MAX686EEE

Product Overview

• Category: Integrated Circuit (IC)
• Use: Voltage Regulator
• Characteristics: Low Dropout, High Current, Adjustable Output
• Package: Triple-E
• Essence: Efficient voltage regulation for various electronic devices
• Packaging/Quantity: Tape and Reel, 2500 units per reel

Specifications

• Input Voltage Range: 2.5V to 16V
• Output Voltage Range: 1.25V to 13.8V
• Output Current: Up to 3A
• Dropout Voltage: 300mV at 3A
• Line Regulation: ±0.05% typical
• Load Regulation: ±0.1% typical
• Quiescent Current: 80µA typical
• Operating Temperature Range: -40°C to +125°C

Pin Configuration

The MAX686EEE has a total of 5 pins:

1. VIN - Input Voltage Pin
2. GND - Ground Pin
3. ADJ - Output Voltage Adjustment Pin
4. VOUT - Output Voltage Pin
5. NC - No Connection Pin

Functional Features

• Low Dropout: The MAX686EEE provides efficient voltage regulation even when the input voltage is close to the desired output voltage.
• High Current Capability: With an output current of up to 3A, it can power a wide range of electronic devices.
• Adjustable Output: The output voltage can be adjusted within the specified range using an external resistor.

Advantages and Disadvantages

Advantages

• High current capability allows powering various electronic devices.
• Low dropout voltage ensures efficient voltage regulation.
• Adjustable output voltage provides flexibility in different applications.
• Compact Triple-E package saves board space.

Disadvantages

• Limited output voltage range compared to some other voltage regulators.
• Quiescent current may be higher than certain low-power applications require.

Working Principles

The MAX686EEE is a linear voltage regulator that uses a pass transistor to regulate the output voltage. It operates by comparing the reference voltage with a fraction of the output voltage, adjusting the pass transistor accordingly to maintain a stable output voltage. The dropout voltage is minimized by utilizing a low-resistance pass element.

Detailed Application Field Plans

The MAX686EEE is suitable for various applications that require efficient voltage regulation and high current capability. Some potential application fields include:

1. Power Supplies: It can be used in power supply circuits for consumer electronics, industrial equipment, and automotive systems.
2. Battery-Powered Devices: The low dropout voltage makes it ideal for battery-powered devices such as portable audio players, handheld instruments, and wireless communication devices.
3. Embedded Systems: The adjustable output voltage allows it to be used in embedded systems where different voltage levels are required for different components.

Detailed and Complete Alternative Models

1. MAX687EEE: Similar to MAX686EEE but with an extended input voltage range up to 20V.
2. MAX688EEE: Higher output current capability of up to 5A.
3. MAX689EEE: Lower quiescent current for ultra-low-power applications.

These alternative models offer variations in input voltage range, output current, and quiescent current to cater to specific requirements.

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