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SM8237 데이터시트(PDF) 4 Page - SamHop Microelectronics Corp. |
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SM8237 데이터시트(HTML) 4 Page - SamHop Microelectronics Corp. |
4 / 14 page SAMHOP Microelectronics Corp. 1.2MHz STEP-UP CONVERTER ELECTRICAL CHARACTERISTICS (TA =25oC, VIN =3V, VSHDN = 3V, unless otherwise noted) Characteristic Unit Min. Typ. Max. Condition Minimum operating voltage V 2.5 - - Maximum operating voltage V - - 10 Feedback voltage mV 86 95 104 ISW =100mA, Duty cycle=66% FB pin bias current nA 10 45 100 Supply current mA - 1.9 2.5 SHDN=0V μA - 0.1 1.0 Switching frequency MHz 0.8 1.2 1.6 Maximum duty cycle % 85 90 - Switch current limit mA - 320 - Switch VCESAT mV - 350 - ISW =250mA Switch leakage current μA - 0.01 5 SHDN voltage high V 1.5 - - VSW =5V SHDN voltage low V - - 0.4 SHDN pin bias current - 65 - μA Note : 1. Absolute maximum ratings are those values beyond which the life of the device may be impaired. 2. The SM8237 is guatanteed to meet specification from 0 oC to 70 oC. Specification over the -40oC to 85oC operating temperature range are assured by design, characterization and correlation with statistical process controls. Page 3 V.1.3 Aug 28,2007 |
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