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LT1117CM Datasheet(PDF) 11 Page - Linear Technology |
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LT1117CM Datasheet(HTML) 11 Page - Linear Technology |
11 / 12 page 11 LT1117/LT1117-2.85 LT1117-3.3/LT1117-5 Information furnished by Linear Technology Corporation is believed to be accurate and reliable. However, no responsibility is assumed for its use. Linear Technology Corporation makes no represen- tation that the interconnection of its circuits as described herein will not infringe on existing patent rights. The SOT-223 is manufactured with gull wing leadform for surface mount applications. The leads and heat sink are solder plated and allow easy soldering using nonactive or mildly active fluxes. The package is constructed with three leads exiting one side of the package and one heat sink exiting the other side, and the die attached to the heat sink internally. The recommended methods of soldering SOT-223 are: vapor phase reflow and infrared reflow with preheat of component to within 65 °Cofthesoldertemperature.Hand soldering and wave soldering are not recommended since these methods can easily damage the part with excessive thermal gradients across the package. Care must be exercised during surface mount to minimize large (> 30 °C per second) thermal shock to the package. LT1117 • TA15 Dimensions in inches (millimeters) unless otherwise noted. PACKAGE DESCRIPTIO M Package 3-Lead Plastic DD Pak (LTC DWG # 05-08-1460) M (DD3) 1098 0.050 (1.270) BSC 0.143 +0.012 – 0.020 () 3.632 +0.305 –0.508 0.090 – 0.110 (2.286 – 2.794) 0.013 – 0.023 (0.330 – 0.584) 0.095 – 0.115 (2.413 – 2.921) 0.004 +0.008 –0.004 () 0.102 +0.203 –0.102 0.050 ± 0.012 (1.270 ± 0.305) 0.059 (1.499) TYP 0.045 – 0.055 (1.143 – 1.397) 0.165 – 0.180 (4.191 – 4.572) 0.330 – 0.370 (8.382 – 9.398) 0.060 (1.524) TYP 0.390 – 0.415 (9.906 – 10.541) 15 ° TYP 0.300 (7.620) 0.075 (1.905) 0.183 (4.648) 0.060 (1.524) 0.060 (1.524) 0.256 (6.502) BOTTOM VIEW OF DD PAK HATCHED AREA IS SOLDER PLATED COPPER HEAT SINK SOLDERI G ETHODS 0.114 – 0.124 (2.90 – 3.15) 0.248 – 0.264 (6.30 – 6.71) 0.130 – 0.146 (3.30 – 3.71) 0.264 – 0.287 (6.70 – 7.30) 0.0905 (2.30) NOM 0.033 – 0.041 (0.84 – 1.04) 0.181 (4.60) NOM 0.024 – 0.033 (0.60 – 0.84) 0.071 (1.80) MAX 10 ° MAX 0.012 (0.31) MIN 0.0008 – 0.0040 (0.0203 – 0.1016) 10 ° – 16° 0.010 – 0.014 (0.25 – 0.36) 10 ° – 16° ST3 (SOT-233) 1298 ST Package 3-Lead Plastic SOT-223 (LTC DWG # 05-08-1630) |
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