ISL9011AIRNJZ-T

Current - Output:	150mA, 300mA
Base Part Number:	ISL9011A
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):	0.2V @ 150mA, 0.4V @ 300mA
Voltage - Output (Max):	--
Voltage - Output (Min/Fixed):	3.3V, 2.8V
Voltage - Input (Max):	6.5V
Number of Regulators:	2
Output Type:	Fixed
Output Configuration:	Positive
Part Status:	Active
Packaging:	Tape & Reel (TR)

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Introduction

ISL9011AIRNJZ-T is a linear Voltage Regulator designed for applications requiring low noise and low power dissipation. The IC features a low noise, high efficiency output and provides excellent load transient response for load steps from as low as 0mA up to 95mA. It has an adjustable fixed output voltage from 0.8V to 3.3V. ISL9011AIRNJZ-T is a high performance linear voltage regulator specifically designed for automotive, industrial and medical applications.

Features

ISL9011AIRNJZ-T has several remarkable features includes the following: It has an adjustable fixed output voltage from 0.8V to 3.3VIt has a wide input voltage range of 1.5V to 5V and can operate on either battery or VBUS powerIt has low operating voltage of only 0.37V.It also has low quiescent current of only 1.2uA, making it suitable for portable/mobile applications where power consumption is critical.It is constructed in a 10-pin MSOP package.It offers fast transient response time of less than 1us typical.It features a programmable go/no-go comparator that can be used to compare the input and output voltages.It has built-in low-battery detection with an adjustable threshold from 0.8V to 3.3V.It also offers an MOSFET which permits fast on/off switching to control the load current.

Applications

ISL9011AIRNJZ-T is an ideal voltage regulator for many applications in the automotive, industrial and medical industries. It can be used in a wide range of systems, such as DC-DC converters, battery chargers, test and measurement equipment, PLCs, and other industrial automation systems. It also provides excellent transient response and stability in applications such as dc-dc converters, power amplifiers and power supply in automotive, industrial, and medical applications.

Working Principle

The ISL9011AIRNJZ-T operates by first providing a path for current to flow through the output capacitor, then the current is regulated based on the control loop feedback information. The output voltage is adjusted to achieve a stable output. The output voltage is regulated by controlling the MOSFET on/off-time. The MOSFET on-time is proportional to the desired output voltage and is set by the internal reference voltage. When the output voltage drops below a predetermined threshold, the MOSFET is turned off to reduce the output current. At this point, the MOSFET is turned on again to increase the output current until the output voltage is restored to the desired voltage. The voltage regulator features a current-sense input and a power-on reset circuit to monitor and maintain the output voltage. It also features an internal voltage divider to regulate the output voltage and an adjustable comparator to detect the output voltage drop that is used to detect over-voltage or under-voltage conditions.

Conclusion

ISL9011AIRNJZ-T is a high efficiency linear voltage regulator designed for automotive, industrial and medical applications. It offers excellent load transient response and fast transient response time. It also has several remarkable features such as adjustable fixed output voltage, wide input voltage range, low operating voltage, low quiescent current and 10-pin MSOP package. It can be used in a wide range of systems including DC-DC converters, battery chargers, test and measurement equipment and PLCs. Overall, ISL9011AIRNJZ-T is an excellent voltage regulator for applications requiring low noise and power dissipation. It offers stable performance and better efficiency in comparison to other linear voltage regulators making it a great choice for automotive, industrial and medical applications.

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