MCP1755-3302E/MC

Product Overview

Category

The MCP1755-3302E/MC belongs to the category of voltage regulators.

Use

It is primarily used for regulating voltage in electronic circuits.

Characteristics

• Input Voltage Range: 3.6V to 16V
• Output Voltage: 3.3V
• Maximum Output Current: 150mA
• Low Dropout Voltage: 210mV (typical)
• Low Quiescent Current: 120µA (typical)
• High PSRR: 70dB at 1kHz (typical)
• Thermal Shutdown Protection
• Short Circuit Current Limiting
• SOT-23-3 Package

Packaging/Quantity

The MCP1755-3302E/MC is available in a SOT-23-3 package. It is typically sold in reels containing 3000 units.

Specifications

• Input Voltage Range: 3.6V to 16V
• Output Voltage: 3.3V ± 2%
• Output Current: Up to 150mA
• Dropout Voltage: 210mV (typical) at 100mA
• Quiescent Current: 120µA (typical)
• Line Regulation: 0.04%/V (typical)
• Load Regulation: 0.1% (typical)
• Ripple Rejection: 70dB at 1kHz (typical)
• Operating Temperature Range: -40°C to +125°C
• Thermal Shutdown Protection: Yes
• Short Circuit Current Limiting: Yes

Pin Configuration

The MCP1755-3302E/MC has three pins arranged as follows:

```

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| | --| V+ |-- --| GND |-- |____| ```

Pin 1: V+ (Input Voltage) Pin 2: GND (Ground) Pin 3: VOUT (Output Voltage)

Functional Features

• Voltage Regulation: The MCP1755-3302E/MC provides a stable output voltage of 3.3V, regardless of input voltage fluctuations.
• Low Dropout Voltage: With a dropout voltage as low as 210mV, the regulator can operate efficiently even when the input voltage is close to the desired output voltage.
• Low Quiescent Current: The device consumes only 120µA of current in standby mode, minimizing power consumption.
• Thermal Shutdown Protection: The regulator includes built-in thermal shutdown protection, which prevents damage due to excessive temperature.
• Short Circuit Current Limiting: It features short circuit current limiting to protect the device and the connected circuitry from damage in case of a short circuit.

Advantages and Disadvantages

Advantages

• Wide input voltage range allows for versatile applications.
• Low dropout voltage ensures efficient operation.
• Low quiescent current minimizes power consumption.
• Thermal shutdown protection prevents overheating.
• Short circuit current limiting protects the device and connected circuitry.

Disadvantages

• Limited maximum output current of 150mA may not be suitable for high-power applications.
• SOT-23-3 package may require additional space on the PCB.

Working Principles

The MCP1755-3302E/MC is a linear voltage regulator that uses a pass transistor to regulate the output voltage. It compares the reference voltage with the feedback voltage and adjusts the pass transistor accordingly to maintain a stable output voltage of 3.3V. The regulator operates by dissipating excess voltage as heat, resulting in a low dropout voltage.

Detailed Application Field Plans

The MCP1755-3302E/MC is commonly used in various electronic devices and applications, including but not limited to: - Battery-powered devices - Portable electronics - IoT devices - Embedded systems - Consumer electronics

Detailed and Complete Alternative Models

Some alternative models that offer similar functionality to the MCP1755-3302E/MC include: - LM1117-3.3 - LT1763-3.3 - TPS73633

These alternatives provide comparable voltage regulation, dropout voltage, and current capabilities, offering flexibility in choosing the most suitable option for specific applications.

In conclusion, the MCP1755-3302E/MC is a voltage regulator with a wide input voltage range, low dropout voltage, and low quiescent current. It provides stable 3.3V output voltage and offers thermal shutdown protection and short circuit current limiting. While it has limitations in terms of maximum output current and package size, it finds applications in various electronic devices and has alternative models available in the market.