MIC5239-1.8YMM

Product Overview

Category

MIC5239-1.8YMM belongs to the category of voltage regulators.

Use

It is commonly used to regulate and stabilize voltage in electronic circuits.

Characteristics

• Package: The MIC5239-1.8YMM comes in a small surface-mount package.
• Essence: It is a low-dropout (LDO) linear voltage regulator.
• Packaging/Quantity: Typically, it is packaged in reels or tubes containing multiple units.

Specifications

The following are the specifications of MIC5239-1.8YMM:

• Output Voltage: 1.8V
• Input Voltage Range: 2.5V to 16V
• Dropout Voltage: 200mV at 150mA load current
• Quiescent Current: 75µA
• Load Regulation: ±0.1%
• Line Regulation: ±0.05%
• Operating Temperature Range: -40°C to +125°C

Pin Configuration

The pin configuration of MIC5239-1.8YMM is as follows:

```

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| | --| VIN VOUT |-- --| GND BYP |-- |___________| ```

• VIN: Input voltage pin
• VOUT: Output voltage pin
• GND: Ground pin
• BYP: Bypass capacitor pin

Functional Features

The functional features of MIC5239-1.8YMM include:

• Low dropout voltage: Enables efficient regulation even with small input-output differentials.
• Low quiescent current: Ensures minimal power consumption when the device is idle.
• Excellent line and load regulation: Provides stable output voltage under varying conditions.
• Thermal shutdown protection: Safeguards the device from overheating.

Advantages and Disadvantages

Advantages: - Compact surface-mount package - Wide input voltage range - Low dropout voltage - Excellent line and load regulation - Thermal shutdown protection

Disadvantages: - Limited output voltage options (only 1.8V in this model) - Relatively higher quiescent current compared to some other LDO regulators

Working Principles

MIC5239-1.8YMM operates based on the principle of a low-dropout linear voltage regulator. It uses a pass transistor to regulate the output voltage by adjusting the resistance between the input and output terminals. The device compares the output voltage with a reference voltage and adjusts the pass transistor accordingly to maintain a stable output.

Detailed Application Field Plans

MIC5239-1.8YMM finds applications in various electronic devices and systems, including but not limited to:

1. Battery-powered devices: Portable electronics, such as smartphones, tablets, and wearable devices, benefit from its low dropout voltage and low quiescent current.
2. Industrial control systems: It can be used to regulate voltage in control circuits, ensuring stable operation.
3. Automotive electronics: The device's wide input voltage range and thermal shutdown protection make it suitable for automotive applications.
4. Communication equipment: It can be employed in routers, modems, and other communication devices to provide regulated power supply.

Detailed and Complete Alternative Models

Some alternative models that offer similar functionality to MIC5239-1.8YMM include:

1. LM1117-1.8: Manufactured by Texas Instruments, it is a popular LDO regulator with a fixed 1.8V output voltage.
2. LT1763-1.8: Produced by Linear Technology, it offers a low dropout voltage and adjustable output voltage.
3. ADP3339-1.8: An LDO regulator from Analog Devices, known for its low noise performance and high accuracy.

These alternative models can be considered based on specific requirements and design constraints.

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