MIC5305-1.8BD5-TR

Product Overview

Category

The MIC5305-1.8BD5-TR belongs to the category of voltage regulators.

Use

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

Characteristics

• Voltage regulation: The MIC5305-1.8BD5-TR provides a stable output voltage of 1.8V.
• Efficiency: It offers high efficiency, ensuring minimal power loss during operation.
• Low dropout voltage: The regulator 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 incorporates thermal shutdown protection to prevent damage due to excessive heat.
• Small package size: The MIC5305-1.8BD5-TR comes in a compact package, making it suitable for space-constrained applications.
• Low quiescent current: It features low quiescent current consumption, reducing power consumption in standby mode.

Package and Quantity

The MIC5305-1.8BD5-TR is available in a small 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: 1.8V
• Maximum output current: 150mA
• Dropout voltage: 200mV (typical)
• Quiescent current: 40µA (typical)
• Operating temperature range: -40°C to +85°C

Pin Configuration

The MIC5305-1.8BD5-TR has five pins arranged as follows:

```

---

| | --| VIN GND |-- --| EN VOUT|-- --| FB |-- --| NC |-- |___________| ```

• VIN: Input voltage pin
• GND: Ground pin
• EN: Enable pin (logic high enables the regulator)
• VOUT: Output voltage pin
• FB: Feedback pin for voltage regulation
• NC: No connection pin

Functional Features

• Voltage regulation: The MIC5305-1.8BD5-TR ensures a stable output voltage of 1.8V, regardless of input voltage fluctuations.
• Thermal shutdown protection: It incorporates thermal shutdown protection to prevent overheating and subsequent damage.
• Low dropout voltage: The low dropout voltage allows the regulator to operate efficiently even when the input voltage is close to the desired output voltage.
• Low quiescent current: The low quiescent current consumption minimizes power consumption during standby or idle periods.
• Fast transient response: The regulator quickly responds to changes in load conditions, maintaining a stable output voltage.

Advantages and Disadvantages

Advantages

• High efficiency
• Compact package size
• Wide input voltage range
• Thermal shutdown protection
• Low dropout voltage
• Low quiescent current

Disadvantages

• Limited maximum output current (150mA)

Working Principles

The MIC5305-1.8BD5-TR operates as a linear voltage regulator. It uses a feedback mechanism to maintain a constant output voltage. When the input voltage exceeds the desired output voltage, the regulator reduces it to the required level using internal circuitry. Conversely, if the input voltage drops below the desired output voltage, the regulator compensates by boosting it.

Application Field Plans

The MIC5305-1.8BD5-TR finds applications in various electronic devices that require a stable 1.8V power supply. Some potential application fields include:

1. Mobile devices: Smartphones, tablets, and portable media players often require a regulated 1.8V supply for powering various components.
2. IoT devices: Internet of Things (IoT) devices, such as sensors and wireless modules, can benefit from the stable voltage provided by the MIC5305-1.8BD5-TR.
3. Wearable electronics: Fitness trackers, smartwatches, and other wearable devices often rely on a regulated 1.8V power source.
4. Embedded systems: Microcontrollers, development boards, and other embedded systems may utilize this regulator to ensure stable operation.

Alternative Models

Here are some alternative models that offer similar functionality:

1. MIC5205-1.8YM5-TR
2. LP2985-18DBVR
3. MCP1700-1802E/TO

These alternatives can be considered based on specific requirements and availability.

In conclusion, the MIC5305-1.8BD5-TR is a voltage regulator that provides a stable 1.8V output voltage. It offers high efficiency, low dropout voltage, and thermal shutdown protection. With its compact package size and wide input voltage range, it finds applications in