MAX861:50mA、频率可选的开关电容电压变换器

无电感反向器/正电源倍压电路,开关频率高达250kHz

The MAX860/MAX861 charge-pump voltage converters invert input voltages ranging from +1.5V to +5.5V, or double input voltages ranging from +2.5V to +5.5V. Because of their high switching frequencies, these devices use only two small, low-cost capacitors. Their 50mA output makes switching regulators unnecessary, eliminating inductors and their associated cost, size, and EMI. Greater than 90% efficiency over most of the load-current range, combined with a typical operating current of only 200µA (MAX860), provides ideal performance for both battery-powered and board-level voltage-conversion applications. A frequency-control (FC) pin provides three switching-frequencies to optimize capacitor size and quiescent current and to prevent interference with sensitive circuitry. Each device has a unique set of three available frequencies. A shutdown (active-low SHDN) pin reduces current consumption to less than 1µA. The MAX860/MAX861 are suitable for use in applications where the ICL7660 and MAX660's switching frequencies are too low. The MAX860/MAX861 are available in 8-pin µMAX® and SO packages.

关键特性
  • 8-Pin, 1.11mm High µMAX Package
  • Invert or Double the Input Supply Voltage
  • Three Selectable Switching Frequencies
  • High Frequency Reduces Capacitor Size
  • 87% Efficiency at 50mA
  • 200µA Quiescent Current (MAX860)
  • 1µA Shutdown Supply Current
  • 600mV Voltage Drop at 50mA Load
  • 12Ω Output Resistance
MAX860、MAX861:典型工作电路
MAX860、MAX861:典型工作电路
应用
  • 手持式仪表(PDA、掌上电脑)
  • 接口供电
  • 医疗仪器
  • 运算放大器电源
  • 便携式计算机
数据手册DataSheet
语言下载文件备注
英文MAX860-MAX861.pdfRev 3; 08/2013
关键参数
Part NumberTopologyVIN
(V)
VIN
(V)
ICC
(mA)
Unadj. VOUT
(V)
IOUT
(A)
Oper. Freq.
(kHz)
Oper. Temp.
(°C)
Package/PinsBudgetary
Price
minmaxmaxtypSee Notes
MAX860
  • Doubler
  • Inverter
  • Unregulated
1.55.50.3
  • +2xVIN
  • -VIN
0.05130
  • -55 to +125
  • -40 to +85
  • 0 to +70
  • µMAX/8
  • CDIP(N)/8
  • PDIP(N)/8
  • SOIC(N)/8
$1.17 @1k
MAX8610.4250
  • µMAX/8
  • CDIP(N)/8
  • SOIC(N)/8
$1.12 @1k
技术资料
相关产品
  • MAX1680:125mA、频率可选、开关电容电压变换器
订购型号
型号状况推荐替代产品封装温度RoHS/无铅
MAX861CSA停止供货MAX861CSA+SOIC(N),;8引脚;30.9mm²0°C至+70°CRoHS/无铅:否
MAX861CSA+生产中MAX861ISASOIC(N),;8引脚;30.9mm²0°C至+70°CRoHS/无铅:无铅
MAX861CSA+T生产中MAX861ISASOIC(N),;8引脚;30.9mm²0°C至+70°CRoHS/无铅:无铅
MAX861CSA-T停止供货MAX861CSA+TN.SO;0°C至+70°C参考数据资料
MAX861CUA停止供货MAX861IUAµMAX,;8引脚;15.6mm²0°C至+70°CRoHS/无铅:否
MAX861CUA+生产中µMAX,;8引脚;15.6mm²0°C至+70°CRoHS/无铅:无铅
MAX861CUA+T生产中µMAX,;8引脚;15.6mm²0°C至+70°CRoHS/无铅:无铅
MAX861CUA-T停止供货MAX861IUAµMAX,;8引脚;15.6mm²0°C至+70°CRoHS/无铅:否
MAX861ESA停止供货MAX861ESA+SOIC(N),;8引脚;30.9mm²-40°C至+85°CRoHS/无铅:否
MAX861ESA+生产中SOIC(N),;8引脚;30.9mm²-40°C至+85°CRoHS/无铅:无铅
型号状况推荐替代产品封装:类型 引脚 占位面积封装图 编码/变更 *温度RoHS/无铅?
MAX861ESA+T生产中SOIC(N),;8引脚;30.9mm²-40°C至+85°CRoHS/无铅:无铅
MAX861ESA-T停止供货MAX861ESA+TSOIC(N),;8引脚;30.9mm²-40°C至+85°CRoHS/无铅:否
MAX861ESA/V+停止供货MAX16945TGUT/V+SOIC(N),;8引脚;30.9mm²-40°C至+85°CRoHS/无铅:无铅
MAX861ESA/V+T停止供货MAX16945TGUT/V+TN.SO;-40°C至+85°C参考数据资料
MAX861ISA停止供货MAX861ISA+SOIC(N),;8引脚;30.9mm²-20°C至+85°CRoHS/无铅:否
MAX861ISA+生产中SOIC(N),;8引脚;30.9mm²-20°C至+85°CRoHS/无铅:无铅
MAX861ISA+T生产中SOIC(N),;8引脚;30.9mm²-20°C至+85°CRoHS/无铅:无铅
MAX861ISA-T停止供货MAX861ISA+TSOIC(N),;8引脚;30.9mm²-20°C至+85°CRoHS/无铅:否
MAX861IUA最后一次购买µMAX,;8引脚;15.6mm²-20°C至+85°CRoHS/无铅:否
MAX861IUA+生产中µMAX,;8引脚;15.6mm²-20°C至+85°CRoHS/无铅:无铅
型号状况推荐替代产品封装:类型 引脚 占位面积封装图 编码/变更 *温度RoHS/无铅?
MAX861IUA+T生产中µMAX,;8引脚;15.6mm²-20°C至+85°CRoHS/无铅:无铅
MAX861IUA-T停止供货MAX861IUA+TµMAX,;8引脚;15.6mm²-20°C至+85°CRoHS/无铅:否
MAX861MJA停止供货CDIP(N),;8引脚;82.6mm²-55°C至+125°CRoHS/无铅:否
MAX861MJA/PR2停止供货CDIP(N),;8引脚;82.6mm²-55°C至+125°CRoHS/无铅:否
MAX860-MAX861.pdf MAX861
DC-DC Conversion Without Inductors MAX871
MAX860-MAX861.pdf MAX861