MP1584EN-LF

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The MP1584EN-LF voltage regulator is a highly efficient, low-dropout linear regulator that is capable of supplying up to 1.5 A current with a low output ripple. The regulator features an adjustable output voltage range of 2 V to 17 V, and an input voltage of 8 V to 35 V. The internal PWM generator provides 6 MHz switching frequency and up to 95% efficiency for lower loads. The MP1584EN-LF is available in DIP-8, SMD-8, and SO-8 packages. All pins are lead-fried compliant.

The MP1584EN-LF is well-suited for applications where a wide range of output voltages and current must be provided with low-dropout characteristics.

The regulator works in switching mode and it is necessary to use an inductor to perform the regulation function. This is done by creating a feedback loop. During the switch ON time, current is drawn from the input voltage source via the input capacitor and the energy is stored in the inductor. During the switch OFF time, the stored energy is released to the output and the output voltage is established. This output voltage is sensed by the regulating circuit and compared with the reference voltage. If the sensed voltage is different from the reference voltage, the regulating circuit will adjust the current flow to maintain the output voltage.

The MP1584EN-LF features a low-dropout current source and a linear regulator, offering good performance over operating temperature as well as good transient response. The high-side MOSFET switch low on-resistance minimizes total power dissipation and reduces switching losses. The thermal shutdown feature ensures the device does not overheat. The Over-Current Limit (OCL) feature protects the device from an output over-current condition. The over-voltage protection feature detects potential surges on the output voltage and shut down the regulator.

The MP1584EN-LF is widely used in battery-powered applications, robotics, altimeters, medical, telecom and automotive applications. The regulator is a perfect choice for applications with low-power dissipation, low-dropout, wide input range and adjustable output voltage.

The MP1584EN-LF is a practical solution for providing low-noise, regulated voltage - reliable and cost-effective, and consequently applicable in many applications that require varying or adjustable power input or output levels, or where there is a need for an isolated and controlled power source. Its wide input range and excellent transient response make it ideal for a wide variety of applications. With its low-dropout characteristics and integrated OCP, OVP, and thermal protection features, the regulator provides robust performance while meeting all safety requirements.

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