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FP6737 Datasheet(PDF) 1 Page - Fitipower Integrated Technology Inc. |
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FP6737 Datasheet(HTML) 1 Page - Fitipower Integrated Technology Inc. |
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1 / 12 page  1 FP6737/A-1.6-DEC-2011 FP6737/A 85T fitipower integrated technology lnc. Built-In OVP White LED Step-Up Converter in Tiny Package Pin Assignments S6 Package (SOT-23-6) 2 1 3 6 4 5 (Marking) SW GND FB SHDN OVP VIN S9 Package (TSOT-23-6) 2 1 3 6 4 5 (Marking) SW GND FB SHDN OVP VIN Figure 1. Pin Assignment of FP6737/A Ordering Information SOT-23-6 Marking Part Number Product Code FP6737S6P C4 FP6737AS6G aV= TSOT-23-6 Marking Part Number Product Code FP6737S9P C1 FP6737AS9G aW= Description The FP6737/A is a step-up DC/DC converter specifically designed to drive white LEDs with a constant current. The device can drive two to seven LEDs in series from a Li-Ion cell. Series connection of the LEDs provides identical LED current resulting in uniform brightness and eliminating the need for ballast resistors. The FP6737/A switches at 1.2MHz, allowing the use of tiny external components. The output capacitor can be as small as 0.22 μF for saving space and cost versus alternative solutions. A low 250mV/104mV feedback voltage minimizes power loss in the current setting resistor for better efficiency. The FP6737/A is available in low profile SOT-23-6 and TSOT-23-6 packages. Features ● Inherently Matched LED Current ● High Efficiency: 87% ● Drives up to Seven LEDs from a 3.2V Supply ● 33V Internal Switch ● Fast 1.2MHz Switching Frequency ● Use Tiny 1mm Tall Inductors ● Need only 0.22µF Output Capacitor ● Low Profile SOT-23-6 and TSOT-23-6 Packages ● Built-In Open Circuit Protection ● Over Voltage Protection ● RoHS Compliant Applications ● Cellular Phone ● Digital Camera ● MP3 Player ● GPS Receiver ● PDA, Handheld Computer TR: Tape / Reel Blank: Tube P: Green G: Green FP6737 □□□□ Package Type S6: SOT-23-6 S9: TSOT-23-6 FB Voltage Blank: 250mV A: 104mV |
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