MAX797ESE

Product Overview

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

Specifications

• Input Voltage Range: 4.5V to 28V
• Output Voltage Range: 1.25V to 26V
• Output Current: Up to 500mA
• Quiescent Current: 50µA (typical)
• Operating Temperature Range: -40°C to +85°C

Pin Configuration

The MAX797ESE has a total of 16 pins. The pin configuration is as follows:

1. VCC
2. GND
3. FB
4. EN
5. COMP
6. SS
7. PGND
8. SW
9. SW
10. SW
11. SW
12. SW
13. SW
14. SW
15. SW
16. SW

Functional Features

• High efficiency: The MAX797ESE utilizes advanced power management techniques to achieve high efficiency, minimizing power losses.
• Low-power consumption: The quiescent current of only 50µA ensures minimal power consumption during standby or low-load conditions.
• Wide input voltage range: The IC can operate with an input voltage ranging from 4.5V to 28V, making it suitable for various applications.
• Adjustable output voltage: The output voltage can be adjusted within the range of 1.25V to 26V, providing flexibility for different requirements.
• Overcurrent protection: The MAX797ESE incorporates overcurrent protection to safeguard the circuit and connected devices from excessive current.

Advantages and Disadvantages

Advantages

• High efficiency results in reduced power consumption and heat dissipation.
• Wide input voltage range allows for compatibility with different power sources.
• Adjustable output voltage provides flexibility for various applications.
• Overcurrent protection ensures the safety of the circuit and connected devices.

Disadvantages

• Limited output current capacity (up to 500mA), which may not be sufficient for high-power applications.
• The small outline package may require additional thermal management measures for applications with high power dissipation.

Working Principles

The MAX797ESE is a voltage regulator that converts an input voltage into a regulated output voltage. It utilizes a switching regulator topology to achieve high efficiency. The IC continuously monitors the output voltage and adjusts the duty cycle of the internal switch to maintain a stable output voltage, even with varying input voltage or load conditions. The feedback pin (FB) is used to set the desired output voltage, while the enable pin (EN) controls the operation of the regulator.

Detailed Application Field Plans

The MAX797ESE is commonly used in various applications where efficient power management is required. Some typical application fields include:

1. Battery-powered devices: The low quiescent current and wide input voltage range make it suitable for battery-powered devices, such as portable electronics, IoT devices, and wearables.
2. Industrial automation: The voltage regulator can be used in industrial automation systems to provide stable power supply for sensors, actuators, and control circuits.
3. Automotive electronics: With its ability to operate within a wide input voltage range, the MAX797ESE can be employed in automotive electronics, including infotainment systems, lighting controls, and powertrain modules.

Detailed and Complete Alternative Models

1. LM317: A popular linear voltage regulator with adjustable output voltage and a maximum output current of 1.5A.
2. LT1763: A low dropout (LDO) voltage regulator with a maximum output current of 500mA and high PSRR (power supply rejection ratio).
3. TPS5430: A synchronous buck converter with an integrated FET, offering high efficiency and a wide input voltage range.

These alternative models provide similar functionality to the MAX797ESE and can be considered based on specific application requirements.

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