ISL9011IRNCZ-T

Current - Output:	150mA, 300mA
Base Part Number:	ISL9011
Supplier Device Package:	10-DFN (3x3)
Package / Case:	10-VFDFN Exposed Pad
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 85°C
Protection Features:	Over Current, Over Temperature, Soft Start, Under Voltage Lockout (UVLO)
Control Features:	Enable
PSRR:	-, 70dB ~ 40dB (1kHz ~ 100kHz)
Current - Supply (Max):	60µA
Current - Quiescent (Iq):	40µA
Series:	--
Voltage Dropout (Max):	0.2V @ 150mA, -
Voltage - Output (Max):	--
Voltage - Output (Min/Fixed):	3.3V, 1.8V
Voltage - Input (Max):	6.5V
Number of Regulators:	2
Output Type:	Fixed
Output Configuration:	Positive
Part Status:	Obsolete
Packaging:	Tape & Reel (TR)

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Introduction

The ISL9011IRNCZ-T is a low-dropout (LDO) linear voltage regulator from Intersil Corporation that provides high-accuracy stable control over output voltage for low power circuits. It is ideally suited for low noise, low-current electrical and electronic applications requiring an output voltage as low as 0.8V. This device has very few external components and it is offered in a wide operating temperature range.

Features and Benefits

The ISL9011IRNCZ-T is designed to provide a wide range of features and benefits that make it suitable for numerous applications. These features include:

• Low output voltage ripple
• High accuracy over line, load and temperature
• Very low quiescent current
• Very low dropout voltage
• Accurate enable/disable function
• Equivalent full-scale output current

Applications

The ISL9011IRNCZ-T is suitable for a wide variety of applications, including:

• Computer and networking systems
• Cell phones, PDAs, and portable media players
• Digital cameras, MP3 players, and gaming consoles
• CD, DVD and Blu-ray players
• High definition television and audio systems
• GPS, medical and industrial equipment

The ISL9011IRNCZ-T is particularly well-suited for use in wearable and IoT applications, as it is capable of providing accurate voltage control under demanding conditions. Additionally, its very low quiescent current makes it particularly attractive in low power applications.

Working Principle

The ISL9011IRNCZ-T operates by using an error amplifier and reference voltage. This voltage is combined with the output voltage to generate an error signal. The error signal is used to drive a pass element through an output current or a pass transistor, depending on whether or not the output is to be regulated as current or voltage. The error amplifier senses and compares the output voltage to the reference voltage and compensates for any differences. This is done by varying the amount of current that flows through the pass element, thereby adjusting the output voltage. When the output voltage reaches the set point, the error amplifier stops regulating and the output voltage stabilizes. If the output voltage falls below the set point, the error amplifier increases the current flow, driving the output voltage back up.

Conclusion

The ISL9011IRNCZ-T is a versatile low-dropout linear voltage regulator from Intersil Corporation suitable for a wide range of applications. It offers high accuracy, very low quiescent current and very low dropout voltage. Its enable/disable function and equivalent full scale current output make it ideal for demanding electrical and electronic applications. The ISL9011IRNCZ-T operates by using an error amplifier and reference voltage to sense and compare the output voltage to adjust the current flow as required. This allows it to accurately regulate the output voltage and maintain it at or near the set point.

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