ST CLP001V1 User Manual

Demonstration board for PMOLED display power supply

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 adjustable peak current limit

■ Low shutdown current

■ Small external inductor

STEVAL-CLP001V1

based on the STOD2540

Data Brief

Description

This demonstration board is based on the
STOD2540 and 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 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 current capability of the STOD2540 allows
the supply of a 1", 1.3" or 1.5" color PMOLED.
The maximum output current capability is 40 mA
with an output voltage up to 25 V, while the supply
voltage is from 3.0 V to 5.5 V.

STEVAL-CLP001V1

August 2008 Rev 1 1/4

For further information contact your local STMicroelectronics sales office.

www.st.com

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Circuit schematic STEVAL-CLP001V1

1 Circuit schematic

Figure 1. Schematic diagram

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