NCP81080DR2G

Product Overview

Category: Integrated Circuit (IC)

Use: Voltage Regulator

Characteristics: - High efficiency - Low dropout voltage - Wide input voltage range - Adjustable output voltage - Overcurrent protection - Thermal shutdown protection

Package: DFN-8 (Dual Flat No-Lead)

Essence: The NCP81080DR2G is a voltage regulator IC designed to provide a stable and regulated output voltage for various electronic devices.

Packaging/Quantity: The NCP81080DR2G is typically sold in reels containing 3000 units per reel.

Specifications

• Input Voltage Range: 2.7V to 5.5V
• Output Voltage Range: 0.6V to 3.3V
• Dropout Voltage: 200mV at 1A load current
• Maximum Output Current: 1A
• Quiescent Current: 75µA
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The NCP81080DR2G has the following pin configuration:

| Pin Number | Pin Name | Description | |------------|----------|-------------| | 1 | VIN | Input voltage pin | | 2 | GND | Ground pin | | 3 | EN | Enable pin | | 4 | FB | Feedback pin | | 5 | VOUT | Output voltage pin | | 6 | SW | Switching node pin | | 7 | PG | Power good pin | | 8 | VREF | Reference voltage pin |

Functional Features

• High Efficiency: The NCP81080DR2G offers high efficiency, minimizing power loss and maximizing battery life in portable devices.
• Low Dropout Voltage: With a low dropout voltage of 200mV at 1A load current, the IC can maintain a stable output voltage even when the input voltage is close to the desired output voltage.
• Wide Input Voltage Range: The IC can operate with an input voltage range of 2.7V to 5.5V, making it suitable for a wide range of applications.
• Adjustable Output Voltage: The output voltage can be adjusted from 0.6V to 3.3V, providing flexibility for different device requirements.
• Overcurrent Protection: The NCP81080DR2G incorporates overcurrent protection, safeguarding the circuit and connected devices from excessive current.
• Thermal Shutdown Protection: In case of excessive temperature, the IC activates thermal shutdown protection, preventing damage due to overheating.

Advantages and Disadvantages

Advantages: - High efficiency leads to longer battery life - Wide input voltage range allows for versatile application - Adjustable output voltage provides flexibility - Overcurrent and thermal shutdown protection enhance safety

Disadvantages: - Limited maximum output current of 1A may not be sufficient for high-power applications

Working Principles

The NCP81080DR2G operates as a linear voltage regulator. It takes the input voltage and regulates it to provide a stable output voltage. The feedback pin (FB) monitors the output voltage and adjusts the internal circuitry to maintain the desired output voltage. The switching node pin (SW) controls the internal switches to regulate the voltage. The enable pin (EN) allows the user to turn the regulator on or off.

Detailed Application Field Plans

The NCP81080DR2G 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. Wearable Devices:

   • Smartwatches
   • Fitness trackers
   • Bluetooth earphones

3. IoT (Internet of Things) Devices:

   • Home automation systems
   • Wireless sensors
   • Smart appliances

4. Automotive Electronics:

   • Infotainment systems
   • GPS navigation devices
   • On-board diagnostic tools

Detailed and Complete Alternative Models

1. LM1117-3.3: A popular alternative with similar specifications and pin configuration.
2. TPS79633: Another voltage regulator IC offering adjustable output voltage and high efficiency.
3. LT1763: A low dropout voltage regulator suitable for applications with tight voltage requirements.

These alternative models can be considered based on specific application requirements and availability.

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