Datasheet > SP1937_10

SP1937_10

更新时间： 2024-09-30 12:18:55

品牌	Logo	应用领域
擎力 - SYNC-POWER		转换器升压转换器
页数	文件大小	规格书
12页	391K
描述
DC-DC Step-Up Converter for White LED

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SP1937_10 数据手册

SP1937

DC-DC Step-Up Converter for White LED

DESCRIPTION

APPLICATIONS

Battery Power Equipment

Notebook Computers

PDA

Cellular Phone

Digital Cameras

MP3 Players

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.

GPS Receivers

FEATURES

PIN CONFIGURATION

SOT-23-5L

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

SOT-353 ( SC-70-5L )

36V Rugged Bipolar Switch

Small Package SOT-23-5L & SOT-353

PART MARKING

SOT-23-5L

SOT-353 ( SC-70-5L )

2009/06/15 Ver.5

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