DESCRIPTION
The SP4405 is a high voltage output DC-AC inverter specifically designed to drive electroluminescent lamps to backlight liquid crystal displays, keypads, and backlit readouts used in battery operated portable equipment. The SP4405 will operate from a +2.2V to +4.5V battery source.

■ +2.2V to +4.5V Battery Operation
■ DC-to-AC Converter Produces 160VPP typical for EL Display Panels
■ Single Resistor Controlled Internal Oscillator
■ Low Current Standby Mode
■ Internal Feedback Loop Maintains a Constant Regulated EL Lamp Voltage Output

APPLICATIONS
■ Pagers
■ Cellular Phones
■ PDAs