MAX1605:内置30V开关的LCD偏置电源

The MAX1605 boost converter contains a 0.5A internal switch in a tiny 6-pin SOT23 package. The IC operates from a +2.4V to +5.5V supply voltage, but can boost battery voltages as low as 0.8V up to 30V at the output. The MAX1605 uses a unique control scheme providing the highest efficiency over a wide range of load conditions. An internal 0.5A MOSFET reduces external component count, and a high switching frequency (up to 500kHz) allows for tiny surface-mount components. The current limit can be set to 500mA, 250mA, or 125mA, allowing the user to reduce the output ripple and component size in low-current applications. Additional features include a low quiescent supply current and a shutdown mode to save power. The MAX1605 is ideal for small LCD panels with low current requirements, but can also be used in other applications. A MAX1605EVKIT evaluation kit (EV kit) is available to help speed up design time.

关键特性
  • Adjustable Output Voltage up to 30V
  • 20mA at 20V from a Single Li+ Battery
  • 88% Efficiency
  • Up to 500kHz Switching Frequency
  • Selectable Inductor Current Limit (125mA, 250mA, or 500mA)
  • 18µA Operating Supply Current
  • 0.1µA Shutdown Current
  • Avaiable in Two Small Packages
    • 6-Pin TDFN
    • 6-Pin SOT23
MAX1605:典型工作电路
MAX1605:典型工作电路
应用
  • 蜂窝电话/无绳电话
  • 手持终端
  • LCD偏置发生器
  • 数字助理
  • 掌上电脑
  • PDA及其它手持设备
数据手册DataSheet
语言下载文件备注
英文MAX1605.pdfRev 1; 11/2003
关键参数
Part NumberVIN
(V)
VIN
(V)
VOUT1
(V)
VOUT1
(V)
IOUT1
(A)
Output Adjust. MethodSwitch TypeICC
(mA)
Shutdown Mode Supply Current
(µA)
DC-DC OutputsOper. Freq.
(kHz)
Package/PinsBudgetary
Price
minmaxminmaxmaxtyptypSee Notes
MAX16052.55.52.5280.02ResistorInternal0.0180.11500
  • SOT/6
  • TDFN-EP/6
$1.66 @1k
开发工具
技术资料
订购型号
型号状况推荐替代产品封装温度RoHS/无铅
MAX1605ETT+生产中TDFN-EP,;6引脚;9.6mm²-40°C至+85°CRoHS/无铅:无铅
MAX1605ETT+T生产中TDFN-EP,;6引脚;9.6mm²-40°C至+85°CRoHS/无铅:无铅
MAX1605ETT-T停止供货MAX1605ETT+TTDFN-EP,;6引脚;9.6mm²-40°C至+85°CRoHS/无铅:否
MAX1605EUT#G16生产中SOT,;6引脚;9mm²-40°C至+85°C
MAX1605EUT#TG16生产中SOT,;6引脚;9mm²-40°C至+85°C
MAX1605EUT-T停止供货SOT,;6引脚;9mm²-40°C至+85°CRoHS/无铅:否
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