LTC3786IMSE#PBF

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Analog Devices Inc./Maxim Integrated

DC/DC CONTROLLER, SYNCHRONOUS BOOST, 4.5V TO 38V, 1 OUTPUT, 96% DUTY CYCLE, 760KHZ, MSOP-EP-16

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LTC3786IMSE#PBF

Active

Analog Devices Inc./Maxim Integrated

DC/DC CONTROLLER, SYNCHRONOUS BOOST, 4.5V TO 38V, 1 OUTPUT, 96% DUTY CYCLE, 760KHZ, MSOP-EP-16

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Description Specifications Series Pricing CAD Documents

Description

General part information

LTC3786 Series

The LTC3786 is a high performance synchronous boost converter controller that drives all N-channel power MOSFETs. Synchronous rectification increases efficiency, reduces power losses and eases thermal requirements, allowing the LTC3786 to be used in high power boost applications.A 4.5V to 38V input supply range encompasses a wide range of system architectures and battery chemistries. When biased from the output of the boost converter or another auxiliary supply, the LTC3786 can operate from an input supply as low as 2.5V after start-up. The 55μA no-load quiescent current extends operating run time in battery-powered systems.The operating frequency can be set for a 50kHz to 900kHz range or synchronized to an external clock using the internal PLL. The LTC3786 also features a precision 1.2V reference and a power good output indicator. The SS pin ramps the output voltage during start-up. The PLLIN/MODE pin selects among Burst Mode®operation, pulse-skipping mode or continuous inductor current mode at light loads.APPLICATIONSIndustrial and Automotive Power SuppliesAutomotive Start-Stop SystemsMedical DevicesHigh Voltage Battery-Powered Systems

Technical Specifications

Parameters and characteristics for this part

Specification	LTC3786IMSE#PBF

Clock Sync	No
Control Features	Soft Start, Current Limit, Frequency Control, Enable, Power Good
Duty Cycle (Max)	96 %
Frequency - Switching (Max)	760 kHz
Frequency - Switching (Min)	105 kHz
Function	Step-Up, Step-Up/Step-Down
Mounting Type	Surface Mount
Number of Outputs	1
Operating Temperature (Max)	125 °C
Operating Temperature (Min)	-40 °C
Output Configuration	Positive
Output Phases	1
Output Type	Transistor Driver
Package Features	Exposed Pad
Package Length	0.118 in
Package Name	16-TFSOP, 16-MSOP-EP
Package Width	3 mm
Synchronous Rectifier	Yes
Topology	SEPIC, Flyback, Boost
Voltage - Supply (Vcc/Vdd) Maximum	38 V
Voltage - Supply (Vcc/Vdd) Minimum	4.5 V

