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LD1117S33TR - Linear Voltage Regulator 3.3V 800mA IC SOT-223

STMicroelectronics

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SKU:
033-LD1117S33TR
MPN:
LD1117S33TR
Quantity
Unit Price (ex. GST)
1 - 9
₹ 25.11
10 - 99
₹ 22.60
100 or above
₹ 20.09
LD1117S33TR 3.3V low-dropout linear voltage regulator IC with 800mA output current in SOT-223 package. Ideal for embedded systems, development boards, and stable 3.3V power supply designs. View full description
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Technical Specifications

Brand:
STMicroelectronics
Case/Package:
SOT-223
Contact Plating:
Tin
Mount:
Surface Mount
Number Of Pins:
4
Number of Terminals:
4
Weight:
4.535924 g
Accuracy:
1 %
Dropout Voltage:
1.1 V
Input Bias Current:
5 mA
Max Junction Temperature (Tj):
125 C
Max Operating Temperature:
125 C
Max Output Current:
1.3 A
Max Output Voltage:
3.3 V
Max Power Dissipation:
12 W
Max Supply Voltage:
15 V
Min Operating Temperature:
0 C
Min Output Voltage:
3.3 V
Min Supply Voltage:
4.75 V
Nominal Output Voltage:
3.3 V
Number of Channels:
1
Number of Circuits:
1
Number of Outputs:
1
Number of Regulators:
1
Output Current:
800 mA
Output Type:
Fixed
Output Voltage:
3.3 V
Output Voltage Accuracy:
1 %
Packaging:
Tape and Reel
Polarity:
Positive
Power Dissipation:
12 W
Quiescent Current:
5 mA
Termination:
SMD/SMT
Voltage:
3.3 V
Voltage Tolerance:
2 %
Height:
1.8 mm
Length:
6.5 mm
Terminal Pitch:
2.3 mm
Width:
3.5 mm

Warranty Information

All the products supplied by Evelta are genuine and original. We offer 14 days replacement warranty in case of manufacturing defects. For more details, please visit our cancellation and returns page.

Description

Resources:

Datasheet

3.3V 800mA Low-Dropout Linear Voltage Regulator IC for Embedded and Industrial Power Designs (SOT-223 Package)

The LD1117S33TR is a fixed 3.3V low-dropout (LDO) linear voltage regulator IC designed to deliver stable output with load current capability up to 800mA. It is widely used to generate a regulated 3.3V rail from 5V or higher DC inputs in microcontroller boards, communication modules, and digital logic systems. The low-dropout architecture ensures reliable regulation even when the input voltage is only slightly above the output voltage, making it suitable for efficient DC supply designs.

Housed in a SOT-223 surface-mount package, this regulator offers good thermal performance for medium-current applications when used with proper PCB copper area. It is commonly implemented in embedded systems, development boards, IoT devices, and industrial control circuits that require a dependable 3.3V power supply.

Key Features

  • Fixed Output Voltage: Regulated 3.3V DC output
  • High Output Current: Supports load current up to 800mA
  • Low-Dropout Operation: Maintains regulation with minimal input-output voltage difference
  • Package Type: SOT-223 surface-mount package for improved heat dissipation
  • Stable Linear Regulation: Suitable for digital and mixed-signal circuits
  • Typical Applications: Microcontroller boards, IoT modules, communication systems, and industrial electronics