AP78L08YG-13

Current - Output:	100mA
Base Part Number:	AP78L08
Supplier Device Package:	SOT-89-3
Package / Case:	TO-243AA
Mounting Type:	Surface Mount
Operating Temperature:	-20°C ~ 85°C
Protection Features:	Over Temperature, Short Circuit
Control Features:	--
PSRR:	46dB (120Hz)
Current - Quiescent (Iq):	5.5mA
Series:	--
Voltage Dropout (Max):	--
Voltage - Output (Max):	--
Voltage - Output (Min/Fixed):	8V
Voltage - Input (Max):	23V
Number of Regulators:	1
Output Type:	Fixed
Output Configuration:	Positive
Part Status:	Obsolete
Packaging:	Tape & Reel (TR)

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AP78L08YG-13 Application Field and Working PrincipleIntroductionAP78L08YG-13 is a Positive 8-Pin voltage regulator IC from Diodes Incorporated. Regulating voltage is a vital need for many electrical and electronic components and circuits. ICs like the AP78L08YG-13 take up this task and deliver reliable results. It is a low dropout linear voltage regulator, which means it works at a very low difference between input and output voltage to provide regulation of current.The main purpose of this IC is to regulate a voltage source to a preset level. This is done in order to allow components to work as designed, making this IC an important tool in power management and regulation. In addition, the AP78L08YG-13 is also a useful device in system reset, surge and over-current protection, and load balancing.Application FieldThe AP78L08YG-13 is primarily used for voltage regulation and for current monitoring. It is frequently used in portable devices such as cell phones, laptop computers, and digital cameras. It is also used in non-portable devices like routers, network switches, and set-top boxes. Moreover, AP78L08YG-13 is an ideal choice for developing low dropout voltage regulator modules for industrial applications.Working PrincipleThe AP78L08YG-13 operates on the principle of shunting. The Controlled Shunt Regulator (CSR) monitors the output voltage of the regulator and adjusts it accordingly. The AP78L08YG-13\'s input and output pins are connected to the control element which consists of a transistor pair connected in a Flip Flop mode configuration.The American Integrated circuit of this unit contains the two transistors and the components of the shunt regulator. If the output voltage rises above the reference voltage, the two transistors turn on and increase the current in the emitter-collector junction of the transistor pair. This increase in current causes the voltage to drop, thus regulating the output voltage to the predetermined level.The AP78L08YG-13 supports a wide range of input voltages from 4.5V to 16V and can output 2.5V to 5V with a reference voltage of 2.5V. It boasts an adjustable current limit of up to 200 mA. Furthermore, its maximum operating temperature is +125°C.ConclusionThe AP78L08YG-13 voltage regulator IC from Diodes Incorporated features a low dropout design, making it an essential tool for managing power and regulating voltage. It is primarily used in portable devices like cell phones, digital cameras, and laptop computers as well as in non-portable devices like routers, network switches, and set-top boxes. The device operates on the principle of shunting and uses a Controlled Shunt Regulator to monitor and adjust the output voltage of the regulator accordingly. Its range of inputs (4.5V to 16V) and outputs (2.5V to 5V) allow for a wide range of uses. With a reference voltage of 2.5V, an adjustable current limit of up to 200 mA, and a maximum operating temperature of +125°C, this voltage regulator is a robust and vital part of many electrical and electronic systems.

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