Texas Instruments LM2931CS
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $6.40 | $6.40 |
| 15+ | $2.65 | $39.75 |
| 25+ | $2.59 | $64.75 |
| 50+ | $2.45 | $122.50 |
| 100+ | $2.16 | $216.00 |
| N+ | $0.43 | Price Inquiry |
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| Product attributes | Property Value |
| Manufacturer | Texas Instruments |
| Product Series | |
| Packaging | Tube | |
| Output Configuration | Positive |
| Output Type | Adjustable |
| Number of Regulators | 1 |
| Voltage - Input (Max) | 26V |
| Voltage - Output (Min/Fixed) | 3V |
| Voltage - Output (Max) | 24V |
| Voltage Dropout (Max) | 0.3V @ 100mA |
| Current - Output | 100mA |
| Current - Quiescent (Iq) | 1 mA |
| Current - Supply (Max) | 15 mA |
| PSRR | 55dB (120Hz) |
| Control Features | - |
| Protection Features | Over Temperature, Reverse Polarity, Short Circuit |
| Operating Temperature | -40°C ~ 85°C |
| Grade | - |
| Qualification | - |
| Mounting Type | Surface Mount |
| Package / Case | TO-263-6, D2PAK (5 Leads + Tab), TO-263BA |
| Supplier Device Package | TO-263 (DDPAK-5) |
| ROHS |
The LM2931CS is a fixed 24V low dropout linear regulator capable of delivering 100mA of output current. It features a very low dropout voltage of 0.3V at full load, making it highly efficient for high-voltage applications. Housed in a TO-263 (DDPAK-5) package, this regulator offers a robust solution for industrial, telecom, and automotive systems requiring a stable 24V rail.
- High Output Voltage: Provides a fixed 24V output, ideal for industrial and telecom standards.
- Very Low Dropout: 0.3V dropout at 100mA ensures efficient operation even with low headroom.
- Robust Package: TO-263 (DDPAK-5) package ensures good thermal dissipation.
- Simple Design: Fixed output requires no external resistors, simplifying the BOM.
High-Voltage Bias Supplies
The 24V output makes the LM2931CS ideal for generating bias voltages for op-amps, displays, and other high-voltage analog circuits from a higher unregulated DC bus.
Industrial Sensor Interfaces
Provide a stable 24V supply for industrial sensors, transmitters, and field instruments that operate on standard 24V industrial power rails.
Telecom Line Drivers
Use this regulator to power line driver ICs and interface circuits in telecom equipment that require a clean 24V supply for signal integrity.
Automotive Applications
With a low dropout of 0.3V, it can efficiently regulate a 24V automotive electrical system (e.g., trucks) down to a stable voltage for control modules.
Power Supply for Vacuum Fluorescent Displays (VFD)
The 24V output is well-suited for powering VFDs used in consumer electronics and industrial equipment, providing a stable and clean supply.
- Q: What is the output voltage of the LM2931CS?
- A: The output voltage is 24V.
- Q: What is the maximum output current?
- A: It can deliver up to 100mA of output current.
- Q: What is the input voltage range?
- A: The input voltage range is not specified in the provided data; refer to the datasheet.
- Q: What is the dropout voltage?
- A: The dropout voltage is 0.3V at 100mA load.
- Q: What is the quiescent current?
- A: The quiescent current is 1 mA.
- Q: What package is available?
- A: It comes in a TO-263 (DDPAK-5) package.
- Q: What is the output voltage of the LM2931CS?
- A: The output voltage is 24V.
- Q: What is the maximum output current?
- A: It can deliver up to 100mA of output current.
- Q: What is the input voltage range?
- A: The input voltage range is not specified in the provided data; refer to the datasheet.
- Q: What is the dropout voltage?
- A: The dropout voltage is 0.3V at 100mA load.
- Q: What is the quiescent current?
- A: The quiescent current is 1 mA.
- Q: What package is available?
- A: It comes in a TO-263 (DDPAK-5) package.

LM2931CS.pdf