DESCRIPTION
The output capacitor can be as small as 0.22µF, saving space and cost versus alternative solutions. A low 0.3V feedback voltage minimizes power loss in the current setting resistor for better efficiency. The EUP2539 high-voltage output stage is perfect for driving mid-size and large panel displays containing up to ten white LEDs in series. LED dimming can be done by using a DC voltage, a logic signal, or a pulse width modulation(PWM) signal. The enable input pin allows the device to be placed in shutdown mode with “zero” quiescent current. The EUP2539 is available in low profile TSOT23-5 package. FEATURES
2.6V to 5.5V Input Range 38V Output Over Voltage Protection Internal Soft-Start PWM Dimming Control Internal High Power 40V MOSFET Switch Fast 1MHz Switching Frequency Small, Low-Profile Inductors and Capacitors TSOT23-5 Package RoHS Compliant and 100% Lead (Pb)-Free APPLICATIONS
GPS Navigation Systems Portable Media Players Handheld Devices, Digital Camera Portable Game Machines Typical Application Circuit DS2539 Ver1.3 Dec.
Eutech Microelectronics
