MAX8742EAI+T

Product Overview

• Category: Integrated Circuit (IC)
• Use: Power Management
• Characteristics: High-efficiency, Step-down DC-DC Converter
• Package: 28-pin SSOP (Shrink Small Outline Package)
• Essence: Voltage Regulator
• Packaging/Quantity: Tape and Reel, 2500 units per reel

Specifications

• Input Voltage Range: 4.5V to 28V
• Output Voltage Range: 0.6V to 5.5V
• Output Current: Up to 3A
• Switching Frequency: 1MHz
• Efficiency: Up to 95%
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The MAX8742EAI+T has a total of 28 pins. Here is the detailed pin configuration:

1. VIN: Input voltage pin
2. GND: Ground pin
3. FB: Feedback pin for output voltage regulation
4. EN: Enable pin to control the device's operation
5. VCC: Supply voltage for internal circuitry
6. AGND: Analog ground pin
7. PGND: Power ground pin
8. LX: Switching node connection for the inductor
9. SW: Switching node connection for the inductor
10. BST: Boost capacitor connection
11. COMP: Compensation pin for stability control
12. SS/TR: Soft-start/tracking pin
13. OCSET: Overcurrent protection threshold setting pin
14. SYNC: Synchronization input pin
15. CLKOUT: Clock output pin
16. CLKIN: Clock input pin
17. VDD33: 3.3V output pin
18. VDD25: 2.5V output pin
19. VDD18: 1.8V output pin
20. VDD12: 1.2V output pin
21. VDD10: 1.0V output pin
22. VDD08: 0.8V output pin
23. VDD06: 0.6V output pin
24. VDD05: 0.5V output pin
25. VDD03: 0.3V output pin
26. VDD02: 0.2V output pin
27. VDD01: 0.1V output pin
28. VDD00: 0.0V output pin

Functional Features

• High-efficiency step-down DC-DC converter
• Wide input voltage range for versatile applications
• Adjustable output voltage with a wide range of options
• High output current capability for powering various loads
• Switching frequency can be synchronized with an external clock
• Overcurrent protection for enhanced safety
• Soft-start and tracking functionality for controlled power-up sequences

Advantages and Disadvantages

Advantages: - High efficiency results in reduced power consumption - Wide input voltage range allows for flexibility in power sources - Adjustable output voltage accommodates different load requirements - Synchronization capability enables system integration - Overcurrent protection enhances device and system safety

Disadvantages: - Limited output current compared to some other models - Higher cost compared to non-integrated solutions - Requires careful consideration of thermal management due to high efficiency

Working Principles

The MAX8742EAI+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 levels. The input voltage is first regulated and then stepped down to the desired output voltage using an inductor and a switching transistor. The feedback mechanism ensures that the output voltage remains stable within the specified range.

Detailed Application Field Plans

The MAX8742EAI+T is commonly used in various applications, including:

1. Portable electronic devices: Provides efficient power management for battery-powered devices such as smartphones, tablets, and portable media players.
2. Industrial equipment: Used in industrial automation systems, motor control units, and power supplies to regulate and distribute power efficiently.
3. Automotive electronics: Suitable for automotive applications like infotainment systems, lighting controls, and advanced driver-assistance systems (ADAS).
4. Telecommunications: Enables efficient power conversion in telecom infrastructure equipment, including base stations, routers, and switches.
5. Consumer electronics: Used in TVs, set-top boxes, gaming consoles, and other consumer electronic devices to optimize power delivery.

Detailed and Complete Alternative Models

1. MAX8732AETI+: Similar to MAX8742EAI+T with a different pin configuration and package (28-pin TQFN)
2. MAX17502GTL+: Step-down DC-DC converter with higher output current capability (up to