MP8845C

MP8845C

NOT RECOMMENDED FOR NEW DESIGNS

5A, 6V High Efficiency Synchronous Step-Down Converter with I2C Interface

ALTERNATIVE PART

NRFND Datasheet

MP8845C continues to be in production for existing customers. Please consider this alternative for new designs:

MP8847

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

Features & Benefits

I2C-Programmable Output Range from 0.6V to 1.235V in 5mV Steps
2.7V to 6V Input Voltage Range
Up to 6A Load Current
Internal 35mO High-Side and15mO Low-Side Power MOSFETs
I2C-Compatible Interface up to 3.4Mbps
Factory Adjustable Switching Frequency from 0.85MHz to 2.2MHz
Power-Saving Mode Selectable via I2C
Internal 1ms SoftStart
Power Good Indicator
Current Overload and Thermal Shutdown Protection
Available in 2mmx3mm QFN-14 Package

… and many more!

Description

The MP8845C is a highly integrated and high frequency synchronous step-down switcher with I2C control interface. It is optimized to support up to 5A load current over an input supply range from 2.7V to 6V with excellent load and line regulation.

Constant frequency hysteretic control mode provides extremely fast transient response without loop compensation and easily achieves high efficiency under light load condition.
The output voltage level can be controlled, on-the fly through a 3.4Mbps I2C serial interface. Voltage range can be adjusted from 0.6V to 1.45V in 6.69mV steps. Voltage slew rate, switching frequency and power savings mode are also selectable through the I2C interface.
Fully protection features includes internal soft start, over current protection and over temperature protection.

The MP8845C requires a minimum number of readily available standard external components and is available in the compact WLCSP20-1.70mmx2.10mm package.