ISL9011IRBBZ-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:	--
Current - Supply (Max):	60µA
Current - Quiescent (Iq):	40µA
Series:	--
Voltage Dropout (Max):	-, -
Voltage - Output (Max):	--
Voltage - Output (Min/Fixed):	1.5V, 1.5V
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Part Status:	Obsolete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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ISL9011IRBBZ-T Application Field and Working Principle

The ISL9011IRBBZ-T is a low quiescent current, low dropout adjustable current-mode linear voltage regulator. It is designed to provide a wide range of adjustable output voltage (1.2V to 5.5V) up to 2A. The device includes a low quiescent current control circuit and a current-mode voltage regulator. It is suitable for automotive and industrial applications, as well as applications requiring ultra-low dropout and low shutdown current.

Features

The ISL9011IRBBZ-T offers several features including: -Low quiescent current: 800 uA -Low dropout voltage: 150mV -Voltage output range: 1.2V-5.5V -Output current capacity up to 2A -Current mode control - Thermal shut-down protection - Over-voltage protection

Applications

The ISL9011IRBBZ-T is suitable for a variety of applications including: -Automotive systems such as lighting, engine control, and power management -Industrial applications such as factory automation and control systems -Sensors and measurement systems -Low voltage systems

Working Principle

The ISL9011IRBBZ-T is a low quiescent current, low dropout adjustable current-mode linear voltage regulator. It utilizes a low quiescent current control circuit to minimize the quiescent current of the device during operation. The circuit includes a power MOSFET to control the current flowing through an external load. The output voltage is adjusted via an external voltage divider. The device also includes an over-voltage protection circuit.The device utilizes a current-mode control circuit to regulate the output voltage. The output voltage is determined by the output current and the voltage divider. The output current is controlled by the current feedback circuit. The current feedback is a fixed current source connected to the power MOSFET, which is adjusted by the voltage divider. The output voltage is monitored by the internal comparator, and the output is adjusted accordingly.The device also includes several protection features such as over-voltage and thermal shut-down protection. The over-voltage protection will shut down the device when the voltage goes above a certain threshold. The device is also protected from thermal overload conditions via the thermal shut-down circuit. The device will shut down when the die temperature exceeds a certain value.In conclusion, the ISL9011IRBBZ-T is a low quiescent current, low dropout adjustable current-mode linear voltage regulator. Its features, applications, and working principle make it suitable for a variety of automotive, industrial, and low voltage applications.

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