6A High Efficient Synchronous Step-Down Switcher with I2C Interface
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The MP8847 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 2.7V to 6V with excellent load and line regulation.
Constant frequency hysteretic 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 1.235V in 5mV steps.
Voltage slew rate, switching frequency and power savings mode are also selectable through the I2C interface.
The MP8847 requires a minimum number of readily available standard external components and is available in the compact QFN 2mmx3mm package.
- 2.7V to 6V Input Voltage Range
- Up to 6A Load Current
- Internal 35mΩ High-Side, 15mΩ Low-SidePowerMOSFETs
- I2C Compatible Interface up to 3.4Mbps
- I2C Programmable Output Range from 0.6V to 1.235V in 5mV Steps
- Factory Adjustable Switching Frequency from 0.85MHz to 2.2MHz
- PowerSaving Mode Selectable via I2C
- Internal 1ms Soft-Start
- PowerGood Indicator
- Current Overload and Thermal Shutdown Protection
- Available in QFN 2mmx3mm package
- IC Supported 1MP8847
Monolithic ICGET THIS IC
The MP8847 is a highly integrated,high-frequency, synchronous, step-down switcher with an I2C control interface.The MP8847 can support up to 6A of load current over an input supply range from 2.7V to 6V with excellent load and line regulation. Constant-frequency hystereticmode provides an extremely fast transient response without loop compensation to achieve high efficiencyeasilyunderlight-load condition. The output 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 1.235V in 5mV steps. The voltage slew rate, switching frequency,and power-saving mode are also selectable through the I2C interface. Full protection features include internal soft start, over-current protection (OCP), and over-temperature protection (OTP). The MP8847 requires a minimal number of readily available, standard, external components and is available in a compact QFN-14(2mmx3mm) package.