VN920-12-E

Product Overview

Category: Integrated Circuit (IC)

Use: Voltage Regulator

Characteristics: - Low dropout voltage - High output current capability - Adjustable output voltage - Thermal shutdown protection - Short-circuit current limiting

Package: TO-220

Essence: The VN920-12-E is a voltage regulator IC that provides a stable output voltage for various electronic devices.

Packaging/Quantity: The VN920-12-E is typically sold in reels or tubes, with each reel/tube containing a specific quantity of ICs. The exact packaging and quantity may vary depending on the supplier.

Specifications

• Input Voltage Range: 4.5V to 40V
• Output Voltage Range: 1.2V to 37V
• Output Current: Up to 1.5A
• Dropout Voltage: 1.3V (typical)
• Quiescent Current: 10mA (typical)
• Operating Temperature Range: -40°C to +125°C

Pin Configuration

The VN920-12-E IC has the following pin configuration:

```

---

| | --| Vout | --| Vin | --| GND | --| ADJ | |___________| ```

• Vout: Output Voltage
• Vin: Input Voltage
• GND: Ground
• ADJ: Adjustable Pin (used to set the desired output voltage)

Functional Features

• Low Dropout Voltage: The VN920-12-E has a low dropout voltage, allowing it to regulate the output voltage even when the input voltage is close to the desired output voltage.
• High Output Current Capability: With a maximum output current of 1.5A, the VN920-12-E can power a wide range of electronic devices.
• Adjustable Output Voltage: The ADJ pin allows the user to set the desired output voltage within the specified range.
• Thermal Shutdown Protection: The IC includes a thermal shutdown feature that protects it from overheating, ensuring its safe operation.
• Short-Circuit Current Limiting: In case of a short circuit, the VN920-12-E limits the output current to prevent damage to the IC and connected devices.

Advantages and Disadvantages

Advantages: - Wide input voltage range - Adjustable output voltage - High output current capability - Thermal shutdown protection - Short-circuit current limiting

Disadvantages: - Dropout voltage may affect efficiency in certain applications - Requires external components for proper operation

Working Principles

The VN920-12-E is based on a linear voltage regulator architecture. It uses a pass transistor to regulate the output voltage by adjusting the resistance between the input and output terminals. The adjustable pin (ADJ) allows the user to set the desired output voltage. The IC also incorporates various protection features such as thermal shutdown and short-circuit current limiting to ensure safe and reliable operation.

Detailed Application Field Plans

The VN920-12-E can be used in a wide range of applications that require stable and regulated power supply. Some common application fields include: - Automotive electronics - Industrial control systems - Power management circuits - Battery-powered devices - Audio amplifiers

Detailed and Complete Alternative Models

• LM317: A popular voltage regulator IC with similar characteristics and adjustable output voltage.
• L7805: A fixed 5V voltage regulator IC commonly used in various electronic devices.
• LT1084: A high-current adjustable voltage regulator IC suitable for demanding applications.

These alternative models offer different specifications and features, providing flexibility for various design requirements.

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