ISL78229ARZ-T

Product Overview

Category: Integrated Circuit (IC)

Use: Voltage Regulator

Characteristics: - High efficiency - Low dropout voltage - Wide input voltage range - Adjustable output voltage - Overcurrent and thermal protection

Package: SOIC-8

Essence: The ISL78229ARZ-T is a voltage regulator IC designed to provide a stable output voltage from a wide range of input voltages. It offers high efficiency and low dropout voltage, making it suitable for various applications.

Packaging/Quantity: The ISL78229ARZ-T is available in a standard SOIC-8 package. It is typically sold in reels containing 2500 units.

Specifications

• Input Voltage Range: 2.7V to 5.5V
• Output Voltage Range: 0.8V to VIN
• Maximum Output Current: 1A
• Dropout Voltage: 200mV at 1A
• Quiescent Current: 120µA
• Operating Temperature Range: -40°C to +85°C

Pin Configuration

The ISL78229ARZ-T has the following pin configuration:

```

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

• EN: Enable pin (Active High)
• FB: Feedback pin
• VIN: Input voltage pin
• VOUT: Output voltage pin
• SW: Switching pin

Functional Features

• High Efficiency: The ISL78229ARZ-T utilizes advanced circuitry to achieve high efficiency, minimizing power losses.
• Low Dropout Voltage: With a low dropout voltage of 200mV at 1A, the IC can maintain a stable output voltage even when the input voltage is close to the desired output voltage.
• Wide Input Voltage Range: The IC can operate with input voltages ranging from 2.7V to 5.5V, providing flexibility in various applications.
• Adjustable Output Voltage: The output voltage can be adjusted within the specified range using external resistors, allowing customization for specific requirements.
• Overcurrent and Thermal Protection: The IC incorporates overcurrent and thermal protection mechanisms to safeguard against excessive current or temperature conditions.

Advantages and Disadvantages

Advantages: - High efficiency - Wide input voltage range - Adjustable output voltage - Overcurrent and thermal protection

Disadvantages: - Limited maximum output current (1A)

Working Principles

The ISL78229ARZ-T operates as a step-down voltage regulator. It uses a switching mechanism to efficiently convert the input voltage to the desired output voltage. The feedback pin (FB) monitors the output voltage and adjusts the switching frequency to maintain a stable output. The enable pin (EN) controls the operation of the IC, allowing it to be turned on or off as required.

Detailed Application Field Plans

The ISL78229ARZ-T is suitable for a wide range of applications, including but not limited to: - Battery-powered devices - Portable electronics - Industrial equipment - Automotive systems - IoT devices

Detailed and Complete Alternative Models

Some alternative models that offer similar functionality to the ISL78229ARZ-T include: - LM1117-ADJ - LT1763-ADJ - TPS7A4700-ADJ - ADP3339-ADJ

These models provide adjustable output voltage, high efficiency, and other features comparable to the ISL78229ARZ-T. However, it is recommended to review the datasheets of each alternative model to ensure compatibility with specific application requirements.

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