MAX851:低噪声、稳压型、负输出电荷泵,用于GaAsFET偏置电源

1mVP-P输出电压纹波(MAX853)

The MAX850-MAX853 low-noise, inverting, charge-pump power supplies are ideal for biasing GaAsFETs in cellular telephone transmitter amplifiers. The MAX850-MAX852 offer both preset (-4.1V) and adjustable (-0.5V to -9.0V) output voltages. The MAX853 uses an external positive control voltage to set the negative output voltage. Input voltage range for all four devices is 4.5V to 10V. Output current is 5mA. An internal linear regulator reduces the output voltage ripple to 2mVP-P. With a well-filtered control voltage (VCTRL), the MAX853 achieves typical output ripple of less than 1mVP-P. Supply current is 3mA max, and shutdown current is less than 1µA max over temperature (5µA max for MAX851).

关键特性
  • Fixed -4.1V or Adjustable -0.5V to -9V Output at 5mA
  • 4.5V to 10V Input Voltage Range
  • 2mVP-P Output Voltage Ripple (MAX850-MAX852)
  • 1mVP-P Output Voltage Ripple (MAX853)
  • 100kHz Charge-Pump Switching Frequency (MAX850/MAX851/MAX853)
  • External Synchronizing Clock Input (MAX852)
  • Logic-Level Shutdown Mode: 1µA Max Over Temperature (MAX850/MAX852/MAX853)
  • Low Cost, 8-Pin SO Package
MAX850、MAX851、MAX852、MAX853:典型工作电路
MAX850、MAX851、MAX852、MAX853:典型工作电路
应用
  • 蜂窝电话
  • 连续可调的GaAsFET偏置
  • LCD偏置对比度控制
  • 负电源调节电源
  • 个人通信装置、PDA
  • 无线数据记录仪
数据手册DataSheet
语言下载文件备注
英文MAX850-MAX853.pdfRev 2; 04/1996
关键参数
Part NumberTopologyVIN
(V)
VIN
(V)
ICC
(mA)
Unadj. VOUT
(V)
Adj. VOUT
(V)
Adj. VOUT
(V)
IOUT
(A)
Oper. Freq.
(kHz)
Oper. Temp.
(°C)
Package/PinsBudgetary
Price
minmaxmaxminmaxtypSee Notes
MAX850
  • Inverter
  • Regulated
4.5103-4.1-VIN-0.6-0.50.005100
  • -40 to +85
  • -20 to +85
SOIC(N)/8$1.65 @1k
MAX851-4.1SOIC(N)/8
MAX853-9SOIC(N)/8
开发工具
相关产品
  • MAX881R:低噪声偏置电源、µMAX封装,带有电源就绪指示,用于GaAsFET PA
订购型号
型号状况推荐替代产品封装温度RoHS/无铅
MAX851CSA停止供货SOIC(N),;8引脚;30.9mm²0°C至+70°CRoHS/无铅:否
MAX851CSA-T停止供货N.SO;0°C至+70°C参考数据资料
MAX851ESA停止供货SOIC(N),;8引脚;30.9mm²-40°C至+85°CRoHS/无铅:否
MAX851ESA-T停止供货N.SO;8引脚-40°C至+85°C参考数据资料
MAX851ISA停止供货MAX851ISA+SOIC(N),;8引脚;30.9mm²-20°C至+85°CRoHS/无铅:否
MAX851ISA+生产中SOIC(N),;8引脚;30.9mm²-20°C至+85°CRoHS/无铅:无铅
MAX851ISA+T生产中N.SO;8引脚-20°C至+85°C参考数据资料
MAX851ISA-T停止供货MAX851ISA+TN.SO;8引脚-20°C至+85°C参考数据资料
MAX850-MAX853.pdf MAX853
MAX850-MAX853.pdf MAX853