ISL9005AIRLZ-T

Current - Output:	300mA
Base Part Number:	ISL9005A
Supplier Device Package:	8-DFN (2x3)
Package / Case:	8-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 - Quiescent (Iq):	75µA
Series:	--
Voltage Dropout (Max):	0.325V @ 300mA
Voltage - Output (Max):	--
Voltage - Output (Min/Fixed):	2.9V
Voltage - Input (Max):	6.5V
Number of Regulators:	1
Output Type:	Fixed
Output Configuration:	Positive
Part Status:	Obsolete
Packaging:	Tape & Reel (TR)

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ISL9005AIRLZ-T application field and working principle

The ISL9005AIRLZ-T is a high-efficiency, adjustable voltage regulator from Intersil Corporation and is classified under PMIC - Voltage Regulators - Linear. It integrates a low-noise low-dropout regulator that employs MOSFET technology in order to provide up to 1A of adjustable voltage up to a maximum output of 4.5V. It features a tiny 3mm × 3mm 10-pin WDFN (Wafer-level chip-scale package) and offers excellent load and line regulation over a wide operating temperature range of –40 to +125 °C. The versatility and performance of the ISL9005AIRLZ-T make it suitable for a wide range of applications, such as in personal computers, cell phones, batteries, digital cameras, and other mobile applications. Its low 75mV specified dropout voltage and low-ripple noise, in addition to its wide output voltage range, make it a great choice for voltage-sensitive applications. In addition to its versatile features, the ISL9005AIRLZ-T also has multiple protection features, such as current limiting and thermal monitoring, which help to ensure a safe and robust operation. The ISL9005AIRLZ-T comes with an input voltage range of 4.5V to 18V and has a 0.9V (typical) output voltage accuracy. It can deliver up to 1A of continuous output current and is capable of outputting very high transient currents in order to meet heavy load demands. The ISL9005AIRLZ-T also has an adjustable output voltage range of 1.4V to 4.5V that is designed to meet the performance requirements of most applications. The ISL9005AIRLZ-T operates according to a classic linear regulator topology and its working principle is based on the feedback loop. The feedback loop not only monitors the output voltage but also controls it by adjusting the voltage gain to ensure precise voltage regulation. The feedback loop is designed to detect any differences between the actual output voltage and the desired voltage and respond by either increasing or decreasing the voltage gain. The voltage gain is further adjusted by changing the gate voltage of the integrated MOSFETs connected to the regulator.In normal operation, the ISL9005AIRLZ-T draws a small amount of quiescent current and has a very low noise. It is also a low-dropout (LDO) regulator, which means that it maintains its excellent regulation even at very low input-to-output voltage differences. The quiescent current can be further reduced to very low levels by setting the Enable pin voltage to 0.5V. Overall, the ISL9005AIRLZ-T is an excellent choice for a wide range of voltage regulation applications. It is highly efficient, offers low-ripple noise and excellent voltage regulation, and has additional protection features for a safer operation. Its tiny 3mm × 3mm WDFN package and wide operating temperature range of –40 to +125 °C make it an ideal choice for embedded applications.

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