MIC5317-3.3YM5-TR

Product Overview

Category

MIC5317-3.3YM5-TR belongs to the category of voltage regulators.

Use

This product is commonly used in electronic devices to regulate and stabilize the voltage supply.

Characteristics

• Voltage regulation: The MIC5317-3.3YM5-TR provides a stable output voltage of 3.3V.
• Efficiency: It offers high efficiency, ensuring minimal power loss during operation.
• Low dropout voltage: The device has a low dropout voltage, enabling it to operate even when the input voltage is close to the desired output voltage.
• Thermal shutdown protection: It includes thermal shutdown protection to prevent overheating and damage to the device.
• Small package size: The MIC5317-3.3YM5-TR comes in a compact package, making it suitable for space-constrained applications.
• Low quiescent current: It has a low quiescent current, reducing power consumption when the load is light.

Package and Quantity

The MIC5317-3.3YM5-TR is available in a surface-mount SOT-23-5 package. It is typically sold in reels containing a specified quantity of units.

Specifications

• Input voltage range: 2.3V to 5.5V
• Output voltage: 3.3V
• Maximum output current: 500mA
• Dropout voltage: 150mV at 100mA
• Quiescent current: 40µA (typical)
• Operating temperature range: -40°C to +125°C

Pin Configuration

The MIC5317-3.3YM5-TR has five pins arranged as follows:

```

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| | --| VIN GND |-- Pin 1: Ground --| VOUT EN |-- Pin 2: Enable (active high) --| FB NC |-- Pin 3: No connection --| NC NC |-- Pin 4: No connection --| VIN GND |-- Pin 5: Input voltage |___________| ```

Functional Features

• Voltage regulation: The MIC5317-3.3YM5-TR maintains a stable output voltage of 3.3V, regardless of input voltage fluctuations.
• Enable pin: The device includes an enable pin that allows the user to control the regulator's operation. When the enable pin is high, the regulator is active, and when it is low, the regulator enters a low-power shutdown mode.
• Thermal shutdown protection: To prevent overheating, the MIC5317-3.3YM5-TR incorporates thermal shutdown protection. If the temperature exceeds a certain threshold, the device shuts down temporarily until it cools down.
• Short-circuit protection: The regulator has built-in short-circuit protection, safeguarding against excessive current flow and potential damage.

Advantages and Disadvantages

Advantages

• High efficiency, minimizing power loss.
• Compact package size suitable for space-constrained applications.
• Low dropout voltage enables operation with small input-output voltage differentials.
• Thermal shutdown protection prevents overheating.
• Low quiescent current reduces power consumption.

Disadvantages

• Limited maximum output current of 500mA.
• Noisy output voltage under certain load conditions.

Working Principles

The MIC5317-3.3YM5-TR is a linear voltage regulator that uses a feedback mechanism to maintain a constant output voltage. It compares the output voltage with a reference voltage and adjusts the internal circuitry to achieve the desired output voltage. The regulator operates by controlling the flow of current between the input and output pins, ensuring a stable output voltage regardless of input voltage variations.

Application Field Plans

The MIC5317-3.3YM5-TR finds applications in various electronic devices that require a stable 3.3V power supply. Some potential application fields include:

1. Mobile devices: Smartphones, tablets, and portable media players often utilize the MIC5317-3.3YM5-TR to regulate the voltage for powering the internal circuitry.
2. IoT devices: Internet of Things (IoT) devices, such as sensors and wireless modules, benefit from the stable voltage provided by the regulator.
3. Wearable electronics: Fitness trackers, smartwatches, and other wearable devices rely on the MIC5317-3.3YM5-TR to ensure consistent power delivery.
4. Embedded systems: Microcontrollers, development boards, and other embedded systems employ this regulator to maintain a reliable power source.

Alternative Models

For those seeking alternative options, several similar voltage regulators are available in the market. Some notable alternatives to the MIC5317-3.3YM5-TR include:

1. LM1117-3.3: A popular linear voltage regulator