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

• Input Voltage Range: 4.5V to 28V
• Output Voltage Range: 0.6V to 5.5V
• Maximum Output Current: 3A
• Efficiency: Up to 95%
• Switching Frequency: 2MHz
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The MAX8751ETJ+T has a total of 32 pins. The pin configuration is as follows:

1. VIN: Input Voltage
2. SW: Switch Node Connection
3. PGND: Power Ground
4. FB: Feedback Voltage Input
5. COMP: Compensation Node
6. SS/TR: Soft-Start/Tracking Control
7. EN: Enable Control
8. VCC: IC Supply Voltage
9. AGND: Analog Ground
10. LX: Inductor Connection
11. BOOT: Bootstrap Capacitor Connection
12. BST: Boost Capacitor Connection
13. PGOOD: Power Good Indicator
14. SYNC: External Synchronization Input
15. RT: Oscillator Timing Resistor
16. CT: Oscillator Timing Capacitor
17. SS/TR: Soft-Start/Tracking Control
18. EN: Enable Control
19. VCC: IC Supply Voltage
20. AGND: Analog Ground
21. LX: Inductor Connection
22. BOOT: Bootstrap Capacitor Connection
23. BST: Boost Capacitor Connection
24. PGOOD: Power Good Indicator
25. SYNC: External Synchronization Input
26. RT: Oscillator Timing Resistor
27. CT: Oscillator Timing Capacitor
28. SS/TR: Soft-Start/Tracking Control
29. EN: Enable Control
30. VCC: IC Supply Voltage
31. AGND: Analog Ground
32. LX: Inductor Connection

Functional Features

The MAX8751ETJ+T is a high-efficiency step-down DC-DC converter that provides a regulated output voltage from an input voltage source. Its key features include:

• Wide input voltage range, allowing operation with various power sources.
• High efficiency, reducing power dissipation and maximizing battery life.
• Adjustable output voltage, providing flexibility for different applications.
• Integrated protection features such as overcurrent and thermal shutdown.

Advantages and Disadvantages

Advantages: - High efficiency results in reduced power consumption. - Compact package size enables space-saving designs. - Wide input voltage range allows compatibility with different power sources. - Integrated protection features enhance system reliability.

Disadvantages: - Limited maximum output current may not be suitable for high-power applications. - Higher cost compared to non-integrated solutions.

Working Principles

The MAX8751ETJ+T operates based on the principle of pulse-width modulation (PWM). It uses a high-frequency switching transistor to control the energy transfer from the input to the output. The input voltage is stepped down to the desired output voltage by adjusting the duty cycle of the switching transistor. This regulated output voltage is then used to power various electronic components or systems.

Detailed Application Field Plans

The MAX8751ETJ+T is commonly used in the following application fields:

1. Portable Electronic Devices: Provides efficient power management for smartphones, tablets, and portable media players.
2. Industrial Equipment: Used in industrial automation systems, motor control, and instrumentation devices.
3. Automotive Electronics: Enables power supply for infotainment systems, lighting modules, and advanced driver-assistance systems (ADAS).
4. Communication Systems: Supports power management in routers, switches, and wireless access points.
5. Consumer Electronics: Used in televisions, gaming consoles, and audio/video equipment.

Detailed and Complete Alternative Models

1. MAX8752ETJ+T: Similar to MAX8751ETJ+T with higher maximum output current of 4A.
2. MAX8753ETJ+T: Step-down DC-DC converter with integrated synchronous rectification for improved efficiency.
3. MAX8754ETJ+T: Dual-output step-down DC-DC converter with independent voltage control.

These alternative models offer similar functionality and can be considered based on specific application requirements.

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