GENERAL DESCRIPTION
PWM dimming control is supported to adjust the brightness of white LEDs. 105mV/200mV feedback voltage minimizes the power loss in the current setting resistor for better efficiency. The CP2125E 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 CP2125E is available in SOT23-5L package. SOT23-5L -40℃~85℃ FEATURES
y y y y y y y Inherently matched LED current High efficiency: 84%(typical) Drives up to 5 LEDs from a 3.0V power supply Built-in over-voltage protection Fast 1.1 MHz switching frequency Shutdown current: <1μA Low profile SOT23-5L package APPLICATIONS
y y y y y Mobile phones Digital still cameras MP3 players PDAs GPS receivers Pin Configurations CP2125E Top View SOT23-5L Copyright ©2008 Chiphomer Technology Limited 1 Product Brief CP2125E V0.9 DC/DC Series Step-Up White-LED Driver with Built-in Over-voltage Protection Typical Application Circuit(s) Contact with Chiphomer 4F, Building D, 1618 Yishan Road Shanghai, 201103, P.R.C.
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