MAX8640YELT12+T

Product Overview

• Category: Integrated Circuit (IC)
• Use: Power Management
• Characteristics: High Efficiency, Low Quiescent Current
• Package: 12-Lead Thin QFN (3mm x 3mm)
• Essence: Voltage Regulator
• Packaging/Quantity: Tape and Reel, 2500 units per reel

Specifications

• Input Voltage Range: 2.7V to 5.5V
• Output Voltage Range: 1.2V
• Maximum Output Current: 600mA
• Quiescent Current: 15µA
• Efficiency: Up to 95%
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The MAX8640YELT12+T has a 12-lead thin QFN package with the following pin configuration:

1. VIN: Input Voltage
2. GND: Ground
3. EN: Enable Pin
4. FB: Feedback Pin
5. SS/TR: Soft-Start/Tracking Pin
6. VOUT: Output Voltage
7. PGND: Power Ground
8. SW: Switching Node
9. SW: Switching Node
10. SW: Switching Node
11. SW: Switching Node
12. VCC: Supply Voltage

Functional Features

• High efficiency voltage regulator for portable devices
• Low quiescent current extends battery life
• Integrated power MOSFETs for compact design
• Soft-start and tracking functionality for smooth operation
• Overcurrent and overtemperature protection for reliability

Advantages and Disadvantages

Advantages: - High efficiency results in longer battery life - Compact size enables integration into small devices - Wide input voltage range allows compatibility with various power sources - Overcurrent and overtemperature protection ensures device safety

Disadvantages: - Limited output current may not be suitable for high-power applications - Single output voltage limits flexibility in certain designs

Working Principles

The MAX8640YELT12+T is a voltage regulator that converts an input voltage within the range of 2.7V to 5.5V to a fixed output voltage of 1.2V. It achieves high efficiency by utilizing integrated power MOSFETs and minimizing quiescent current. The soft-start and tracking functionality ensure smooth operation during power-up and transient conditions. The device also incorporates overcurrent and overtemperature protection mechanisms to safeguard against potential faults.

Detailed Application Field Plans

The MAX8640YELT12+T is commonly used in portable electronic devices, such as smartphones, tablets, and wearable devices. Its compact size and high efficiency make it ideal for battery-powered applications where maximizing battery life is crucial. The voltage regulator can provide a stable 1.2V output, which is commonly required for powering various digital and analog components in these devices.

Detailed and Complete Alternative Models

• MAX8641YELT12+T: Similar to MAX8640YELT12+T but with a higher output current of 800mA.
• MAX8642YELT12+T: Similar to MAX8640YELT12+T but with a lower output voltage of 1.0V.
• MAX8643YELT12+T: Similar to MAX8640YELT12+T but with a wider input voltage range of 2.5V to 5.5V.

These alternative models offer variations in output current, output voltage, and input voltage range, allowing designers to choose the most suitable option for their specific application requirements.

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