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ADP1871 Datasheet(PDF) 39 Page - Analog Devices |
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ADP1871 Datasheet(HTML) 39 Page - Analog Devices |
39 / 44 page ![]() ADP1870/ADP1871 Rev. 0 | Page 39 of 44 TYPICAL APPLICATIONS CIRCUITS 15 A, 300 kHz HIGH CURRENT APPLICATION CIRCUIT MURATA: (HIGH VOLTAGE INPUT CAPACITORS) 22µF, 25V, X7R, 1210 GRM32ER71E226KE15L PANASONIC: (OUTPUT CAPACITORS) 270µF, SP-SERIES, 4V, 7m Ω EEFUE0G271LR INFINEON MOSFETs: BSC042N03MS G (LOWER SIDE) BSC080N03MS G (UPPER SIDE) WÜRTH INDUCTORS: 1µH, 3.3m Ω, 20A 7443552100 R5 100k Ω Q3 Q4 Q1 Q2 HIGH VOLTAGE INPUT VIN = 12V C12 100nF VOUT = 1.8V, 15A C3 22µF C4 22µF C5 22µF C6 22µF C7 22µF C8 N/A C9 N/A C23 270µF + C22 270µF + C21 270µF + C20 270µF + C27 N/A C14 TO C19 N/A + C26 N/A + C25 N/A + C24 N/A + 1.0µH R6 2 Ω C13 1.5nF R1 30k Ω R2 15k Ω R4 0 Ω VOUT 1 VIN 10 BST 2 COMP/EN 9 SW 3 FB 8 DRVH 4 GND 7 PGND 5 VREG 6 DRVL ADP1870/ ADP1871 CC 571pF CF 57pF RC 47k Ω C1 1µF C28 10µF C2 0.1µF JP3 Figure 91. Application Circuit for 12 V Input, 1.8 V Output, 15 A, 300 kHz (Q2/Q4 No Connect) 5.5 V INPUT, 600 kHz APPLICATION CIRCUIT MURATA: (HIGH VOLTAGE INPUT CAPACITORS) 22µF, 25V, X7R, 1210 GRM32ER71E226KE15L PANASONIC: (OUTPUT CAPACITORS) 180µF, SP-SERIES, 4V, 10m Ω EEFUE0G181XR INFINEON MOSFETs: BSC042N03MS G (LOWER SIDE) BSC080N03MS G (UPPER SIDE) WÜRTH INDUCTORS: 0.47µH, 0.8m Ω, 50A 744355147 R5 100k Ω Q3 Q4 Q1 Q2 HIGH VOLTAGE INPUT VIN = 5.5V C12 100nF VOUT = 2.5V, 15A C3 22µF C4 22µF C5 22µF C6 22µF C7 22µF C8 N/A C9 N/A C23 N/A + C22 180µF + C21 180µF + C20 180µF + C27 N/A C14 TO C19 N/A + C26 N/A + C25 N/A + C24 N/A + 0.47µH R6 2 Ω C13 1.5nF R1 30k Ω R2 15k Ω R4 0 Ω VOUT 1 VIN 10 BST 2 COMP/EN 9 SW 3 FB 8 DRVH 4 GND 7 PGND 5 VREG 6 DRVL ADP1870/ ADP1871 CC 571pF CF 57pF RC 47k Ω C1 1µF C28 10µF C2 0.1µF JP3 Figure 92. Application Circuit for 5.5 V Input, 2.5 V Output, 15 A, 600 kHz (Q2/Q4 No Connect) |
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