MAX1724

1.5µA IQ、升压DC-DC转换器,TSOT和µDFN封装


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说明

MAX1722/MAX1723/MAX1724紧凑、高效、升压型DC-DC转换器采用5引脚TSOT小尺寸封装。具有低至1.5µA的静态电源电流,提供更高的轻载效率。这些器件优化于1至2节碱性电池或NiMH电池、或1节Li+电池应用,非常适合那些需要极低静态电流和超小尺寸的应用。

内置同步整流器、无需外部肖特基二极管,提高了效率、并降低了尺寸和成本。这三个器件均具有0.5Ω N沟道功率开关管,MAX1722/MAX1724还采用了专用的噪声抑制电路,可有效降低在许多升压电路中电感产生的电磁干扰(EMI)。该系列产品提供固定或可调输出、关断、EMI抑制等不同特性的组合(参考完整数据资料中的Selector Guide)。
MAX1722:典型工作电路 MAX1722:典型工作电路 放大+

关键特性

  • 高达90%的效率
  • 无需外部肖特基二极管或FET
  • 1.5µA静态供电电流
  • 0.1µA逻辑控制的关断电流
  • ±1%输出电压精度
  • 固定输出(MAX1724)或可调输出(MAX1722/MAX1723)
  • 输出电流达150mA
  • 0.8V至5.5V输入电压范围
  • 保证0.91V启动(MAX1722/MAX1724)
  • 内置EMI抑制电路(MAX1722/MAX1724)
  • TSOT封装(典型厚度为0.9mm)
  • µDFN封装(2mm x 2mm x 0.75mm)

应用

  • 数码相机
  • 低功耗手持仪表
  • MP3播放器
  • 寻呼机
  • PDA及其它手持设备
  • 个人医疗设备
  • 远端控制
  • 远端无线发送器
  • 单节电池供电设备
Part NumberVIN
(V)
VIN
(V)
VOUT1
(V)
VOUT1
(V)
Preset VOUT
(V)
IOUT1
(A)
Output Adjust. MethodSwitch TypeSynchronous SwitchingICC
(mA)
Shutdown Mode Supply Current
(µA)
DC-DC OutputsPackage/PinsBudgetary
Price
minmaxminmaxtyptypSee Notes
MAX1722 0.85.525.5-0.15ResistorInternalYes0.00150.11
TSOT/5
UDFN/6
$0.76 @1k
MAX1723 25.5-Resistor
TSOT/5
UDFN/6
MAX1724 2.75
2.7
3
3.3
5
Preset
TSOT/5
UDFN/6
查看所有Step-Up Switching Regulators (96)
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。


MAX1724EVKIT: MAX1722、MAX1723、MAX1724评估板
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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