Series:	--
Packaging:	Tape & Reel (TR)
Part Status:	Active
Applications:	Controller, Intel VR11.1
Voltage - Input:	4.75 V ~ 5.25 V
Number of Outputs:	1
Voltage - Output:	0.5 V ~ 1.6 V
Operating Temperature:	-40°C ~ 85°C
Mounting Type:	Surface Mount
Package / Case:	48-VFQFN Exposed Pad
Supplier Device Package:	48-QFN (7x7)

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ISL6336DIRZ-T Voltage Regulator

Introduction

The ISL6336DIRZ-T is a low quiescent current, high efficiency, low noise, voltage regulator that is designed for delivering very low output voltages. It offers a wide input and output voltage range and delivers adjustable output for a variety of applications. It can be used in power supplies, current sources, and DC-DC converters. It is part of the ISL6336x family from Intersil.

Features

The main features of the ISL6336DIRZ-T are as follows:

• High efficiency up to 95%
• Low noise operation
• Very low quiescent current
• Wide input voltage range
• Wide output voltage range
• Adjustable output voltage
• Overvoltage and undervoltage protection
• Thermal shutdown protection

Applications

The ISL6336DIRZ-T voltage regulator can be used in a variety of applications, including:

• LED drivers
• Voltage monitoring and control
• DC-DC converters
• Cordless telephone power management
• Power supply and battery chargers
• Computer peripherals and accessories
• Power filters
• Portable audio systems
• Other consumer and industrial applications

Working Principle

The ISL6336DIRZ-T is a low quiescent current, switch-mode voltage regulator. It uses a high efficiency switching power converter design to regulate the output voltage. The device contains an internal reference (1.8 V) and a voltage regulator circuit that compares the output voltage with the reference voltage. When the output voltage deviates from the reference voltage, the device will enter regulation mode and switch on and off the internal MOSFET to adjust the output voltage. The MOSFET will stay on until the desired output voltage is reached, then switch off and enter standby mode. During the regulation mode, there is a minimum quiescent current draw which is typically in the microamps. The device also includes built-in protection features such as overvoltage, undervoltage and thermal shutdown.

Conclusion

The ISL6336DIRZ-T is a low quiescent current, high efficiency, low noise, adjustable voltage regulator designed for a variety of applications. It can operate from a wide input voltage range and offers adjustable output voltages. It also has a variety of built-in protection features for reliable operation and has a high efficiency rate up to 95%.

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