ETA3300
FEATURES
- Up to 24V Output Voltage
- Wide Operation Range: 2V to 6V
- Maximum 3MHz Operating Frequency
- PWM Dimming Control
- Shutdown Current <1u A
- Current Limit Cycle-by-Cycle
- Low Current Sense Threshold: 200m V
- 24V Over Output Voltage Protection
- pact SOT23-6 Package
APPLICATIONS
- pact Back Light Module
- Power Source for LED
- Constant Current Source
ORDERING INFORMATION
PART
PACKAGE PIN
ETA3300S2G SOT23-6
TOP MARK LEYW
Date Code Product Number
DESCRIPTION
The ETA3300 PFM step-up Converter drives white LEDs with a constant current to provide backlight in cell phones, PDAs, and other hand-held devices. It features allowing series connection of the white LEDs so that the LED currents are identical for uniform brightness. An enable input can be pulsed repeatedly to adjust LEDs brightness. The fast 500KHz to 3MHz operation frequency allows for smaller capacitor and inductor. Fault condition protection uses cycle-by cycle current limiting to sense maximum inductor current...
