable	15 V	1.3 V

Pricing

Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly

Distributor	Package	Quantity	$

Digikey	Cut Tape (CT)	1	$ 0.65
		10	$ 0.56
		25	$ 0.52
		100	$ 0.42
		250	$ 0.39
		500	$ 0.33
		1000	$ 0.25
	Digi-Reel®	1	$ 0.65
		10	$ 0.56
		25	$ 0.52
		100	$ 0.42
		250	$ 0.39
		500	$ 0.33
		1000	$ 0.25
	N/A	15157	$ 0.45
	Tape & Reel (TR)	2500	$ 0.23
		5000	$ 0.22
		12500	$ 0.20
		25000	$ 0.19
Newark	Each (Supplied on Full Reel)	2500	$ 0.22

Description

General part information

LD1117 Series

The LD1117A is a low drop voltage regulator able to provide up to 1 A of output current, available also in adjustable versions (VREF= 1.25 V). In fixed versions, the following output voltages are offered: 1.2 V, 1.8 V, and 3.3 V. The device is supplied in: SOT-223, DPAK and TO-220. Surface mounted packages optimize the thermal characteristics while offering a relevant space saving advantage. High efficiency is assured by an NPN pass transistor. Only a very common 10 μF minimum capacitor is needed for stability. Chip trimming allows the regulator to reach a very tight output voltage tolerance, within ± 2% at 25 °C.

Documents

Technical documentation and resources

DS0517

Product Specifications

Product Change Notice EN

Datasheet