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AP1501A-33T5A Datasheet(PDF) 9 Page - Anachip Corp |
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AP1501A-33T5A Datasheet(HTML) 9 Page - Anachip Corp |
9 / 12 page AP1501A 150Khz, 5A PWM Buck DC/DC Converter Anachip Corp. www.anachip.com.tw Rev.1.2 Aug 23, 2005 9/12 Function Description (Continued) Package thermal resistance and junction temperature rise numbers are all approximate, and there are many factors that will affect these numbers. Some of these factors include board size, shape, thickness, position, location, and even board temperature. Other factors are, trace width, total printed circuit copper area, copper thickness, single or double-sided, multilayer board and the amount of solder on the board. The effectiveness of the PC board to dissipate heat also depends on the size, quantity and spacing of other components on the board, as well as whether the surrounding air is still or moving. Furthermore, some of these components such as the catch diode will add heat to the PC board and the heat can vary as the input voltage changes. For the inductor, depending on the physical size, type of core material and the DC resistance, it could either act as a heat sink taking heat away from the board, or it could add heat to the board. Marking Information (1) TO263-5L 1501AXX Output Type: 1501: ADJ 1501A33: 3.3V 1501A50: 5.0V 1501A12: 12V Logo ID code Year: ( Top view ) "02" = 2002 "01" = 2001 YY WW X X Xth week: 01~52 Blank: normal L: Lead Free Package (2) TO220-5L 1501AXX Output Type: 1501: ADJ 1501A33: 3.3V 1501A50: 5.0V 1501A12: 12V Logo ID code Year: ( Top view ) "02" = 2002 "01" = 2001 YY WW X X Xth week: 01~52 Blank: normal L: Lead Free Package |
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