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ST1S40 数据表(PDF) 4 Page - STMicroelectronics |
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ST1S40 数据表(HTML) 4 Page - STMicroelectronics |
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4 / 29 page  Maximum ratings ST1S40 4/29 DocID17928 Rev 5 2 Maximum ratings 3 Thermal data Table 2. Absolute maximum ratings Symbol Parameter Value Unit VINSW Power input voltage -0.3 to 20 V VINA Input voltage -0.3 to 20 VEN Enable voltage -0.3 to VINA VSW Output switching voltage -1 to VIN -2 V to -1 V for 50 nsec VFB Feedback voltage -0.3 to 2.5 IFB FB current -1 to +1 mA PTOT Power dissipation at TA < 60 °C 2.25 (HSOP-8/DFN4x4); 1.6 SO8-BW W TOP Operating junction temperature range -40 to 150 °C Tstg Storage temperature range -55 to 150 °C Table 3. Thermal data Symbol Parameter Value Unit RthJA Maximum thermal resistance junction-ambient(1) 1. Package mounted on the demonstration board. VFQFPN 40 °C/W HSOP-8 40 SO8-BW 55 |
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