Texas Instruments LM2940T-9.0/NOPB
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $1.68 | $1.68 |
| 15+ | $1.63 | $24.45 |
| 25+ | $1.59 | $39.75 |
| 50+ | $1.50 | $75.00 |
| 100+ | $1.33 | $133.00 |
| N+ | $0.27 | 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) | 9V |
| 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 | Through Hole |
| Package / Case | TO-220-3 |
| Supplier Device Package | TO-220-3 |
| ROHS |  |
The LM2940T-9.0/NOPB is a fixed 9V low dropout regulator from Texas Instruments, offering 1A output current. With a dropout voltage of just 1V at full load, it efficiently regulates from 12V supplies. The TO-220-3 package provides excellent thermal performance for demanding applications. Its 64dB PSRR at 120Hz ensures clean power for audio and sensitive electronics.
- Fixed 9V Output: Directly powers 9V-rated devices without external resistors.
- 1A Current Capability: Handles moderate loads with ease.
- Low Dropout (1V): Works with input voltages as low as 10V.
- High PSRR (64dB): Reduces ripple for audio and RF applications.
- TO-220 Package: Easy to heatsink for high-power dissipation.
9V Battery Replacement
This regulator can replace 9V batteries in devices by stepping down from a 12V supply, providing longer life and stable voltage.
Guitar Effect Pedals
Musicians use 9V rails for analog pedals; this LDO provides clean, noise-free power with 64dB PSRR to prevent hum.
Security Cameras
For CCTV systems powered by 12V, this regulator delivers a stable 9V to camera modules, ensuring consistent video quality.
Portable Radios
In communication equipment, the 9V output powers RF stages, and the low dropout maintains operation during battery discharge.
Microcontroller Boards
Some MCU boards require 9V for input; this regulator provides a stable rail for analog peripherals.
Automotive Sensors
With 1A capability, it powers multiple sensors in a vehicle, and the TO-220 package allows chassis mounting for heat dissipation.
- Q: What is the output voltage?
- A: Fixed 9V output.
- Q: What is the maximum output current?
- A: 1A continuous.
- Q: What is the input voltage range?
- A: Minimum 10V (9V + 1V dropout), maximum 26V.
- Q: What is the dropout voltage?
- A: Typically 1V at 1A load.
- Q: What is the quiescent current?
- A: Typically 10mA.
- Q: What package is available?
- A: TO-220-3 through-hole package.
LM2940T-9.0/NOPB.pdf
- Q: What is the output voltage?
- A: Fixed 9V output.
- Q: What is the maximum output current?
- A: 1A continuous.
- Q: What is the input voltage range?
- A: Minimum 10V (9V + 1V dropout), maximum 26V.
- Q: What is the dropout voltage?
- A: Typically 1V at 1A load.
- Q: What is the quiescent current?
- A: Typically 10mA.
- Q: What package is available?
- A: TO-220-3 through-hole package.
