MP8859

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2.8 - 22V VIN, 3A IOUT, 4-Switch, Integrated Buck-Boost Converter with I2C Interface



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产品描述

The MP8859 is a synchronous, 4-switch, integrated buck-boost converter capable of regulating the output voltage from a 2.8V to 22V wide input voltage range with high efficiency. The integrated output voltage scaling and adjustable output current limit functions meet the USB power delivery (PD) requirement.

The MP8859 uses constant-on-time (COT) control in buck mode and constant-off-time control in boost mode, providing fast load transient response and smooth buck-boost mode transient. The MP8859 provides auto PFM/PWM or forced PWM switching modes, programmable output constant current (CC) current limit, which supports flexible design for different applications.

Full protection features include over-current protection (OCP), over-voltage protection (OVP), under-voltage protection (UVP), programmable soft start, and thermal shutdown.

The MP8859 is available in a 16-pin QFN (3mmx3mm) package.

产品特性

  • Wide 2.8V to 22V Operating Input Voltage Range
  • 1V (1) to 20.47V Output Voltage Range (5V Default) with 10mV Resolution through I2C
  • 3A Output Current or 4A Input Current
  • Four Low RDS(ON) Internal Buck Power MOSFETs
  • Adjustable Accurate CC Output Current Limit with Internal Sensing MOSFET via I2C
  • 500kHz Switching Frequency
  • Output Over-Voltage Protection (OVP) Hiccup
  • Output Short-Circuit Protection (SCP) with Hiccup
  • Over-Temperature Warning and Shutdown
  • I2C Interface with ALT Pin
  • Four Programmable I2C Addresses
  • One-Time Programmable (OTP) Non-Volatile Memory
  • I2C Programmable Line Drop Compensation, PFM/PWM Mode, Soft Start, OCP, etc.
  • EN Shutdown Discharge Programmable
  • Available in a QFN-16 (3mmx3mm) Package
  • UL Certified, UL2367:  E322138 UL60950-1/ UL60950-1-07: E500002-A1-CB-1

技术参数

  • PackageQFN-16 (3x3)
  • Isw (typ) (A)3
  • Vout (min) (V)1
  • Vout (max) (V)20.47
  • fsw (max) (kHz)500
  • Iq (typ) (mA)1
  • Vin (max) (V)22
  • 最小输入电压2.8

2.8 - 22V VIN, 3A IOUT, 4-Switch, Integrated Buck-Boost Converter with I2C Interface

The MP8859 is a synchronous, 4-switch, integrated buck-boost converter capable of regulating the output voltage from a 2.8V to 22V wide input voltage range with high efficiency. The integrated output voltage scaling and adjustable output current limit functions meet the USB power delivery (PD) requirement.

The MP8859 uses constant-on-time (COT) control in buck mode and constant-off-time control in boost mode, providing fast load transient response and smooth buck-boost mode transient. The MP8859 provides auto PFM/PWM or forced PWM switching modes, programmable output constant current (CC) current limit, which supports flexible design for different applications.

Full protection features include over-current protection (OCP), over-voltage protection (OVP), under-voltage protection (UVP), programmable soft start, and thermal shutdown.

The MP8859 is available in a 16-pin QFN (3mmx3mm) package.

¥ 513.75 + tax



2.8V-22V Vin, 3A Iout, 4-Switch Integrated Buck-Boost Converter with I2C Interface

The EV8859-Q-00B is an evaluation board for MP8859, which is a synchronous 4-switch integrated buck-boost converter. It can regulate  the output voltage from 2.8V to 22V wide input voltage range with high efficiency. The integrated output voltage scaling and adjustable output current limit functions fit to the USB Power Delivery (PD) requirement.

MP8859 uses constant-on-time control in buck mode and constant-off-time control in boost mode, providing fast load transient response as well as smooth buck-boost mode transient. MP8859 provides auto PFM/PWM or forced PWM switching modes, programmable output CC(Constant Current) current limit which supports flexible design for different applications.

The MP8859 also features with OCP/OVP/UVP, programmable soft-start and thermal shutdown protection.

The MP8859 is available in a 16-pin QFN(3mmx3mm) package.

¥ 171.25 + tax



The MP8859 is highly customizable. Users can configure the MP8859 via the downloadable I2C GUI.

This I2C GUI allows you to program the MP8859. By using this I2C GUI, you can set the output voltage, PG delay enable, output current limit, and more. Please reference the 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

¥ 171.25 + tax