MAX77813

高效升/降压转换器

业界最高的瞬态响应性能,在整个负载范围内具有高效率


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说明

MAX77813为高效升/降压转换器,适用于单节锂离子电池供电应用。器件支持2.30V至5.5V输入电压范围,输出电压范围为2.60V至5.14V。器件在升压和降压模式下分别支持高达2A和3A输出电流。峰值效率为97%,允许更长的工作时间。

器件旨在支持降压和升压模式之间的平稳转换。独特的控制算法使其在电源/负载瞬态响应方面拥有高效率和出色的性能。I2C兼容串行接口提供设计灵活性,以优化性能,并具有保护功能。输出电压可动态调节,精细控制系统功耗。器件支持两个输入电流限值,可由ILIM逻辑输入设置。

MAX77813采用1.827mm x 2.127mm、20焊球晶圆级封装(WLP)。

MAX77813: Typical Application Circuit MAX77813: Typical Application Circuit 放大+

关键特性

  • VIN范围:2.30V至5.5V
  • VOUT范围:2.60V至5.14V
  • (可通过I2C编程,步长为20mV)
  • 升压模式下输出电流高达2A
  • (VIN = 3.0V,VOUT = 3.4V,ILIM = 高电平)
  • 降压模式下输出电流高达3A(ILIM = 高电平)
  • 峰值效率高达97%
  • 跳脉冲模式,具有最优轻载效率
  • 55μA (典型值)低静态电流
  • 3.4MHz高速I2C串行接口
  • 输入电流限值选择引脚
  • 电源就绪输出
  • 2.5MHz开关频率
  • 保护功能
    • 软启动
    • 热关断
    • 过压保护
    • 短路保护
  • 1.827mm x 2.127mm、20焊球WLP封装

应用

  • 单节锂离子电池供电应用
  • 手持式扫描仪、移动支付终端、安全摄像机
  • AR/VR头盔
Part NumberVIN
(V)
VIN
(V)
VOUT1
(V)
VOUT1
(V)
Preset VOUT
(V)
IOUT1
(A)
IOUT1
(A)
Output Adjust. MethodSwitch TypeSynchronous SwitchingPower Good SignalDC-DC OutputsAlternate TopologyOper. Freq.
(kHz)
Design ToolsPackage/PinsOper. Temp.
(°C)
Budgetary
Price
minmaxminmaxSee Notes
MAX77813 2.35.52.65.14
3.3
3.4
22PresetInternalYesYes1
Step-Down
Step-Up
2500EE-Sim
WLP/20
-40 to +125$0.89 @1k
查看所有Step-Down/Up Switching Regulators (30)
Pricing Notes:
价格仅供参考,用于同类产品的比较。所提供报价为美元,需要依汇率折合成人民币。该价格将因当地关税、税率和汇率而异。有关特定订购量和指定版本的报价和供货问题,请参考:价格与供货网站或与指定代理商联系。


MAX77813EVKIT: MAX77813评估套件

质量和环境数据

申请可靠性报告: MAX77813 
无铅封装的锡(Sn)晶须报告

工具和模型

  • EE-Sim: MAX77813 设计和仿真
  • MAX77813 SIMPLIS Schematic
  • 型号   生产流程   工艺   样本量   不合格   FIT @ 25°C   FIT @ 55°C  

    备注: 通过技术手段对故障率进行汇总,并映射到相关的材料部件号。 故障率与被测件的数量密切相关。

    质量管理体系 >
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