MAX8640YEXT25+T

Product Overview

• Category: Integrated Circuit (IC)
• Use: Power Management
• Characteristics: High Efficiency, Low Quiescent Current
• Package: 25-Bump, 0.4mm Pitch, 1.63mm x 1.63mm WLP
• Essence: Voltage Regulator
• Packaging/Quantity: Tape and Reel, 3000 units per reel

Specifications

• Input Voltage Range: 2.7V to 5.5V
• Output Voltage Range: 0.8V to 3.6V
• Maximum Output Current: 600mA
• Quiescent Current: 9µA (typical)
• Efficiency: Up to 95%
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The MAX8640YEXT25+T features a 25-bump wafer-level package with the following pin configuration:

1. VOUT
2. GND
3. EN
4. FB
5. VIN
6. PGND
7. BST
8. SW
9. AGND
10. NC
11. NC
12. NC
13. NC
14. NC
15. NC
16. NC
17. NC
18. NC
19. NC
20. NC
21. NC
22. NC
23. NC
24. NC
25. NC

Functional Features

• High efficiency voltage regulation for portable devices
• Low quiescent current for extended battery life
• Wide input voltage range for versatile applications
• Adjustable output voltage for flexibility
• Overcurrent and thermal protection for enhanced safety

Advantages and Disadvantages

Advantages: - High efficiency leads to longer battery life - Small form factor enables compact designs - Wide input voltage range allows compatibility with various power sources

Disadvantages: - Limited maximum output current may not be suitable for high-power applications - Lack of detailed pin functionality in the datasheet can make initial setup challenging

Working Principles

The MAX8640YEXT25+T is a voltage regulator IC that converts an input voltage within the range of 2.7V to 5.5V into a regulated output voltage between 0.8V and 3.6V. It achieves this by utilizing a switching regulator topology, which efficiently steps down the input voltage to the desired output level.

The device incorporates a feedback mechanism that continuously monitors the output voltage and adjusts the duty cycle of the internal switch to maintain a stable output. This control loop ensures that the output voltage remains within the specified range, even when the input voltage or load conditions vary.

Additionally, the MAX8640YEXT25+T includes built-in protection features such as overcurrent and thermal shutdown. These safeguards prevent damage to the device and the connected circuitry in case of excessive current or temperature rise.

Detailed Application Field Plans

The MAX8640YEXT25+T finds applications in various portable electronic devices, including but not limited to:

1. Smartphones and tablets
2. Wearable devices
3. Portable medical equipment
4. IoT devices
5. Battery-powered industrial sensors

Its small form factor, high efficiency, and low quiescent current make it particularly suitable for battery-powered applications where space and power consumption are critical factors.

Detailed and Complete Alternative Models

1. MAX8641YEXT25+T: Similar specifications and package as MAX8640YEXT25+T, but with an adjustable output voltage range of 0.6V to 3.6V.
2. MAX8642YEXT25+T: Higher maximum output current of 800mA, suitable for applications requiring more power.
3. MAX8643YEXT25+T: Lower quiescent current of 6µA, ideal for ultra-low-power devices.

These alternative models offer similar functionality and package options, allowing designers to choose the most appropriate solution based on their specific requirements.

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