MCP1703T-4002E/CB

Product Overview

Category

The MCP1703T-4002E/CB belongs to the category of voltage regulators.

Use

It is primarily used for regulating voltage in electronic circuits.

Characteristics

• Low dropout voltage
• High output voltage accuracy
• Low quiescent current
• Thermal shutdown protection
• Short-circuit current limiting

Package

The MCP1703T-4002E/CB comes in a compact SOT-23 package.

Essence

The essence of this product lies in its ability to provide stable and regulated voltage output.

Packaging/Quantity

The MCP1703T-4002E/CB is typically packaged in reels, with each reel containing a specific quantity of units. The exact quantity may vary depending on the manufacturer.

Specifications

• Input Voltage Range: 2.7V to 16V
• 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 MCP1703T-4002E/CB has three pins:

1. VIN (Input Voltage): This pin is connected to the input voltage source.
2. VOUT (Output Voltage): This pin provides the regulated output voltage.
3. GND (Ground): This pin is connected to the ground reference.

Functional Features

• Low Dropout Voltage: The MCP1703T-4002E/CB exhibits a low dropout voltage, ensuring efficient regulation even when the input voltage is close to the desired output voltage.
• High Output Voltage Accuracy: It offers high accuracy in maintaining the specified output voltage, ensuring reliable performance in various applications.
• Low Quiescent Current: The device consumes minimal current when in standby mode, conserving power and extending battery life.
• Thermal Shutdown Protection: It incorporates a thermal shutdown mechanism that protects the device from overheating, preventing damage to the regulator.
• Short-Circuit Current Limiting: The MCP1703T-4002E/CB has built-in short-circuit protection, limiting the output current in case of a short circuit.

Advantages and Disadvantages

Advantages

• Provides stable and regulated voltage output
• Low dropout voltage enhances efficiency
• High output voltage accuracy ensures reliable performance
• Low quiescent current for power conservation
• Thermal shutdown protection prevents overheating
• Short-circuit current limiting protects the device and connected components

Disadvantages

• Limited maximum output current (250mA)
• Restricted input voltage range (2.7V to 16V)

Working Principles

The MCP1703T-4002E/CB operates as a linear voltage regulator. It compares the output voltage with a reference voltage and adjusts the internal pass transistor to maintain a constant output voltage. The dropout voltage is minimized by utilizing a low resistance pass element. The device continuously monitors the output voltage and adjusts the pass transistor accordingly to ensure stability and regulation.

Detailed Application Field Plans

The MCP1703T-4002E/CB finds application in various electronic systems where a stable and regulated voltage supply is required. Some common application fields include:

1. Battery-powered devices: It can be used in portable electronics such as smartphones, tablets, and wearable devices to regulate voltage from the battery.
2. Industrial automation: The MCP1703T-4002E/CB can be employed in control systems, sensors, and actuators to provide consistent voltage levels.
3. Automotive electronics: It is suitable for automotive applications, including infotainment systems, lighting controls, and engine management systems.
4. IoT devices: The regulator can be utilized in Internet of Things (IoT) devices like smart home appliances, environmental sensors, and wireless communication modules.

Detailed and Complete Alternative Models

1. LM317: A popular linear voltage regulator with adjustable output voltage and a wide input voltage range.
2. LT1763: A low dropout voltage regulator with high output voltage accuracy and low quiescent current.
3. TPS7A47: An ultra-low noise linear regulator suitable for sensitive audio and RF applications.
4. LDO10C: A compact and low-cost linear voltage regulator designed for general-purpose use.

These alternative models offer similar functionality to the MCP1703T-4002E/CB and can be considered based on specific requirements and design constraints.

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