CP2125 Datasheet PDF - CHIP

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CP2125
CHIP

Part Number CP2125
Description White LED Step-up Converter
Page 2 Pages


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Product Brief
CP2125
V0.9
DC/DC Series
Step-Up White-LED Driver with Built-in Over-voltage Protection
www.datasheet4Gu.econmeral Description
The CP2125 is a step-up DC/DC converter specifically designed for
driving white LEDs with a constant current. The device can drive up to 5
white LEDs from a 3.0V power supply. PWM dimming control is
supported to adjust the brightness of white LEDs. The CP2125 switch at
1.1 MHz, allowing the use of tiny components. 105mV/200mV feedback
voltage minimizes the power loss in the current setting resistor for better
efficiency. The CP2125 is equipped with built-in over-voltage protection
function, the SW pin monitors the output voltage and will turn off the
device if an over-voltage condition is present to prevent damage from
an open circuit condition. The CP2125 is available in SOT23-5L
package.
Features
y Inherently matched LED current
y High efficiency: 84%(typical)
y Drives up to 5 LEDs from a 3.0V power supply
y Built-in over-voltage protection
y Fast 1.1 MHz switching frequency
y Shutdown current: <1μA
y Low profile SOT23-5L package
Applications
y Mobile phones
y Digital still cameras
y MP3 players
y PDAs
y GPS receivers
Pin Configurations
SOT23-5L
-40~85
CP2125 Top View
SOT23-5L
Copyright ©2007 Chiphomer Technology Limited
1



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Product Brief
CP2125
V0.9
DC/DC Series
Step-Up White-LED Driver with Built-in Over-voltage Protection
Typical Application Circuit(s)
www.datasheet4u.com
Contact with Chiphomer
4F, Building D, 1618 Yishan Road Shanghai, 201103, P.R.C.
Tel: (86)21-64014543 64058488
Fax: (86)21-64050030
Sale: sales@chiphomer.com
Technical support: support@chiphomer.com
Web site: www.chiphomer.com
Shenzhen Office:
10D, Building 2, Dushi Yangguang Garden CheGongMiao, Futian District, Shenzhen, 518048,
P.R.C.
Tel: (86)755-82046706 82047789
Fax: (86)755-8204670
Copyright ©2007 Chiphomer Technology Limited
2



CP2125 datasheet pdf
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