LTC3118 Series

18V, 2A Buck-Boost DC/DC Converter with Low-Loss Dual Input PowerPath

Manufacturer: Analog Devices Inc./Maxim Integrated

Catalog

18V, 2A Buck-Boost DC/DC Converter with Low-Loss Dual Input PowerPath

Part	Mounting Type	Voltage - Output (Max) [Max]	Voltage - Input (Max) [Max]	Package / Case	Function	Frequency - Switching	Voltage - Input (Min) [Min]	Supplier Device Package	Number of Outputs	Operating Temperature [Min]	Operating Temperature [Max]	Voltage - Output (Min/Fixed)	Topology	Current - Output	Output Configuration	Output Type
Analog Devices Inc./Maxim Integrated LTC3118HUFD#PBF	Surface Mount	18 V	18 V	24-WFQFN Exposed Pad	Step-Up/Step-Down	1.2 MHz	2.2 V	24-QFN (4x5)	1	-40 °C	150 °C	2 V	Buck-Boost	2 A	Positive	Adjustable
Analog Devices Inc./Maxim Integrated LTC3118EFE#PBF	Surface Mount	18 V	18 V	28-TSSOP (0.173" 4.40mm Width) Exposed Pad	Step-Up/Step-Down	1.2 MHz	2.2 V	28-TSSOP-EP	1	-40 C	125 °C	2 V	Buck-Boost	2 A	Positive	Adjustable
Analog Devices Inc./Maxim Integrated LTC3118MPFE#PBF	Surface Mount	18 V	18 V	28-TSSOP (0.173" 4.40mm Width) Exposed Pad	Step-Up/Step-Down	1.2 MHz	2.2 V	28-TSSOP-EP	1	-55 °C	150 °C	2 V	Buck-Boost	2 A	Positive	Adjustable
Analog Devices Inc./Maxim Integrated LTC3118MPUFD#PBF	Surface Mount	18 V	18 V	24-WFQFN Exposed Pad	Step-Up/Step-Down	1.2 MHz	2.2 V	24-QFN (4x5)	1	-55 °C	150 °C	2 V	Buck-Boost	2 A	Positive	Adjustable
Analog Devices Inc./Maxim Integrated LTC3118IFE#PBF	Surface Mount	18 V	18 V	28-TSSOP (0.173" 4.40mm Width) Exposed Pad	Step-Up/Step-Down	1.2 MHz	2.2 V	28-TSSOP-EP	1	-40 C	125 °C	2 V	Buck-Boost	2 A	Positive	Adjustable
Analog Devices Inc./Maxim Integrated LTC3118EFE	Surface Mount	18 V	18 V	24-WFQFN Exposed Pad	Step-Up/Step-Down	1.2 MHz	2.2 V	24-QFN (4x5)	1	-40 C	125 °C	2 V	Buck-Boost	2 A	Positive	Adjustable
Analog Devices Inc./Maxim Integrated LTC3118MPFE#TRPBF	Surface Mount	18 V	18 V	28-TSSOP (0.173" 4.40mm Width) Exposed Pad	Step-Up/Step-Down	1.2 MHz	2.2 V	28-TSSOP-EP	1	-55 °C	150 °C	2 V	Buck-Boost	2 A	Positive	Adjustable
Analog Devices Inc./Maxim Integrated LTC3118EUFD#PBF	Surface Mount	18 V	18 V	24-WFQFN Exposed Pad	Step-Up/Step-Down	1.2 MHz	2.2 V	24-QFN (4x5)	1	-40 C	125 °C	2 V	Buck-Boost	2 A	Positive	Adjustable
Analog Devices Inc./Maxim Integrated LTC3118EFE#TRPBF	Surface Mount	18 V	18 V	28-TSSOP (0.173" 4.40mm Width) Exposed Pad	Step-Up/Step-Down	1.2 MHz	2.2 V	28-TSSOP-EP	1	-40 C	125 °C	2 V	Buck-Boost	2 A	Positive	Adjustable
Analog Devices Inc./Maxim Integrated LTC3118MPUFD#TRPBF	Surface Mount	18 V	18 V	24-WFQFN Exposed Pad	Step-Up/Step-Down	1.2 MHz	2.2 V	24-QFN (4x5)	1	-55 °C	150 °C	2 V	Buck-Boost	2 A	Positive	Adjustable

Description

The LTC3118 is a dual-input, wide voltage range synchronous buck-boost DC/DC converter with an intelligent, integrated, low loss PowerPath control. The unique power switch architecture provides efficient operation from either input source to a programmable output voltage above, below or equal to the input. Voltage capability of up to 18V provides flexibility and voltage margin for a wide variety of applications and power sources.The LTC3118 uses a low noise, current mode architecture with a fixed 1.2MHz PWM mode frequency that minimizes the solution footprint. For high efficiency at light loads, automatic Burst Mode operation can be selected consuming only 50μA of quiescent current in sleep.System level features include ideal diode or VINpriority modes, VINand VOUTpower good indicators, accurate RUN comparators to program independent UVLO thresholds, and output disconnect in shutdown. Other features include 2μA shutdown current, short-circuit protection, soft-start, current limit and thermal overload protection.The LTC3118 is offered in thermally enhanced 24-lead 4mm × 5mm QFN and 28-lead TSSOP packages.ApplicationsSystems with Multiple Input SourcesBack Up Power SystemsWall Adapter or Li-Ion(s) Input to 5VOUTBattery or Super Capacitor Input for Reserve PowerReplace Diode-OR Designs with Higher Efficiency, Flexibility and Performance