MAX6347XR33-T

Product Overview

• Category: Voltage Regulator
• Use: Provides a regulated output voltage for electronic circuits
• Characteristics: High precision, low dropout voltage, low quiescent current
• Package: SOT23-3
• Essence: Integrated circuit voltage regulator
• Packaging/Quantity: Tape and reel, 3000 units per reel

Specifications

• Input Voltage Range: 2.5V to 6.5V
• Output Voltage: 3.3V
• Output Current: Up to 250mA
• Dropout Voltage: 120mV at 100mA
• Quiescent Current: 5µA (typical)
• Line Regulation: 0.02%/V
• Load Regulation: 0.1%/mA
• Operating Temperature Range: -40°C to +85°C

Pin Configuration

The MAX6347XR33-T has three pins in the SOT23-3 package:

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

Functional Features

• High accuracy and stability: The MAX6347XR33-T provides a precise and stable output voltage of 3.3V, ensuring reliable operation of electronic circuits.
• Low dropout voltage: With a dropout voltage as low as 120mV, this voltage regulator can operate efficiently even when the input voltage is close to the desired output voltage.
• Low quiescent current: The device consumes only 5µA of current when in standby mode, minimizing power consumption and extending battery life.
• Thermal shutdown protection: The regulator includes built-in thermal shutdown protection, preventing damage due to excessive heat.

Advantages and Disadvantages

Advantages: - High precision and stability - Low dropout voltage - Low quiescent current - Thermal shutdown protection

Disadvantages: - Limited output current capacity (up to 250mA)

Working Principles

The MAX6347XR33-T is a linear voltage regulator that uses a feedback mechanism to maintain a constant output voltage. It compares the output voltage with a reference voltage and adjusts the internal circuitry to ensure the desired output voltage is maintained. The device operates by dissipating excess input voltage as heat, which is why it has a dropout voltage.

Detailed Application Field Plans

The MAX6347XR33-T is commonly used in various electronic applications, including:

1. Battery-powered devices: It provides a stable voltage supply for portable electronics such as smartphones, tablets, and wearable devices.
2. Embedded systems: The voltage regulator ensures reliable operation of microcontrollers, sensors, and other components in embedded systems.
3. Industrial automation: It is suitable for powering control circuits, sensors, and communication modules in industrial automation equipment.
4. Automotive electronics: The regulator can be used in automotive applications to power microcontrollers, sensors, and infotainment systems.

Detailed and Complete Alternative Models

1. LM1117-3.3: A popular alternative with similar specifications and pin configuration.
2. LT1763-3.3: Offers higher output current capability and lower dropout voltage compared to the MAX6347XR33-T.
3. MCP1703-3302E: Provides a low-cost alternative with comparable performance.

These alternative models offer different trade-offs in terms of price, performance, and package options, allowing designers to choose the most suitable option for their specific requirements.

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