MAX850

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)


点击查看特定型号的库存状况。

说明

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).
MAX850、MAX851、MAX852、MAX853:典型工作电路 MAX850、MAX851、MAX852、MAX853:典型工作电路 放大+

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

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

请查看具体的参数规格 Charge Pumps (45)


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
$1.73 @1k
MAX851 -4.1
SOIC (N)/8
MAX853 -9
SOIC (N)/8
WLP/6

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。

MAX850EVKIT: MAX850、MAX851、MAX852、MAX853评估板
申请可靠性报告: MAX850 
型号   生产流程   工艺   样本量   不合格   FIT @ 25°C   FIT @ 55°C   Material Composition  

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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