AZ494AMTR-E1

Product Overview

Category: Integrated Circuits (ICs)

Use: Voltage Regulators - Switching Regulators

Characteristics: - High efficiency - Low power consumption - Wide input voltage range - Adjustable output voltage - Overcurrent protection - Thermal shutdown protection

Package: SOT-23-5

Essence: The AZ494AMTR-E1 is a switching regulator IC that provides efficient voltage regulation for various electronic devices.

Packaging/Quantity: The AZ494AMTR-E1 is typically packaged in reels of 3000 units.

Specifications

• Input Voltage Range: 4.5V to 40V
• Output Voltage Range: 1.25V to 37V
• Output Current: Up to 500mA
• Switching Frequency: 52kHz
• Operating Temperature Range: -40°C to +85°C

Pin Configuration

The AZ494AMTR-E1 has the following pin configuration:

```

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| | --| 1 |-- VIN --| 2 |-- GND --| 3 |-- FB --| 4 |-- SW --|____|-- VOUT ```

Functional Features

• High Efficiency: The AZ494AMTR-E1 utilizes advanced switching technology, resulting in high efficiency and reduced power dissipation.
• Adjustable Output Voltage: The output voltage can be easily adjusted using an external resistor divider network.
• Overcurrent Protection: The IC incorporates overcurrent protection to safeguard against excessive current flow.
• Thermal Shutdown Protection: In case of overheating, the thermal shutdown feature activates to prevent damage to the IC.

Advantages and Disadvantages

Advantages: - High efficiency leads to energy savings. - Wide input voltage range allows for versatile applications. - Adjustable output voltage provides flexibility. - Overcurrent and thermal shutdown protection enhance reliability.

Disadvantages: - Limited output current capacity (up to 500mA). - Relatively low switching frequency compared to some other models.

Working Principles

The AZ494AMTR-E1 is a switching regulator that operates by rapidly switching an internal power transistor on and off. This switching action converts the input voltage into a regulated output voltage. The feedback pin (FB) monitors the output voltage and adjusts the duty cycle of the internal switch to maintain the desired output voltage.

Detailed Application Field Plans

The AZ494AMTR-E1 is commonly used in various applications, including: - Power supplies for consumer electronics - Battery-powered devices - Industrial control systems - Automotive electronics - LED lighting

Alternative Models

Some alternative models that can be considered as alternatives to the AZ494AMTR-E1 include: - LM2576-ADJ - MC34063A - LT1370

These models offer similar functionality and can be suitable replacements depending on specific requirements.

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