NB2780ASNR2G

Product Overview

Category: Integrated Circuit (IC)

Use: Voltage Regulator

Characteristics: - Low dropout voltage - High output current capability - Adjustable output voltage - Thermal shutdown protection - Overcurrent protection

Package: SOT-223

Essence: The NB2780ASNR2G is a voltage regulator IC designed to provide a stable and regulated output voltage for various electronic devices.

Packaging/Quantity: The NB2780ASNR2G is typically sold in reels containing 2500 units.

Specifications

• Input Voltage Range: 2.5V - 6.0V
• Output Voltage Range: 1.2V - 5.5V
• Maximum Output Current: 1.5A
• Dropout Voltage: 300mV @ 1A
• Quiescent Current: 75µA
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The NB2780ASNR2G has the following pin configuration:

1. VIN (Input Voltage)
2. GND (Ground)
3. VOUT (Output Voltage)
4. EN (Enable)

Functional Features

• Low Dropout Voltage: The NB2780ASNR2G exhibits a low dropout voltage, ensuring efficient regulation even when the input voltage is close to the desired output voltage.
• High Output Current Capability: With a maximum output current of 1.5A, this voltage regulator can power a wide range of electronic devices.
• Adjustable Output Voltage: The output voltage can be adjusted within the specified range using external resistors, providing flexibility for different applications.
• Thermal Shutdown Protection: The IC incorporates thermal shutdown protection, which prevents damage due to excessive temperature.
• Overcurrent Protection: The NB2780ASNR2G includes overcurrent protection, safeguarding the circuit and connected devices from excessive current.

Advantages and Disadvantages

Advantages: - Low dropout voltage ensures efficient regulation - High output current capability for powering various devices - Adjustable output voltage provides flexibility - Thermal shutdown and overcurrent protection enhance reliability

Disadvantages: - Limited input voltage range (2.5V - 6.0V) - Quiescent current of 75µA may be relatively high for power-sensitive applications

Working Principles

The NB2780ASNR2G operates as a linear voltage regulator. It regulates the output voltage by maintaining a constant voltage drop across its internal pass transistor. The feedback mechanism compares the output voltage with a reference voltage and adjusts the pass transistor accordingly to maintain the desired output voltage.

Detailed Application Field Plans

The NB2780ASNR2G is commonly used in various electronic devices that require a stable and regulated power supply. Some typical application fields include:

1. Mobile Devices: Smartphones, tablets, portable media players
2. Computer Peripherals: USB hubs, external hard drives, printers
3. Consumer Electronics: Digital cameras, gaming consoles, audio/video equipment
4. Industrial Equipment: Test and measurement instruments, control systems
5. Automotive Electronics: Infotainment systems, navigation devices, lighting controls

Detailed and Complete Alternative Models

1. LM1117-ADJ: Adjustable Voltage Regulator, SOT-223 package, 1.2V - 20V output range.
2. LT1763-3.3: Fixed 3.3V Voltage Regulator, SOT-223 package, low dropout voltage.
3. TPS7A4700: Ultra-Low Noise Voltage Regulator, SOT-223 package, 1.5A maximum output current.

(Note: The above alternative models are provided for reference and may have different specifications and features. It is recommended to consult the respective datasheets for detailed information.)

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