ISL9440BIRZ-T

Voltage/Current - Output 3:	Controller
Base Part Number:	ISL9440
Supplier Device Package:	32-QFN (5x5)
Package / Case:	32-VFQFN Exposed Pad
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 85°C
Voltage - Supply:	4.5 V ~ 24 V
w/Sequencer:	No
w/Supervisor:	No
w/LED Driver:	No
Series:	--
Voltage/Current - Output 2:	Controller
Voltage/Current - Output 1:	Controller
Frequency - Switching:	300kHz
Number of Outputs:	4
Function:	Any Function
Topology:	Step-Down (Buck) Synchronous (3), Linear (LDO) (1)
Part Status:	Active
Packaging:	Tape & Reel (TR)

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.ISL9440BIRZ-T Application Field and Working Principle The ISL9440BIRZ-T device is an ultra-low power linear and switching power management integrated circuit (PMIC) for battery-powered applications, especially using a rechargeable battery. It provides numerous voltage conversion solutions with high efficiency and excellent power supply solution performance.The ISL9440BIRZ-T device combines many independent regulators with a simple interface to create a flexible power management solution that meets the needs of advanced battery-powered systems. The device supports up to 10 different power supplies including high voltage buck, low voltage buck and linear regulators, boost, linear and switching charge pumps, an I2C controlled LDO, and flexible IO supplies.At the heart of the ISL9440BIRZ-T is its voltage regulator, which is divided into two separate domains: linear and switching. The linear part of the regulator is used for low power functions such as standby and back-up power, and provides a low noise, high accuracy output. The switching part is used for higher power functions such as charging, boosting, and powering components, and provides a high efficiency but noisy output. The ISL9440BIRZ-T offers an adjustable output voltage range of 0.7V to 5.5V, and is able to support up to 10 outputs in a very small footprint. This allows the device to be used in many applications, such as mobile phones, portable handheld devices, portable media players, and other battery powered systems.The ISL9440BIRZ-T uses a switching supply and linear regulator to provide a regulated output voltage, while providing high efficiency and low ripple. The device features short-circuit protection, over-voltage protection, and thermal-shutdown protection, which helps keep the device safe and reliable. The device also features a wide input voltage range (1.8V to 5.5V) to accommodate a variety of battery sources.The ISL9440BIRZ-T includes additional features such as a programmable current limit, adjustable output voltage and over-temperature protection, which make the device ideal for a variety of battery-powered applications. The device also includes an I2C Interface, which provides intelligent control and monitoring of power supplies and allows for communication with external devices for system configuration.The ISL9440BIRZ-T provides a high level of integration, a wide input voltage range, excellent efficiency, short-circuit protection, over-voltage protection and thermal-shutdown protection, making it the perfect choice for today’s battery powered systems. With its low power consumption, small size, and high integration count, the ISL9440BIRZ-T is ideal for a variety of applications.

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