CAT37

CAT37 CMOS White LED Driver Boost Converter FEATURES s Low quiescent ground current (0.5mA typical) s Power efficiency over 80% s Compatible pinout with LT1937 s Adjustable output current (up to 40mA) s High frequency 1.2MHz operation s Input voltage operation down to 2.5V s Low resistance (0.5Ω) power switch s Drives up to 4 White LEDs in series s Shutdown ...