AP1117K50L-U

Current - Output:	1A
Base Part Number:	AP1117
Supplier Device Package:	TO-263-2
Package / Case:	TO-263-3, D²Pak (2 Leads + Tab), TO-263AB
Mounting Type:	Surface Mount
Operating Temperature:	0°C ~ 125°C
Protection Features:	Over Current, Over Temperature
Control Features:	--
PSRR:	60dB (180Hz)
Current - Quiescent (Iq):	10mA
Series:	--
Voltage Dropout (Max):	1.4V @ 1A
Voltage - Output (Max):	--
Voltage - Output (Min/Fixed):	5V
Voltage - Input (Max):	18V
Number of Regulators:	1
Output Type:	Fixed
Output Configuration:	Positive
Part Status:	Obsolete
Packaging:	Tube

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The AP1117K50L-U is a low dropout (LDO) linear voltage regulator. This regulator utilizes a PMOS pass element and voltage reference to regulate output voltage. The AP1117K50L-U is designed to provide up to 1.5A of continuous output current while maintaining a low profile dropout voltage of 1.9V at a full load. Additionally, the device operates over an input voltage range of 4.5V to 16V, making it suitable for a variety of applications.The working principle of the AP1117K50L-U is simple and straightforward. The device has an internal voltage reference to ensure the stability of the output voltage. The output voltage is regulated by using a PMOS pass element which is connected between the input and output. The voltage across the PMOS pass is compared to the internal voltage reference and the voltage difference is then fed back to the error amplifier. This error amplifier is responsible for adjusting the current supplied to the PMOS pass element to keep the output voltage in regulation.The AP1117K50L-U is ideal for a wide range of applications due to its low dropout voltage, high output current, and wide input voltage range. These features make the AP1117K50L-U particularly suitable for applications including cell phones, PDAs, and other portable devices where a low dropout voltage and high output current are necessary. The device also offers excellent power supply noise rejection, making it ideal for powering high bandwidth devices such as RF base stations and cellular transceivers. Additionally, its wide input voltage range and regulation capability enable the AP1117K50L-U to be used as an adjustable power supply in laboratory and industrial applications.In conclusion, the AP1117K50L-U is a versatile linear voltage regulator designed to provide up to 1.5A of continuous output current while maintaining a low dropout voltage. Its wide input voltage range, power supply noise rejection, and regulation capability make it well-suited for a wide range of applications. Additionally, its low-profile dropout voltage and output current allow it to be used in portable devices with power requirements such as cell phones and PDAs. The device also offers excellent performance in industrial and laboratory settings due to its adjustable power supply capability. Overall, the AP1117K50L-U is an excellent choice for powering low-noise, power-hungry devices.

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