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STMICROELECTRONICS LD1117DT33TR Voltage Regulator

The LD1117 is a low dropout voltage regulator capable of delivering up to 800 mA of output current, available in adjustable and fixed versions. It features a low dropout voltage of approximately 1 V, high efficiency with a pass transistor, and excellent regulation performance suitable for various applications including active termination and power supply regulation. The device is offered in different packages such as TO-220, DPAK, SO-8, and SOT-223, with internal current and thermal limits ensuring reliable operation. Its adjustable version provides a precise output voltage with an internal 1.25 V reference, enhanced ripple rejection, and stable long-term operation.

Authorized Distributors
Source:Newark
Part No:LD1117DT33TR
Stock:33815
Inv Date:06-11-2026
Price: Unit price: $0.464
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Source:DigiKey
Part No:LD1117DT33TR
Stock:29000
Inv Date:06-11-2026
Price: Unit price: $0.23315
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Part No:LD1117DT33TR
Stock:4892
Inv Date:06-12-2026
Price: Unit price: $0.53
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Part No:LD1117DT33TR
Stock:0
Inv Date:06-11-2026
Price: Unit price: $0.45
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Part No:LD1117DT33TR
Stock:40000
Inv Date:06-11-2026
Price: Unit price: $0.2
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Source:Arrow EU
Part No:LD1117DT33TR
Stock:75000
Inv Date:06-12-2026
Price: N/A
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Part No:LD1117DT33TR
Stock:5000
Inv Date:06-12-2026
Price: N/A
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STMICROELECTRONICS LD1117DT33TR Voltage Regulator Specifications:

  • Output Current: up to 800 mA
  • Dropout Voltage: approximately 1 V (typ.)
  • Output Voltages: fixed at 1.2 V, 1.8 V, 2.5 V, 2.85 V, 3.3 V, 5.0 V; adjustable with reference voltage of 1.25 V
  • Packages Available: TO-220, DPAK, SO-8, SOT-223
  • Input Voltage Range: 3.9 V to 10 V (fixed versions), up to 15 V (adjustable)
  • Line Regulation: 1-6 mV
  • Load Regulation: 1-10 mV
  • Quiescent Current: 5-10 mA
  • Thermal and Current Limiting: built-in protections
  • Output Noise: 100 µV (B = 10 Hz to 10 kHz)
  • Supply Voltage Rejection: 60-75 dB

Buy the ST Series LD1117 Voltage Regulator: LD1117DT33TR

Get your ST Series LD1117DT33TR voltage regulator online today and ensure excellent power stability in your electronic projects. Designed for up to 800 mA output current with low dropout voltage, this adjustable regulator offers reliable regulation and thermal protection. Its versatile packages, including TO-220 and surface-mount options, make it suitable for diverse applications. With high efficiency, low noise, and built-in current and thermal limits, the LD1117 guarantees consistent performance for power supply and active termination. Purchase now and enhance your electronic designs.

Order your ST Series LD1117DT33TR today and give your projects the dependable quality they deserve with high efficiency and reliable thermal performance.

Frequently Asked Questions

Where can I buy STMICROELECTRONICS LD1117DT33TR?

You can click on the BUY or RFQ button to purchase LD1117DT33TR from an authorized STMICROELECTRONICS distributor.

How do I troubleshoot issues or seek technical support for part LD1117DT33TR?

You can download the LD1117DT33TR datasheet or visit the STMICROELECTRONICS website for support.

Who is the manufacturer of LD1117DT33TR?

STMICROELECTRONICS

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