AP139-15WL-7

Current - Output:	300mA
Base Part Number:	AP139
Supplier Device Package:	SOT-25
Package / Case:	SC-74A, SOT-753
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 85°C
Protection Features:	Over Current, Over Temperature
Control Features:	Enable
PSRR:	75dB ~ 30dB (1KHz ~ 100KHz)
Current - Quiescent (Iq):	60µA
Series:	--
Voltage Dropout (Max):	--
Voltage - Output (Max):	--
Voltage - Output (Min/Fixed):	1.5V
Voltage - Input (Max):	5.5V
Number of Regulators:	1
Output Type:	Fixed
Output Configuration:	Positive
Part Status:	Obsolete
Packaging:	Tape & Reel (TR)

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AP139-15WL-7 belongs to the ROHM’s AP139 series of low-power 3.2V linear voltage regulators. This device is a low-noise, low-dropout linear regulator with an output current of 1.5 A. It has an operating voltage range of 3.2V to 18V and can provide output voltages from 1.2V to 15V. The device has an integrated foldback current limiter and excludes the need for an external current limiting resistor.
The AP139-15WL-7 linear voltage regulator operates on the principle that the output voltage is equal to the input voltage minus the voltage drop across a series pass element. Therefore, the input voltage must always be greater than the desired output voltage. As the load on the regulator increases, the drop across the pass element also increases. The voltage regulator continuously compensates to maintain the desired output voltage.
The AP139-15WL-7 linear voltage regulator is typically used in applications such as industrial power supplies, communication systems, and computer peripheral control circuits, or any other application where a stable output voltage is required. Its low-noise, low-dropout performance makes it well-suited for applications that require an efficient supply.
The AP139-15WL-7 linear voltage regulator operates by amplifying a reference voltage to the input of a series pass element and maintaining the output of the pass element constant. When the input voltage rises, the output voltage is also increased. When the difference between the input and output drops to less than the total drop of the pass element, the reference voltage is compensated by an output voltage feedback loop to maintain the desired output voltage.
The AP139-15WL-7 has several features that make it ideal for a variety of applications. It has an operating temperature range of -40°C to +85°C, a maximum output voltage of 15V, and a maximum output current of 1.5 A. Additionally, it has internal current limits with automatic foldback, a fixed 0.75V dropout voltage, and low noise operation.
The AP139-15WL-7 is a robust and reliable solution that provides a convenient, compact solution for providing a stable output voltage while keeping noise and power consumption to a minimum. Plus, the device is available in the small SOT223-4L package and is pin-compatible with the popular LDOs in this package size. The AP139-15WL-7 is a suitable voltage regulator solution for applications that require an efficient power supply and reliable, low-noise performance.

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