Datasheet LTC3789 (Analog Devices) - 26
| Fabricante | Analog Devices |
| Descripción | High Efficiency, Synchronous, 4-Switch Buck-Boost Controller |
| Páginas / Página | 30 / 26 — applicaTions inForMaTion. Figure 13. LTC3789 12V/5A, Buck-Boost … |
| Formato / tamaño de archivo | PDF / 543 Kb |
| Idioma del documento | Inglés |
applicaTions inForMaTion. Figure 13. LTC3789 12V/5A, Buck-Boost Regulator. Figure 14. Sense Lines Layout
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LTC3789
applicaTions inForMaTion
R1 R2 VPULLUP 20k 280k 10Ω V V IN OUT 5V TO 38V C MAX A C 0.22µF SS CIN 6.8nF 1 27 V PGOOD SW1 47µF FB 2 26 QA SS TG1 C SiR422DP C2 25 1000pF BOOST1 3 24 DA SENSE+ PGND L C DFLS160 C1 4 23 R Q 6.8µH C B 3300pF SENSE– BG1 68k SiR422DP 5 22 CF 1µF ITH V LTC3789 IN D1 6 B240A SGND C 21 VCC 4.7µF 7 INTV MODE/PLLIN INTV CC CC 121k 10mΩ 8 20 FREQ EXTVCC VOUT 9 DB ON/OFF RUN DFLS160 19 V 10 IN Q V BG2 C INSNS SiR422DP 18 V 11 OUT VOUTSNS BOOST2 12 I C LIM B D2 13 0.22µF B240A C + 17 Q OUT D IOSENSE TG2 2.2µF SiR422DP 14 2.2µF I – 16 OSENSE SW2 10mΩ VOUT TRIM 15 12V, 5A + 330µF 100Ω 100Ω 3789 F13 1k 1k
Figure 13. LTC3789 12V/5A, Buck-Boost Regulator
PGND R SENSE 28 27 26 25 24 23 22 21 20 19 18 17 16 15 1 2 3 4 5 6 7 8 9 10 11 12 13 14 C R R SGND 3789 F14
Figure 14. Sense Lines Layout
3789fc 26 For more information www.linear.com/LTC3789 Document Outline Features Description Applications Typical Application Absolute Maximum Ratings Pin Configuration order information Electrical Characteristics Typical Performance Characteristics Pin Functions Block Diagram Operation Applications Information Package Description Typical Application Related Parts
applicaTions inForMaTion
R1 R2 VPULLUP 20k 280k 10Ω V V IN OUT 5V TO 38V C MAX A C 0.22µF SS CIN 6.8nF 1 27 V PGOOD SW1 47µF FB 2 26 QA SS TG1 C SiR422DP C2 25 1000pF BOOST1 3 24 DA SENSE+ PGND L C DFLS160 C1 4 23 R Q 6.8µH C B 3300pF SENSE– BG1 68k SiR422DP 5 22 CF 1µF ITH V LTC3789 IN D1 6 B240A SGND C 21 VCC 4.7µF 7 INTV MODE/PLLIN INTV CC CC 121k 10mΩ 8 20 FREQ EXTVCC VOUT 9 DB ON/OFF RUN DFLS160 19 V 10 IN Q V BG2 C INSNS SiR422DP 18 V 11 OUT VOUTSNS BOOST2 12 I C LIM B D2 13 0.22µF B240A C + 17 Q OUT D IOSENSE TG2 2.2µF SiR422DP 14 2.2µF I – 16 OSENSE SW2 10mΩ VOUT TRIM 15 12V, 5A + 330µF 100Ω 100Ω 3789 F13 1k 1k
Figure 13. LTC3789 12V/5A, Buck-Boost Regulator
PGND R SENSE 28 27 26 25 24 23 22 21 20 19 18 17 16 15 1 2 3 4 5 6 7 8 9 10 11 12 13 14 C R R SGND 3789 F14
Figure 14. Sense Lines Layout
3789fc 26 For more information www.linear.com/LTC3789 Document Outline Features Description Applications Typical Application Absolute Maximum Ratings Pin Configuration order information Electrical Characteristics Typical Performance Characteristics Pin Functions Block Diagram Operation Applications Information Package Description Typical Application Related Parts