MAX852数据手册集成电路（IC）的电源管理-专用规格书PDF

描述 Description

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).

特性 Features

• 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 Application

• 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

简介

MAX852属于集成电路（IC）的电源管理-专用。由制造生产的MAX852电源管理 - 专用专用型电源管理集成电路 (PMIC) 用于电源的控制或操作，适合特定或小范围的目标应用，例如汽车气囊管理、电容器组平衡、AC 公共电力监控、存储器总线端接、接地故障检测、能量收集、小型引擎管理、处理器或芯片集专用电压调节、负载突降保护、触觉驱动器、热电制冷器控制等。