MP8846

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


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产品描述

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.

产品特性

  • 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

技术参数

  • fsw (max) (kHz)1600
  • 最小输入电压4.5
  • Vin (max) (V)8
  • Iout (max) (A)6
  • Isw Limit (typ) (A)9.5
  • Max Duty Cycle (%)0.95
  • Vfb (typ) (V)0.6
  • Iq (typ) (mA)0.5
  • 额定输出1
  • Vout (max) (V)5.2
  • Vout (min) (V)0.6
  • GradeCatalog
  • PackageQFN-15 (3x3)
  • Control ModeCurrent Mode
  • Common FeaturesExternal Soft Start, Light-Load Efficiency, Power Good, Synchronous Rectification
  • Special FeaturesI2C Interface, Programmable Frequency, Programmable Output Voltage, Selectable Power-Saving Mode

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.

US$ 25.00 + tax



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

This I2C GUI allows you to program the MP88xx . By using this I2C GUI, you can set the output voltage, switching frequency, slew rate, and operation mode. Please reference the parts respective user guides for installation and programing instructions.

System Requirements:

Windows 7 or later

.Net Framework 4 or later