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2.5V to 16V Input, 18W Output High-Efficiency Buck-Boost Converter

Smallest Solution Size to Achieve 18W USB OTG Power

产品详情

Parametric specs for Step-Down/Up (Buck Boost) Regulator
VIN (V) (min) 2.5
VIN (V) (max) 16
VOUT1 (V) (min) 3
VOUT1 (V) (max) 15
Switch Type Internal
Preset VOUT (V) 5
Output Adjust. Method I2C
Preset
Resistor
Synchronous Switching Yes
# DC-DC Outputs 1
Alternate Topology Buck-Boost
Design Tools EE-Sim
Package/Pins WLP/35
Oper. Temp. (°C) -40 to +125
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设计与制作发展历程

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描述

The MAX77831 evaluation kit (EV kit) provides a proven design to evaluate the MAX77831, an 18W, high-efficiency, high-performance buck-boost regulator that only operates in forced-PWM (FPWM) mode. The IC is capable of 2.5V to 16V input and dynamically adjustable output between 4.5V to 15V when using internal feedback resistors, or between 3V to 15V when using external feedback resistors. The EV kit is factory-configured as internal feed- back with the default startup output voltage at 5V. Other startup voltage can be achieved with external feedback resistors. Output voltage can be adjusted dynamically through the I2C serial interface.

The I/O pins are available to support the I2C serial inter- face, Enable function, and Interrupt/Power-OK indicator. The I2C slave address, switching current limit, and feed- back configuration can be adjusted by changing the RSEL resistor value (R9). The MAXUSB interface allows the use of Windows®-based software with a friendly graphical user interface (GUI) as well as a detailed register-based interface to exercise all the features of the IC. The IC installed on the EV kit is the MAX77831BEWB+T.

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特征

  • Proven PCB Reference Design and Layout Benefit
  • Fully Assembled and Tested
  • Sense Points for High-Accuracy Measurements
  • Accessible Test Point Pins for EN, POKB/INTB, VIO, and the I2C Serial Interface SCL, SDA
  • MAXUSB Interface that Allows Easy Communication with a Windows PC
  • GUI Software that Drives the I2C Serial Interface for Optional Software Control
  • Startup Output Voltage Adjustable Through External Feedback Resistors
  • Output Voltage Dynamically Adjustable Through the I2C Serial Interface
  • I2C Slave Address, Switching Current Limit, and Feedback Configuration Adjustable Using RSEL (R9)

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工具和模型

EE-Sim: 设计和仿真MAX77831

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支持与训练

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参量

Parametric specs for Step-Down/Up (Buck Boost) Regulator
VIN (V) (min) 2.5
VIN (V) (max) 16
VOUT1 (V) (min) 3
VOUT1 (V) (max) 15
Switch Type Internal
Preset VOUT (V) 5
Output Adjust. Method I2C
Preset
Resistor
Synchronous Switching Yes
# DC-DC Outputs 1
Alternate Topology Buck-Boost
Design Tools EE-Sim
Package/Pins WLP/35
Oper. Temp. (°C) -40 to +125

主要特征

应用/用途

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描述

技术文档

支持与训练

Search our knowledge base for answers to your technical questions.

过滤搜索

Our dedicated team of Applications Engineers are also available to answer your technical questions. Visit our support portal.