MAX1976AEZT250+ - English Editing Encyclopedia Entry

Product Overview

Category: Integrated Circuits (ICs)

Use: The MAX1976AEZT250+ is a voltage regulator IC designed for use in various electronic devices. It provides a stable output voltage to power other components within the device.

Characteristics: - Input Voltage Range: 2.7V to 5.5V - Output Voltage: 2.5V - Maximum Output Current: 500mA - Low Dropout Voltage: 120mV at 100mA - Low Quiescent Current: 40µA - Thermal Shutdown Protection

Package: The MAX1976AEZT250+ is available in a small 6-pin SOT23 package, which is suitable for space-constrained applications.

Packaging/Quantity: The MAX1976AEZT250+ is typically sold in reels of 3000 units per reel.

Specifications

• Input Voltage Range: 2.7V to 5.5V
• Output Voltage: 2.5V
• Output Current: Up to 500mA
• Dropout Voltage: 120mV at 100mA
• Quiescent Current: 40µA
• Operating Temperature Range: -40°C to +85°C
• Shutdown Current: <1µA
• Thermal Resistance: 200°C/W junction-to-ambient

Pin Configuration

The MAX1976AEZT250+ has the following pin configuration:

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| | --| VIN GND |-- Pin 1: Ground --| VOUT EN |-- Pin 2: Enable --| FB NC |-- Pin 3: Not Connected --| NC NC |-- Pin 4: Not Connected --| NC NC |-- Pin 5: Not Connected --| NC VIN |-- Pin 6: Input Voltage |___________| ```

Functional Features

• Voltage Regulation: The MAX1976AEZT250+ provides a stable output voltage of 2.5V, regardless of input voltage fluctuations.
• Low Dropout Voltage: With a dropout voltage as low as 120mV at 100mA load, the IC ensures efficient power conversion even when the input voltage is close to the desired output voltage.
• Thermal Shutdown Protection: The IC incorporates thermal shutdown protection, which prevents damage due to excessive heat by disabling the regulator when the temperature exceeds a safe threshold.
• Enable Pin: The EN pin allows for easy on/off control of the regulator, helping to conserve power when the device is not in use.

Advantages and Disadvantages

Advantages: - Wide input voltage range allows for compatibility with various power sources. - Low dropout voltage ensures efficient power conversion. - Small package size makes it suitable for space-constrained applications. - Thermal shutdown protection prevents damage from overheating. - Enable pin provides convenient on/off control.

Disadvantages: - Limited maximum output current of 500mA may not be sufficient for high-power applications. - Not suitable for applications requiring output voltages other than 2.5V.

Working Principles

The MAX1976AEZT250+ operates as a linear voltage regulator. It uses a feedback mechanism to maintain a constant output voltage of 2.5V. When the input voltage fluctuates, the regulator adjusts its internal circuitry to ensure a stable output voltage. The enable pin allows the user to turn the regulator on or off as needed.

Application Field Plans

The MAX1976AEZT250+ can be used in various electronic devices that require a stable 2.5V power supply. Some potential application fields include: - Portable electronic devices - Battery-powered devices - IoT devices - Wearable devices - Embedded systems

Alternative Models

Here are some alternative models that can be considered as alternatives to the MAX1976AEZT250+: - LM1117-2.5: A popular voltage regulator IC with similar specifications and pin configuration. - LT1763-2.5: Another voltage regulator IC known for its low dropout voltage and high output current capability. - TPS79625: A voltage regulator IC with a fixed 2.5V output voltage and excellent line and load regulation.

These alternative models offer similar functionality and can be used as replacements depending on specific requirements.

In conclusion, the MAX1976AEZT250+ is a voltage regulator IC designed for stable power supply applications. With its low dropout voltage, thermal shutdown protection, and small package size, it offers several advantages for various electronic devices. However, its limited maximum output current and fixed output voltage may restrict its use in certain high-power applications or