LTC3786 Series

Part	Clock Sync	Operating Temperature (Max)	Operating Temperature (Min)	Frequency - Switching (Min)	Frequency - Switching (Max)	Duty Cycle (Max)	Output Phases	Output Configuration	Voltage - Supply (Vcc/Vdd) Maximum	Voltage - Supply (Vcc/Vdd) Minimum	Topology	Package Width	Package Name	Package Length	Control Features	Mounting Type	Package / Case	Synchronous Rectifier	Number of Outputs	Function	Output Type	Package Features
Analog Devices Inc./Maxim Integrated LTC3786EUD#PBF	No	125 °C	-40 °C	105 kHz	760 kHz	96 %	1	Positive	38 V	4.5 V	Boost Flyback SEPIC	3 mm	16-QFN	3 mm	Current Limit Enable Frequency Control Power Good Soft Start	Surface Mount	16-WFQFN Exposed Pad	Yes	1	Step-Up Step-Up/Step-Down	Transistor Driver
Analog Devices Inc./Maxim Integrated LTC3786IMSE#PBF	No	125 °C	-40 °C	105 kHz	760 kHz	96 %	1	Positive	38 V	4.5 V	Boost Flyback SEPIC	3 mm	16-MSOP-EP 16-TFSOP	0.118 in	Current Limit Enable Frequency Control Power Good Soft Start	Surface Mount		Yes	1	Step-Up Step-Up/Step-Down	Transistor Driver	Exposed Pad
Analog Devices Inc./Maxim Integrated LTC3786EMSE#PBF	No	125 °C	-40 °C	105 kHz	760 kHz	96 %	1	Positive	38 V	4.5 V	Boost Flyback SEPIC	3 mm	16-MSOP-EP 16-TFSOP	0.118 in	Current Limit Enable Frequency Control Power Good Soft Start	Surface Mount		Yes	1	Step-Up Step-Up/Step-Down	Transistor Driver	Exposed Pad
Analog Devices Inc./Maxim Integrated LTC3786IMSE#TRPBF	No	125 °C	-40 °C	105 kHz	760 kHz	96 %	1	Positive	38 V	4.5 V	Boost Flyback SEPIC	3 mm	16-MSOP-EP 16-TFSOP	0.118 in	Current Limit Enable Frequency Control Power Good Soft Start	Surface Mount		Yes	1	Step-Up Step-Up/Step-Down	Transistor Driver	Exposed Pad
Analog Devices Inc./Maxim Integrated LTC3786HUD#PBF	No	150 °C	-40 °C	105 kHz	760 kHz	96 %	1	Positive	38 V	4.5 V	Boost Flyback SEPIC	3 mm	16-QFN	3 mm	Current Limit Enable Frequency Control Power Good Soft Start	Surface Mount	16-WFQFN Exposed Pad	Yes	1	Step-Up Step-Up/Step-Down	Transistor Driver
Analog Devices Inc./Maxim Integrated LTC3786HMSE#PBF	No	150 °C	-40 °C	105 kHz	760 kHz	96 %	1	Positive	38 V	4.5 V	Boost Flyback SEPIC	3 mm	16-MSOP-EP 16-TFSOP	0.118 in	Current Limit Enable Frequency Control Power Good Soft Start	Surface Mount		Yes	1	Step-Up Step-Up/Step-Down	Transistor Driver	Exposed Pad
Analog Devices Inc./Maxim Integrated LTC3786EMSE#TRPBF	No	125 °C	-40 °C	105 kHz	760 kHz	96 %	1	Positive	38 V	4.5 V	Boost Flyback SEPIC	3 mm	16-MSOP-EP 16-TFSOP	0.118 in	Current Limit Enable Frequency Control Power Good Soft Start	Surface Mount		Yes	1	Step-Up Step-Up/Step-Down	Transistor Driver	Exposed Pad
Analog Devices Inc./Maxim Integrated LTC3786HMSE#TRPBF	No	150 °C	-40 °C	105 kHz	760 kHz	96 %	1	Positive	38 V	4.5 V	Boost Flyback SEPIC	3 mm	16-MSOP-EP 16-TFSOP	0.118 in	Current Limit Enable Frequency Control Power Good Soft Start	Surface Mount		Yes	1	Step-Up Step-Up/Step-Down	Transistor Driver	Exposed Pad
Analog Devices Inc./Maxim Integrated LTC3786IUD#TRPBF	No	125 °C	-40 °C	105 kHz	760 kHz	96 %	1	Positive	38 V	4.5 V	Boost Flyback SEPIC	3 mm	16-QFN	3 mm	Current Limit Enable Frequency Control Power Good Soft Start	Surface Mount	16-WFQFN Exposed Pad	Yes	1	Step-Up Step-Up/Step-Down	Transistor Driver
Analog Devices Inc./Maxim Integrated LTC3786HUD#TRPBF	No	150 °C	-40 °C	105 kHz	760 kHz	96 %	1	Positive	38 V	4.5 V	Boost Flyback SEPIC	3 mm	16-QFN	3 mm	Current Limit Enable Frequency Control Power Good Soft Start	Surface Mount	16-WFQFN Exposed Pad	Yes	1	Step-Up Step-Up/Step-Down	Transistor Driver

Pricing

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CAD

3D models and CAD resources for this part

Documents

Technical documentation and resources

Datasheet

Product Change Notice EN

LTC3786IMSE#PBF | Datasheet

R526 Reliability Data