MAX608:5V或可调、低电压、升压型DC-DC控制器

1A升压型转换器,能够以极高效率提升2V输入

The MAX608 low-voltage step-up controller operates from a 1.8V to 16.5V input voltage range. Pulse-frequency-modulation (PFM) control provides high efficiency at heavy loads, while using only 85µA (typical) when operating with no load. In addition, a logic-controlled shutdown mode reduces supply current to 2µA typical. The output voltage is factory-set at 5V or can be adjusted from 3V to 16.5V with an external resistor divider. The MAX608 is ideal for two- and three-cell battery-powered systems. An operating frequency of up to 300kHz allows use with small surface-mount components. The MAX608 operates in "bootstrapped" mode only (with the chip supply, OUT, connected to the DC-DC output). For a 12V output without external resistors, or for nonbootstrapped applications (chip supply connected to input voltage), refer to the pin-compatible MAX1771. The MAX608 is available in 8-pin DIP and SO packages.

关键特性
  • 1.8V to 16.5V Input Range
  • 85% Efficiency for 30mA to 1.5A Load Currents
  • Up to 10W Output Power
  • 110µA Max Supply Current
  • 5µA Max Shutdown Current
  • Preset 5V or Adjustable Output (3V to 16.5V)
  • Current-Limited PFM Control Scheme
  • Up to 300kHz Switching Frequency
  • Evaluation Kit Available
MAX608:典型工作电路
MAX608:典型工作电路
应用
  • 电池供电应用
  • 高效DC-DC转换器
  • 便携式通信装置
  • LCD正偏置发生器
数据手册DataSheet
语言下载文件备注
英文MAX608.pdfRev 0; 09/1995
关键参数
Part NumberVIN
(V)
VIN
(V)
VOUT1
(V)
VOUT1
(V)
Preset VOUT
(V)
IOUT1
(A)
Output Adjust. MethodSwitch TypeICC
(mA)
Shutdown Mode Supply Current
(µA)
DC-DC OutputsOper. Freq.
(kHz)
Package/PinsBudgetary
Price
minmaxminmaxmaxtypmaxSee Notes
MAX6081.816.5316.551ResistorExternal0.08551300
  • PDIP(N)/8
  • SOIC(N)/8
$1.99 @1k
开发工具
技术资料
相关产品
  • MAX1771:12V或可调、高效率、低IQ、升压型DC-DC控制器
订购型号
型号状况推荐替代产品封装温度RoHS/无铅
MAX608C/D停止供货DICE SALES,;NA引脚;DICE;0°C至+70°C参考数据资料
MAX608EPA停止供货MAX608EPA+PDIP(N),;8引脚;79.7mm²-40°C至+85°CRoHS/无铅:否
MAX608EPA+生产中PDIP(N),;8引脚;79.7mm²-40°C至+85°CRoHS/无铅:无铅
MAX608ESA停止供货MAX608ESA+SOIC(N),;8引脚;30.9mm²-40°C至+85°CRoHS/无铅:否
MAX608ESA+生产中SOIC(N),;8引脚;30.9mm²-40°C至+85°CRoHS/无铅:无铅
MAX608ESA+T生产中SOIC(N),;8引脚;30.9mm²-40°C至+85°CRoHS/无铅:无铅
MAX608ESA-T停止供货MAX608ESA+TSOIC(N),;8引脚;30.9mm²-40°C至+85°CRoHS/无铅:否
MAX608.pdf MAX608
Circuit Connection Adds Current-Mode Operation to PFM Boost Converters MAX933
Extend Battery Life with Dual Power Supply for Wallcube/Battery-Powered Systems MAX1705