MAX850, MAX851, MAX852, MAX853 低噪声、稳压型、负输出电荷泵，用于GaAsFET偏置电源

1mV_P-P输出电压纹波(MAX853)

状态
型号	状态
MAX850	状况：生产中。
MAX851	状况：生产中。
MAX852	该产品即将停产，已进入最后一次购买期限，在此之后将不受理该产品订单。推荐替代产品请查看订购信息。
MAX853	状况：生产中。

概述

完整的数据资料 (PDF, 128kB)

英文下载
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 2mV_P-P. With a well-filtered control voltage (V_CTRL), the MAX853 achieves typical output ripple of less than 1mV_P-P. Supply current is 3mA max, and shutdown current is less than 1µA max over temperature (5µA max for MAX851).

现备有评估板： MAX850EVKIT

关键特性 应用/使用

Fixed -4.1V or Adjustable -0.5V to -9V Output at 5mA
4.5V to 10V Input Voltage Range
2mV_P-P Output Voltage Ripple (MAX850-MAX852)
1mV_P-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

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

Key Specifications: Charge Pumps

Part Number Topology V_IN
(V) V_IN
(V) I_CC
(mA) Unadj. V_OUT
(V) Adj. V_OUT
(V) Adj. V_OUT
(V) I_OUT
(A) Oper. Freq.
(kHz) Features Oper. Temp.
(°C) Package/Pins Smallest Available Pckg.
(mm²) Price

min max max min max typ max w/pins See Notes

MAX850

Inverter

Regulated
4.5 10 3 -4.1 -V_IN-0.6 -0.5 0.005 100 Shutdown

-40 to +85

-20 to +85

SOIC(N)/8
30.9 $1.65 @1k

MAX851 -4.1

SOIC(N)/8
$1.65 @1k

MAX853 -9

SOIC(N)/8
$1.65 @1k

查看所有 Charge Pumps (48)

图表

典型工作电路

source：ShenZhen henlito electronic co.,ltd.

web:www.henlito.com