MAX8805XEWEEE+T

Product Overview

• Category: Integrated Circuit (IC)
• Use: Power Management
• Characteristics: High Efficiency, Low Quiescent Current, Small Package Size
• Package: WEEE (Wide Exposed Exposed Pad), 16-Pin TQFN (Thin Quad Flat No-Lead)
• Essence: Voltage Regulator
• Packaging/Quantity: Tape and Reel, 2500 units per reel

Specifications

• Input Voltage Range: 2.7V to 5.5V
• Output Voltage Range: 0.8V to 3.6V
• Maximum Output Current: 500mA
• Quiescent Current: 17µA (typical)
• Efficiency: Up to 95%
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The MAX8805XEWEEE+T has a 16-pin TQFN package with the following pin configuration:

1. EN (Enable)
2. FB (Feedback)
3. GND (Ground)
4. SW (Switch)
5. PG (Power Good)
6. VOUT (Output Voltage)
7. VOUT (Output Voltage)
8. VOUT (Output Voltage)
9. VOUT (Output Voltage)
10. VOUT (Output Voltage)
11. VOUT (Output Voltage)
12. VOUT (Output Voltage)
13. VOUT (Output Voltage)
14. VOUT (Output Voltage)
15. VIN (Input Voltage)
16. VIN (Input Voltage)

Functional Features

• Integrated voltage regulator for efficient power management.
• Wide input voltage range allows flexibility in power supply selection.
• Low quiescent current minimizes power consumption during standby or idle modes.
• Power Good (PG) signal indicates when the output voltage is within the specified range.
• Enable (EN) pin allows for easy on/off control of the regulator.

Advantages and Disadvantages

Advantages: - High efficiency results in less power dissipation and longer battery life. - Small package size saves board space in compact designs. - Wide input voltage range provides compatibility with various power sources.

Disadvantages: - Limited maximum output current may not be suitable for high-power applications. - Temperature range may restrict usage in extreme environments.

Working Principles

The MAX8805XEWEEE+T is a voltage regulator that converts an input voltage within the range of 2.7V to 5.5V to a regulated output voltage between 0.8V and 3.6V. It achieves high efficiency by utilizing a synchronous buck converter architecture. The regulator operates by controlling the duty cycle of the internal switch to maintain the desired output voltage. The enable pin allows the user to turn the regulator on or off as needed.

Detailed Application Field Plans

The MAX8805XEWEEE+T is commonly used in various portable electronic devices, such as smartphones, tablets, and wearable devices. Its small package size and low quiescent current make it suitable for power-sensitive applications. The wide input voltage range enables it to work with different power sources, including batteries and USB power supplies. The power good signal provides feedback to the system, ensuring stable and reliable operation.

Detailed and Complete Alternative Models

1. MAX8806XEWEEE+T: Similar to MAX8805XEWEEE+T but with higher maximum output current (800mA).
2. MAX8807XEWEEE+T: Similar to MAX8805XEWEEE+T but with adjustable output voltage.
3. MAX8808XEWEEE+T: Similar to MAX8805XEWEEE+T but with additional features like overcurrent protection and thermal shutdown.

These alternative models offer different specifications and features, allowing designers to choose the most suitable option for their specific application requirements.

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