EC4513 Datasheet, PDF (1/7 Pages) List of Unclassifed Manufacturers – White LED Step-Up Regulator

White LED Step-Up Regulator
EC4513
Preliminary
The EC4513 is a constant current boost regulator specially designed for driving white LEDs. It can drive 4
LEDs in series and achieves efficiency up to 90%. The brightness of the LEDs is adjusted through a voltage
level on the CNTL pin. When the level falls below 0.2V, the chip goes into shut-down mode and consumes
less than 1µA of supply current for VIN less than 5.5V. The EC4513 is available in the 8-pin MSOP packages.
Features
• 2.6V to 13.2V input voltage
• 18V maximum output voltage
•
• 1MHz switching frequency
• Up to 90% efficiency
• 1µA maximum shut-down current
• Dimming control
• 8-pin MSOP packages
Applications
• PDAs
• Cellular phones
• Digital cameras
• White LED backlighting
Pinouts
MSOP 8-PIN
TOP VIEW
Application Circuit
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