ICL7660, MAX1044 开关电容电压转换器

ICL7660, MAX1044 开关电容电压转换器

ICL7660, MAX1044 概述

The MAX1044 and ICL7660 are monolithic, CMOS switched-capacitor voltage converters that invert, double, divide, or multiply a positive input voltage. They are pin compatible with the industry-standard ICL7660 and LTC1044. Operation is guaranteed from 1.5V to 10V with no external diode over the full temperature range. They deliver 10mA with a 0.5V output drop. The MAX1044 has a BOOST pin that raises the oscillator frequency above the audio band and reduces external capacitor size requirements.

The MAX1044/ICL7660 combine low quiescent current and high efficiency. Oscillator control circuitry and four power MOSFET switches are included on-chip. Applications include generating a -5V supply from a +5V logic supply to power analog circuitry. For applications requiring more power, the MAX660 delivers up to 100mA with a voltage drop of less than 0.65V.

ICL7660, MAX1044 关键特性

Miniature µMAX Package

1.5V to 10.0V Operating Supply Voltage Range

98% Typical Power-Conversion Efficiency

Invert, Double, Divide, or Multiply Input Voltages

BOOST Pin Increases Switching Frequencies (MAX1044)

No-Load Supply Current: 200µA Max at 5V

No External Diode Required for Higher-Voltage Operation

ICL7660, MAX1044 应用/使用

从+5V逻辑电源产生-5V电源
	数据采集
	EIA/TIA-232E和EIA/TIA-562电源
	手持式仪表(PDA、掌上电脑)
	运算放大器电源
	面板表
	个人通信设备
	便携式电话

ICL7660, MAX1044 应用电路

典型工作电路

电容电压voltagecapacitorconverters

免责声明：本网信息来自于互联网，目的在于传递更多信息，并不代表本网赞同其观点。其原创性以及文中陈述文字和内容未经本站证实，对本文以及其中全部或者部分内容、文字的真实性、完整性、及时性本站不作任何保证或承诺，并请自行核实相关内容。本站不承担此类作品侵权行为的直接责任及连带责任。如若本网有任何内容侵犯您的权益，请及时联系我们，本站将会在24小时内处理完毕。