XC6121A421MR-G

Product Overview

• Category: Integrated Circuit (IC)
• Use: Voltage Regulator
• Characteristics: Low dropout, high accuracy, low quiescent current
• Package: SOT-23-5
• Essence: Linear voltage regulator
• Packaging/Quantity: Tape and Reel, 3000 pieces per reel

Specifications

• Input Voltage Range: 2.5V to 6.0V
• Output Voltage Range: 1.2V to 5.5V
• Dropout Voltage: 200mV @ 100mA
• Quiescent Current: 30µA
• Load Regulation: ±0.5%
• Line Regulation: ±0.3%
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The XC6121A421MR-G has a total of five pins arranged as follows:

1. VIN: Input voltage pin
2. GND: Ground pin
3. EN: Enable pin
4. VOUT: Output voltage pin
5. NC: No connection pin

Functional Features

• Low dropout voltage ensures stable output even with small input-output differentials.
• High accuracy provides precise voltage regulation for sensitive applications.
• Low quiescent current minimizes power consumption in standby mode.
• Enable pin allows for easy on/off control of the regulator.

Advantages and Disadvantages

Advantages: - Wide input voltage range enables compatibility with various power sources. - Small package size makes it suitable for space-constrained designs. - Excellent load and line regulation ensure stable output under varying conditions.

Disadvantages: - Limited maximum output current may not be suitable for high-power applications. - Lack of adjustable output voltage limits flexibility in certain scenarios.

Working Principles

The XC6121A421MR-G is a linear voltage regulator that uses a pass transistor to regulate the output voltage. It operates by comparing the reference voltage with the feedback voltage and adjusting the pass transistor accordingly. This feedback loop ensures that the output voltage remains constant despite changes in input voltage or load conditions.

Detailed Application Field Plans

The XC6121A421MR-G is commonly used in various electronic devices, including:

1. Battery-powered portable devices: Provides stable voltage for microcontrollers, sensors, and other components.
2. Automotive applications: Regulates voltage for automotive electronics, such as infotainment systems and lighting modules.
3. Industrial equipment: Ensures reliable power supply for control systems, motor drivers, and communication modules.

Detailed and Complete Alternative Models

1. XC6121A421MR-G-7: Same specifications but with a different package (SOT-89-5).
2. XC6121A421MR-G-8: Similar specifications but with adjustable output voltage.
3. XC6121A421MR-G-9: Higher maximum output current (500mA) but with slightly higher dropout voltage.

These alternative models offer flexibility in terms of package options, adjustable output voltage, and increased output current capacity.

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