MAX1921EUT18+TG104

Product Overview

• Category: Integrated Circuit (IC)
• Use: Power Management
• Characteristics: High Efficiency, Low Power Consumption
• Package: SOT23-6
• Essence: Voltage Regulator
• Packaging/Quantity: Tape & Reel, 3000 units per reel

Specifications

• Input Voltage Range: 2.7V to 5.5V
• Output Voltage: 1.8V
• Output Current: Up to 500mA
• Quiescent Current: 25µA (typical)
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The MAX1921EUT18+TG104 has a total of six pins arranged as follows:

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| | --| VOUT | --| GND | --| FB | --| EN | --| VIN | |___________| ```

1. VOUT: Output Voltage Pin
2. GND: Ground Pin
3. FB: Feedback Pin
4. EN: Enable Pin
5. VIN: Input Voltage Pin

Functional Features

• High efficiency voltage regulation
• Low power consumption
• Overcurrent and overtemperature protection
• Soft-start functionality for smooth power-up
• Adjustable output voltage through external resistors

Advantages and Disadvantages

Advantages

• High efficiency results in reduced power wastage
• Low quiescent current prolongs battery life
• Compact SOT23-6 package allows for space-saving designs
• Overcurrent and overtemperature protection ensures device safety
• Soft-start feature prevents voltage spikes during startup

Disadvantages

• Limited output current capacity (up to 500mA)
• Fixed output voltage (1.8V)

Working Principles

The MAX1921EUT18+TG104 is a voltage regulator IC that takes an input voltage within the range of 2.7V to 5.5V and provides a stable output voltage of 1.8V. It achieves high efficiency by utilizing a synchronous buck converter architecture. The feedback pin (FB) allows for adjustable output voltage through external resistors.

The enable pin (EN) controls the device's operation, allowing it to be turned on or off as needed. The IC also incorporates overcurrent and overtemperature protection mechanisms to safeguard against potential damage.

Detailed Application Field Plans

The MAX1921EUT18+TG104 is commonly used in various applications where efficient power management is required. Some typical application fields include:

1. Battery-powered devices: Portable electronics, wearable devices, and IoT sensors benefit from the low quiescent current and high efficiency of the MAX1921EUT18+TG104.
2. Industrial automation: Control systems, motor drives, and robotics can utilize the voltage regulation capabilities of this IC to ensure stable and reliable operation.
3. Automotive electronics: The wide input voltage range and compact package make the MAX1921EUT18+TG104 suitable for automotive applications such as infotainment systems and lighting control.

Detailed and Complete Alternative Models

1. MAX1921: Similar voltage regulator IC with adjustable output voltage and higher output current capacity (up to 1A).
2. MAX1922: Voltage regulator IC with fixed output voltage of 3.3V and higher output current capacity (up to 1.5A).
3. MAX1923: Voltage regulator IC with adjustable output voltage and integrated power-on reset functionality.

These alternative models offer different specifications and features, providing flexibility for various design requirements.

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