XC6121E745MR-G

Product Overview

Category

XC6121E745MR-G belongs to the category of voltage regulators.

Use

It is commonly used for regulating voltage in electronic circuits.

Characteristics

• Package: The XC6121E745MR-G comes in a small SOT-25 package.
• Essence: This voltage regulator is designed to provide stable and reliable voltage output.
• Packaging/Quantity: It is typically sold in reels or tubes, with a quantity of 3000 units per reel.

Specifications

The specifications of XC6121E745MR-G are as follows:

• Input Voltage Range: 2.5V to 6.0V
• Output Voltage: 4.75V ± 2%
• Maximum Output Current: 150mA
• Dropout Voltage: 200mV (at 100mA)
• Quiescent Current: 20µA (typical)

Detailed Pin Configuration

The XC6121E745MR-G has three pins:

1. VIN: Input voltage pin
2. VOUT: Output voltage pin
3. GND: Ground pin

Functional Features

• Low dropout voltage: The XC6121E745MR-G has a low dropout voltage, ensuring efficient power conversion even when the input voltage is close to the desired output voltage.
• Low quiescent current: With a typical quiescent current of only 20µA, this voltage regulator minimizes power consumption when the load is light.
• Overcurrent protection: It incorporates overcurrent protection to safeguard the circuit from excessive current flow.

Advantages and Disadvantages

Advantages

• Small package size allows for space-saving designs.
• Wide input voltage range provides flexibility in various applications.
• Low dropout voltage ensures efficient power conversion.
• Overcurrent protection enhances circuit reliability.

Disadvantages

• Limited maximum output current may not be suitable for high-power applications.
• Output voltage is fixed and cannot be adjusted.

Working Principles

The XC6121E745MR-G operates based on the principle of a linear voltage regulator. It uses a pass transistor to regulate the output voltage by adjusting the resistance between the input and output terminals. This ensures that the output voltage remains stable even when the input voltage fluctuates.

Detailed Application Field Plans

The XC6121E745MR-G can be used in various electronic devices and circuits, including but not limited to:

1. Battery-powered devices: It can regulate the voltage supplied by batteries, ensuring consistent power delivery to the connected components.
2. Portable electronics: The small package size makes it suitable for compact and portable devices such as smartphones, tablets, and wearable devices.
3. IoT devices: It can be used in Internet of Things (IoT) devices that require stable voltage supply for sensors, microcontrollers, and communication modules.

Detailed and Complete Alternative Models

Some alternative models to XC6121E745MR-G include:

1. XC6206P332MR-G: This voltage regulator has similar characteristics but offers a different output voltage of 3.3V.
2. XC6220B182MR-G: It provides a higher output voltage of 1.8V and has a slightly higher maximum output current of 200mA.
3. XC6219B122MR-G: This model offers a lower output voltage of 1.2V and has a maximum output current of 150mA.

These alternative models can be considered based on specific application requirements and voltage level needs.

In conclusion, the XC6121E745MR-G is a voltage regulator with a small package size, low dropout voltage, and overcurrent protection. It finds applications in battery-powered devices, portable electronics, and IoT devices. While it has limitations in terms of maximum output current and fixed output voltage, alternative models are available to suit different voltage requirements.