MAX6473TA28BD3+T

Product Overview

• Category: Integrated Circuit (IC)
• Use: Voltage Regulator
• Characteristics: Low Dropout, High Efficiency
• Package: TDFN-8
• Essence: Regulates voltage with minimal power loss
• Packaging/Quantity: Tape and Reel, 3000 units per reel

Specifications

• Input Voltage Range: 2.5V to 6.5V
• Output Voltage: 2.8V
• Maximum Output Current: 300mA
• Dropout Voltage: 120mV at 100mA
• Quiescent Current: 40µA
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

1. GND: Ground connection
2. IN: Input voltage supply
3. EN: Enable pin for turning the regulator on/off
4. BYP: Bypass capacitor connection
5. FB: Feedback pin for setting the output voltage
6. OUT: Regulated output voltage
7. NC: No connection
8. VOUT: Output voltage monitoring pin

Functional Features

• Low dropout voltage ensures efficient regulation even with low input voltages.
• High efficiency design minimizes power dissipation.
• Enable pin allows for easy on/off control of the regulator.
• Output voltage can be set using an external resistor divider connected to the feedback pin.
• Built-in protection features such as thermal shutdown and current limit ensure safe operation.

Advantages and Disadvantages

Advantages: - Low dropout voltage enables efficient regulation in low voltage applications. - High efficiency design reduces power consumption. - Small package size allows for space-saving integration. - Built-in protection features enhance reliability.

Disadvantages: - Limited maximum output current may not be suitable for high-power applications. - Narrow input voltage range restricts compatibility with certain systems.

Working Principles

The MAX6473TA28BD3+T is a voltage regulator that operates by maintaining a constant output voltage despite variations in the input voltage. It achieves this through a feedback mechanism that continuously adjusts the internal circuitry to compensate for changes in load and input conditions. The regulator uses a low dropout design, which means it can maintain regulation even when the input voltage is only slightly higher than the desired output voltage. This feature allows for efficient operation in battery-powered devices or applications with limited power supply headroom.

Detailed Application Field Plans

The MAX6473TA28BD3+T is commonly used in various electronic devices and systems where a stable and regulated voltage supply is required. Some typical application fields include:

1. Portable Electronics: Battery-powered devices such as smartphones, tablets, and portable media players benefit from the low dropout and high efficiency characteristics of the MAX6473TA28BD3+T. It ensures consistent performance and extends battery life.

2. Industrial Control Systems: The voltage regulator is suitable for powering microcontrollers, sensors, and other components in industrial control systems. Its small package size and low power consumption make it ideal for space-constrained environments.

3. Automotive Electronics: The regulator can be employed in automotive applications to provide a stable voltage supply for various electronic modules, including infotainment systems, lighting controls, and engine management units.

4. IoT Devices: Internet of Things (IoT) devices often operate on low voltages and require efficient power management. The MAX6473TA28BD3+T meets these requirements, making it suitable for IoT applications such as smart home devices, wearables, and environmental sensors.

Detailed and Complete Alternative Models

1. LM1117-2.8: A popular alternative with similar specifications and pin configuration.
2. LT1763-2.8: Offers lower dropout voltage and higher maximum output current.
3. TPS7A4901: Provides adjustable output voltage and higher maximum output current.

These alternative models offer similar functionality and can be considered based on specific application requirements.

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