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天鈺科技股份有限公司

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 首頁 產品應用 LCD-TV HV Buck DC/DC Converter

FR9886D

Description

The FR9886D is a synchronous step-down DC/DC converter that provides wide 4.5V to 23V input voltage range. There are two packages (SOP-8 & SOP-8(EP)) to support 2A/2.5A continuous output current. The FR9886D fault protection includes cycle-by-cycle current limit, input UVLO, output over voltage protection and thermal shutdown. Besides, adjustable soft-start function prevents inrush current at turn-on. This device uses current mode control scheme which provides fast transient response. Internal Compensation function reduces external compensation components and simplifies the design process. In shutdown mode, the supply current is less than 1μA. The FR9886D is available in SOP-8/SOP-8 (Exposed Pad) packages. It is RoHS compliant and 100% lead (Pb) free.

 
Features

檔案下載

● High Efficiency Synchronous Buck Converter with Low ISD(<1μA)
● Low Rds(on) Integrated Power MOSFET
● Internal Compensation Function
● Wide Input Voltage Range: 4.5V to 23V
● Adjustable Output Voltage from 0.925V to 20V
● 2A Output Current (Package: SOP-8)
● 2.5A Output Current (Package: SOP-8(EP))
● Fixed 340KHz Switching Frequency
● Current Mode Operation
● Adjustable Soft-Start
● Cycle-by-Cycle Current Limit
● Input Under Voltage Lockout
● Over-Temperature Protection with Auto Recovery
● SOP-8 and SOP-8 Exposed Pad Packages
 
Applications
● STB (Set-Top-Box)
● LCD Display, TV
● Distributed Power System
● Networking, XDSL Modem
 

Pin Assignments

Ordering Information

 

 

Typical Application Circuit

 
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