MIC37139-1.8BS

Product Overview

Category

MIC37139-1.8BS belongs to the category of voltage regulators.

Use

This product is primarily used for regulating voltage in electronic circuits.

Characteristics

• Voltage regulation capability
• Compact package size
• Low power consumption
• Wide input voltage range
• High efficiency

Package

MIC37139-1.8BS is available in a small surface-mount package.

Essence

The essence of this product lies in its ability to provide stable and regulated voltage output, ensuring proper functioning of electronic devices.

Packaging/Quantity

MIC37139-1.8BS is typically packaged in reels or tubes, with a quantity of 2500 units per reel/tube.

Specifications

• Input Voltage Range: 2.7V to 5.5V
• Output Voltage: 1.8V
• Output Current: Up to 500mA
• Dropout Voltage: 200mV (typical)
• Quiescent Current: 45µA (typical)
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

MIC37139-1.8BS features the following pin configuration:

1. VIN: Input voltage pin
2. GND: Ground pin
3. EN: Enable pin
4. VOUT: Output voltage pin
5. BYP: Bypass capacitor pin

Functional Features

• Low dropout voltage ensures efficient voltage regulation even when the input voltage is close to the desired output voltage.
• Built-in thermal shutdown protection prevents damage due to excessive temperature.
• Short-circuit current limiting protects the device and connected components from excessive current flow.
• Enable pin allows for easy on/off control of the regulator.

Advantages and Disadvantages

Advantages

• Wide input voltage range makes it suitable for various applications.
• Compact package size enables space-saving designs.
• Low power consumption helps prolong battery life in portable devices.
• High efficiency reduces power dissipation and heat generation.

Disadvantages

• Limited output current may not be sufficient for high-power applications.
• Dropout voltage may cause a slight decrease in the output voltage under heavy load conditions.

Working Principles

MIC37139-1.8BS utilizes a voltage reference, error amplifier, and pass transistor to regulate the output voltage. The input voltage is compared with the reference voltage, and the error amplifier adjusts the pass transistor to maintain a stable output voltage.

Detailed Application Field Plans

MIC37139-1.8BS finds applications in various electronic devices, including: - Mobile phones - Portable media players - Digital cameras - Wireless communication devices - Battery-powered devices

Detailed and Complete Alternative Models

Some alternative models that can be considered as alternatives to MIC37139-1.8BS are: - LM317T - LT1763 - ADP3339

These models offer similar voltage regulation capabilities and can be used as substitutes based on specific requirements.

In conclusion, MIC37139-1.8BS is a voltage regulator with excellent characteristics, compact packaging, and wide application possibilities. Its efficient voltage regulation, low power consumption, and thermal protection make it a reliable choice for various electronic devices. However, its limited output current and dropout voltage should be considered when selecting the appropriate model for high-power applications.