MAX865EUA+T

Product Overview

• Category: Integrated Circuit (IC)
• Use: Voltage Regulator
• Characteristics: Low-dropout, high-efficiency, adjustable output voltage
• Package: 8-pin micro small outline package (MSOP)
• Essence: Power management solution for various electronic devices
• Packaging/Quantity: Tape and reel packaging, 2500 units per reel

Specifications

• Input Voltage Range: 2.5V to 16V
• Output Voltage Range: 1.25V to 15V
• Dropout Voltage: 200mV at 100mA load current
• Maximum Output Current: 500mA
• Line Regulation: ±0.05% typical
• Load Regulation: ±0.1% typical
• Quiescent Current: 75µA typical
• Operating Temperature Range: -40°C to +85°C

Pin Configuration

The MAX865EUA+T features an 8-pin MSOP package with the following pin configuration:

1. GND: Ground reference
2. FB: Feedback pin for adjusting the output voltage
3. EN: Enable pin for turning the regulator on/off
4. NC: No connection
5. VOUT: Regulated output voltage
6. NC: No connection
7. VIN: Input voltage
8. BYP: Bypass capacitor connection

Functional Features

• Low dropout voltage ensures efficient power conversion even with low input voltages.
• Adjustable output voltage allows flexibility in various applications.
• Excellent line and load regulation provide stable output voltage under different conditions.
• Low quiescent current minimizes power consumption during standby or idle modes.
• Thermal shutdown and current limit protection ensure safe operation.

Advantages and Disadvantages

Advantages: - Wide input voltage range enables compatibility with different power sources. - High efficiency results in reduced power dissipation and longer battery life. - Small package size allows for space-saving integration in compact designs. - Adjustable output voltage provides versatility for various electronic systems.

Disadvantages: - Limited maximum output current may not be suitable for high-power applications. - Dropout voltage may cause a slight voltage drop across the regulator.

Working Principles

The MAX865EUA+T is a low-dropout voltage regulator that maintains a stable output voltage despite variations in input voltage and load conditions. It utilizes a pass transistor to regulate the output voltage based on the feedback received from the FB pin. The EN pin controls the enable/disable state of the regulator.

When the input voltage (VIN) is within the specified range, the regulator operates by maintaining a constant voltage at the output pin (VOUT). The BYP pin is connected to a bypass capacitor to improve stability and reduce noise.

Detailed Application Field Plans

The MAX865EUA+T finds application in various electronic devices, including but not limited to: - Battery-powered portable devices - Wireless communication systems - Industrial control systems - Automotive electronics - Medical equipment

Its low dropout voltage, adjustable output voltage, and small package size make it suitable for these applications where efficient power management and space constraints are crucial.

Detailed and Complete Alternative Models

1. LM1117-ADJ: Adjustable voltage regulator with similar specifications and package type.
2. LT1763-ADJ: Low dropout voltage regulator with adjustable output voltage and higher maximum output current.
3. TPS7A4700: Ultra-low dropout voltage regulator with adjustable output voltage and higher maximum output current.

These alternative models offer similar functionalities and can be considered as substitutes for the MAX865EUA+T depending on specific requirements and design considerations.

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