MP2128DG-LF-Z

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PMIC Voltage Regulator DC DC Switching Regulator

A switching regulator is a form of power converter, a DC-DC buck regulator, with the MP2128DG-LF-Z as its flagship model. It is a buck regulator that operates on pulse width modulation (PWM) and switching operating principles. It provides superior performance in electronic packages, offering high efficiency, low voltage output regulation with very low harmonics and low ripple. With its high switching frequency, it is capable of meeting space-constrained requirements. On its maximum output current, it is rated at 2A and on its maximum input voltage it is rated at 28V.

The power conversion efficiency of the MP2128DG-LF is a key factor that sets it apart from the other buck regulators. It can be characterized as highly efficient, with a maximum efficiency of 91.6% at 0.8A output current.

The MP2128DG-LF-Z has a broad range of application fields due to its multi-purpose design. Its usage includes providing power in ADSLxTend-LiteTM data transmission devices, Battery-Backup Utilization systems, DSL gateway connections, point-to-point and point-to-multipoint communications, Low-Power Consumption in Battery-Backup Systems, etc. Computer and peripheral manufacturers also utilize the MP2128DG-LF-Z in power-hungry motherboards, storage devices and Passive Optical Networks (PON). It can also be used in battery-powered portable wireless devices such as mobile phones, notebooks and media players. Automotive applications such as advanced driver assistance systems (ADAS) are also being powered by the MP2128DG-LF-Z.

The MP2128DG-LF-Z exhibits two operating modes, PWM and Pulse Frequency Modulation (PFM). In the PWM mode, the regulator is associated with a Reference Generator to develop a precise and adjustable voltage output. This regulator has output voltage programming, external synchronization and softstart/skip-start control.

In the PFM mode, the voltage output is controlled by manipulating the switching frequency of the regulator. This form of voltage control is advantageous when the system\'s load current is only slightly larger than its input current, as it gives the device higher efficiency. This results in greater power savings under light-load conditions. This mode also has a few added features, such as output voltage slope compensation, lead-lag compensation, frequency hopping and phase delay compensation.

The MP2128DG-LF-Z comes with a wide array of features that make it a great choice for various applications. It features adjustable switching frequency of up to 1 MHz, overcurrent and overvoltage protection, wide input voltage range of 4.5V to 28V and programmable output voltage of up to 1.5V. Additionally, it has dynamic response to gain compensation and transient immunity up to 330mV. It also has a soft-start or skip-start capability.

The MP2128DG-LF-Z has proven to be an effective switching regulator for low power electronic applications and offers a lot of advantages compared to linear regulators. It has high efficiency, low noise and low ripple, making it the ideal choice for harsh and high power applications. Its wide input voltage range and efficient power conversion make it perfect for high-end applications.

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