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Switching Regulator MP8853GQ: 2.85V to 18V, 4A, Synchronous Buck Converter with I2C Interface

Switching Regulator MP8853GQ: 2.85V to 18V, 4A, Synchronous Buck Converter with I2C Interface

Source:our siteTime:2025-08-19Views:

The MP8853GQ is a highly efficient synchronous step-down converter that adopts an I2C interface and supports dynamic adjustment of output voltage and current protection parameters. Its core features include:A wide operating input voltage (VIN) range o…

The MP8853GQ is a highly efficient synchronous step-down converter that adopts an I2C interface and supports dynamic adjustment of output voltage and current protection parameters. Its core features include:

A wide operating input voltage (VIN) range of 2.85V to 18V

4A Continuous output current (IOUT)

1% internal reference accuracy

The reference voltage (VREF) can be configured within the range of 0.6V to 1.108V through I²C, with a step size of 4mV and slope control

Default forced pulse width modulation (PWM) mode

The pulse frequency modulation (PFM)/PWM mode can be selected through I²C

The switching frequency (fSW) and current limit can be adjusted through I²C

16 optional I²C addresses

Internal Soft Start (SS

The leakage power supply is normal (PG) indicator

Output Overvoltage protection (OVP

Hiccup/Lock Mode Overcurrent Protection (OCP)

The output voltage (VOUT) can be adjusted between 0.6V and 5.5V through the FB pin.

It is packaged in QFN-14 (3mmx3mm)

The performance can be optimized by adopting MPS MPL-AL series inductors

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Introduction

The MP8853GQ is a high-frequency, synchronous, rectifier, step-down switching mode converter with an I2C control interface. It offers a fully integrated solution that can achieve a continuous output current (IOUT) of up to 4A and has excellent load and linear regulation over a wide input voltage (VIN) power supply range.


The output voltage (VOUT) of the MP8853GQ can be controlled in real time through the I2C serial interface. The reference voltage (VREF) can also be adjusted in steps of 4mV between 0.6V and 1.108V. In addition, the VOUT slope, switching frequency (fSW), current limit, hiccup/lock protection, enable (EN), and energy-saving mode (PSM) can also be selected through the I2C interface.


The MP8853GQ adopts constant on-time (COT) control to provide a fast transient response and indicates whether VOUT is within the nominal range through the open-drain normal (PG) pin. Its comprehensive protection functions include overvoltage protection (OVP), overcurrent protection (OCP), and over-temperature shutdown protection.


The MP8853GQ is available in a QFN-14 (3mmx3mm) package.


Basic parameters

Product type: Switching voltage regulator

Topological structure: Buck

Output voltage: 600 mV to 5.5 V

Output current: 4 A

Number of Output terminals: 1 Output

Input voltage - minimum value: 2.85V

Input voltage - maximum value: 18 V

Static current: 1.6 mA

Switching frequency: 400 kHz to 600 kHz

Minimum operating temperature: -40 ° C

Maximum operating temperature: + 125 ° C

Installation style: SMD/SMT

Packaging/Cabinet: QFN-14

Development Kit: EVL8853-Q-00A

Load regulation: 3%

Shutdown

Power supply voltage - minimum: 2.85V


Typical applications

The MP8853GQ chip is often used in industrial equipment, consumer electronics and communication infrastructure that require dynamic voltage regulation, such as PoE power supply systems and USB charging modules.


Get the exclusive supply quote for MP8853GQ immediately

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Email: sales@hkmjd.com

Official website: www.hkmjd.com


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