LTC3785IUF

Obsolete

Analog Devices

IC POWER MANAGEMENT

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LTC3785IUF

Obsolete

Analog Devices

IC POWER MANAGEMENT

Deep-Dive with AI

DocumentsDatasheet

Specifications Pricing Series Description Documents

Technical Specifications

Parameters and characteristics for this part

Specification	LTC3785IUF

Clock Sync	False
Control Features	Current Limit, Soft Start, Enable
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

LTC3785-1 Series

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

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

Pricing

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

Distributor	Package	Quantity	$

Description

General part information

LTC3785-1 Series

The LTC3785-1 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 LTC3785-1 is well suited for a wide variety of single or dual cell Li-Ion or multi-cell 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. The LTC3785-1 includes a Power Good output that indicates when the output voltage is within 7.5% of its designed setpoint.Protection features include foldback current limit, short-circuit and overvoltage protection.Power GoodLTC3785NoLTC3785-1YesApplicationsPalmtop ComputersHandheld InstrumentsWireless ModemsCellular Telephones

Documents

Technical documentation and resources