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LM2940CT-15/NOPB
LDO Regulator Pos 15V 1A 3-Pin(3+Tab) TO-220 Tube
LM2940CT-15/NOPB
LDO Regulator Pos 15V 1A 3-Pin(3+Tab) TO-220 Tube
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Manufacturer Part # : LM2940CT-15/NOPB
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Package/Case: TO220-3
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Brand: Texas Instruments
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Product Categories : Voltage Regulators - Linear, Low Drop Out (LDO) Regulators
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Service & Packaging
Service & Packaging
About After Sales Service
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Initiate the application within 90 days from the shipment date.
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LM2940CT-15/NOPB DataSheet
Current price plan is under preparation. Please contact our customer service team for the latest pricing information. Thank you for your understanding and support!
Details
The LM2940CT-15/NOPB IC is a premium-grade voltage regulator that delivers a fixed output voltage of 15V and a maximum current of 1A, making it ideal for a variety of electronic applications. With a primary input voltage of 26V, this TO-220 packaged component offers a low dropout voltage of 500mV, ensuring consistent performance even under varying load conditions. Operating seamlessly within a temperature range of 0°C to +125°C, this IC is well-suited for a wide range of environments. With a MSL rating of 1 - Unlimited, you can rely on the LM2940CT-15/NOPB for long-lasting performance and durability. Featuring 3 pins and a single output, this voltage regulator is a compact and reliable solution for your power supply needs
Key Features
- This regulator has a low dropout voltage and high reliability
- It features thermal shutdown protection to prevent overheating
- Maximum operating temperature is 150°C
- Minimum input-to-output isolation voltage is 4KVDC
Specifications
The followings are basic parameters of the part selected concerning the characteristics of the part and categories it belongs to.
| Output options | Fixed Output | Iout (max) (A) | 1 |
| Vin (max) (V) | 26 | Vin (min) (V) | 6 |
| Vout (max) (V) | 15 | Vout (min) (V) | 5 |
| Fixed output options (V) | 5, 9, 12, 15 | Noise (µVrms) | 150 |
| Iq (typ) (mA) | 10 | Thermal resistance θJA (°C/W) | 23 |
| Rating | Catalog | Load capacitance (min) (µF) | 22 |
| Regulated outputs (#) | 1 | Accuracy (%) | 5 |
| PSRR at 100 KHz (dB) | 54 | Dropout voltage (Vdo) (typ) (mV) | 500 |
| Operating temperature range (°C) | 0 to 125 |
FAQs
What is LM2940CT-15/NOPB?
The LM2940CT-15/NOPB is a low dropout voltage regulator from Texas Instruments. It is capable of providing up to 1A of output current with a dropout voltage of typically 0.5V at full load.
How Does LM2940CT-15/NOPB Work?
The LM2940CT-15/NOPB regulates the input voltage to a lower, stable output voltage, even when the input voltage is only slightly higher than the desired output voltage. This is achieved by a PNP pass transistor, which ensures a low dropout voltage, making it suitable for low voltage applications.
How Many Pins does LM2940CT-15/NOPB have and What are the Functions of the Pinout Configuration?
The LM2940CT-15/NOPB is housed in a 3-pin TO-220 package. The pinout configuration includes:
- Input (VIN): Input voltage pin.
- Ground (GND): Ground pin.
- Output (VOUT): Regulated output voltage pin.
What are the Pros and Cons of LM2940CT-15/NOPB?
Pros:
- Low Dropout Voltage: Ensures stable operation even with low input-output differentials.
- High Output Current: Capable of supplying up to 1A of output current.
- Thermal Shutdown Protection: Includes thermal shutdown and current limit protection features.
- Simple External Circuitry: Requires minimal external components for operation.
Cons:
- TO-220 Package: The TO-220 package may be relatively large for space-constrained designs.
- Heat Dissipation: May require heat sinking for high current applications.
Are There Any Equivalents/Alternatives to LM2940CT-15/NOPB for Recommendation?
- The LM2937 from Texas Instruments is a similar low dropout voltage regulator with adjustable output.
- Alternatives to the LM2940CT-15/NOPB include the LDO33L from STMicroelectronics and the MCP1703 from Microchip Technology.
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