data brief for further information contact your local stmicroelectronics sales office. june 2008 rev 1 1/4 4 STEVAL-CLP001V1 demonstration board for pmoled display power supply based on the stod2540 features pfm mode control supply voltage from 3.0 v to 5.5 v high efficiency over wide range of load (1 ma to 40 ma) integrated load disconnect switch overvoltage protection with automatic restart soft start with adjustab le peak current limit low shutdown current small external inductor description this demonstration board based on stod2540 is dedicated to passive matrix oled (pmoled) displays for portable handsets and provides the pre-charge and biasing voltage of the column matrix driver. the current capability of stod2540 allows feeding a 1", 1.3" or 1.5" color pmoled. stod2540 is a boost converter that operates from 3.0 v to 5.5 v and can provide an output voltage as high as 25 v. the output cu rrent capability is maximum 40 ma up to 25 v output voltage while the supply voltage from 3.0 v to 5.5 v STEVAL-CLP001V1 www.st.com
circuit schematic STEVAL-CLP001V1 2/4 1 circuit schematic figure 1. schematic diagram
STEVAL-CLP001V1 revision history 3/4 2 revision history table 1. document revision history date revision changes 04-jun-2008 1 initial release.
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