ISL9000IRBJZ-T

Introduction

The ISL9000IRBJZ-T is a three-terminal positive voltage regulator with a wide range of output voltages and high current capability. It is ideal for both primary-side and secondary-side switching regulator applications. It contains an internal temperature-compensated bandgap reference, an error amplifier, a temperature-sensing device, a temperature-compensated current source, and a current-path PNP transistor. The ISL9000IRBJZ-T employs an innovative monolithic design that provides excellent electrical performance in a wide range of applications. It operates from an input voltage of 3.0V to 30V and delivers up to 1.2A peak output current. The output voltage is adjustable from 0.9V to 15V with a commonly used external voltage divider. The output voltage is highly regulated and typically varies by less than 100mV over temperature, load, and line variations.

Features

• Input voltage range of 3.0V to 30V
• Wide output voltage range of 0.9V to 15V
• High output current capability up to 1.2A peak
• High output voltage accuracy
• Integrated thermal protection circuit
• High PSRR and low EMI noise
• Low dropout voltage
• Flexible system control

Application Field

The ISL9000IRBJZ-T is suitable for a wide range of applications, including:

• Automotive electronics
• Computer and peripheral equipment
• Telecommunications applications
• Consumer electronics
• Industrial and medical instrumentation
• Aerospace electronics

Working Principle

The ISL9000IRBJZ-T uses an innovative monolithic IC design to provide excellent electrical performance in a wide range of applications. The device consists of an internal temperature-compensated bandgap reference, an error amplifier, and a temperature-sensing device. Internal current limiting and thermal protection are also included. The error amplifier is designed to maintain a constant output voltage over a wide range of load and line variations. A PNP pass transistor is used to sense the output voltage and adjust it to the desired value.

The internal temperature compensation circuit senses the temperature of the device and adjusts the feedback voltage accordingly. This ensures that the output voltage remains at the same level, even in extreme temperatures. Additionally, the current-limiting feature prevents the device from exceeding the maximum current rating, thus protecting against damage to the device. The low dropout voltage allows the device to operate at a low voltage without affecting the output voltage accuracy.

Conclusion

The ISL9000IRBJZ-T is a high performance, three-terminal, positive voltage regulator with a wide range of output voltages and high current capability. It is suitable for a wide range of applications, including automotive, computer and telecommunications, consumer electronics, and medical instrumentation. It has a wide input voltage range of 3V to 30V, and a wide output voltage range of 0.9V to 15V with a high accuracy. It also has low dropout voltage and current-limiting protection for safety. The integrated thermal protection circuit ensures that the device is not damaged in extreme temperature conditions. The ISL9000IRBJZ-T is an ideal choice for both primary-side and secondary-side switching regulator applications.