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CAT37EKK-TE7 Datasheet(PDF) 3 Page - Catalyst Semiconductor |
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CAT37EKK-TE7 Datasheet(HTML) 3 Page - Catalyst Semiconductor |
3 / 13 page CAT37 3 Doc No. 5005, Rev. R ABSOLUTE MAXIMUM RATINGS VIN , FB, SHDN Voltage ......................................... 8 V SW Voltage .......................................................... 20 V Junction Temperature ....................................... 125 °C ELECTRICAL SPECIFICATIONS Over recommended operating conditions unless otherwise specified. TA = 25˚C, VIN = 3V and VSHDN = 3V. Storage Temperature .......................... -65 °C to 160°C ESD Rating - Human Body Model .................... 2000V Lead Soldering Temperature ............................ 300 °C Symbol Parameter Conditions Min Typ Max Units Input Voltage Range 2.5 7 V IQ Quiescent Current VFB = 0.2 V 0.5 0.7 mA ISD Shutdown Current VSHDN = 0 V 0.05 1 µA VFB FB Pin Voltage 4 LEDs at 15 mA 85 95 105 mV IFB FB Pin Leakage Current 1 2 µA Shutdown High Threshold 0.85 V Shutdown Low Threshold 0.25 V ISHDN Shutdown Pin Current 1 nA fSW Boost Converter Frequency 0.8 1.2 1.6 MHz DC Maximum Switch 90 95 % Duty Cycle ISWL Switch Current Limit 400 550 780 mA Switch Saturation Voltage ISW = 300 mA 150 200 mV Switch Leakage Current Switch Off, VSW = 5 V 0.01 5 µA Efficiency Figure 1 with 83 % specified components RECOMMENDED OPERATING CONDITIONS r e t e m a r a Pe g n a Rt i n U V N I 7 o t 5 . 2V e g n a R e r u t a r e p m e T t n e i b m A5 8 + o t 0 4 - ° C 1 L r o t c u d n Il a c i p y t % 0 2 ± 8 . 6H µ 1 C r o t i c a p a C t u p n Il a c i p y t % 0 2 ± 0 . 1F µ 2 C r o t i c a p a C t u p t u Ol a c i p y t % 0 2 ± 0 . 1F µ I D E L s e i r e s n i s D E L 4 o t 1 h t i w0 2 o t 0A m |
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