MP8865

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6A, 21V High Efficiency Synchronous Step-Down Converter with I2C Interface


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产品描述

The MP8865 is a high-frequency, synchronous, rectified, step-down, switch-mode converter with a 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 MP8865 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. Also, 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 MP8865 requires a minimal number of readily available, standard, external components and is available in a 15-pin QFN15 (3x3mm) package.

产品特性

  • Wide 4.5V to 21V Operation Input Range
  • 45mO/18mO Low RDS(ON) Internal Power MOSFETs
  • 1% VOUT Accuracy
  • I2C Programmable Reference-Voltage 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
  • OCP Protection in Hiccup Mode
  • External Soft-Start
  • Available in a QFN3x3 Package

技术参数

  • fsw (max) (kHz)1600
  • 最小输入电压4.5
  • Vin (max) (V)21
  • 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

21V, 6A, High-Efficiency, Sync, Step-Down Converter with I2C Interface

The MP8865 is a high-frequency, synchronous, rectified, step-down, switch-mode converter with an I2C control interface. The MP8865 offers a very compact solution that achieves 6A of continuous output current with excellent load and line regulation over a wide input supply range. The MP8865 uses synchronous-mode operation for higher efficiency over the output load range.

Highly customizable, the MP8865 is capable of supporting a diverse array of mid-voltage applications. Users can program it via an MPS I2C GUI; however, changes made in I2C mode will not be retained once the EVB is powered down.

The EVKT8865 is a valuable evaluation tool well-suited for all types of experience levels, from beginner to expert, and can help users quickly determine if the MP8865 is right for their target application.

US$ 75.00 + tax



6A High Efficient Synchronous Step-Down Converter with I2C Interface

The EV8865-Q-00A is used for demonstrating the performance of MPS’s MP8865. MP8865 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 21V with excellent load and line regulation.

Current-Mode operation provides fast transient response and eases loop stabilization. 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 1.87V in 10mV steps. 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.

MP8865 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



USB 转 I2C/PMBus 通信接口设备,包含在产品评估套件中,也可单独购买

EVKT-USBI2C-02 包含在产品评估套件中,也可单独购买。该通信接口同时兼容USB 转 I2C 端口和 USB 转 PMBus 端口。它是设计用于 MPS I2C 和 PMBus 产品和虚拟平台及 I2C GUI 工具上。与 MPS 虚拟平台和 I2C GUI一起使用可以简单快速地评估 MPS 的数字产品性能。

EVKT-USBI2C-02 套件包括:

  • 1 个 USB 转 I2C 通信设备接口
  • 1 根 USB 线
  • 1 根 10 芯排线
  • 1 根 3 芯排线
  • 带有规格书和驱动文件的拇指驱动

US$ 25.00 + tax