sc1159swtr Semtech Corporation, sc1159swtr Datasheet
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sc1159swtr
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sc1159swtr Summary of contents
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POWER MANAGEMENT Description The SC1159 is a synchronous-buck switch-mode con- troller designed for use in single ended power supply ap- plications where efficiency is the primary concern. The controller is a hysteretic type, with a user selectable hys- teresis. The ...
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POWER MANAGEMENT Absolute Maximum Ratings Exceeding the specifications below may result in permanent damage to the device, or device malfunction. Operation outside of the parameters specified in the Electrical Characteristics section is not implied ...
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POWER MANAGEMENT DC Electrical Characteristics (Cont.) Unless specified: 0 < T < 125°C, VIN = 12V ...
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POWER MANAGEMENT DC Electrical Characteristics (Cont ...
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POWER MANAGEMENT DC Electrical Characteristics (Cont ...
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POWER MANAGEMENT AC Electrical Characteristics (Cont.) (Note ...
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POWER MANAGEMENT Test Circuit Timing Diagram Simplified Block Diagram 2002 Semtech Corp. 7 SC1159 www.semtech.com ...
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POWER MANAGEMENT Pin Configuration Top View (28-Pin SOIC) Pin Descriptions ...
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POWER MANAGEMENT Pin Descriptions (Cont ...
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POWER MANAGEMENT Block Diagram 2002 Semtech Corp. 10 SC1159 www.semtech.com ...
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POWER MANAGEMENT Output Voltage Table 0 = GND OPEN ...
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POWER MANAGEMENT Applications Information - Functional Description Reference/Voltage Identification The reference/voltage identification (VID) section con- sists of a temperature compensated bandgap reference and a 5-bit voltage selection network. The 5 VID pins are TTL compatable inputs to the VID selection ...
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POWER MANAGEMENT Applications Information - Functional Description (Cont.) current transient. The overshoot during a high to low load current transient is reduced by subtracting the volt- age that is on the DROOP pin from VREF. The voltage on the IO ...
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POWER MANAGEMENT Application Circuit 2002 Semtech Corp. 14 SC1159 www.semtech.com ...
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POWER MANAGEMENT Typical Characteristics 100% 90% 80% 70% 60% 50% 40% 30% 20% 10 Current, A 100% 90% 80% 70% 60% 50% 40% 30% 20% 10 Current, A ...
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POWER MANAGEMENT Typical Characteristics (Cont.) 100% 90% 80% 70% 60% 50% 40% 30% 20% 10 Current, A 100% 90% 80% 70% 60% 50% 40% 30% 20% 10 Current, ...
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POWER MANAGEMENT Evaluation Board Artwork Lay Bottom Layer Bottom Layer Bottom Layer Bottom Layer Bottom Layer Mid ...
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POWER MANAGEMENT Evaluation Board Artwork (Cont Overla erla erla erla erlay Bottom Overlay Bottom Overlay Bottom Overlay Bottom Overlay Bottom Overlay 2002 ...
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POWER MANAGEMENT Materials List ...
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... In order to prevent substrate glitching, a small (0.5A) Schottky diode should be placed in close proximity to the chip with the cathode connected to BOOTLO and anode connected to DRVGND. Semtech Corporation Power Management Products Division 200 Flynn Road, Camarillo, CA 93012 Phone: (805)498-2111 FAX (805)498-3804 20 SC1159 www ...