ISL80101IR25Z-T

Current - Output:	1A
Base Part Number:	ISL80101
Supplier Device Package:	10-DFN (3x3)
Package / Case:	10-VFDFN Exposed Pad
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 125°C
Protection Features:	Over Current, Over Temperature
Control Features:	Enable, Power Good, Soft Start
PSRR:	65dB ~ 58dB (120Hz ~ 1kHz)
Current - Supply (Max):	7mA
Current - Quiescent (Iq):	5mA
Series:	--
Voltage Dropout (Max):	0.212V @ 1A
Voltage - Output (Max):	--
Voltage - Output (Min/Fixed):	2.5V
Voltage - Input (Max):	6V
Number of Regulators:	1
Output Type:	Fixed
Output Configuration:	Positive
Part Status:	Obsolete
Packaging:	Tape & Reel (TR)

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<p>Linear voltage regulators are among the most widely used line of products in the Power Management IC (PMIC) industry. The ISL80101IR25Z-T is one such linear voltage regulator with applications in various fields. This article will discuss the various application fields and the working principle of the ISL80101IR25Z-T.</p><p>The ISL80101IR25Z-T is a low-dropout linear voltage regulator from the Intersil ISL80101 Series. It is a dual-channel device with Ultra-Low Dropout (ULDO) for both low current applications and high efficiency power delivery. It features a wide multi-range input voltage of 2.6V to 6.6V and adjustable output voltage from 0.8V to 5.0V to support high-performance microprocessors and applications requiring high efficiency at low voltage output. Moreover, it has an ultra-low quiescent current of only 10 μA in shutdown mode, further enabling its low-power consumption.</p><p>The ISL80101IR25Z-T is widely applicable in various fields. It is commonly used in system processor power sequencing and sequencing power-on/off events. It is also widely used in battery management systems and other portable or mobile applications. Moreover, its low output noise and low drop-out voltage further enable its use in server/desktop systems and other high-end applications requiring precise voltage delivery with ultra-low power consumption.</p><p>The working principle of the ISL80101IR25Z-T can be broken down into two parts, namely, the input side and the output side. On the input side, the device consists of an input voltage filter, an internal 4:1 switch, an ON/OFF comparator and an ON/OFF control logic. When the input voltage rises above the rising threshold, it is connected to the output stage. The ON/OFF comparator determines if the input voltage is within its acceptable range and the ON/OFF control logic then controls the operation of the device by either switching it on or off.</p><p>On the output side, the device consists of a voltage regulator and a voltage reference, both of which are used to ensure that the output voltage remains at its specified level. The voltage reference generates a reference voltage which is compared to the output voltage. The output voltage regulator then adjusts the output voltage based on the comparison. It also compensates for changes in the input voltage and provides the output voltage with improved transient and load regulation characteristics.</p><p>In summary, the ISL80101IR25Z-T is a low-dropout linear voltage regulator with a wide input voltage range and adjustable output voltage. It is suitable for use in various applications including system processors, battery management systems, server/desktop systems and other applications requiring precise voltage delivery with ultra-low power consumption. The device incorporates an internal 4:1 switch, an ON/OFF comparator and an ON/OFF control logic on the input side, and a voltage regulator and a voltage reference on the output side. Together, they ensure that the output voltage remains at its specified level.</p>

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