MAX680ESA-T

Product Overview

• Category: Integrated Circuit (IC)
• Use: Voltage Regulator
• Characteristics: Low Dropout, Adjustable Output, Low Quiescent Current
• Package: 8-Pin SOIC (Small Outline Integrated Circuit)
• Essence: Provides regulated voltage output with low dropout and adjustable settings.
• Packaging/Quantity: Tape and Reel, 2500 units per reel

Specifications

• Input Voltage Range: 2.5V to 11V
• Output Voltage Range: 1.25V to 10V
• Dropout Voltage: 120mV at 100mA load current
• Quiescent Current: 60µA typical
• Line Regulation: 0.02%/V
• Load Regulation: 0.04%/mA
• Operating Temperature Range: -40°C to +85°C

Pin Configuration

The MAX680ESA-T has the following pin configuration:

| Pin Number | Pin Name | Description | |------------|----------|-------------| | 1 | GND | Ground | | 2 | VOUT | Output | | 3 | ADJ | Adjust | | 4 | NC | No Connection | | 5 | NC | No Connection | | 6 | VIN | Input | | 7 | NC | No Connection | | 8 | NC | No Connection |

Functional Features

• Low dropout voltage allows for efficient regulation even with small input-output differentials.
• Adjustable output voltage provides flexibility in various applications.
• Low quiescent current minimizes power consumption during standby or idle modes.
• Excellent line and load regulation ensures stable output voltage under varying conditions.

Advantages and Disadvantages

Advantages

• Wide input voltage range allows for compatibility with various power sources.
• Adjustable output voltage provides versatility in different circuit designs.
• Low dropout voltage enables efficient regulation even with low input-output differentials.
• Low quiescent current minimizes power consumption, making it suitable for battery-powered devices.

Disadvantages

• Limited maximum output current may not be suitable for high-power applications.
• Requires external components for stability and protection, increasing the overall circuit complexity.

Working Principles

The MAX680ESA-T is a voltage regulator IC that utilizes a PNP pass transistor to regulate the output voltage. It operates by comparing the reference voltage with the feedback voltage obtained from the voltage divider network connected to the ADJ pin. The internal error amplifier adjusts the base current of the pass transistor to maintain the desired output voltage. The dropout voltage is minimized by using a low saturation voltage PNP transistor.

Detailed Application Field Plans

The MAX680ESA-T is commonly used in various electronic devices and systems, including but not limited to:

1. Battery-powered portable devices: Provides regulated voltage for microcontrollers, sensors, and other low-power components.
2. Automotive electronics: Used in automotive modules, such as infotainment systems, dashboard displays, and lighting controls.
3. Industrial control systems: Suitable for powering analog and digital circuits in PLCs (Programmable Logic Controllers), motor drives, and instrumentation equipment.
4. Communication devices: Enables stable voltage supply for wireless routers, modems, and communication modules.
5. Consumer electronics: Used in audio/video equipment, gaming consoles, and home automation systems.

Detailed and Complete Alternative Models

1. LM1117-ADJ: Adjustable Voltage Regulator, 800mA Output Current, TO-220 Package.
2. LT1763-ADJ: Low Dropout Regulator, 500mA Output Current, SOT-23 Package.
3. TPS7A4700-ADJ: Ultra-Low Noise Regulator, 1A Output Current, D2PAK Package.
4. MCP1702-ADJ: Low Quiescent Current Regulator, 250mA Output Current, SOT-23 Package.
5. LDO50V: Adjustable Voltage Regulator, 200mA Output Current, SOT-89 Package.

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

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