MAX38642

微小尺寸、1.8V–5.5V输入、330nA IQ、700mA nanoPower降压型转换器

延长电池寿命 — 330nA静态电流、5nA关断电流和96%峰值效率


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说明

MAX3864xA/B为nanoPower家族超低330nA静态电流buck (降压型) DC-DC转换器,工作在1.8V至5.5V输入电压范围,支持高达175mA、350mA、700mA负载电流,峰值效率为96%。关断时的关断电流仅为5nA。器件拥有超低静态电流、较小方案总尺寸,在整个负载范围之内都保持高效率。MAX3864xA/B可理想用于长电池寿命至关重要的电池供电应用。

MAX3864xA/B家族采用独特的控制方法,允许在较宽输出电流范围内保持超低静态电流和高效率。MAX38642不带有片上有源放电电阻,在关断状态下,输出可以由其他源或充电的输出电容对其进行调节,或将其保持为高电平。

MAX3864xA/B器件采用节省空间的1.42mm x 0.89mm、6引脚晶圆级封装(WLP) (2 x 3焊球,0.4mm焊距),以及2mm x 2mm、6引脚μDFN封装。所有器件工作在-40°C至+85°C温度范围。

Design Solution: Make Your Small Asset Tracker Last Longer ›

MAX38640, MAX38641, MAX38642, MAX38643: Typical Operating Circuit MAX38640, MAX38641, MAX38642, MAX38643: Typical Operating Circuit 放大+

关键特性

  • 延长电池寿命
    • 330nA超低静态电流
    • 5nA关断电流
    • 96%峰值效率,以及10μA时的效率高于88%
  • 使用简单 — 符合常见操作
    • 输入电压范围:1.8V至5.5V
    • 单电阻可调范围:VOUT0.7V至3.3V(A选项)
    • 可编程范围:VOUT:0.5V至5.0V(B-选项)
    • 单电阻可调节VOUT:0.7V至3.3V
    • 输出电压精度:±1.75%
    • 负载电流:高达175mA/350mA/700mA
  • 在多种用例条件下保护系统
    • 关断模式下具有反向电流保护
    • 可选有源放电特性
  • 减小尺寸、提高可靠性
    • -40°C至+85°C温度范围
    • 2mm x 2mm 6-pin μDFN封装
    • 1.42mm x 0.89mm、0.4mm焊距、6引脚(2 x 3) WLP封装

应用

  • 便携式、空间受限消费电子产品
  • 单节锂离子电池和纽扣电池供电产品
  • 便携式、空间受限消费电子产品
  • 有线、无线、工业产品
Part NumberVIN
(V)
VIN
(V)
VOUT1
(V)
VOUT1
(V)
Preset VOUT
(V)
Output Adjust. MethodIOUT1
(A)
Switch TypeSynchronous SwitchingDC-DC OutputsDesign ToolsPackage/PinsBudgetary
Price
minmaxminmaxSee Notes
MAX38640A 1.85.50.75.50.5V to 5V
Preset
Resistor
0.175InternalYes1EE-Sim
THIN WLP/6
UDFN/6
$0.70 @1k
MAX38641A 0.35-
THIN WLP/6
UDFN/6
-
MAX38642A 0.35-
THIN WLP/6
UDFN/6
-
MAX38643A 0.7-
THIN WLP/6
UDFN/6
-
查看所有Step-Down Switching Regulators (367)
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。


MAX38640EVKIT-WLP: WLP封装MAX38640,MAX38641, MAX38642, MAX38643评估套件
MAX38641AEVK-WLP: Evaluation Kit for the MAX38641 A in WLP
MAX38642AEVK-WLP: Evaluation Kit for the MAX38642 A in WLP
MAX38643AEVK-WLP: Evaluation Kit for the MAX38643 A in WLP
MAX38640AEVK-WLP: Evaluation Kit for the MAX38640 A in WLP
MAX38640AEVK-UDFN: Evaluation Kit for the MAX38640 A in μDFN
MAX38642AEVK-UDFN: Evaluation Kit for the MAX38642 A in μDFN
MAX38643AEVK-UDFN: Evaluation Kit for the MAX38643 A in μDFN
MAX38641AEVK-UDFN: Evaluation Kit for the MAX38641 A in μDFN

工具和模型

  • EE-Sim: MAX38642 设计和仿真
  • CAD Symbols and Footprints

  • MAX38642AELT+
  • MAX38642AENT+
  • MAX38642BELT+
  • MAX38642BENT+
  • 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。

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