MAX8559ETADK+ - English Editing Encyclopedia Entry

Product Overview

Category: Integrated Circuit (IC)

Use: The MAX8559ETADK+ is a highly efficient, step-up DC-DC converter designed for portable devices such as smartphones, tablets, and portable media players. It provides a regulated output voltage from a single-cell Li-ion battery or other power sources.

Characteristics: - High efficiency conversion - Low quiescent current - Wide input voltage range - Adjustable output voltage - Overcurrent and overtemperature protection

Package: The MAX8559ETADK+ comes in a 5mm x 5mm, 32-pin TQFN package.

Essence: This IC is essential for boosting the input voltage to a desired level for powering various components in portable electronic devices.

Packaging/Quantity: The MAX8559ETADK+ is typically sold in reels of 250 units.

Specifications

• Input Voltage Range: 2.7V to 5.5V
• Output Voltage Range: 3.3V to 5.5V
• Maximum Output Current: 1.2A
• Quiescent Current: 20µA (typical)
• Efficiency: Up to 95%
• Operating Temperature Range: -40°C to +85°C

Pin Configuration

The MAX8559ETADK+ has a total of 32 pins. Here is a detailed pin configuration:

1. VIN: Input voltage pin
2. GND: Ground pin
3. SW: Switching node connection
4. FB: Feedback voltage input
5. EN: Enable pin
6. SS/TR: Soft-start/tracking pin
7. VOUT: Output voltage pin
8. PGND: Power ground pin
9. LX: Inductor connection
10. BST: Boost capacitor connection
11. AGND: Analog ground pin
12. VREF: Reference voltage output
13. SS/TR: Soft-start/tracking pin
14. FB: Feedback voltage input
15. EN: Enable pin
16. VIN: Input voltage pin
17. GND: Ground pin
18. SW: Switching node connection
19. LX: Inductor connection
20. VOUT: Output voltage pin
21. PGND: Power ground pin
22. BST: Boost capacitor connection
23. AGND: Analog ground pin
24. VREF: Reference voltage output
25. SS/TR: Soft-start/tracking pin
26. FB: Feedback voltage input
27. EN: Enable pin
28. VIN: Input voltage pin
29. GND: Ground pin
30. SW: Switching node connection
31. LX: Inductor connection
32. VOUT: Output voltage pin

Functional Features

The MAX8559ETADK+ offers the following functional features:

1. High Efficiency Conversion: The IC provides efficient power conversion, minimizing energy loss and maximizing battery life.
2. Adjustable Output Voltage: The output voltage can be adjusted to meet the requirements of different devices.
3. Overcurrent and Overtemperature Protection: The IC incorporates protection mechanisms to prevent damage due to excessive current or temperature.

Advantages and Disadvantages

Advantages: - High efficiency conversion leads to longer battery life. - Wide input voltage range allows compatibility with various power sources. - Adjustable output voltage for flexibility in powering different components. - Overcurrent and overtemperature protection ensures device safety.

Disadvantages: - Limited maximum output current (1.2A) may not be sufficient for high-power applications. - The 32-pin package may require more board space compared to smaller packages.

Working Principles

The MAX8559ETADK+ operates as a step-up DC-DC converter. It boosts the input voltage to a higher level using an inductor and a switching transistor. The IC controls the switching of the transistor to regulate the output voltage. Feedback from the output is used to adjust the duty cycle of the switching transistor, maintaining a stable output voltage.

Detailed Application Field Plans

The MAX8559ETADK+ is commonly used in portable electronic devices that require a regulated power supply. Some specific application fields include:

1. Smartphones: Powering various components such as display panels, processors, and wireless modules.
2. Tablets: Providing a stable power source for the touchscreen, processor, and other internal components.
3. Portable Media Players: Ensuring consistent power delivery to audio/video playback circuits and user interface components.

Detailed and Complete Alternative Models

Here are some alternative models that offer similar functionality to the MAX8559ETADK+:

1. LT1308: Step-up DC-DC converter with adjustable output voltage and high efficiency.
2. TPS61220: Integrated boost converter with low quiescent current and wide input voltage