LTC3769HFE#TRPBF

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Analog Devices

60V LOW IQSYNCHRONOUS BOOST CONTROLLER WITH PASSTHRU

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LTC3769HFE#TRPBF

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Analog Devices

60V LOW IQSYNCHRONOUS BOOST CONTROLLER WITH PASSTHRU

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Technical Specifications

Parameters and characteristics for this part

Specification	LTC3769HFE#TRPBF

Clock Sync	False
Control Features	Current Limit, Power Good, Soft Start, Frequency Control, Enable
Duty Cycle (Max) [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]	150 °C
Operating Temperature [Min]	-40 °C
Output Configuration	Positive
Output Phases	1
Output Type	Transistor Driver
Package / Case [custom]	4.4 mm, 0.173 in
Package / Case [custom]	Exposed Pad
Package / Case [custom]	20-TSSOP
Supplier Device Package	20-TSSOP-EP
Synchronous Rectifier	True
Topology	SEPIC, Boost
Voltage - Supply (Vcc/Vdd) [Max]	60 V
Voltage - Supply (Vcc/Vdd) [Min]	4.5 V

LTC3769 Series

60V Low IQSynchronous Boost Controller with PassThru

Part	Voltage - Supply (Vcc/Vdd) [Min]	Voltage - Supply (Vcc/Vdd) [Max]	Output Phases	Function	Topology	Mounting Type	Supplier Device Package	Number of Outputs	Output Type	Operating Temperature [Min]	Operating Temperature [Max]	Package / Case [custom]	Package / Case [custom]	Package / Case [custom]	Duty Cycle (Max) [Max]	Control Features	Frequency - Switching [Max]	Frequency - Switching [Min]	Output Configuration	Package / Case
Analog Devices LTC3769EFE#TRPBF	4.5 V	60 V	1	Step-Up Step-Up/Step-Down	Boost SEPIC	Surface Mount	20-TSSOP-EP	1	Transistor Driver	-40 °C	125 ¯C	0.173 in 4.4 mm	Exposed Pad	20-TSSOP	96 %	Current Limit Enable Frequency Control Power Good Soft Start	760 kHz	105 kHz	Positive
Analog Devices LTC3769HUF#TRPBF	4.5 V	60 V	1	Step-Up Step-Up/Step-Down	Boost SEPIC	Surface Mount	24-QFN (4x4)	1	Transistor Driver	-40 °C	150 °C				96 %	Current Limit Enable Frequency Control Power Good Soft Start	760 kHz	105 kHz	Positive	24-WFQFN Exposed Pad
Analog Devices LTC3769IFE#TRPBF	4.5 V	60 V	1	Step-Up Step-Up/Step-Down	Boost SEPIC	Surface Mount	20-TSSOP-EP	1	Transistor Driver	-40 °C	125 ¯C	0.173 in 4.4 mm	Exposed Pad	20-TSSOP	96 %	Current Limit Enable Frequency Control Power Good Soft Start	760 kHz	105 kHz	Positive
Analog Devices LTC3769HFE#PBF	4.5 V	60 V	1	Step-Up Step-Up/Step-Down	Boost SEPIC	Surface Mount	20-TSSOP-EP	1	Transistor Driver	-40 °C	150 °C	0.173 in 4.4 mm	Exposed Pad	20-TSSOP	96 %	Current Limit Enable Frequency Control Power Good Soft Start	760 kHz	105 kHz	Positive
Analog Devices LTC3769EUF#TRPBF	4.5 V	60 V	1	Step-Up Step-Up/Step-Down	Boost SEPIC	Surface Mount	24-QFN (4x4)	1	Transistor Driver	-40 °C	125 ¯C				96 %	Current Limit Enable Frequency Control Power Good Soft Start	760 kHz	105 kHz	Positive	24-WFQFN Exposed Pad
Analog Devices LTC3769MPUF#PBF	4.5 V	60 V	1	Step-Up Step-Up/Step-Down	Boost SEPIC	Surface Mount	24-QFN (4x4)	1	Transistor Driver	-55 °C	150 °C				96 %	Current Limit Enable Frequency Control Power Good Soft Start	760 kHz	105 kHz	Positive	24-WFQFN Exposed Pad
Analog Devices LTC3769HFE#TRPBF	4.5 V	60 V	1	Step-Up Step-Up/Step-Down	Boost SEPIC	Surface Mount	20-TSSOP-EP	1	Transistor Driver	-40 °C	150 °C	0.173 in 4.4 mm	Exposed Pad	20-TSSOP	96 %	Current Limit Enable Frequency Control Power Good Soft Start	760 kHz	105 kHz	Positive
Analog Devices LTC3769IFE#PBF	4.5 V	60 V	1	Step-Up Step-Up/Step-Down	Boost SEPIC	Surface Mount	20-TSSOP-EP	1	Transistor Driver	-40 °C	125 ¯C	0.173 in 4.4 mm	Exposed Pad	20-TSSOP	96 %	Current Limit Enable Frequency Control Power Good Soft Start	760 kHz	105 kHz	Positive

Pricing

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

Distributor	Package	Quantity	$

Digikey	Tape & Reel (TR)	2500	$ 5.55

Description

General part information

LTC3769 Series

LTC3769 is a high performance single output synchronous boost converter controller that drives an all N-channel power MOSFET stage. Synchronous rectification increases efficiency, reduces power losses and eases thermal requirements, simplifying high power boost applications. The 28μA no-load quiescent current extends operating run time in battery-powered systems.A 4.5V to 60V 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 LTC3769 can operate from an input supply as low as 2.3V after start-up. The operating frequency can be set within a 50kHz to 900kHz range or synchronized to an external clock using the internal PLL.The SS pin ramps the output voltage during start-up. The PLLIN/MODE pin selects Burst Mode®operation, pulse-skipping mode or forced continuous mode at light loads.APPLICATIONSIndustrialAutomotiveMedicalMilitary

LTC3769HFE#TRPBF

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LTC3769HFE#TRPBF

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Technical Specifications

LTC3769 Series

Pricing

Description

LTC3769 Series

Documents

Tape and Reel Packaging

Datasheet

R526 Reliability Data

DC2173A - Demo Manual (Rev.B)

LTC3769: 60V Low IQSynchronous Boost Controller Data Sheet (Rev.B)

LTC3769 Series