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Maxim产品 - MAX77801介绍

MAX77801 - High-Efficiency Buck-Boost Regulator

MAX77801是Maxim美信半导体公司的一款DC-DC开关调节器产品，MAX77801是High-Efficiency Buck-Boost Regulator，本站介绍了MAX77801的封装应用图解、特点和优点、功能等，并给出了与MAX77801相关的Maxim元器件型号供参考。

MAX77801 - High-Efficiency Buck-Boost Regulator - DC-DC开关调节器 - 2A High-Efficiency Buck and Boost Operating Including Seamless Transition Between Buck and Boost Mode - 美信半导体

产品概述

The MAX77801 is a high-current, high-efficiency buck-boost targeted to mobile applications that use a Li-ion battery or similar chemistries. The MAX77801 utilizes a four-switch H-bridge configuration to support buck and boost operating modes. Buck-boost provides 2.60V to 4.1875V of output voltage range and up to 2A output current.

A unique control algorithm allows high efficiency, outstanding performances in line/load transient response, and seamless transition between buck and boost modes.

DVS (dynamic voltage scaling) input allows the host processor to switch between two preprogrammed output voltages. This feature minimizes power loss for given load conditions. The ramp-up and ramp-down slew rates are programmable through I²C.

The MAX77801 features I²C-compatible, 2-wire serial interface consisting of a bidirectional serial-data line (SDA) and a serial-clock line (SCL). It supports SCL clock rates up to 3.4MHz.

关键特性
  • 以下关键特性由Maxim美信半导体提供：
  • 2A High-Efficiency Buck and Boost Operation Including Seamless Transition Between Buckand Boost Mode
  • Flexibility Supports Various Designs
  • VOUT Range from 2.60V to 4.1875V with 12.5mV Step
  • High-Speed (Up to 3.4MHz) I²C Serial Interface
  • Low Quiescent Current, High Efficiency, and Dynamic Voltage Scaling Enable System to Be More Efficient
  • DVS Input
  • Up to 97% of Peak Efficiency
  • 55μA Quiescent Current
  • High Switching Frequency and Small Package Reduce Solution Size
  • 2.5MHz Switching Frequency
  • 20-Bump WLP (0.4mm Pitch)
  • Safety Features Enhance Device and System Reliability
  • POK Output
  • Soft-Start
  • True Shutdown?
  • Thermal Shutdown and Short-Circuit Protection
    • 热门应用
  • 电池供电应用
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