Specification	LTC3785IUF#TRPBF

Clock Sync	False
Control Features	Soft Start, Enable, Current Limit
Duty Cycle (Max) [Max]	99 %
Frequency - Switching [Max]	1 MHz
Frequency - Switching [Min]	100 kHz
Function	Step-Up/Step-Down
Mounting Type	Surface Mount
Number of Outputs	2
Operating Temperature [Max]	125 °C
Operating Temperature [Min]	-40 C
Output Configuration	Positive
Output Phases	1
Output Type	Transistor Driver
Package / Case	24-WFQFN Exposed Pad
Supplier Device Package	24-QFN (4x4)
Synchronous Rectifier	True
Topology	Buck-Boost
Voltage - Supply (Vcc/Vdd) [Max]	10 V
Voltage - Supply (Vcc/Vdd) [Min]	2.7 V

LTC3785 Series

10V, High Efficiency, Buck-Boost Controller with Power Good

Part	Voltage - Supply (Vcc/Vdd) [Max]	Voltage - Supply (Vcc/Vdd) [Min]	Operating Temperature [Max]	Operating Temperature [Min]	Number of Outputs	Output Configuration	Frequency - Switching [Min]	Frequency - Switching [Max]	Output Phases	Topology	Output Type	Supplier Device Package	Mounting Type	Control Features	Duty Cycle (Max) [Max]	Function	Package / Case
Analog Devices Inc./Maxim Integrated LTC3785EUF-1#TRPBF	10 V	2.7 V	85 C	-40 ¯C	2	Positive	100 kHz	1 MHz	1	Buck-Boost	Transistor Driver	24-QFN (4x4)	Surface Mount	Current Limit Enable Soft Start	99 %	Step-Up/Step-Down	24-WFQFN Exposed Pad
Analog Devices Inc./Maxim Integrated LTC3785IUF	10 V	2.7 V	125 °C	-40 C	2	Positive	100 kHz	1 MHz	1	Buck-Boost	Transistor Driver	24-QFN (4x4)	Surface Mount	Current Limit Enable Soft Start	99 %	Step-Up/Step-Down	24-WFQFN Exposed Pad
Analog Devices Inc./Maxim Integrated LTC3785EUF#PBF	10 V	2.7 V	85 C	-40 ¯C	2	Positive	100 kHz	1 MHz	1	Buck-Boost	Transistor Driver	24-QFN (4x4)	Surface Mount	Current Limit Enable Soft Start	99 %	Step-Up/Step-Down	24-WFQFN Exposed Pad
Analog Devices Inc./Maxim Integrated LTC3785EUF#TRPBF	10 V	2.7 V	85 C	-40 ¯C	2	Positive	100 kHz	1 MHz	1	Buck-Boost	Transistor Driver	24-QFN (4x4)	Surface Mount	Current Limit Enable Soft Start	99 %	Step-Up/Step-Down	24-WFQFN Exposed Pad
Analog Devices Inc./Maxim Integrated LTC3785EUF-1#PBF	10 V	2.7 V	85 C	-40 ¯C	2	Positive	100 kHz	1 MHz	1	Buck-Boost	Transistor Driver	24-QFN (4x4)	Surface Mount	Current Limit Enable Soft Start	99 %	Step-Up/Step-Down	24-WFQFN Exposed Pad
Analog Devices Inc./Maxim Integrated LTC3785IUF#TRPBF	10 V	2.7 V	125 °C	-40 C	2	Positive	100 kHz	1 MHz	1	Buck-Boost	Transistor Driver	24-QFN (4x4)	Surface Mount	Current Limit Enable Soft Start	99 %	Step-Up/Step-Down	24-WFQFN Exposed Pad
Analog Devices Inc./Maxim Integrated LTC3785IUF#PBF	10 V	2.7 V	125 °C	-40 C	2	Positive	100 kHz	1 MHz	1	Buck-Boost	Transistor Driver	24-QFN (4x4)	Surface Mount	Current Limit Enable Soft Start	99 %	Step-Up/Step-Down	24-WFQFN Exposed Pad
Analog Devices Inc./Maxim Integrated LTC3785EUF-1	10 V	2.7 V	85 C	-40 ¯C	2	Positive	100 kHz	1 MHz	1	Buck-Boost	Transistor Driver	24-QFN (4x4)	Surface Mount	Current Limit Enable Soft Start	99 %	Step-Up/Step-Down	24-WFQFN Exposed Pad

Pricing

Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly

Distributor	Package	Quantity	$	Updated

Digikey	N/A	0	$ 5.79	1m+

Description

General part information

LTC3785 Series

The LTC3785 is a high power synchronous buck-boost controller that drives all N-channel power MOSFETs from input voltages above, below and equal to the output voltage. With an input range of 2.7V to 10V, the LTC3785 is well suited for a wide variety of single or dual cell Li-Ion or multicell alkaline/NiMH applications.The operating frequency can be programmed from 100kHz to 1MHz. The soft-start time and current limit are also programmable. The soft-start capacitor doubles as the fault timer which can program the IC to latch off or recycle after a determined off time. Burst Mode operation is user controlled and can be enabled by driving the MODE pin high.Protection features include foldback current limit, shortcircuit and overvoltage protection.Power GoodLTC3785NoLTC3785-1YesApplicationsPalmtop ComputersHandheld InstrumentsWireless ModemsCellular Telephones

Documents

Technical documentation and resources

LTC3785IUF#TRPBF | Datasheet

Datasheet

R533 Reliability Data

Reliability Data