MIC5258-1.2BM5-TR

Product Overview

Category

MIC5258-1.2BM5-TR belongs to the category of voltage regulators.

Use

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

Characteristics

• Voltage regulation: The MIC5258-1.2BM5-TR provides a stable output voltage.
• Low dropout voltage: It operates efficiently even when the input voltage is close to the desired output voltage.
• Low quiescent current: The regulator consumes minimal current when not delivering power.
• Thermal shutdown protection: It includes built-in protection against overheating.

Package

The MIC5258-1.2BM5-TR is available in a small SOT-23-5 package, which is suitable for compact circuit designs.

Essence

The essence of this product lies in its ability to maintain a constant and reliable voltage output, ensuring the proper functioning of electronic devices.

Packaging/Quantity

The MIC5258-1.2BM5-TR is typically packaged in reels or tape and reel packaging, with a quantity of 3000 units per reel.

Specifications

• Input voltage range: 2.3V to 5.5V
• Output voltage: 1.2V
• Maximum output current: 150mA
• Dropout voltage: 120mV at 100mA
• Quiescent current: 40µA (typical)
• Operating temperature range: -40°C to +125°C

Detailed Pin Configuration

The MIC5258-1.2BM5-TR has five pins arranged as follows:

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Pin 1: VIN (Input voltage) Pin 2: GND (Ground) Pin 3: EN (Enable) Pin 4: BYP (Bypass capacitor) Pin 5: VOUT (Output voltage)

Functional Features

• Voltage regulation: The MIC5258-1.2BM5-TR maintains a stable output voltage of 1.2V, regardless of input voltage fluctuations.
• Low dropout voltage: It can operate with a minimal voltage difference between the input and output, ensuring efficient power delivery.
• Enable pin: The EN pin allows for easy on/off control of the regulator.
• Bypass capacitor: The BYP pin is used to connect an external bypass capacitor for improved stability and noise reduction.

Advantages and Disadvantages

Advantages

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

Disadvantages

• Limited maximum output current (150mA)
• Fixed output voltage (1.2V)

Working Principles

The MIC5258-1.2BM5-TR utilizes a voltage reference, error amplifier, and pass transistor to regulate the output voltage. When the input voltage exceeds the desired output voltage, the pass transistor adjusts its resistance to maintain a constant output voltage. Conversely, if the input voltage drops below the desired output voltage, the pass transistor increases its resistance to compensate and provide a stable output.

Detailed Application Field Plans

The MIC5258-1.2BM5-TR finds applications in various electronic devices and systems, including:

1. Battery-powered devices: It ensures a stable voltage supply for portable electronics such as smartphones, tablets, and wearable devices.
2. IoT devices: The regulator is suitable for low-power IoT sensors and modules that require a reliable power source.
3. Embedded systems: It can be used in microcontroller-based systems, providing a regulated voltage for proper operation.
4. Automotive electronics: The MIC5258-1.2BM5-TR is suitable for automotive applications, including infotainment systems, lighting controls, and sensor modules.

Detailed and Complete Alternative Models

1. MIC5205-1.2YM5-TR: Similar to MIC5258-1.2BM5-TR, but with a different package (SOT-23-5) and slightly lower dropout voltage.
2. LP2985-33DBVR: A voltage regulator with a fixed output voltage of 3.3V, suitable for applications requiring a different voltage level.
3. LT1763CS8-1.2#PBF: A high-performance voltage regulator with adjustable output voltage and higher maximum output current.

These alternative models offer similar functionality and can be considered as substitutes based on specific requirements and design constraints.

In conclusion, the MIC5258-1.2BM5-TR is a voltage regulator that provides stable and regulated voltage output. Its compact size, low dropout voltage, and wide input voltage range make it suitable for various electronic applications. However, it has limitations in terms of maximum output current and fixed output voltage. Understanding its specifications