Specification	LTC3854IMSE#TRPBF

Clock Sync	False
Control Features	Soft Start, Enable
Duty Cycle (Max) [Max]	98 %
Frequency - Switching	400 kHz
Function	Step-Down
Mounting Type	Surface Mount
Number of Outputs	1
Operating Temperature [Max]	85 C
Operating Temperature [Min]	-40 ¯C
Output Configuration	Positive
Output Phases	1
Output Type	Transistor Driver
Package / Case	12-TSSOP, Exposed Pad
Package / Case [x]	0.118 in
Package / Case [y]	3 mm
Supplier Device Package	12-MSOP-EP
Synchronous Rectifier	True
Topology	Buck
Voltage - Supply (Vcc/Vdd) [Max]	38 V
Voltage - Supply (Vcc/Vdd) [Min]	4.5 V

LTC3854 Series

Small Footprint, Wide VINRange Synchronous Step-Down DC/DC Controller

Part	Control Features	Output Type	Frequency - Switching	Package / Case [y]	Package / Case	Package / Case [x]	Operating Temperature [Max]	Operating Temperature [Min]	Topology	Mounting Type	Output Phases	Voltage - Supply (Vcc/Vdd) [Min]	Voltage - Supply (Vcc/Vdd) [Max]	Supplier Device Package	Function	Output Configuration	Number of Outputs	Duty Cycle (Max) [Max]
Analog Devices Inc./Maxim Integrated LTC3854EMSE#TRPBF	Enable Soft Start	Transistor Driver	400 kHz	3 mm	12-TSSOP Exposed Pad	0.118 in	85 C	-40 ¯C	Buck	Surface Mount	1	4.5 V	38 V	12-MSOP-EP	Step-Down	Positive	1	98 %
Analog Devices Inc./Maxim Integrated LTC3854IDDB#TRMPBF	Enable Soft Start	Transistor Driver	400 kHz		12-WFDFN Exposed Pad		85 C	-40 ¯C	Buck	Surface Mount	1	4.5 V	38 V	12-DFN (3x2)	Step-Down	Positive	1	98 %
Analog Devices Inc./Maxim Integrated LTC3854IMSE#TRPBF	Enable Soft Start	Transistor Driver	400 kHz	3 mm	12-TSSOP Exposed Pad	0.118 in	85 C	-40 ¯C	Buck	Surface Mount	1	4.5 V	38 V	12-MSOP-EP	Step-Down	Positive	1	98 %
Analog Devices Inc./Maxim Integrated LTC3854EDDB#TRPBF	Enable Soft Start	Transistor Driver	400 kHz		12-WFDFN Exposed Pad		85 C	-40 ¯C	Buck	Surface Mount	1	4.5 V	38 V	12-DFN (3x2)	Step-Down	Positive	1	98 %
Analog Devices Inc./Maxim Integrated LTC3854EDDB#TRMPBF	Enable Soft Start	Transistor Driver	400 kHz		12-WFDFN Exposed Pad		85 C	-40 ¯C	Buck	Surface Mount	1	4.5 V	38 V	12-DFN (3x2)	Step-Down	Positive	1	98 %
Analog Devices Inc./Maxim Integrated LTC3854EMSE#PBF	Enable Soft Start	Transistor Driver	400 kHz	3 mm	12-TSSOP Exposed Pad	0.118 in	85 C	-40 ¯C	Buck	Surface Mount	1	4.5 V	38 V	12-MSOP-EP	Step-Down	Positive	1	98 %
Analog Devices Inc./Maxim Integrated LTC3854IDDB#TRPBF	Enable Soft Start	Transistor Driver	400 kHz		12-WFDFN Exposed Pad		85 C	-40 ¯C	Buck	Surface Mount	1	4.5 V	38 V	12-DFN (3x2)	Step-Down	Positive	1	98 %
Analog Devices Inc./Maxim Integrated LTC3854IMSE#PBF	Enable Soft Start	Transistor Driver	400 kHz	3 mm	12-TSSOP Exposed Pad	0.118 in	85 C	-40 ¯C	Buck	Surface Mount	1	4.5 V	38 V	12-MSOP-EP	Step-Down	Positive	1	98 %

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	$ 2.85	1m+
	Tape & Reel (TR)	2500	$ 2.85	1m+

Description

General part information

LTC3854 Series

The LTC3854 is a high performance synchronous stepdown switching DC/DC controller that drives an all N-channel synchronous power MOSFET stage.The LTC3854 features a 400kHz constant frequency current mode architecture. The LTC3854 operates from a 4.5V to 38V (40V absolute maximum) input voltage range and regulates the output voltage from 0.8V to 5.5V.The RUN/SS pin provides both soft-start and enable features. OPTI-LOOP compensation allows the transient response to be optimized over a wide range of output capacitance and ESR values. Current foldback limits MOSFET dissipation during short circuit conditions. Current foldback functions are disabled during soft-start.The LTC3854 has a minimum on-time at 75ns, making it well suited for high step-down ratios. The strong onboard MOSFET drivers allow the use of high power external MOSFETs to produce output currents up to 20A.ApplicationsAutomotive SystemsTelecom SystemsIndustrial EquipmentDistributed DC Power Systems

LTC3854IMSE#TRPBF

Deep-Dive with AI

LTC3854IMSE#TRPBF

Deep-Dive with AI

Technical Specifications

LTC3854 Series

Pricing

Description

LTC3854 Series

Documents

R526 Reliability Data

Tape and Reel Packaging

Datasheet

LTC3854 Series