MCP1725-3002E/SN

Product Overview

Category

The MCP1725-3002E/SN belongs to the category of voltage regulators.

Use

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

Characteristics

• Input Voltage Range: 4.0V to 16.0V
• Output Voltage Range: 1.8V to 5.5V
• Maximum Output Current: 500mA
• Low Dropout Voltage: 178mV at 500mA
• Low Quiescent Current: 120µA
• High PSRR: 70dB at 1kHz
• Thermal Shutdown Protection
• Short-Circuit Current Limiting
• Overcurrent Protection
• Under Voltage Lockout (UVLO)
• Small Package Size: SOT-23-5

Packaging/Quantity

The MCP1725-3002E/SN is available in a small SOT-23-5 package. It is typically sold in reels or tubes, with a quantity of 3000 units per reel.

Specifications

• Input Voltage Range: 4.0V to 16.0V
• Output Voltage Range: 1.8V to 5.5V
• Maximum Output Current: 500mA
• Dropout Voltage: 178mV at 500mA
• Quiescent Current: 120µA
• Power Supply Rejection Ratio (PSRR): 70dB at 1kHz
• Operating Temperature Range: -40°C to +125°C
• Thermal Shutdown Temperature: 160°C

Pin Configuration

The MCP1725-3002E/SN has a total of five pins arranged as follows:

```

---

| | --| |-- |____| ```

Pin 1: VIN (Input Voltage) Pin 2: GND (Ground) Pin 3: VOUT (Output Voltage) Pin 4: BYP (Bypass Capacitor) Pin 5: EN (Enable)

Functional Features

1. Low Dropout Voltage: The MCP1725-3002E/SN exhibits a low dropout voltage of only 178mV at a maximum output current of 500mA, ensuring efficient power conversion.

2. Low Quiescent Current: With a quiescent current of only 120µA, this voltage regulator minimizes power consumption when the load is light or idle.

3. High PSRR: The high Power Supply Rejection Ratio of 70dB at 1kHz ensures that the output voltage remains stable even in the presence of fluctuations in the input power supply.

4. Thermal Shutdown Protection: The MCP1725-3002E/SN incorporates thermal shutdown protection, which prevents damage to the device by shutting it down when the temperature exceeds the specified limit.

5. Short-Circuit Current Limiting: This feature protects the regulator from excessive current flow in case of a short circuit, preventing damage to both the regulator and the connected circuitry.

6. Under Voltage Lockout (UVLO): The UVLO feature ensures that the regulator remains off until the input voltage reaches a safe operating level, preventing improper operation during power-up or brownout conditions.

Advantages and Disadvantages

Advantages

• Wide input voltage range allows for versatile applications.
• Low dropout voltage ensures efficient power conversion.
• Small package size enables space-saving designs.
• Thermal shutdown protection prevents device damage due to overheating.
• Short-circuit current limiting protects the regulator and connected circuitry.

Disadvantages

• Maximum output current limited to 500mA, which may not be sufficient for high-power applications.
• Limited output voltage range may not meet the requirements of certain circuits.

Working Principles

The MCP1725-3002E/SN operates as a linear voltage regulator. It takes an input voltage within the specified range and regulates it to provide a stable output voltage. The internal circuitry of the regulator adjusts the voltage difference between the input and output to maintain a constant output voltage, even when the input voltage or load conditions vary.

Application Field Plans

The MCP1725-3002E/SN finds applications in various electronic systems that require regulated power supply. Some potential application fields include:

1. Battery-Powered Devices: Portable electronic devices such as smartphones, tablets, and wearable devices can benefit from the MCP1725-3002E/SN's efficient power conversion and low quiescent current, extending battery life.

2. Industrial Control Systems: The voltage regulator can be used in industrial control systems to ensure stable and reliable power supply for microcontrollers, sensors, and other components.

3. Automotive Electronics: The MCP1725-3002E/SN can be employed in automotive electronics, providing regulated power to various subsystems,