AS1705-T

Product Overview

Category: Integrated Circuit (IC)

Use: The AS1705-T is a versatile integrated circuit primarily used for voltage regulation and power management in various electronic devices.

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

Package: The AS1705-T is available in a small surface-mount package, making it suitable for space-constrained applications.

Essence: The AS1705-T is designed to provide stable and regulated power supply to electronic circuits, ensuring optimal performance and reliability.

Packaging/Quantity: The AS1705-T is typically sold in reels or tubes, with each reel/tube containing a specific quantity of ICs. The exact packaging and quantity may vary depending on the supplier.

Specifications

• Input Voltage Range: 2.7V to 5.5V
• Output Voltage Range: 0.8V to VIN
• Maximum Output Current: 1.5A
• Dropout Voltage: 200mV (typical)
• Quiescent Current: 60μA (typical)
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The AS1705-T features a standard 6-pin configuration:

1. VIN: Input voltage pin
2. GND: Ground pin
3. EN: Enable pin (logic high enables the regulator)
4. FB: Feedback pin (used to set the output voltage)
5. VOUT: Output voltage pin
6. PG: Power Good pin (indicates the output voltage is within the specified range)

Functional Features

• Voltage Regulation: The AS1705-T provides precise voltage regulation, maintaining a stable output voltage even with varying input voltages.
• Overcurrent Protection: It incorporates overcurrent protection, safeguarding the circuit from excessive current flow and potential damage.
• Thermal Shutdown Protection: The IC includes a thermal shutdown feature that prevents overheating by disabling the regulator when the temperature exceeds a certain threshold.

Advantages and Disadvantages

Advantages: - Small form factor allows for easy integration into compact designs. - High efficiency results in minimal power loss and extended battery life. - Wide input voltage range accommodates various power sources. - Adjustable output voltage provides flexibility for different applications. - Overcurrent and thermal protection enhance system reliability.

Disadvantages: - Limited maximum output current may not be suitable for high-power applications. - Dropout voltage may cause a slight voltage drop across the regulator.

Working Principles

The AS1705-T operates based on a switching regulator topology. It utilizes an internal control loop to compare the feedback voltage (FB) with a reference voltage, adjusting the duty cycle of the internal switch to maintain the desired output voltage. This switching action allows for efficient voltage conversion while minimizing power dissipation.

Detailed Application Field Plans

The AS1705-T finds applications in a wide range of electronic devices, including but not limited to: - Portable consumer electronics - Battery-powered devices - IoT devices - Industrial automation systems - Automotive electronics

Detailed and Complete Alternative Models

1. AS1706-T: Similar to AS1705-T but with higher maximum output current (2A).
2. AS1704-T: Similar to AS1705-T but with lower maximum output current (1A).
3. AS1708-T: Similar to AS1705-T but with adjustable output voltage and higher quiescent current.

These alternative models offer variations in terms of output current, output voltage adjustability, and other specifications, allowing designers to choose the most suitable option for their specific requirements.

Note: The above information is based on the datasheet and specifications available at the time of writing. It is recommended to refer to the latest documentation provided by the manufacturer for the most accurate and up-to-date information.

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