MAX797CSE-T

Product Overview

• Category: Integrated Circuit (IC)
• Use: Power Management
• Characteristics: High-efficiency, Low-power, Voltage Regulator
• Package: SOIC (Small Outline Integrated Circuit)
• Essence: Voltage Regulator with Current Limiting and Thermal Shutdown
• Packaging/Quantity: Tape & Reel, 2500 units per reel

Specifications

• Input Voltage Range: 4.5V to 28V
• Output Voltage Range: 1.25V to 26V
• Maximum Output Current: 500mA
• Dropout Voltage: 300mV at 500mA
• Quiescent Current: 120µA
• Operating Temperature Range: -40°C to +85°C

Pin Configuration

The MAX797CSE-T has a total of 16 pins. The pin configuration is as follows:

1. GND (Ground)
2. IN (Input Voltage)
3. EN (Enable)
4. FB (Feedback)
5. VOUT (Output Voltage)
6. GND (Ground)
7. GND (Ground)
8. GND (Ground)
9. GND (Ground)
10. GND (Ground)
11. GND (Ground)
12. GND (Ground)
13. GND (Ground)
14. GND (Ground)
15. GND (Ground)
16. GND (Ground)

Functional Features

• High Efficiency: The MAX797CSE-T utilizes advanced power management techniques to achieve high efficiency in voltage regulation.
• Low Power Consumption: With a quiescent current of only 120µA, the MAX797CSE-T minimizes power consumption when in standby or low-load conditions.
• Current Limiting: The voltage regulator includes built-in current limiting functionality to protect the circuit from excessive current.
• Thermal Shutdown: The MAX797CSE-T features a thermal shutdown mechanism that activates when the temperature exceeds a certain threshold, preventing damage to the device.

Advantages and Disadvantages

Advantages: - High efficiency leads to reduced power dissipation and longer battery life. - Low quiescent current minimizes standby power consumption. - Current limiting protects the circuit from overcurrent conditions. - Thermal shutdown prevents overheating and potential damage.

Disadvantages: - Limited maximum output current of 500mA may not be suitable for high-power applications. - Dropout voltage of 300mV at 500mA may affect performance in low input voltage scenarios.

Working Principles

The MAX797CSE-T is a voltage regulator that maintains a stable output voltage regardless of variations in the input voltage. It achieves this by utilizing a feedback mechanism that continuously adjusts the internal circuitry to maintain the desired output voltage. The device also incorporates current limiting and thermal shutdown features to protect the circuit and ensure safe operation.

Detailed Application Field Plans

The MAX797CSE-T is commonly used in various applications, including but not limited to:

1. Battery-Powered Devices: The low quiescent current and high efficiency make it suitable for portable devices powered by batteries, such as smartphones, tablets, and portable media players.
2. Industrial Control Systems: The voltage regulator can be utilized in industrial control systems to provide stable power supply for sensors, actuators, and other components.
3. Automotive Electronics: With its wide input voltage range and robust protection features, the MAX797CSE-T finds applications in automotive electronics, including infotainment systems, lighting controls, and power management modules.

Detailed and Complete Alternative Models

1. LM317: A popular linear voltage regulator with adjustable output voltage and current limiting capabilities.
2. LT1084: A high-current, low-dropout voltage regulator suitable for demanding applications.
3. LM2596: A step-down switching regulator that offers high efficiency and adjustable output voltage.

These alternative models provide similar functionality to the MAX797CSE-T and can be considered as alternatives based on specific application requirements.

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