ISL9111AEHADJZ-T7A

Voltage - Output (Min/Fixed):	2.5V
Base Part Number:	ISL9111AEHADJ
Supplier Device Package:	SOT-23-6
Package / Case:	SOT-23-6
Mounting Type:	Surface Mount
Operating Temperature:	-20°C ~ 85°C (TA)
Synchronous Rectifier:	Yes
Frequency - Switching:	1.2MHz
Current - Output:	800mA (Switch)
Voltage - Output (Max):	5.25V
Series:	--
Voltage - Input (Max):	2.3V
Voltage - Input (Min):	0.8V
Number of Outputs:	1
Output Type:	Adjustable
Topology:	Boost
Output Configuration:	Positive
Function:	Step-Up
Part Status:	Active
Packaging:	Tape & Reel (TR)

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PMIC and Voltage RegulatorsPMIC (Power Management Integrated Circuit) is an integrated circuit that is designed to control power flow, power delivery and power consumption in an area of electronics. Voltage Regulators are a type of PMIC that are used to regulate the voltage level of an electrical signal by limiting or increasing the amount of current that can pass through the circuit. Voltage regulators can be either linear or switching.DC DC Switching RegulatorsDC DC switching regulators are used to maintain a specified and consistent output voltage, regardless of the input voltage or load current. They provide a much higher efficiency than linear regulators, which means that less energy is wasted and more power is transferred to the output. DC DC switching regulators utilize an inductor to store energy and a power MOSFET switch, which is driven by a feedback control circuit, to control the output voltage.ISL9111AEHADJZ-T7AISL9111AEHADJZ-T7A is a DC DC switching regulator designed for consumer and industrial applications. It is designed to provide a regulated output voltage anywhere from 0.83V to 3.7V, and an output current of up to 0.59A. The device utilizes a high-frequency synchronous buck converter to provide high efficiency and better control features. The switching frequency can also be adjusted to optimize efficiency, reduce output voltage ripple and minimize EMI. The device is offered in a small, easy-to-use 5 pin package, making it ideal for space-constrained applications.ISL9111AEHADJZ-T7A Application FieldThe ISL9111AEHADJZ-T7A can be used in a wide variety of applications, such as consumer electronic products, battery-powered electronic devices, LED lighting and automotive applications. It is also suitable for 5V-12V industrial LED modules, LED drivers, power over Ethernet (PoE) systems, ripple current/precision voltage applications and mixed-signal audio/video systems.ISL9111AEHADJZ-T7A Working PrincipleThe ISL9111AEHADJZ-T7A utilizes a synchronous buck converter to convert an input voltage (VIN) to the required output voltage (VOUT). It consists of an internal high-side MOSFET switch, an inductor and a low-side MOSFET switch. It also features an internal high efficiency switching regulator control circuit, which provides the desired voltage regulation.The high side MOSFET is activated during the first segment of the switching cycle by the regulator control circuit, causing the inductor to store energy. During the second segment of the cycle, the low-side MOSFET is activated, causing the stored energy of the inductor to be transformed into the output voltage. The regulator control circuit then monitors the output voltage, adjusts the switching timing and switches between the two MOSFETs accordingly to maintain the required voltage.ConclusionThe ISL9111AEHADJZ-T7A is a high performance DC DC switching regulator that can be used in a wide variety of applications. It is designed to be highly efficient and provide stable output voltage regardless of input voltage or load conditions. The device utilizes a high-frequency synchronous buck converter and a feedback control circuit to enable the desired voltage regulation. It is offered in a compact, 5-pin package size and is suitable for space constraint applications.

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