MAX1747EUP+ - English Editing Encyclopedia Entry

Product Overview

• Category: Integrated Circuit (IC)
• Use: Power Management
• Characteristics: High-Efficiency Step-Down DC-DC Converter
• Package: 20-Pin TSSOP
• Essence: Regulates and converts input voltage to a lower output voltage efficiently
• Packaging/Quantity: Tape & Reel, 2500 units per reel

Specifications

• Input Voltage Range: 4.5V to 28V
• Output Voltage Range: 0.8V to 5.5V
• Maximum Output Current: 1A
• Switching Frequency: 500kHz
• Efficiency: Up to 95%
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The MAX1747EUP+ has a total of 20 pins. The pin configuration is as follows:

1. VIN: Input Voltage
2. GND: Ground
3. SW: Switch Node
4. FB: Feedback Voltage
5. EN: Enable Pin
6. SS/TRK: Soft-Start/Tracking
7. VCC: Supply Voltage
8. PGND: Power Ground
9. LX: Inductor Connection
10. COMP: Compensation Node
11. AGND: Analog Ground
12. BST: Bootstrap Capacitor Connection
13. SYNC: Synchronization Input
14. SS/TRK: Soft-Start/Tracking
15. VCC: Supply Voltage
16. PGND: Power Ground
17. LX: Inductor Connection
18. COMP: Compensation Node
19. AGND: Analog Ground
20. BST: Bootstrap Capacitor Connection

Functional Features

• High-efficiency step-down DC-DC converter
• Wide input voltage range for versatile applications
• Adjustable output voltage to meet specific requirements
• Integrated soft-start and tracking functions
• Synchronization input for noise reduction
• Overcurrent and thermal protection for enhanced safety

Advantages and Disadvantages

Advantages: - High efficiency results in reduced power consumption - Wide input voltage range allows for compatibility with various power sources - Adjustable output voltage provides flexibility in different applications - Integrated protection features ensure safe operation

Disadvantages: - Limited maximum output current of 1A may not be suitable for high-power applications - Requires external components for proper operation, increasing complexity

Working Principles

The MAX1747EUP+ is a step-down DC-DC converter that utilizes a switching regulator to efficiently convert the input voltage to a lower output voltage. It employs a pulse-width modulation (PWM) control scheme to regulate the output voltage. The integrated circuit adjusts the duty cycle of the switching transistor to maintain a stable output voltage despite variations in the input voltage or load conditions.

Detailed Application Field Plans

The MAX1747EUP+ is commonly used in various applications, including but not limited to:

1. Battery-powered devices
2. Portable electronic devices
3. Industrial automation systems
4. Automotive electronics
5. Telecommunications equipment

Detailed and Complete Alternative Models

1. MAX1748EUP+: Similar to MAX1747EUP+, but with higher maximum output current of 2A.
2. MAX1749EUP+: Step-down DC-DC converter with adjustable output voltage and higher efficiency.
3. MAX1750EUP+: Integrated circuit with synchronous rectification for improved efficiency.

These alternative models offer similar functionality to the MAX1747EUP+ but may have different specifications or additional features.

In conclusion, the MAX1747EUP+ is a high-efficiency step-down DC-DC converter used in various applications. Its adjustable output voltage, wide input voltage range, and integrated protection features make it a versatile choice for power management needs. However, its limited maximum output current and external component requirements should be considered when selecting the appropriate model for specific applications.