ADP1111ARZ

Product Overview

Category: Integrated Circuit (IC)

Use: Voltage Regulator

Characteristics: - Low dropout voltage - High output current capability - Adjustable output voltage - Thermal shutdown protection - Short-circuit current limiting

Package: TO-252 (DPAK)

Essence: ADP1111ARZ is a voltage regulator IC designed to provide a stable output voltage for various electronic devices.

Packaging/Quantity: The ADP1111ARZ is available in a standard TO-252 package, also known as DPAK. It is typically sold in reels or tubes containing multiple units.

Specifications

• Input Voltage Range: 2.5V to 18V
• Output Voltage Range: 1.25V to 16V
• Dropout Voltage: 0.4V at 1A
• Output Current: Up to 1.5A
• Quiescent Current: 100µA
• Operating Temperature Range: -40°C to +125°C

Pin Configuration

The ADP1111ARZ has the following pin configuration:

```

---

| | --| VIN GND |-- Pin 1: Ground --| VOUT NC |-- Pin 2: No Connection --| ADJ EN |-- Pin 3: Enable |___________| ```

Functional Features

• Low Dropout Voltage: The ADP1111ARZ exhibits a low dropout voltage, allowing it to regulate the output voltage even when the input voltage is close to the desired output voltage.
• High Output Current Capability: With a maximum output current of 1.5A, this voltage regulator can power a wide range of electronic devices.
• Adjustable Output Voltage: The output voltage can be adjusted using an external resistor divider network, providing flexibility in various applications.
• Thermal Shutdown Protection: The IC incorporates a thermal shutdown feature that protects it from overheating by disabling the output when the temperature exceeds a certain threshold.
• Short-Circuit Current Limiting: In case of a short circuit, the ADP1111ARZ limits the output current to prevent damage to the device.

Advantages and Disadvantages

Advantages: - Wide input voltage range - Adjustable output voltage - High output current capability - Thermal shutdown protection - Short-circuit current limiting

Disadvantages: - Limited availability of alternative models - Relatively high quiescent current compared to some other voltage regulators

Working Principles

The ADP1111ARZ is a linear voltage regulator that uses a pass transistor to regulate the output voltage. It operates by comparing the reference voltage with a fraction of the output voltage through a feedback network. The error amplifier adjusts the pass transistor to maintain a stable output voltage despite changes in the input voltage or load conditions.

Application Field Plans

The ADP1111ARZ finds applications in various electronic devices where a stable and adjustable output voltage is required. Some common application areas include: - Power supplies for microcontrollers and digital circuits - Battery-powered devices - Automotive electronics - Industrial control systems - Consumer electronics

Alternative Models

While the ADP1111ARZ is a popular choice for voltage regulation, there are alternative models available from different manufacturers. Some notable alternatives include: - LM1117 by Texas Instruments - LT1086 by Linear Technology - L78xx series by STMicroelectronics

These alternative models offer similar functionality and can be considered based on specific requirements and availability.

Word count: 510 words