MP3021DQ-LF-P

The MP3021DQ-LF-P is an IC from Monolithic Power Systems (MPS) which is the renowned supplier of power management integrated circuits (PMICs). It belongs to the family of LED drivers that provide top-tier quality, product range and support for customers. The LED driver is used for powering LED display backlights, LED bulbs, LED lamps from low voltage sources.

It has a compact size, low voltage shutdown and over temperature protection features which make the MP3021DQ-LF-P an ideal choice for applications that require low power dissipation, small form factor and smart protection features. It supports an input voltage ranging from 2.5 V to 5.5 V and an input current of up to 1.1 A. The device is designed to drive a maximum current of 400mA to an open-load capacitor and can deliver up to 1W of output power to an LED display backlight.

The MP3021DQ-LF-P consists of two integrated switching blocks that are operated in the step-up Boost configuration. The first switching block includes an inductor, a MOSFET switch, a diode and a voltage feedback circuit that sense the load voltage in order to maintain the specified output current and voltage. The second block consists of an Error Amplifier, a Programmable Soft-Start circuit and a reference voltage for controlling the current in the first block.

The device also includes a logic block which is responsible for on/off control and a burst mode current limit circuitry to minimize the power losses in the system. It also has an adjustable output voltage of up to 25V and can operate in a switching frequency of between 200 kHz to 350 kHz depending on the load current and external components.

The MP3021DQ-LF-P supports various applications such as LED backlighting in smart phones, TV, monitors and laptops, LED bulbs, LED lamps, flashlight, and automotive lighting. It also features a thermal shut-down circuitry and over-voltage protection that shut-off the LED lights when the LED overheat or the voltage goes above the specified value.

The MP3021DQ-LF-P is an ideal choice for LED driving application due to its compact form factor, low voltage shutdown and over temperature protection. It is capable of driving up to a maximum current of 400mA to an open-load capacitor and can deliver up to 1W of output power to an LED display backlight. Its adjustable output voltage of up to 25V and switching frequency of between 200 kHz to 350 kHz makes it an ideal choice for LED driving applications.