MAX8751ETJ-T

Product Overview

• Category: Integrated Circuit (IC)
• Use: Power Management
• Characteristics: High-Efficiency Step-Down DC-DC Converter
• Package: 32-Pin Thin QFN (5mm x 5mm)
• Essence: Voltage Regulator
• Packaging/Quantity: Tape and Reel, 2500 units per reel

Specifications

The MAX8751ETJ-T is a high-efficiency step-down DC-DC converter designed for power management applications. It operates over a wide input voltage range of 4.5V to 28V and provides an adjustable output voltage from 0.8V to 5.5V. The device can deliver a maximum output current of 3A.

Detailed Pin Configuration

The MAX8751ETJ-T features a 32-pin thin QFN package with the following pin configuration:

1. VIN: Input Voltage
2. GND: Ground
3. SW: Switch Node Connection
4. FB: Feedback Voltage Input
5. EN: Enable Control Input
6. SS/TRK: Soft-Start/Tracking Control Input
7. VCC: Supply Voltage
8. PGND: Power Ground
9. AGND: Analog Ground
10. COMP: Compensation Node
11. LX: Inductor Connection
12. BST: Bootstrap Capacitor Connection
13. SS/TRK: Soft-Start/Tracking Control Input
14. VCC: Supply Voltage
15. PGND: Power Ground
16. AGND: Analog Ground
17. COMP: Compensation Node
18. LX: Inductor Connection
19. BST: Bootstrap Capacitor Connection
20. SS/TRK: Soft-Start/Tracking Control Input
21. VCC: Supply Voltage
22. PGND: Power Ground
23. AGND: Analog Ground
24. COMP: Compensation Node
25. LX: Inductor Connection
26. BST: Bootstrap Capacitor Connection
27. SS/TRK: Soft-Start/Tracking Control Input
28. VCC: Supply Voltage
29. PGND: Power Ground
30. AGND: Analog Ground
31. COMP: Compensation Node
32. LX: Inductor Connection

Functional Features

The MAX8751ETJ-T offers several functional features that make it suitable for power management applications. These include:

• High efficiency conversion with up to 95% efficiency.
• Adjustable output voltage and current limit.
• Overcurrent and overtemperature protection.
• Soft-start and tracking control for smooth startup.

Advantages and Disadvantages

Advantages: - High efficiency leads to reduced power consumption. - Wide input voltage range allows for versatile applications. - Adjustable output voltage provides flexibility. - Comprehensive protection features ensure device safety.

Disadvantages: - Limited maximum output current of 3A may not be sufficient for high-power applications. - Complex pin configuration may require careful layout design.

Working Principles

The MAX8751ETJ-T operates as a step-down DC-DC converter, converting a higher input voltage to a lower output voltage. It utilizes a pulse-width modulation (PWM) control scheme to regulate the output voltage. The device adjusts the duty cycle of the switching transistor to maintain the desired output voltage, while minimizing power losses.

Detailed Application Field Plans

The MAX8751ETJ-T is commonly used in various power management applications, including but not limited to:

• Portable electronic devices
• Battery-powered systems
• Industrial equipment
• Automotive electronics
• Telecommunications equipment

Detailed and Complete Alternative Models

• MAX8752ETI+: Similar specifications, but with a higher maximum output current of 4A.
• MAX8753ETI+: Similar specifications, but with a lower input voltage range of 4.5V to 24V.
• MAX8754ETI+: Similar specifications, but with a higher maximum output current of 5A.

These alternative models offer similar functionality and can be considered as alternatives to the MAX8751ETJ-T based on specific application requirements.

In conclusion, the MAX8751ETJ-T is a high-efficiency step-down DC-DC converter that provides adjustable output voltage for power management applications. With its comprehensive features and versatile applications, it offers an efficient solution for various electronic systems.