MCP1703AT-4002E/DB

Product Overview

Category

The MCP1703AT-4002E/DB belongs to the category of voltage regulators.

Use

This product is commonly used in electronic circuits to regulate and stabilize voltage levels.

Characteristics

• Voltage regulation: The MCP1703AT-4002E/DB provides a fixed output voltage of 4.0V.
• Low dropout voltage: It operates with a low dropout voltage, ensuring efficient power conversion.
• Low quiescent current: The device has a low quiescent current, minimizing power consumption.
• Thermal shutdown protection: It incorporates thermal shutdown protection to prevent overheating.
• Short-circuit current limiting: The MCP1703AT-4002E/DB includes short-circuit current limiting for enhanced safety.

Package

This product is available in a small SOT-23 package, which is suitable for space-constrained applications.

Essence

The MCP1703AT-4002E/DB is an essential component in electronic systems that require stable and regulated voltage supply.

Packaging/Quantity

The MCP1703AT-4002E/DB is typically packaged in reels or tubes, with a quantity of 3000 units per reel/tube.

Specifications

• Input Voltage Range: 2.7V to 13.2V
• Output Voltage: 4.0V
• Dropout Voltage: 178mV (typical) at 250mA load
• Quiescent Current: 2.0µA (typical)
• Maximum Output Current: 250mA
• Operating Temperature Range: -40°C to +125°C

Detailed Pin Configuration

The MCP1703AT-4002E/DB has three pins:

1. VIN (Pin 1): Input voltage pin.
2. VOUT (Pin 2): Output voltage pin.
3. GND (Pin 3): Ground pin.

Functional Features

• Voltage Regulation: The MCP1703AT-4002E/DB maintains a constant output voltage of 4.0V, regardless of input voltage fluctuations.
• Low Dropout Voltage: It operates with a low dropout voltage, ensuring efficient power conversion even when the input voltage is close to the output voltage.
• Thermal Shutdown Protection: The device includes thermal shutdown protection, which automatically shuts down the regulator if the temperature exceeds a safe threshold.
• Short-Circuit Current Limiting: It incorporates short-circuit current limiting to protect the circuit from excessive current flow during a short-circuit condition.

Advantages and Disadvantages

Advantages

• Stable Output Voltage: The MCP1703AT-4002E/DB provides a stable output voltage, ensuring reliable operation of connected devices.
• Low Quiescent Current: It has a low quiescent current, resulting in minimal power consumption and increased battery life.
• Small Package Size: The SOT-23 package allows for easy integration into space-constrained designs.
• Thermal Protection: The thermal shutdown feature protects the device from overheating, enhancing its reliability.

Disadvantages

• Limited Maximum Output Current: The MCP1703AT-4002E/DB has a maximum output current of 250mA, which may not be sufficient for high-power applications.
• Fixed Output Voltage: The output voltage of 4.0V is fixed and cannot be adjusted, limiting its flexibility in certain applications.

Working Principles

The MCP1703AT-4002E/DB is a linear voltage regulator that uses a pass transistor to regulate the output voltage. It compares the output voltage with a reference voltage and adjusts the pass transistor accordingly to maintain a constant output voltage of 4.0V. The device operates by dissipating excess voltage as heat, resulting in a low dropout voltage.

Detailed Application Field Plans

The MCP1703AT-4002E/DB finds applications in various electronic systems, including but not limited to:

1. Battery-powered devices: It can be used to regulate the voltage supplied to microcontrollers, sensors, and other components in portable electronics.
2. Automotive electronics: The MCP1703AT-4002E/DB is suitable for automotive applications that require stable voltage supply, such as infotainment systems and engine control units.
3. Industrial automation: It can be utilized in industrial automation systems to provide regulated power to control circuits and sensors.
4. IoT devices: The device is well-suited for IoT applications where low power consumption and stable voltage are crucial.

Detailed and Complete Alternative Models

1. MCP1703AT-3302E/DB: Provides a fixed output voltage of 3.3V with similar characteristics and package as the MCP1703AT-4002E/DB.
2. MCP1703AT-5002E/DB: Offers a fixed output voltage of 5.0V, suitable for applications requiring a