XC6121E437MR-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 units per reel

Specifications

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

Detailed Pin Configuration

The XC6121E437MR-G has a total of five pins arranged in the following configuration:

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Pin 1: VIN (Input Voltage) Pin 2: GND (Ground) Pin 3: EN (Enable) Pin 4: VOUT (Output Voltage) Pin 5: NC (No Connection)

Functional Features

• Low dropout voltage ensures stable output even with small input-output differentials.
• High accuracy provides precise regulation of output voltage.
• Low quiescent current minimizes power consumption during standby or idle mode.
• Built-in thermal shutdown protection prevents overheating.

Advantages and Disadvantages

Advantages: - Wide input voltage range allows for versatile applications. - Small package size enables space-saving designs. - Excellent load and line regulation ensure reliable performance. - Low quiescent current prolongs battery life in portable devices.

Disadvantages: - Limited maximum output current may restrict usage in high-power applications. - SOT-23-5 package may require additional heat dissipation measures in certain scenarios.

Working Principles

The XC6121E437MR-G is a linear voltage regulator that utilizes a pass transistor to regulate the output voltage. It operates by comparing the reference voltage with the feedback voltage, adjusting the pass transistor accordingly to maintain a stable output voltage. The dropout voltage is minimized through the use of a low resistance pass element.

Detailed Application Field Plans

The XC6121E437MR-G is suitable for various applications that require a regulated power supply. Some potential application fields include:

1. Battery-powered devices: Portable electronics such as smartphones, tablets, and wearable devices can benefit from the low quiescent current and wide input voltage range of the XC6121E437MR-G.
2. Industrial equipment: Control systems, sensors, and actuators often require stable and accurate power supplies, making this voltage regulator an ideal choice.
3. Automotive electronics: The XC6121E437MR-G's ability to operate in a wide temperature range makes it suitable for automotive applications, including infotainment systems, lighting controls, and engine management units.

Detailed and Complete Alternative Models

1. XC6121E437MR-G-AB: This variant offers enhanced load regulation for applications that demand tighter output voltage control.
2. XC6121E437MR-G-CD: Designed for automotive applications, this model features extended temperature range and increased ESD protection.
3. XC6121E437MR-G-EF: With an adjustable output voltage, this version provides flexibility for various system requirements.

Note: Please refer to the manufacturer's datasheet for a comprehensive list of alternative models.

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