MP8846

6A, 8V High Efficiency Synchronous Step-Down Converter with I2C Interface

Datasheet

Description

The MP8846 is a high-frequency, synchronous, rectified, step-down, switch-mode converter with an I2C control interface. It offers a very compact solution to achieve a 6A continuous output current with excellent load and line regulation over a wide input-supply range. The MP8846 has synchronous-mode operation for higher efficiency over the output-load range. The reference voltage level can be controlled on-the-fly through a 3.4Mbps I2C serial interface. The voltage range can be adjusted from 0.6V to 1.87V in 10mV steps. The voltage slew rate, switching frequency, enable, and power-saving mode are selectable through the I2C interface. Current-mode operation provides fast transient response and eases loop stabilization. Full protection features include over-current protection (OCP), over-voltage protection (OVP), and thermal shut down (TSD). The MP8846 requires a minimal number of readily available, standard, external components and is available in a 15-pin QFN15 (3mmx3mm) package.

Features & Benefits

Wide 4.5V to 8V Operation Input Range
45mO/18mO Low RDS(ON) Internal Power MOSFETs
1% VOUT Accuracy
I2C Programmable Reference Range from 0.6V to 1.87V in 10mV Steps with Slew-Rate Control
I2C Selectable Switching Frequency. Default 600kHz Switching Frequency.
Programmable Output Voltage
Power-Saving Mode, OTP, and OCP via I2C
Power Good Indication
1-Bit I2C Address Set Pin
OCP in Hiccup Mode
External Soft-Start
Available in a QFN3mmx3mm Package

Active Part Numbers:

MP8846GQ-P MP8846GQ-Z

Meaning of P & Z

Evaluation Tools

EV8846-Q-00A Evaluation Kit 6A High Efficient Synchronous Step-Down Converter with I2C Interface

The EV8846-Q-00A is used for demonstrating the performance of MPS’s MP8846. MP8846 is a highly integrated and high frequency synchronous step-down switcher with I²C control interface. It is optimized to support up to 6A load current over an input supply range from 4.5V to 8V with excellent load and line regulation.

Current-Mode operation provides fast transient response and eases loop stabilization. The reference voltage level can be controlled, on-the fly through a 3.4Mbps I²C serial interface. The voltage range can be adjusted from 0.6V to 1.87V in 10mV steps. The voltage slew rate, switching frequency and power savings mode are also selectable through the I²C interface. Fully protection features includes over current protection, over voltage protection and over temperature protection.

MP8846 is available in QFN15 (3mmx3mm) package.

$25.00
+ tax

MP88xx I2C GUI

Configure multiple parameters of the MP88xx including output voltage and fsw.