MPQ4558DQ-AEC1-LF-Z

Voltage - Input (Max):	55V
Supplier Device Package:	10-QFN (3x3)
Package / Case:	10-VFDFN Exposed Pad
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 125°C (TJ)
Synchronous Rectifier:	No
Frequency - Switching:	Up to 2MHz
Current - Output:	1A
Voltage - Output (Max):	52V
Voltage - Output (Min/Fixed):	0.8V
Series:	Automotive, AEC-Q100
Voltage - Input (Min):	3.8V
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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PMIC - Voltage Regulators - DC DC Switching Regulators

The MPQ4558DQ-AEC1-LF-Z is a controller IC that is typically used in a DC-to-DC buck converter circuit topology. This type of integrated circuit is classified as a Power Management Integrated Circuit (PMIC). It falls under the subcategory of Voltage Regulators, and more specifically, is a DC DC Switching Regulator.These types of ICs are usually found in power supplies for various applications, including industrial, automotive and consumer applications. Buck converters are typically employed in these applications because they are a more efficient form of voltage regulation than linear regulators, as they are able to regulate a larger range of output voltages with a single input voltage.A buck converter circuit is usually used for the purpose of providing any desired output voltage from a given input voltage. The basic topology uses an inductor, capacitor and switch. The switch is usually formed from an output MOSFET that is driven by the controlling IC. When the switch closes, the energy stored in the inductor is transferred to the capacitor, which charges in proportion to the voltage at the output. When the switch is opened, the inductor undergoes a counter-electromotive force, and discharges the energy stored in it to the capacitor. The capacitor then acts as a buffer to provide a constant output voltage to the load.The MPQ4558DQ-AEC1-LF-Z controller IC is able to operate at very high switching frequencies, allowing it to reach higher efficiency levels than most other DC-DC converters. It features high peak current capability and protection features including over-current, over-temperature, and under/over-voltage protections. It is also designed to operate in a low-power, standby mode.The MPQ4558DQ-AEC1-LF-Z IC is capable of controlling buck converter topologies with either a single or dual switch, and can be configured to provide either forced or synchronous mode operations. Its digital control provides excellent stability and high-accuracy trimming of output-delay, soft-start and over-current protection. It is also capable of dynamic voltage positioning (DVP) and spread-frequency modulation (SFM) for improved efficiency and transient response.Overall, the MPQ4558DQ-AEC1-LF-Z IC is an excellent choice for power supplies that require high efficiency and reliability. It is easy to integrate and program, and is versatile enough to be used in many applications. Its ability to be configured in various ways provides additional flexibility for designers.

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