Integrated Circuits (ICs)

LT3840EFE#TRPBF

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Analog Devices Inc./Maxim Integrated

SWITCHING VOLTAGE REGULATORS WIDE IN RNG SYNC REG CNTR W/ ACC C LIM

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DocumentsLT3840EFE#TRPBF | Datasheet

Integrated Circuits (ICs)

LT3840EFE#TRPBF

Active

Analog Devices Inc./Maxim Integrated

SWITCHING VOLTAGE REGULATORS WIDE IN RNG SYNC REG CNTR W/ ACC C LIM

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DocumentsLT3840EFE#TRPBF | Datasheet

Specifications Series Pricing Description Documents

Technical Specifications

Parameters and characteristics for this part

Specification	LT3840EFE#TRPBF

Clock Sync	True
Control Features	Power Good, Frequency Control, Soft Start, Tracking, Enable
Duty Cycle (Max) [Max]	99 %
Frequency - Switching [Max]	1 MHz
Frequency - Switching [Min]	50 kHz
Function	Step-Down
Mounting Type	Surface Mount
Number of Outputs	1
Operating Temperature [Max]	125 °C
Operating Temperature [Min]	-40 C
Output Configuration	Positive or Negative
Output Phases	1
Output Type	Transistor Driver
Package / Case	28-TSSOP (0.173", 4.40mm Width) Exposed Pad
Supplier Device Package	28-TSSOP-EP
Synchronous Rectifier	True
Topology	Buck
Voltage - Supply (Vcc/Vdd) [Max]	60 V
Voltage - Supply (Vcc/Vdd) [Min]	2.5 V

LT3840 Series

Part	Topology	Control Features	Operating Temperature [Min]	Operating Temperature [Max]	Package / Case	Duty Cycle (Max) [Max]	Voltage - Supply (Vcc/Vdd) [Min]	Voltage - Supply (Vcc/Vdd) [Max]	Output Phases	Frequency - Switching [Min]	Frequency - Switching [Max]	Function	Number of Outputs	Output Configuration	Mounting Type	Supplier Device Package	Output Type
Analog Devices Inc./Maxim Integrated LT3840HFE#PBF	Buck	Enable Frequency Control Power Good Soft Start Tracking	-40 °C	150 °C	28-TSSOP (0.173" 4.40mm Width) Exposed Pad	99 %	2.5 V	60 V	1	50 kHz	1 MHz	Step-Down	1	Positive or Negative	Surface Mount	28-TSSOP-EP	Transistor Driver
Analog Devices Inc./Maxim Integrated LT3840IUFE#PBF	Buck	Enable Frequency Control Power Good Soft Start Tracking	-40 C	125 °C	38-WFQFN Exposed Pad	99 %	2.5 V	60 V	1	50 kHz	1 MHz	Step-Down	1	Positive or Negative	Surface Mount	38-QFN (4x6)	Transistor Driver
Analog Devices Inc./Maxim Integrated LT3840IUFE#TRPBF	Buck	Enable Frequency Control Power Good Soft Start Tracking	-40 C	125 °C	38-WFQFN Exposed Pad	99 %	2.5 V	60 V	1	50 kHz	1 MHz	Step-Down	1	Positive or Negative	Surface Mount	38-QFN (4x6)	Transistor Driver
Analog Devices Inc./Maxim Integrated LT3840EUFE#TRPBF	Buck	Enable Frequency Control Power Good Soft Start Tracking	-40 C	125 °C	38-WFQFN Exposed Pad	99 %	2.5 V	60 V	1	50 kHz	1 MHz	Step-Down	1	Positive or Negative	Surface Mount	38-QFN (4x6)	Transistor Driver
Analog Devices Inc./Maxim Integrated LT3840HFE#TRPBF	Buck	Enable Frequency Control Power Good Soft Start Tracking	-40 °C	150 °C	28-TSSOP (0.173" 4.40mm Width) Exposed Pad	99 %	2.5 V	60 V	1	50 kHz	1 MHz	Step-Down	1	Positive or Negative	Surface Mount	28-TSSOP-EP	Transistor Driver
Analog Devices Inc./Maxim Integrated LT3840IFE#PBF	Buck	Enable Frequency Control Power Good Soft Start Tracking	-40 C	125 °C	28-TSSOP (0.173" 4.40mm Width) Exposed Pad	99 %	2.5 V	60 V	1	50 kHz	1 MHz	Step-Down	1	Positive or Negative	Surface Mount	28-TSSOP-EP	Transistor Driver
Analog Devices Inc./Maxim Integrated LT3840EFE#TRPBF	Buck	Enable Frequency Control Power Good Soft Start Tracking	-40 C	125 °C	28-TSSOP (0.173" 4.40mm Width) Exposed Pad	99 %	2.5 V	60 V	1	50 kHz	1 MHz	Step-Down	1	Positive or Negative	Surface Mount	28-TSSOP-EP	Transistor Driver
Analog Devices Inc./Maxim Integrated LT3840MPFE#PBF	Buck	Enable Frequency Control Power Good Soft Start Tracking	-55 °C	150 °C	28-TSSOP (0.173" 4.40mm Width) Exposed Pad	99 %	2.5 V	60 V	1	50 kHz	1 MHz	Step-Down	1	Positive or Negative	Surface Mount	28-TSSOP-EP	Transistor Driver
Analog Devices Inc./Maxim Integrated LT3840EUFE#PBF	Buck	Enable Frequency Control Power Good Soft Start Tracking	-40 C	125 °C	38-WFQFN Exposed Pad	99 %	2.5 V	60 V	1	50 kHz	1 MHz	Step-Down	1	Positive or Negative	Surface Mount	38-QFN (4x6)	Transistor Driver
Analog Devices Inc./Maxim Integrated LT3840MPFE#TRPBF	Buck	Enable Frequency Control Power Good Soft Start Tracking	-55 °C	150 °C	28-TSSOP (0.173" 4.40mm Width) Exposed Pad	99 %	2.5 V	60 V	1	50 kHz	1 MHz	Step-Down	1	Positive or Negative	Surface Mount	28-TSSOP-EP	Transistor Driver

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	1696	$ 11.75	1m+
Mouser	N/A	2000	$ 5.68	1m+

Description

General part information

LT3840 Series

SWITCHING VOLTAGE REGULATORS WIDE IN RNG SYNC REG CNTR W/ ACC C LIM

Documents

Technical documentation and resources

LT3840EFE#TRPBF | Datasheet

Datasheet