美信半导体，Maxim官网，Maxim代理商
Maxim(美信半导体,AD)产品型号搜索：
专营Maxim（美信半导体）元器件，强大的现货交付能力，解决您的采购难题
全流程提供Maxim（美信半导体）现货供应链服务
当前位置：美信半导体代理 > > 美信芯片 >> MAX669
MAX669技术文档下载：
MAX669技术文档产品手册下载
MAX669 - 典型电路框图：
MAX669典型电路框图
Maxim美信半导体芯片：
承诺原装正品
专营Maxim美信，真正优化您的供应链
Maxim产品 - MAX669介绍

MAX669 - 1.8V至28V输入、PWM升压型控制器，µMAX封装

MAX669是Maxim美信半导体公司的一款DC-DC开关调节器产品，MAX669是1.8V至28V输入、PWM升压型控制器，µMAX封装，本站介绍了MAX669的封装应用图解、特点和优点、功能等，并给出了与MAX669相关的Maxim元器件型号供参考。

MAX669 - 1.8V至28V输入、PWM升压型控制器，µMAX封装 - DC-DC开关调节器 - 灵活的转换架构提供升压、SEPIC、反激或隔离拓扑，MAX668输出电压仅受外部元件额定值的限制 - 美信半导体

产品概述

The MAX668/MAX669 constant-frequency, pulse-width modulating (PWM), current-mode DC-DC controllers are designed for a wide range of DC-DC conversion applications including step-up, SEPIC, flyback, and isolated-output configurations. Power levels of 20W or more can be controlled with conversion efficiencies of over 90%. The 1.8V to 28V input voltage range supports a wide range of battery and AC-powered inputs. An advanced BiCMOS design features low operating current (220µA), adjustable operating frequency (100kHz to 500kHz), soft-start, and a SYNC input allowing the MAX668/MAX669 oscillator to be locked to an external clock.

DC-DC conversion efficiency is optimized with a low 100mV current-sense voltage as well as with Maxim's proprietary Idle Mode™ control scheme. The controller operates in PWM mode at medium and heavy loads for lowest noise and optimum efficiency, then pulses only as needed (with reduced inductor current) to reduce operating current and maximize efficiency under light loads. A logic-level shutdown input is also included, reducing supply current to 3.5µA.

The MAX669, optimized for low input voltages with a guaranteed start-up voltage of 1.8V, requires boot-strapped operation (IC powered from boosted output). It supports output voltages up to 28V. The MAX668 operates with inputs as low as 3V and can be connected in either a bootstrapped or non-bootstrapped (IC powered from input supply or other source) configuration. When not bootstrapped, it has no restriction on output voltage. Both ICs are available in an extremely compact 10-pin µMAX® package.

关键特性
  • 以下关键特性由Maxim美信半导体提供：
  • 1.8V Minimum Start-Up Voltage (MAX669)
  • Wide Input Voltage Range (1.8V to 28V)
  • Tiny 10-Pin µMAX Package
  • Current-Mode PWM and Idle Mode Operation
  • Efficiency Over 90%
  • Adjustable 100kHz to 500kHz Oscillator or SYNC Input
  • 220µA Quiescent Current
  • Logic-Level Shutdown
  • Soft-Start
    • 热门应用
  • 音频系统
  • LAN与网络系统
  • POS系统
  • 电信硬件
    • 下面可能是您感兴趣的美信半导体公司DC-DC开关调节器元器件
    节约时间成本，提高采购效率，Maxim官网授权代理
    Maxim(AD)|Maxim公司|Maxim美信半导体芯片授权国内Maxim代理商
    Maxim公司产品现货专家，订购美信半导体公司产品不限最低起订量，Maxim（美信半导体）产品大陆现货即时发货，香港库存3-5天发货，海外库存7-10天发货
    寻找全球Maxim代理商现货货源 - Maxim公司（已被AD亚德诺半导体收购）电子元件在线订购