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SM8237 数据表(PDF) 3 Page - SamHop Microelectronics Corp. |
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SM8237 数据表(HTML) 3 Page - SamHop Microelectronics Corp. |
3 / 14 page SAMHOP Microelectronics Corp. 1.2MHz STEP-UP CONVERTER MAXIMUM RATINGS Input voltage (VIN) 10 V Characteristic Unit Rating SW voltage 36 V FB voltage 10 V SHDN voltage 10 V Operating temperature range -40 ~ 85 Maximum junction temperature 125 V Storage temperature range - 65 ~ 150 V Lead temperature (soldering, 10 sec) 300 V oC Page 2 PIN DESCRIPTIONS NO. Function Pin name 1 SW Switch Pin. Connect inductor / diode here. Minimize trace area at this pin to reduce EMI. 2 GND Ground Pin. Connect directly to local ground plane 3 FB Feedback Pin. Reference voltage is 95mV. Connect cathode of lowest LED and resistor here. Calculate resistor value according to the formula: RFB =95mV/ILED 4 SHDN Shutdown Pin. Connect to 1.5V or higher to enable device; 0.4V or less to disable device. 5 GND (SOT-26) Ground Pin. Connect to Pin 2 and local ground plane. 6 VIN (SOT-26) Input supply Pin. Must be locally bypassed. APPLICATIONS * Cellular phone * PDAs, handheld computer * Digital camera * MP3 player * GPS receiver * DC to DC Converter PIN ASSIGNMENTS (TOP VIEW) SOT-25 1 3 2 FB GND VIN SHDN 5 4 SW SOT-26 1 3 2 SW FB GND VIN SHDN GND 6 4 5 TSOT-25 (TSOT-23-5) 1 3 2 FB GND VIN SHDN 5 4 SW V.1.3 Aug 28,2007 |
类似零件编号 - SM8237 |
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类似说明 - SM8237 |
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