MP2159AGJ-P

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The MP2159AGJ-P voltage regulator is a MOSFET step-down DC/DC converter designed to provide an isolated 5V output, offering a low quiescent current mode. It is ideal for providing power for a wide range of applications, including telecommunications, computers, automotive, multimedia and industrial systems.

The MP2159AGJ-P offers high power conversion efficiency and a wide input voltage range of 4.5V to 24V, making it suitable for a wide range of applications. It also features a soft-start mechanism, which allows for a gradual increase of the output voltage to avoid in-rush current on startup, as well as a fast transient recovery time of up to 1ms. The device also features under-voltage protection and an adjustable output voltage range of 0.8V to 5V, which can be set by an external resistor divider.

In terms of applications, the MP2159AGJ-P is ideal for providing power for a variety of applications, including digital signal processing circuits, LCD backlight drivers, audio amplifiers, ASICS, digital signal processors, medical devices, and other low-power electronics. It is also suitable for charging portable devices, such as tablets, laptops, and smartphones.

The working principle of the MP2159AGJ-P is based on a constant-frequency, non-synchronous, PWM control architecture. It uses a current-mode control to handle transient responses, as well as an over-current protection circuit for providing extra system safety. The power switch is an N-channel MOSFET which is driven by an internal oscillator and current-mode driver. The switch is synchronized with the control signal to provide a stable and constant output voltage.

In summary, the MP2159AGJ-P is a high efficiency, MOSFET step-down DC/DC converter which is ideal for providing isolated 5V outputs for a wide range of applications. It features a wide input voltage range, soft-start mechanism, fast transient recovery time, adjustable output voltage range, under-voltage protection, and a current-mode control for superior stability and transient response. This device is an excellent choice for charging portable devices, as well as for providing power for a variety of electronic circuits and systems.

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