Datasheet LTC3789 (Analog Devices) - 30

LTC3789
Typical applicaTion 24V/5A Buck-Boost Regulator
R5 VIN 10Ω, 0805 J3 V V IN OS+ 9V TO VOUT1 VOUT INTV C6 + C + C J1 CC IN1 IN2 R C15 35V V FB1 3.3µF 270µF 270µF OUT 232k 1µF 50V 50V 50V C1 24V AT R7 R2 + C 50V 1210 OPT 2.2µF, OUT2 5A 100k 330µF R8 R 0.010Ω FB2 1210 10Ω 28 Q3 50V 34V 8.06k 2% 1 27 X5R V + PGOOD SW1 Q2 SiR422DP V OS FB 2 26 SiR422DP D6 C3 SS TG1 R11, 0Ω C4 B240A R9, 1.24k 2.2µF 0.01µF 3 25 SENSE1+ BOOST1 0.22µF, 16V 50V R10, 1.24k C11, OPT L1 4 24 X5R PGND1 D4 SENSE1– Q4 5.5µH CC1, 1000pF 5 23 DFLS160 SiR422DP ITH BG1 C RC, 15k C2, 0.01µF 22 D5 LTC3789EGN VIN 6 C18 B240A SGND INTVCC 10µF, 1206 7 21 R21 D8 MODE/PLLIN INTVCC 121k, 1% R30 BZX84- 8 20 FREQ EXTV 68.1k C5V1 CC V + 9 IN RUN D7 D2 C7, 0.1µF 19 DFLS160 BAS16 R31 10 3 1 Q5 VINSNS BG2 12.1k SiR422DP C8, 0.1µF 11 18 V R1, 5.6Ω OUTSNS BOOST2 12 ILIM C22 R25 R13, 100Ω 13 0.22µF, 16V 0Ω I + 17 OSENSE TG2 C10, 2.2µF 14 R14 I – 16 OSENSE SW2 100Ω V 15 OUT TRIM VIN R18 8mΩ 2% R4, 100Ω R3, 100Ω 3789 TA02 L1: WÜRTH 7443630550
relaTeD parTs PART NUMBER DESCRIPTION COMMENTS
LTC3780 High Efficiency (Up to 98%) Synchronous, 4-Switch Buck-Boost 4V ≤ VIN ≤ 36V, 0.8V ≤ VOUT ≤ 30V, 5mm × 5mm QFN-32 and DC/DC Controller SSOP-24 Packages LTC3785 High Efficiency (Up to 98%) Synchronous, 4-Switch Buck-Boost 2.7V ≤ VIN ≤ 10V, 2.7V ≤ VOUT ≤ 10V, 4mm × 4mm DC/DC Controller QFN-24 Package LTM4605 High Efficiency Buck-Boost DC/DC µModule™ Regulator 4.5V ≤ VIN ≤ 20V, 0.8V ≤ VOUT ≤ 16V, 15mm × 15mm × 2.8mm Complete Power Supply LGA Package LTM4607 High Efficiency Buck-Boost DC/DC µModule Regulator 4.5V ≤ VIN ≤ 36V, 0.8V ≤ VOUT ≤ 25V, 15mm × 15mm × 2.8mm Complete Power Supply LGA Package LTM4609 High Efficiency Buck-Boost DC/DC µModule Regulator 4.5V ≤ VIN ≤ 36V, 0.8V ≤ VOUT ≤ 34V, 15mm × 15mm × 2.8mm Complete Power Supply LGA Package LTC3112 2.5A Synchronous Buck-Boost DC/DC Converter 2.7V ≤ VIN ≤ 15V, 2.5V ≤ VOUT ≤ 14V, 4mm × 5mm DFN-16 and TSSOP-20 Packages LTC3533 2A Synchronous Buck-Boost Monolithic DC/DC Converter 1.8V ≤ VIN ≤ 5.5V, 1.8V ≤ VOUT ≤ 5.25V, IQ = 40µA, ISD < 1µA, 3mm × 4mm DFN-14 Package 3789fc 30 LT 1114 REV B • PRINTED IN USA Linear Technology Corporation 1630 McCarthy Blvd., Milpitas, CA 95Fo 0 r3 m 5- o7re 4 in 17formation www.linear.com/LTC3789 (408) 432-1900 ● FAX: (408) 434-0507 ● www.linear.com/LTC3789 LINEAR TECHNOLOGY CORPORATION 2010 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