AS2536UT

Product Overview

• Category: Integrated Circuit
• Use: Voltage Regulator
• Characteristics: High efficiency, low dropout voltage
• Package: TO-220
• Essence: Linear regulator
• Packaging/Quantity: Bulk packaging, 100 units per box

Specifications

• Input Voltage Range: 4.5V to 25V
• Output Voltage Range: 1.2V to 20V
• Maximum Output Current: 3A
• Dropout Voltage: 0.5V at 3A
• Line Regulation: ±0.02%
• Load Regulation: ±0.1%
• Operating Temperature Range: -40°C to +125°C

Detailed Pin Configuration

The AS2536UT has a standard TO-220 package with three pins:

1. Pin 1 (Input): Connects to the input voltage source.
2. Pin 2 (Ground): Connected to the ground reference.
3. Pin 3 (Output): Provides the regulated output voltage.

Functional Features

• High efficiency: The AS2536UT utilizes advanced circuitry to achieve high efficiency, minimizing power dissipation and maximizing battery life.
• Low dropout voltage: With a dropout voltage of only 0.5V at 3A, the AS2536UT can regulate the output voltage even when the input voltage is close to the desired output voltage.
• Overcurrent protection: The device incorporates overcurrent protection to safeguard against excessive current draw, preventing damage to the regulator and connected components.
• Thermal shutdown: In case of excessive temperature, the AS2536UT features a built-in thermal shutdown mechanism that disables the regulator until the temperature returns to a safe operating range.

Advantages and Disadvantages

Advantages: - High efficiency results in reduced power consumption. - Low dropout voltage allows for efficient regulation even with low input voltages. - Overcurrent protection ensures the safety of the regulator and connected devices. - Thermal shutdown prevents damage due to excessive temperature.

Disadvantages: - Limited output current capability compared to other voltage regulators in the market. - Requires external capacitors for stability, increasing the overall component count.

Working Principles

The AS2536UT is a linear voltage regulator that operates by comparing the output voltage to a reference voltage. It adjusts the resistance between the input and output pins to maintain a constant output voltage, regardless of changes in the input voltage or load conditions. The device uses a pass transistor to regulate the output voltage and dissipates excess power as heat.

Detailed Application Field Plans

The AS2536UT finds applications in various fields, including:

1. Power supplies for consumer electronics: The regulator can be used to provide stable voltage to microcontrollers, sensors, and other components in devices such as smartphones, tablets, and gaming consoles.
2. Automotive electronics: The AS2536UT is suitable for powering automotive infotainment systems, lighting modules, and other electronic components in vehicles.
3. Industrial automation: It can be employed in industrial control systems, motor drives, and PLCs to ensure reliable and regulated power supply.

Detailed and Complete Alternative Models

1. LM317: A popular adjustable linear voltage regulator with similar specifications and pin configuration.
2. LT1084: A high-current linear voltage regulator capable of delivering up to 5A of output current.
3. LM7805: A fixed 5V linear voltage regulator commonly used in low-power applications.

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