MAX1651CPA

Product Overview

Category

MAX1651CPA belongs to the category of integrated circuits (ICs).

Use

The MAX1651CPA is commonly used as a voltage regulator in various electronic devices.

Characteristics

• Voltage regulation: The MAX1651CPA provides stable and regulated output voltage.
• Efficiency: It offers high efficiency, minimizing power loss.
• Compact package: The IC comes in a small-sized package, making it suitable for space-constrained applications.
• Wide input voltage range: It can handle a wide range of input voltages.
• Low dropout voltage: The MAX1651CPA has a low dropout voltage, ensuring efficient power conversion.

Package

The MAX1651CPA is available in a 8-pin PDIP (Plastic Dual In-line Package) format.

Essence

The essence of MAX1651CPA lies in its ability to regulate voltage efficiently, providing a stable power supply for electronic devices.

Packaging/Quantity

The MAX1651CPA is typically packaged in reels or tubes, with a quantity of 50 units per reel/tube.

Specifications

• Input Voltage Range: 2.7V to 11V
• Output Voltage Range: 1.25V to 10V
• Maximum Output Current: 100mA
• Dropout Voltage: 120mV at 100mA
• Quiescent Current: 60µA
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The MAX1651CPA has the following pin configuration:

1. GND (Ground): Connected to the ground reference of the circuit.
2. IN (Input): Receives the input voltage to be regulated.
3. EN (Enable): Controls the enable/disable state of the regulator.
4. FB (Feedback): Provides feedback to regulate the output voltage.
5. VOUT (Output): Outputs the regulated voltage.
6. NC (No Connection): This pin is not connected and should be left unconnected.
7. NC (No Connection): This pin is not connected and should be left unconnected.
8. VCC (Voltage Input): Connected to the positive supply voltage.

Functional Features

• Low dropout voltage: The MAX1651CPA maintains a low dropout voltage, ensuring efficient power conversion even when the input voltage is close to the output voltage.
• Current limit protection: It incorporates current limit protection, preventing excessive current flow and protecting the circuitry.
• Thermal shutdown: The IC includes thermal shutdown protection, which activates if the temperature exceeds a safe operating limit.
• Enable/disable control: The EN pin allows for easy enable/disable control of the regulator, conserving power when not needed.

Advantages and Disadvantages

Advantages

• High efficiency power conversion
• Wide input voltage range
• Compact package size
• Low dropout voltage
• Current limit protection
• Thermal shutdown protection
• Easy enable/disable control

Disadvantages

• Limited maximum output current (100mA)

Working Principles

The MAX1651CPA operates as a linear voltage regulator. It regulates the output voltage by comparing the feedback voltage (FB pin) with a reference voltage. If the output voltage drops below the desired level, the regulator adjusts the internal circuitry to increase the output voltage. Conversely, if the output voltage exceeds the desired level, the regulator reduces the output voltage.

Detailed Application Field Plans

The MAX1651CPA finds applications in various electronic devices that require stable and regulated power supply. Some common application fields include:

1. Battery-powered devices: The IC can regulate the battery voltage to provide a stable power source for portable electronics such as smartphones, tablets, and wearable devices.
2. Automotive electronics: It can be used in automotive applications to regulate voltage for various components, including sensors, actuators, and control modules.
3. Industrial equipment: The MAX1651CPA is suitable for industrial equipment that requires precise and stable power supply, such as control systems, motor drives, and measurement instruments.

Detailed and Complete Alternative Models

• LM317: A popular linear voltage regulator with adjustable output voltage and higher maximum output current compared to MAX1651CPA.
• LT1084: A high-current linear voltage regulator with low dropout voltage and adjustable output voltage.
• LM1117: A low dropout voltage regulator with fixed output voltage options and higher maximum output current than MAX1651CPA.

These alternative models offer similar functionality to the MAX1651CPA but may have different specifications and package options.

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