AP65251WU-7 Integrated Circuits (ICs)

Voltage - Input (Max):	16V
Supplier Device Package:	TSOT-26
Package / Case:	SOT-23-6 Thin, TSOT-23-6
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 85°C (TA)
Synchronous Rectifier:	Yes
Frequency - Switching:	500kHz
Current - Output:	2A
Voltage - Output (Max):	6V
Voltage - Output (Min/Fixed):	0.6V
Series:	--
Voltage - Input (Min):	4.5V
Number of Outputs:	1
Output Type:	Adjustable
Topology:	Buck
Output Configuration:	Positive
Function:	Step-Down
Part Status:	Active
Packaging:	Tape & Reel (TR)

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AP65251WU-7 Application Field and Working Principle

AP65251WU-7 belongs to the family of PMIC (Power Management IC) Voltage Regulators, and is a kind of DC/DC Switching Regulators. The traditional DC/DC switching power regulators are designed to manage the conversion of the input voltage and current to the desired output voltage and current for the proper operation of the load terminals. This can be critical for battery powered devices and other portable applications where the input voltage is uncertain and only limited battery life is available.The AP65251WU-7 is an advanced switching buck regulator, designed to deliver high efficiency and excellent performance in a variety of applications. It is capable of regulating 1V to 6V output voltage at up to 2.5A, and provides adjustable current limit, temperature protection and various other features. It also offers both single-ended and differential sense option, allowing it to be used for a variety of applications. The AP65251WU-7 provides a small size and simple design, with a high switching frequency and a low quiescent current, making it ideal for portable and mobile applications. The device also features a low power dissipation which helps in improving the overall system efficiency and extending the battery life. The AP65251WU-7 features a wide operating temperature range, from -40℃ to +125℃ making it suitable for use in a variety of demanding environments. In addition, it also has built-in soft start and adjustable current limit, allowing it to handle various kinds of loads. The device has several selectable output voltage options, ranging from 1V to 6V, making it suitable for a wide range of applications.The AP65251WU-7 device is available in both standard pin and LQFP packages, giving designers the flexibility to choose the right package for the task at hand. The device also uses digital control, allowing for easy programming and configuration. In terms of working principle, the AP65251WU-7 is a DC to DC Buck Regulator. It consists of an input voltage, a power switch and an output voltage. When the power switch is opened, the input voltage is reduced and the output voltage is increased, as the current is transferred from the input to the output via the inductor. At the same time, when the power switch is closed, the input voltage is increased and the output voltage is decreased, as the current is transferred from the output to the input via the diode. The output voltage is then regulated by the frequency of the power switch opening and closing, as well as by the values of the feedback voltage and current limit. In addition, the AP65251 WU-7 also provides a wide input voltage range, allowing it to operate with a variety of input sources. This allows it to be used in devices with different battery technologies, including Li-ion and NiMh, making it suitable for a variety of applications. Overall, the AP65251WU-7 is an efficient and reliable solution for all kinds of power conversion, offering high efficiency, low power dissipation and adjustable current limit. It is a great device, combining all the desired features in one compact and elegant package.

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