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SP1937S35RGB 参数 Datasheet PDF下载

SP1937S35RGB图片预览
型号: SP1937S35RGB
PDF下载: 下载PDF文件 查看货源
内容描述: DC-DC升压转换器,用于白光LED [DC-DC Step-Up Converter for White LED]
分类和应用: 转换器升压转换器
文件页数/大小: 12 页 / 391 K
品牌: SYNC-POWER [ SYNC POWER CROP. ]
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SP1937
DC-DC Step-Up Converter for White LED
DESCRIPTION
The SP1937 is a step-up DC/DC converter for white
LED driver with constant current. The device can driver
one to four LEDs in series from a single cell Lithium
Ion battery. Internal functions include current limiting;
thermal shutdown and soft-start to prevent damage
operate status. The SP1937 DC/DC converter operates
at 1.2MHz and low output capacitor as small as 0.22uF;
apply to Lithium-Ion powered systems. A low 95mV
(Typ) reference voltage minimizes power loss in the
current setting resistor for better efficiency.
APPLICATIONS
Battery Power Equipment
Notebook Computers
PDA
Cellular Phone
Digital Cameras
MP3 Players
GPS Receivers
FEATURES
Fast 1.2MHz Switching Frequency
High Efficiency up to 85%
Drives up to Four LEDs From 3.2V Supply
Low Quiescent Current
Disconnects LEDs in Shutdown Mode
Internal Over Temperature and Current Limiting
Shutdown Function
36V Rugged Bipolar Switch
Small Package SOT-23-5L & SOT-353
PIN CONFIGURATION
SOT-23-5L
SOT-353 ( SC-70-5L )
PART MARKING
SOT-23-5L
SOT-353 ( SC-70-5L )
2009/06/15
Ver.5
Page 1