Specification	LT3840EFE#TRPBF

Clock Sync	Yes
Control Features	Frequency Control, Power Good, Enable, Soft Start, Tracking
Duty Cycle (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, Positive, Negative
Output Phases	1
Output Type	Transistor Driver
Package Features	Exposed Pad
Package Length	0.173 in
Package Name	28-TSSOP, 28-TSSOP-EP
Package Width	4.4 mm
Synchronous Rectifier	Yes
Topology	Buck
Voltage - Supply (Vcc/Vdd) Maximum	60 V
Voltage - Supply (Vcc/Vdd) Minimum	2.5 V

LT3840 Series

Part	Topology	Control Features	Operating Temperature (Min)	Operating Temperature (Max)	Package Width	Package Name	Package Features	Package Length	Duty Cycle (Max)	Voltage - Supply (Vcc/Vdd) Maximum	Voltage - Supply (Vcc/Vdd) Minimum	Output Phases	Frequency - Switching (Min)	Frequency - Switching (Max)	Function	Synchronous Rectifier	Number of Outputs	Output Configuration	Mounting Type	Clock Sync	Output Type	Package / Case
Analog Devices Inc./Maxim Integrated LT3840HFE#PBF	Buck	Enable Frequency Control Power Good Soft Start Tracking	-40 °C	150 °C	4.4 mm	28-TSSOP 28-TSSOP-EP	Exposed Pad	0.173 in	99 %	60 V	2.5 V	1	50 kHz	1 MHz	Step-Down	Yes	1	Negative Positive Positive or Negative	Surface Mount	Yes	Transistor Driver
Analog Devices Inc./Maxim Integrated LT3840IUFE#PBF	Buck	Enable Frequency Control Power Good Soft Start Tracking	-40 °C	125 °C	6 mm	38-QFN		4 mm	99 %	60 V	2.5 V	1	50 kHz	1 MHz	Step-Down	Yes	1	Negative Positive Positive or Negative	Surface Mount	Yes	Transistor Driver	38-WFQFN Exposed Pad
Analog Devices Inc./Maxim Integrated LT3840IUFE#TRPBF	Buck	Enable Frequency Control Power Good Soft Start Tracking	-40 °C	125 °C	6 mm	38-QFN		4 mm	99 %	60 V	2.5 V	1	50 kHz	1 MHz	Step-Down	Yes	1	Negative Positive Positive or Negative	Surface Mount	Yes	Transistor Driver	38-WFQFN Exposed Pad
Analog Devices Inc./Maxim Integrated LT3840EUFE#TRPBF	Buck	Enable Frequency Control Power Good Soft Start Tracking	-40 °C	125 °C	6 mm	38-QFN		4 mm	99 %	60 V	2.5 V	1	50 kHz	1 MHz	Step-Down	Yes	1	Negative Positive Positive or Negative	Surface Mount	Yes	Transistor Driver	38-WFQFN Exposed Pad
Analog Devices Inc./Maxim Integrated LT3840HFE#TRPBF	Buck	Enable Frequency Control Power Good Soft Start Tracking	-40 °C	150 °C	4.4 mm	28-TSSOP 28-TSSOP-EP	Exposed Pad	0.173 in	99 %	60 V	2.5 V	1	50 kHz	1 MHz	Step-Down	Yes	1	Negative Positive Positive or Negative	Surface Mount	Yes	Transistor Driver
Analog Devices Inc./Maxim Integrated LT3840IFE#PBF	Buck	Enable Frequency Control Power Good Soft Start Tracking	-40 °C	125 °C	4.4 mm	28-TSSOP 28-TSSOP-EP	Exposed Pad	0.173 in	99 %	60 V	2.5 V	1	50 kHz	1 MHz	Step-Down	Yes	1	Negative Positive Positive or Negative	Surface Mount	Yes	Transistor Driver
Analog Devices Inc./Maxim Integrated LT3840EFE#TRPBF	Buck	Enable Frequency Control Power Good Soft Start Tracking	-40 °C	125 °C	4.4 mm	28-TSSOP 28-TSSOP-EP	Exposed Pad	0.173 in	99 %	60 V	2.5 V	1	50 kHz	1 MHz	Step-Down	Yes	1	Negative Positive Positive or Negative	Surface Mount	Yes	Transistor Driver
Analog Devices Inc./Maxim Integrated LT3840MPFE#PBF	Buck	Enable Frequency Control Power Good Soft Start Tracking	-55 °C	150 °C	4.4 mm	28-TSSOP 28-TSSOP-EP	Exposed Pad	0.173 in	99 %	60 V	2.5 V	1	50 kHz	1 MHz	Step-Down	Yes	1	Negative Positive Positive or Negative	Surface Mount	Yes	Transistor Driver
Analog Devices Inc./Maxim Integrated LT3840EUFE#PBF	Buck	Enable Frequency Control Power Good Soft Start Tracking	-40 °C	125 °C	6 mm	38-QFN		4 mm	99 %	60 V	2.5 V	1	50 kHz	1 MHz	Step-Down	Yes	1	Negative Positive Positive or Negative	Surface Mount	Yes	Transistor Driver	38-WFQFN Exposed Pad
Analog Devices Inc./Maxim Integrated LT3840MPFE#TRPBF	Buck	Enable Frequency Control Power Good Soft Start Tracking	-55 °C	150 °C	4.4 mm	28-TSSOP 28-TSSOP-EP	Exposed Pad	0.173 in	99 %	60 V	2.5 V	1	50 kHz	1 MHz	Step-Down	Yes	1	Negative Positive Positive or Negative	Surface Mount	Yes	Transistor Driver

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LT3840: Wide Input Range Synchronous Regulator Controller with Accurate Current Limit Data Sheet (Rev.B)

R530 Reliability Data