SC1218 Semtech, SC1218 Datasheet
SC1218
Related parts for SC1218
SC1218 Summary of contents
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... POWER MANAGEMENT Description The SC1218 is a high speed, robust, dual output driver to drive high-side and low-side N-MOSFETs in synchronous buck converters. Combined with Semtech’s multi-phase PWM controller SC2649, one can build high performance, versatile voltage regulators for next generation micropro- cessors. ...
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... SC1218 ...
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... > SC1218 www.DataSheet4U.com ...
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... VIN & EN VIN>UVLO VIN>UVLO & & Rising Edge Transition Rising Edge Transition EN=“HI” EN=“HI” 2005 Semtech Corp CO_LO CO_LO PDL_TG PDL_TG PDH_TG PDH_TG 1.4V 1. PDH_BG PDH_BG Falling Edge Transition Falling Edge Transition 4 SC1218 www.DataSheet4U.com 1.0V 1.0V www.semtech.com ...
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... SC1218 ...
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... UVLO UVLO UVLO UVLO CONTROL CONTROL CONTROL CONTROL & & & & OVERLAP OVERLAP OVERLAP OVERLAP CIRCUIT CIRCUIT CIRCUIT CIRCUIT 6 SC1218 www.DataSheet4U.com Fig Fall and BG Rise Times www.semtech.com BST BST BST BST DRN DRN DRN ...
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... LOAD CAPACITANCE (nF) V =12V IN C =3.3nF Load_TG C =3.3nF Load_BG T =25° 200 400 600 800 1000 1200 FREQUENCY (KHz) Fig. 7. Supply Current vs. Frequency. V =12V IN C =3.3nF Load_TG C =3.3nF Load_BG Freq.=200KHz TEMPERATURE (°C) SC1218 1400 1600 100 125 www.semtech.com ...
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... LOAD_BG T =25°C 3.5 A 3.0 2.5 2.0 1.5 1.0 0.5 0 (V) IN Fig. 9. Peak Sourcing Current vs. Supply Voltage. 2005 Semtech Corp. 9.0 8.0 BG 7.0 6.0 TG 5.0 4.0 3.0 2.0 1.0 0 Fig. 10. Peak Sinking Current vs. Supply Voltage. 8 www.DataSheet4U.com C =10nF LOAD_TG C =10nF LOAD_BG T =25° (V) IN SC1218 www.semtech.com ...
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... Bootstrap and Chip Decoupling Capacitors Bootstrap and Chip Decoupling Capacitors Bootstrap and Chip Decoupling Capacitors The top gate driver of the SC1218 is a DRN refered gate drive whose supply voltage is derived from a bootstrap circuit comprising a capacitor,C The capacitor value can be calculated based on the total ...
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... PCB layout. In the applica- tions with TO-220 package FETs suggested to use a clamping diode on the DRN pin to mitigate the impact of the excessive phase node negative spikes. For VIN pin of the SC1218 recommended to use a 1uF/16V ceramic capacitor for decoupling. Driv Driv ...
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... NOTES: 1. THIS LAND PATTERN IS FOR REFERENCE PURPOSES ONLY. CONSULT YOUR MANUFACTURING GROUP TO ENSURE YOUR COMPANY'S MANUFACTURING GUIDELINES ARE MET. 2. REFERENCE IPC-SM-782A, RLP NO. 300A. 11 SC1218 www.DataSheet4U.com DIMENSIONS INCHES MILLIMETERS MIN NOM MAX MIN NOM MAX - - .053 .069 1.35 1 ...
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... BSC 3.00 BSC .059 - .071 1.50 E2 .059 - .071 1.50 - .118 BSC E 3.00 BSC e .026 BSC 0.65 BSC L .012 .016 .020 0.30 0. .008 0. 0° 12° 0° aaa .003 0.08 bbb .008 0.20 DIMENSIONS MILLIMETERS (.122) (3.10) .089 2.25 .073 1.85 .073 1.85 .026 0.65 .014 0.35 .033 0.85 .156 3.95 SC1218 MAX 1.00 0.05 0.30 1.80 1.80 0.50 - 12° www.semtech.com ...