Datasheet LTC3878 (Analog Devices) - 8

ManufacturerAnalog Devices
DescriptionFast, Wide Operating Range No RSENSE Step-Down DC/DC Controller
Pages / Page26 / 8 — LTC3878. FuncTional. DiagraM. RON. VIN. FCB. CVIN. 7. ION. 4. 10. VIN. …
File Format / SizePDF / 413 Kb
Document LanguageEnglish

LTC3878. FuncTional. DiagraM. RON. VIN. FCB. CVIN. 7. ION. 4. 10. VIN. 0.8V. 0.8V. REF. –. +. 5.3V. OST. LDO. F. t. 0.7V. ON. =. (10pF). R. ION. BOOST. S. Q. 16. FCNT. RDSS. TG. CB. 20k. 15. MT. +. +

LTC3878 FuncTional DiagraM RON VIN FCB CVIN 7 ION 4 10 VIN 0.8V 0.8V REF – + 5.3V OST LDO F t 0.7V ON = (10pF) R ION BOOST S Q 16 FCNT RDSS TG CB 20k 15 MT + +

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LTC3878 FuncTional DiagraM RON VIN FCB CVIN 7 ION 4 10 VIN 0.8V 0.8V REF – + 5.3V OST LDO F t 0.7V ON = (10pF) R ION BOOST S Q 16 FCNT RDSS TG CB 20k 15 MT + + SW ICMP IREV 14 VOUT – – SWITCH C D OUT LOGIC INTVCC B RUN 11 1.4V BG CINTVCC OV VRNG 12 MB 3 PGND 13 sVRNG 0.7V 3.3µA 1 PGOOD 240k 2 NEG PG CLMP + – POS FCNT 0.6V + 0.86V CLMP + – 2.4V – RUN OV – + – + – 160µA 1.16V – V R2 FB 1.5V 8 CURRENT LIMIT R1 1.7mS + SOFT-START SGND EA s4 UV 6 1.2µA + – – 0.74V + –90mV 0.8V – 3878 FD ITH 5 CC1 RUN/SS 1 CSS RC 3878fa Document Outline Features Description Applications Typical Application Absolute Maximum Ratings Pin Configuration order information Electrical Characteristics Typical Performance Characteristics Pin Functions Functional Diagram Operation Applications Information Typical Applications Package Description Revision History Typical Application Related Parts