七星彩今晚会开什么号码查询

SY20489ADC - 5.5V Maximum Output, 3A Valley Current, 1MHz Sync Boost

Features

·       2.5V Minimum Input Voltage

·       Adjustable Output Voltage from 2.5V to 5.5V

·       Min3AValley Current Limit

·       Capable for Seamless Transition between Boost and Bypass Mode

·       Load Disconnect during Shutdown

·       Low RDS(ON) (Main Switch/Synchronous Switch) at 5.0V Output: 50mΩ/90

·       Output OVP Protection

·       Compact Package TSOT23-6

Typical Application

Description

SY20489 is a high efficiency, synchronous, step-up Boost converter designed for one-cell Li-Ion or Li-polymer, or a two to three-cell alkaline Ni-Cd or Ni-MH battery powered applications. It can convert down to 2.5V input voltage and up to 5.5V output voltage. It adopts NMOS for the main switch and PMOS for the synchronous switch.

SY20489 can disconnect the output from input during the shutdown mode. When input voltage exceeds the regulated output voltage, SY20489 enters bypass mode automatically.

Applications

·       All Single Cell Li or Dual Cell Battery Operated Products as MP-3 Player, PDAs, and Other Portable Equipment.

七星彩今晚会开什么号码查询
篮球比分直播爱彩 新手炒股入门 爱彩乐河北11选5 足球14场第17148期奖金 6场半全场开奖奖金查询 快乐时时彩是国家 佳彩国际游戏 太原跑专车赚钱吗 广东快乐十分开奖结果查询历史 pk10牛牛网站