MAX1809ETI+ - English Editing Encyclopedia Entry

Product Overview

Category: Integrated Circuits (ICs)

Use: The MAX1809ETI+ is a voltage regulator IC that provides a regulated output voltage from an input voltage source. It is commonly used in various electronic devices to ensure stable power supply.

Characteristics: - High efficiency - Low dropout voltage - Adjustable output voltage - Overcurrent and thermal protection - Small package size

Package: The MAX1809ETI+ is available in a small 28-pin TQFN package, which allows for easy integration into compact electronic designs.

Essence: This IC is designed to regulate voltage levels efficiently and reliably, ensuring proper functioning of electronic devices.

Packaging/Quantity: The MAX1809ETI+ is typically sold in reels or tubes, with a quantity of 250 units per reel/tube.

Specifications

• Input Voltage Range: 2.5V to 5.5V
• Output Voltage Range: 1.25V to 5.5V
• Maximum Output Current: 600mA
• Dropout Voltage: 120mV at 100mA
• Operating Temperature Range: -40°C to +85°C

Pin Configuration

The MAX1809ETI+ has a total of 28 pins. Here is the detailed pin configuration:

1. VIN: Input voltage pin
2. GND: Ground pin
3. EN: Enable pin
4. FB: Feedback pin
5. VOUT: Output voltage pin
6. COMP: Compensation pin
7. SS/TR: Soft-start/Tracking pin
8. PGND: Power ground pin
9. BST: Boost pin
10. SW: Switching pin
11. LX: Inductor connection pin 12-28. NC: No connection pins

Functional Features

• High Efficiency: The MAX1809ETI+ utilizes advanced circuitry to achieve high efficiency, minimizing power losses.
• Adjustable Output Voltage: The output voltage can be easily adjusted within the specified range, providing flexibility for different applications.
• Overcurrent and Thermal Protection: The IC incorporates protection mechanisms to prevent damage from overcurrent or excessive heat.
• Small Package Size: The compact TQFN package allows for space-saving integration in electronic designs.

Advantages and Disadvantages

Advantages: - High efficiency operation - Adjustable output voltage - Overcurrent and thermal protection - Compact package size

Disadvantages: - Limited maximum output current (600mA) - Restricted input voltage range (2.5V to 5.5V)

Working Principles

The MAX1809ETI+ operates as a step-up (boost) voltage regulator. It takes an input voltage within the specified range and boosts it to a regulated output voltage. The feedback mechanism ensures that the output voltage remains stable even with variations in the input voltage or load conditions. The IC also includes protection features to safeguard against overcurrent and excessive temperature.

Detailed Application Field Plans

The MAX1809ETI+ finds application in various electronic devices, including: 1. Battery-powered portable devices 2. Wireless communication systems 3. Industrial control systems 4. Automotive electronics 5. Medical equipment

Detailed and Complete Alternative Models

1. LM2576-ADJ: Adjustable voltage regulator IC with higher maximum output current (3A).
2. LT1763-3.3: Fixed output voltage regulator IC with lower dropout voltage (50mV at 100mA).
3. TPS5430: Synchronous buck converter IC with wider input voltage range (4.5V to 28V).

These alternative models offer different specifications and features, providing options for specific application requirements.

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