ISL78302AARMMZ-T7A

Current - Output:	300mA, 300mA
Supplier Device Package:	10-DFN (3x3)
Package / Case:	10-VFDFN Exposed Pad
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 105°C
Protection Features:	Over Current, Over Temperature
Control Features:	Enable, Power On Reset
PSRR:	--
Current - Supply (Max):	55µA
Current - Quiescent (Iq):	36µA
Series:	Automotive, AEC-Q100
Voltage Dropout (Max):	0.23V @ 300mA (Typ), 0.23V @ 300mA (Typ)
Voltage - Output (Max):	--
Voltage - Output (Min/Fixed):	3V, 3V
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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<p>The ISL78302AARMMZ-T7A is a 3A, ultra-low voltage linear regulator. It is usually classified as a PMIC - Voltage Regulator - Linear. It features a low-dropout (LDO) voltage that works on ultra-low voltage of 0.9V maximum. Being one of the smallest 3A, low-cost linear regulators available on the market, the device increases system efficiency by delivering consistent, small-footprint, and lightweight design.</p><p>The ISL78302AARMMZ-T7A is designed to operate from a 3.1V to 5.5V input voltage range and provide regulated output voltages as low as 0.8V up to 5.4V. It features fast transient response, improved line regulation, and low quiescent current allowing it to meet the stringent requirements of ultra-low-power (ULP) applications.</p><p>The ISL78302AARMMZ-T7A offers a wide range of flexible characteristics and performance parameters that make it suitable for various applications. It offers high current delivery, fast transient response and improved line regulation that provide exceptional power supply performance. The fast turn-on time, low-dropout voltage and low resistance power switch allow it to support a wide range of applications, such as energy harvesting systems, remote sensor nodes, wearable electronics, and other ultra-low voltage or ULP systems.</p><p>The ISL78302AARMMZ-T7A provides good protection from thermal, over-current and reverse current. Its robust protection features protect against short-circuits, over-voltage, over-current, over-temperature and reverse current.</p><p> Working Principle </p><p>The ISL78302AARMMZ-T7A utilizes a voltage divider technique to deliver the desired output voltage. The main control elements are the internal resister-capacitor (RC) networks, the operational amplifier (OP-amp), and the comparator.</p><p>The RC network consists of a variety of resistors and capacitors connected in a specific way to form a feedback loop: when combined with the OP-amp and the comparator, they form an error-correction system that adjusts the current coming into the chip until a desired output voltage is achieved. <p>The OP-amp is used to measure the difference between the reference voltage (often generated internally) and the actual output voltage. The resulting error signal is then sent to the comparator, which is connected to a transistor-controlled switch. The switch is used to adjust the current coming into the chip and is controlled by the error signal. This in turn, adjusts the output voltage to the desired level.</p><p>The ISL78302AARMMZ-T7A\'s fast response time and low on-resistance make it suitable for applications that require high output current with fast load transient response.</p><p>Application Field</p><p>The ISL78302AARMMZ-T7A is typically used as a power supply in devices that require high current delivery with fast response time and low on-resistance. It is widely used in portable and wearable electronics, energy harvesting systems, remote sensor nodes, Internet of Things devices, ultra-low voltage or ULP systems, and other applications that require ultra-low voltage and high output current.</p><p>The device is widely used in portable applications, including tablets and smartphones, as well as in wearables, home entertainment systems and automotive applications. The device\'s small size and low-dropout voltage make it suitable for ultra-low voltage and high current operation.</p><p>In conclusion, the ISL78302AARMMZ-T7A combines excellent features, including high output current and low-dropout voltage, allowing it to meet the stringent requirements of ULP applications. The device\'s fast response time and low on-resistance make it suitable for a variety of applications, and its small size, low-cost and light weight make it an ideal choice for portable and wearable devices.</p>

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