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LM431SBCMFX
+StücklisteIC VREF SHUNT ADJ 1% SOT23F-3
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HerstellerOnsemi
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Herstellerteil #LM431SBCMFX
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Datenblatt LM431SBCMFX DataSheet
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Auf Lager9047
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Spezifikationen
| Attribut | Wert |
| Part Status | Obsolete |
| Reference Type | Shunt |
| Output Type | Adjustable |
| Voltage - Output (Min/Fixed) | 2.495V |
| Current - Output | 100 mA |
| Tolerance | ±1% |
| Temperature Coefficient | 50ppm/°C Typical |
| Operating Temperature | -25°C ~ 85°C (TA) |
| Mounting Type | Surface Mount |
| Package / Case | SOT-23-3 Flat Leads |
| Supplier Device Package | SOT-23F-3 |
| Base Product Number | LM431 |
| Current - Cathode | 1 mA |
| Voltage - Output (Max) | 36 V |
Übersicht
Description
The device features low output impedance and high accuracy, with a typical temperature coefficient of 20 ppm/°C. Its current sink capability ranges from 1 mA to 100 mA, ensuring reliable performance under different load conditions. The LM431SBCMFX can also be employed in feedback loops to enhance voltage regulation in switch-mode power supplies.
Encapsulated in a compact SOT-23 package, it is ideal for space-constrained applications. The LM431 is widely used in consumer electronics, industrial equipment, and telecommunications due to its versatility and reliability. Overall, it is a popular choice for engineers seeking an efficient and precise voltage reference solution.
Equivalent
Features
1. Output Voltage Range: Adjustable from 1.24V to 37V, allowing for flexibility in various applications.
2. Temperature Coefficient: Low temperature coefficient of 0.2%/°C, ensuring stable performance across temperature variations.
3. Circuit Configurations: Can be used in series or shunt configurations, making it versatile for different designs.
4. Low Output Impedance: Provides low output impedance for improved load regulation.
5. High Accuracy: Offers a typical initial accuracy of ±1%, ensuring precise voltage regulation.
6. Operating Current: Typically operates at a current of 1 mA to 100 mA, accommodating various load requirements.
7. Pinout: Standard 3-pin configuration for easy integration into circuits.
8. Applications: Suitable for power supplies, voltage regulation, battery chargers, and as a reference voltage in analog circuits.
This device is commonly used in consumer electronics, automotive, and industrial applications.
Pinout
### Pin Functions:
1. Ref (Reference): This pin is used to connect to an external resistor divider to set the output voltage. It provides a reference voltage of 1.24V.
2. Cathode (K): This is the output pin where the regulated voltage is provided. It connects to the load or application circuit.
3. Anode (A): This pin is connected to ground or the negative supply voltage. It completes the circuit and is typically grounded.
The LM431 is widely used for voltage regulation, error amplification, and as a reference voltage in various power supply applications.