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HomeCommunitySubjectLD1117S33CTR LDO Voltage Regulator: 3.3V 950mA, LD1117S33CTR Datasheet and Circuit

LD1117S33CTR LDO Voltage Regulator: 3.3V 950mA, LD1117S33CTR Datasheet and Circuit

PMIC - Voltage Regulators - Linear TO-261-4, TO-261AA -40°C~125°C LD1117 1 % Over Current, Over Temperature 800mA 75dB (120Hz) 10mA STMICROELECTRONICS - LD1117S33CTR - LDO VOLTAGE REGULATOR, 3.3V, 0.8A, SOT-223-3

Nov 26, 2021

Madge Bronte

LD1117S33CTR Low Drop Out 3.3V Linear Regulator by STMicroelectronics

The LD1117S33CTR is a fixed low drop positive voltage regulator in a 4 pins SOT-223 package. This regulator provides up to 800mA of output current and high efficiency is assured by the NPN pass transistor. This article is going to explain details about the LD1117S33CTR LDO regulator.

LD1117S33CTR

118108In Stock

Min.: 1 Mult.: 1

Quantity	Unit Price	Ext. Price
1+	$0.31918	$0.32
10+	$0.30112	$3.01
100+	$0.28407	$28.41
500+	$0.26799	$134
1000+	$0.25282	$252.82

Unit Price:$0.31918

Subtotal: $0.32

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What is LD1117S33CTR?

The LD111733CTR is a linear regulator having a fixed output voltage of 3.3V, a maximum current of 1.34A, and a SOT-223 SMD packaging. The linear regulator's power dissipation is reduced by the low dropout voltage of 1V (typical @100mA). This is helpful in situations where a linear regulator's improved line regulation and energy economy are required. The supply voltage rejection is 75db, and the output voltage is 100V with minimal noise. For stability, the LD1117S33CTR just requires a single 10uF capacitor.

LD1117S33CTR Pinout

LD1117S33CTR Pinout

Pin Number	Pin Name	Description
1	Ground	Ground Pin – connected to the ground of the system.
2	Vout	Regulated Output Voltage
3	Vin	Input Voltage that is to be regulated

LD1117S33CTR CAD Model

LD1117S33CTR Symbol

LD1117S33CTR Footprint

LD1117S33CTR 3D Model

Specifications

STMicroelectronics LD1117S33CTR technical specifications, attributes, parameters and parts with similar specifications to STMicroelectronics LD1117S33CTR.

LD1117S33CTR Tech Specifications

STMicroelectronics LD1117S33CTR technical specifications, attributes, parameters and parts with similar specifications to STMicroelectronics LD1117S33CTR.

Product Attribute	Attribute Value
Factory Lead Time	8 Weeks
Contact Plating	Tin
Mount	Surface Mount
Mounting Type	Surface Mount
Package / Case	TO-261-4, TO-261AA
Number of Pins	3Pins
Weight	4.535924g
Operating Temperature	-40°C~125°C
Packaging	Tape & Reel (TR)
JESD-609 Code	e3
Part Status	Active
Moisture Sensitivity Level (MSL)	1 (Unlimited)
Number of Terminations	4Terminations
Termination	SMD/SMT
ECCN Code	EAR99
Packing Method	TR, 7 INCH
Max Power Dissipation	12W
Terminal Position	DUAL

Product Attribute	Attribute Value
Terminal Form	GULL WING
Number of Functions	1Function
Base Part Number	LD1117
Pin Count	4
Number of Outputs	1Output
Output Voltage	3.3V
Output Type	Fixed
Max Output Current	1.3A
Max Supply Voltage	15V
Min Supply Voltage	3.3V
Output Configuration	Positive
Power Dissipation	12W
Quiescent Current	10mA
Accuracy	1 %
Max Output Voltage	3.3V
Output Voltage 1	3.3V
Number of Regulators	1Regulator
Min Input Voltage	5.3V

Product Attribute	Attribute Value
Protection Features	Over Current, Over Temperature
Voltage Dropout (Max)	1.3V @ 800mA
PSRR	75dB (120Hz)
Dropout Voltage	1.1V
Min Output Voltage	3.3V
Voltage Tolerance-Max	2%
Nominal Output Voltage	3.3V
Input Bias Current	5mA
Output Voltage Accuracy	1 %
Height	1.8mm
Length	6.5mm
Width	3.5mm
REACH SVHC	No SVHC
Radiation Hardening	No
RoHS Status	ROHS3 Compliant
Lead Free	Lead Free

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Features of LD1117S33

Pin compatible/replacement for other 1117 devices
Low voltage dropout of 1V (typical)
Output current up to 800mA (1.3A max)
Supply rejection of 75dB and low noise of 100µV
Small SOT-223 SMD package
On-chip trimming for ±1% tolerance at 25°C
RoHS compliant

LD1117S33CTR Applications

Power regulation for low noise circuits
Power regulation for microcontrollers and other 3.3V devices
Portable devices requiring LDO regulators and power conservation
Replacement for non-RoHS 1117 alternatives

Alternatives for LD1117S33CTR

NCV1117ST33T3G, NCP1117ST33T3G, LD1117S33TR, LD1117S33TR

LD1117S33CTR Package Dimensions

LD1117S33CTR Package Dimensions

LD1117S33CTR Manufacturer

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.