Texas Instruments LM2940S-5.0/NOPB
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $2.34 | $2.34 |
| 15+ | $2.26 | $33.90 |
| 25+ | $2.21 | $55.25 |
| 50+ | $2.09 | $104.50 |
| 100+ | $1.85 | $185.00 |
| N+ | $0.37 | Price Inquiry |
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| Product attributes | Property Value |
| Manufacturer | Texas Instruments |
| Product Series | |
| Packaging | Tube | |
| Output Configuration | Positive |
| Output Type | Fixed |
| Number of Regulators | 1 |
| Voltage - Input (Max) | 26V |
| Voltage - Output (Min/Fixed) | 5V |
| Voltage - Output (Max) | - |
| Voltage Dropout (Max) | 1V @ 1A |
| Current - Output | 1A |
| Current - Quiescent (Iq) | 10 mA |
| Current - Supply (Max) | 15 mA |
| PSRR | 64dB (120Hz) |
| Control Features | - |
| Protection Features | Over Current, Over Temperature, Reverse Polarity, Short Circuit |
| Operating Temperature | -40°C ~ 125°C |
| Grade | - |
| Qualification | - |
| Mounting Type | Surface Mount |
| Package / Case | TO-263-4, D2PAK (3 Leads + Tab), TO-263AA |
| Supplier Device Package | TO-263 (DDPAK-3) |
| ROHS |  |
The LM2940S-5.0/NOPB from Texas Instruments is a fixed 5V LDO linear regulator capable of delivering 1A of current. It features a wide input voltage range up to 26V and a dropout voltage of just 1V at full load. Housed in a TO-263 (DDPAK-3) package, it offers excellent thermal performance and high PSRR, making it a reliable choice for automotive, industrial, and consumer applications.
- Fixed 5V Output: Simplifies design by eliminating external resistor networks, reducing component count and board space.
- Wide Input Voltage Range: Accepts inputs from 5V to 26V, providing flexibility for various power sources and transient conditions.
- High PSRR: 64dB at 120Hz ensures effective ripple rejection, delivering clean power to sensitive loads.
- Robust TO-263 Package: Offers superior heat dissipation for reliable operation at 1A in high-temperature environments.
Automotive Power Supply for Sensors and ECUs
The LM2940S-5.0's wide input range up to 26V and 1A output make it perfect for powering sensors and microcontrollers in automotive environments, where voltage transients are common.
Industrial Control Logic
With a fixed 5V output and 64dB PSRR at 120Hz, this regulator provides clean, stable power for PLCs, motor controllers, and industrial instrumentation.
Post-Regulation for High-Voltage Rails
Use it to step down from a 12V or 24V bus to a stable 5V for logic circuits. The 1V dropout ensures efficient operation even with marginal input voltages.
Battery-Powered Equipment
For systems using 6-12V batteries, the LM2940S-5.0 delivers a regulated 5V supply, ensuring consistent performance as the battery voltage varies.
Telecommunication Power Modules
Its robust TO-263 package and high PSRR make it suitable for telecom equipment requiring a reliable 5V rail for line cards and interface circuits.
Consumer Electronics Power Management
From set-top boxes to gaming consoles, this LDO provides a cost-effective solution for generating a clean 5V supply from higher voltage adapters.
- Q: What is the fixed output voltage of the LM2940S-5.0?
- A: This LDO provides a fixed 5V output, ideal for standard logic and microcontroller supplies.
- Q: What is the maximum output current?
- A: It can deliver up to 1A of output current for a wide range of applications.
- Q: What is the input voltage range?
- A: The input voltage can range from 5V up to 26V, providing flexibility for various power rails.
- Q: What is the dropout voltage?
- A: The dropout voltage is typically 1V at a 1A load, allowing operation with a 6V input for a 5V output.
- Q: What is the quiescent current?
- A: The quiescent current is typically 10 mA, which is acceptable for many automotive and industrial applications.
- Q: What package is available?
- A: It comes in a TO-263 (DDPAK-3) package, suitable for surface-mount designs with good thermal performance.
LM2940S-5.0/NOPB.pdf
- Q: What is the fixed output voltage of the LM2940S-5.0?
- A: This LDO provides a fixed 5V output, ideal for standard logic and microcontroller supplies.
- Q: What is the maximum output current?
- A: It can deliver up to 1A of output current for a wide range of applications.
- Q: What is the input voltage range?
- A: The input voltage can range from 5V up to 26V, providing flexibility for various power rails.
- Q: What is the dropout voltage?
- A: The dropout voltage is typically 1V at a 1A load, allowing operation with a 6V input for a 5V output.
- Q: What is the quiescent current?
- A: The quiescent current is typically 10 mA, which is acceptable for many automotive and industrial applications.
- Q: What package is available?
- A: It comes in a TO-263 (DDPAK-3) package, suitable for surface-mount designs with good thermal performance.
