MAX765ESA

Product Overview

• Category: Integrated Circuit (IC)
• Use: Voltage Regulator
• Characteristics: Low-dropout, adjustable output voltage
• Package: 8-pin SOIC (Small Outline Integrated Circuit)
• Essence: Regulates input voltage to a desired output voltage level
• Packaging/Quantity: Tape and reel, 2500 units per reel

Specifications

• Input Voltage Range: 2.5V to 16V
• Output Voltage Range: 1.25V to 15V
• Dropout Voltage: 300mV at 100mA load current
• Output Current: Up to 500mA
• Line Regulation: 0.02% typical
• Load Regulation: 0.04% typical
• Quiescent Current: 1.5mA typical
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

1. GND: Ground pin
2. VOUT: Output voltage pin
3. ADJ: Adjust pin for setting the output voltage
4. BYP: Bypass capacitor pin
5. VIN: Input voltage pin
6. NC: No connection
7. NC: No connection
8. SHDN: Shutdown control pin

Functional Features

• Low dropout voltage ensures efficient regulation even with low input-output voltage differentials.
• Adjustable output voltage allows flexibility in selecting the desired voltage level.
• Excellent line and load regulation characteristics ensure stable output voltage under varying conditions.
• Thermal shutdown protection prevents damage due to excessive temperature.
• Short-circuit current limit protects the device from excessive current flow.

Advantages

• Wide input voltage range enables compatibility with various power sources.
• Adjustable output voltage provides versatility for different applications.
• Low dropout voltage minimizes power dissipation and improves efficiency.
• Compact 8-pin SOIC package saves board space.
• Excellent line and load regulation ensures stable output voltage.

Disadvantages

• Limited output current capability compared to higher-rated regulators.
• Requires external bypass capacitor for optimal performance.
• Not suitable for high-power applications due to limited current handling capacity.

Working Principles

The MAX765ESA 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 obtained from the output. The error amplifier adjusts the pass transistor to maintain the desired output voltage level. The device incorporates various protection features such as thermal shutdown and short-circuit current limit to ensure safe operation.

Detailed Application Field Plans

The MAX765ESA finds applications in various electronic systems where a regulated voltage supply is required. Some common application fields include:

1. Battery-powered devices: Provides stable voltage supply for portable electronics, such as smartphones, tablets, and portable audio players.
2. Automotive electronics: Regulates voltage for automotive systems, including infotainment systems, lighting controls, and sensors.
3. Industrial control systems: Ensures stable voltage for PLCs (Programmable Logic Controllers), motor drives, and instrumentation equipment.
4. Communication systems: Used in routers, switches, and wireless access points to maintain a constant voltage supply.
5. Consumer electronics: Suitable for powering digital cameras, gaming consoles, and home entertainment systems.

Detailed and Complete Alternative Models

1. LM1117-ADJ: Adjustable voltage regulator with similar specifications and pin configuration.
2. LT1086: High-current adjustable voltage regulator with enhanced load regulation.
3. TPS7A4700: Low-noise, low-dropout voltage regulator suitable for sensitive analog circuits.
4. ADP3339: Ultra-low dropout voltage regulator with high output current capability.
5. LP2985: Low quiescent current voltage regulator for power-sensitive applications.

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