MP28258DD-A-LF-Z

Voltage - Input (Max):	20V
Supplier Device Package:	12-QFN (2x3)
Package / Case:	12-TFQFN Exposed Pad
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 85°C (TA)
Synchronous Rectifier:	Yes
Frequency - Switching:	--
Current - Output:	3A
Voltage - Output (Max):	13V
Voltage - Output (Min/Fixed):	0.815V
Series:	--
Voltage - Input (Min):	4.2V
Number of Outputs:	1
Output Type:	Adjustable
Topology:	Buck
Output Configuration:	Positive
Function:	Step-Down
Part Status:	Active
Packaging:	Tape & Reel (TR)

Due to market price fluctuations, if you need to purchase or consult the price. You can contact us or emial to us:   sales@allicdata.com

MP28258DD-A-LF-Z Application Field and Working Principle

Introduction

MP28258DD-A-LF-Z (hereinafter referred to as the MP28258) is a monolithic integrated circuit with a dual high-frequency DC-DC Buck converter, designed and developed by Monolithic Power Systems, Inc. (MPS). It is an advanced step-down DC-DC switching regulator designed for high voltage, low noise and high efficiency applications. The MP28258 offers ultra-low noise control and high efficiency operation to reduce the total solution size and cost. It is targeted for V2V, 5V and 12V power supply applications.

PMIC - Voltage Regulators - DC DC Switching Regulators

The MP28258, as a DC-DC switching regulator, belongs to the category “Voltage Regulators - DC DC Switching Regulators” in PMIC (Power Management Integrated Circuit) field. It is suitable for switching from a high-voltage, low-current battery to a low-voltage, high-current point of load in a limited space, hence helping reduce the size of the overall power system.

Features

The main features of MP28258 are listed as follows: 1. High voltage input: The input voltage range of the MP28258 is 6V to 42V, allowing for extremely wide input voltage applications, such as 12V automotive applications and 24V telecom applications. 2. Dual, high frequency buck converters: MP28258 offers two synchronous buck converters with a single inductor, enabling dual outputs at 500mA/2A. 3. High efficiency operation: MP28258 integrates a low-on-resistance P-channel MOSFET, proprietary ultra-low-noise control circuit and proprietary average current-mode control scheme to ensure high efficiency operation. 4. Noise control: MP28258 incorporates an advanced, ultra-low-noise control circuit, enabling a noise-free system with no additional EMI filtering components.

Application Field

The MP28258 is designed to provide reliable power performance in high voltage and low current load applications. It is targeted for V2V, 5V and 12V power supply applications, such as automotive, telecom, battery pack, and wireless.

Working Principle

The working principle of MP28258 is based on a boost-buck topology. It relies on a single inductor to generate the dual outputs by using the principle of pulse-width modulation (PWM). The PWM block is used to drive the high-side switch to power on for a certain period of time, regulate the output voltage and adapt to the changing load. During the operation, when PWM pulses are applied to the gate of the MOSFET, the high-side switch is turned on and the inductor current rises. When the switch is turned off, the current stored in the inductor is discharged in the low-side switch (synchronous rectification) and the output voltage is regulated.

Conclusion

The MP28258DD-A-LF-Z is an advanced dual high-frequency DC-DC Buck converter designed for high voltage, low noise and high efficiency applications. It belongs to the PMIC Voltage Regulators - DC DC Switching Regulators category, and enables dual setpoint output with a single inductor. It offers ultra-low noise control and high efficiency operation which make it suitable for various V2V, 5V and 12V applications, such as automotive, telecom, battery pack, and wireless. Additionally, it operates based on boost-buck topology with pulse-width modulation (PWM) to control the high-side switch and the low-side switch for their respective operations.

The specific data is subject to PDF, and the above content is for reference

Part Number	Manufacturer	Price	Quantity	Description