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富威集团代理产线Summit推出SMB207/208/209 A微型可编程Buck Regulators芯片

 2011-03-09
富威集团代理产线Summit推出SMB20X/20XA 一系列DC-DC regulators,此系列是具有高整合度和可程式化的产品,可广泛的被应用在各种不同的产品设计中,能减少外部使用的零件,使得PCB的使用空间缩小,降低成本和缩短开发的时间。

•工作

范围

 : Vin +4.5V ~ +16V、-40℃ ~ +85℃
•IC 封装 : 3mm x 3mm 20-pad QFN

SMB207/A(1A*2) & SMB208/A(2A*2)方块图 &

线路


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SMB209/A(4A*1)方块图 &

线路


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Package size
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产品特性
•Single/Dual Step-Down DC-DC Outputs
-Integrated power MOSFET switches
-1A/2A/4A output

current

 with built in

current

 limit
-Input voltage range: +4.5V to +16V
-+0.8V to +5.0V output voltage (+/-2.5%

accuracy

)
-Automatic PFM mode for light

load

 efficiency
-180〫

phase

 interleave (SMB207/A/208/A)
-Integrated

frequency

 compensation
-Input undervoltage lockout (UVLO)

•Integrated Power Control and Programmability
-I2C Digital or Pin Control
-Coarse and Fine Output Voltage Setting
-16-level “Coarse” nominal setpoint : +0.8V to +1.8V @ 100mV/step
+2.5/2.3/3.0/3.3/5.0V
-8-level “Fine” Margining (20XA only) : +1.14% to +7.95% (vs. coarse setting)
-PWM

frequency

: 500kHz or 1MHz
-Output up/down sequence (SMB207/A/208/A)
-Digital output softstart/stop
-Output UV

monitoring

 with PGOOD/

RESET

 output
-Independent output enable pins (SMB207/A/208/A)
4-1.jpg


Efficiency
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产品应用
•Digital Television
•Cable/Satellite STB
•Broadband Modems/Gateways/Routers
•SOHO Datacom Equipment
•Embedded Computers
•Disk Drives
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欲知更多代理产线产品资讯欢迎前往富威集团网站: http://www.rich-power.com.tw/