NCP392CSFCCT1G

Product Overview

Category: Integrated Circuit (IC)

Use: Voltage Regulator

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

Package: SOT-23-5

Essence: The NCP392CSFCCT1G is a voltage regulator IC designed to provide a stable and regulated output voltage for various electronic devices.

Packaging/Quantity: The NCP392CSFCCT1G is available in a SOT-23-5 package. It is typically sold in reels containing 3000 units.

Specifications

• Input Voltage Range: 2.7V to 5.5V
• Output Voltage Range: 0.8V to 3.6V
• Dropout Voltage: 200mV at 100mA
• Maximum Output Current: 150mA
• Quiescent Current: 50µA
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The NCP392CSFCCT1G has the following pin configuration:

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

Functional Features

• High Efficiency: The NCP392CSFCCT1G offers high efficiency, minimizing power loss and maximizing battery life in portable devices.
• Low Dropout Voltage: With a low dropout voltage of only 200mV at 100mA, the IC can maintain a stable output voltage even when the input voltage is close to the desired output voltage.
• Adjustable Output Voltage: The output voltage can be adjusted within the range of 0.8V to 3.6V, providing flexibility for different applications.
• Overcurrent Protection: The IC incorporates overcurrent protection, safeguarding the device and connected components from excessive current flow.
• Thermal Shutdown Protection: In case of excessive temperature, the thermal shutdown feature activates, preventing damage to the IC.

Advantages and Disadvantages

Advantages: - High efficiency - Adjustable output voltage - Overcurrent and thermal protection - Small package size

Disadvantages: - Limited maximum output current (150mA) - Restricted input voltage range (2.7V to 5.5V)

Working Principles

The NCP392CSFCCT1G is a linear voltage regulator that uses a pass transistor to regulate the output voltage. It operates by comparing the feedback voltage (FB) with a reference voltage to adjust the pass transistor's resistance and maintain a stable output voltage. When the input voltage (VIN) is higher than the desired output voltage (VOUT), the pass transistor reduces its resistance, allowing current to flow through it. Conversely, when the input voltage drops below the desired output voltage, the pass transistor increases its resistance, limiting the current flow.

Detailed Application Field Plans

The NCP392CSFCCT1G is commonly used in various electronic devices requiring a stable and regulated power supply. Some typical application fields include:

1. Mobile Devices: Smartphones, tablets, portable media players.
2. Wearable Electronics: Smartwatches, fitness trackers, wireless earbuds.
3. IoT Devices: Home automation systems, smart sensors, connected appliances.
4. Consumer Electronics: Digital cameras, handheld gaming consoles, portable audio devices.
5. Industrial Applications: Battery-powered sensors, control systems, instrumentation.

Detailed and Complete Alternative Models

1. LM1117-3.3: A popular alternative with a fixed output voltage of 3.3V.
2. LT1763: Offers a higher maximum output current of 500mA.
3. TPS7A4700: Provides ultra-low dropout voltage for demanding applications.
4. MCP1702: Low-cost alternative with adjustable output voltage.

These alternative models offer similar functionality and can be considered based on specific requirements and design constraints.

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