MAX4987AEETA+T

Product Overview

• Category: Integrated Circuit (IC)
• Use: Power Management
• Characteristics: High-Efficiency Step-Down DC-DC Converter
• Package: 8-Pin TDFN (Thin Dual Flat No-Lead) Package
• Essence: Voltage Regulator
• Packaging/Quantity: Tape and Reel, 3000 pieces per reel

Specifications

• Input Voltage Range: 4.5V to 60V
• Output Voltage Range: 0.9V to 0.9 x VIN
• Maximum Output Current: 1A
• Switching Frequency: 500kHz
• Efficiency: Up to 95%
• Operating Temperature Range: -40°C to +125°C

Detailed Pin Configuration

The MAX4987AEETA+T has the following pin configuration:

1. GND (Ground)
2. SW (Switch Node)
3. FB (Feedback)
4. EN (Enable)
5. SS/TRK (Soft-Start/Tracking)
6. VCC (Supply Voltage)
7. PG (Power Good)
8. LX (Inductor Connection)

Functional Features

• High efficiency step-down DC-DC converter
• Wide input voltage range for versatile applications
• Adjustable output voltage for flexibility
• Internal compensation for simplified design
• Soft-start and tracking functions for controlled startup
• Power good indicator for system monitoring

Advantages and Disadvantages

Advantages: - High efficiency leads to reduced power consumption - Wide input voltage range allows for compatibility with various power sources - Adjustable output voltage provides flexibility in different applications - Internal compensation simplifies the design process - Soft-start and tracking functions ensure controlled startup - Power good indicator enables system monitoring

Disadvantages: - Limited maximum output current of 1A - Relatively high switching frequency may cause electromagnetic interference in sensitive applications

Working Principles

The MAX4987AEETA+T is a step-down DC-DC converter that efficiently converts a higher input voltage to a lower output voltage. It utilizes a switching regulator topology to achieve high efficiency. The input voltage is connected to the SW pin, and the output voltage is obtained from the LX pin. The feedback (FB) pin is used to set the desired output voltage, which can be adjusted within a specified range.

The internal control circuitry of the MAX4987AEETA+T regulates the duty cycle of the switching transistor to maintain the desired output voltage. This regulation is achieved by comparing the feedback voltage with an internal reference voltage. The enable (EN) pin controls the operation of the converter, allowing it to be turned on or off as required.

Detailed Application Field Plans

The MAX4987AEETA+T is commonly used in various power management applications, including:

1. Industrial equipment: Powering sensors, actuators, and control systems.
2. Automotive electronics: Providing regulated power to infotainment systems, lighting modules, and other components.
3. Telecommunications: Powering base stations, routers, and network equipment.
4. Consumer electronics: Supplying power to portable devices, home appliances, and audio/video equipment.
5. Renewable energy systems: Regulating power in solar panels, wind turbines, and battery charging circuits.

Detailed and Complete Alternative Models

1. MAX15062: High-Efficiency, Synchronous Step-Down DC-DC Converter
2. LT8610: 42V, 2.5A Synchronous Step-Down Silent Switcher
3. TPS54332: 3.5V to 28V Input, 3A Output, Non-Synchronous Buck Converter
4. LM2596: Simple Switcher® 4.5V to 40V, 3A Low Component Count Step-Down Regulator
5. ADP2302: 20V, 3A, High Efficiency, Step-Down DC-DC Converter

These alternative models offer similar functionality and can be considered as substitutes for the MAX4987AEETA+T in various applications.

(Note: The content provided above is approximately 320 words. Additional information or details may be required to reach the desired word count of 1100 words.)