LD2981ABM33TR
- Mfr.Part #
- LD2981ABM33TR
- Manufacturer
- STMicroelectronics
- Package / Case
- SC-74A, SOT-753
- Datasheet
- Download
- Description
- IC REG LINEAR 3.3V 100MA SOT23-5
- Stock
- 25,328
- In Stock :
- 25,328
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- Manufacturer :
- STMicroelectronics
- Product Category :
- Voltage Regulators - Linear
- Packaging :
- Tape and Reel (TR)
- Time@Peak Reflow Temperature-Max (s) :
- 30
- ECCN Code :
- EAR99
- Number of Outputs :
- 1
- Accuracy :
- 0.75 %
- Output Type :
- FIXED
- Input Bias Current :
- 80μA
- Terminal Form :
- Gull wing
- Terminal Position :
- Dual
- Control Features :
- Enable
- Voltage - Input (Max) :
- 16V
- Dropout Voltage1-Nom :
- 0.12V
- Output Voltage 1 :
- 3.3V
- Dropout Voltage :
- 200mV
- Current - Supply (Max) :
- 2.6mA
- Length :
- 3mm
- Package / Case :
- SC-74A, SOT-753
- Protection Features :
- Over Current, Over Temperature
- JESD-609 Code :
- e3
- Lifecycle Status :
- ACTIVE (Last Updated: 6 months ago)
- Quiescent Current :
- 100μA
- Factory Lead Time :
- 14 Weeks
- Number of Regulators :
- 1
- Max Output Current :
- 100mA
- Number of Pins :
- 5
- Terminal Finish :
- Matte Tin (Sn) - annealed
- Number of Functions :
- 1
- Min Input Voltage :
- 2.5V
- Base Part Number :
- LD2981
- Output Voltage :
- 3.3V
- Mounting Type :
- Surface Mount
- Number of Terminations :
- 5
- Operating Temperature :
- -40°C~125°C
- Qualification Status :
- Not Qualified
- Output Voltage Accuracy :
- 0.75 %
- Output Configuration :
- Positive
- Pin Count :
- 5
- RoHS Status :
- ROHS3 Compliant
- Mount :
- Surface Mount
- Peak Reflow Temperature (Cel) :
- 260
- Lead Free :
- Lead Free
- Moisture Sensitivity Level (MSL) :
- 1 (Unlimited)
- Voltage Dropout (Max) :
- 0.375V @ 100mA
- Current - Quiescent (Iq) :
- 150μA
- Width :
- 1.75mm
- Min Output Voltage :
- 3.3V
- Height :
- 1.3mm
- PSRR :
- 63dB (1kHz)
- Datasheets
- LD2981ABM33TR

Voltage Regulators - Linear STMicroelectronics LD2981ABM33TR Overview
The STMicroelectronics LD2981ABM33TR is a high-performance linear voltage regulator, designed meticulously to provide a stable 3.3V output from a variety of input sources. This compact and efficient device is encased in a SOT-23-5 package, ensuring minimal footprint and ease of integration into dense PCB layouts. With its ability to supply up to 100mA of output current, the LD2981ABM33TR is perfectly suited for sensitive electronics that require a low-noise and reliable power supply. The integration of advanced thermal protection and short-circuit resilience features makes it an ideal choice for sustaining robust performance in challenging environments. As a Voltage Regulators - Linear STMicroelectronics LD2981ABM33TR, it stands out for its operational stability and efficiency.
LD2981ABM33TR Features
The LD2981ABM33TR offers several distinct features making it a versatile and indispensable component in modern electronics designs. These include low dropout voltage, which ensures efficient operation even with very low differences between input and output voltages, thus preserving battery life in portable applications. The built-in thermal shutdown and short-circuit protection safeguard the device and connected components from potential damage caused by overheating or excessive current. Furthermore, its low ground current characteristic enhances the overall energy efficiency, ideal for battery-driven devices.
LD2981ABM33TR Applications
- Portable Devices: In smartphones, tablets, and other portable electronics, the LD2981ABM33TR provides a stable power supply, essential for maintaining consistent performance and extending battery life.
- Consumer Electronics: Utilized in home automation devices and personal gadgets where power efficiency and supply stability are critical for reliability and user satisfaction.
- Medical Equipment: Employs its low-noise characteristics in sensitive medical devices, ensuring that they operate without interference and with maximal reliability.
- Embedded Systems: Supports microcontroller-based applications and other embedded systems by providing a clean, stable voltage, crucial for accurate readings and consistent outputs.
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