Specification	LT3684IMSE#PBF

Current - Output	2 A
Frequency - Switching [Max]	3 MHz
Frequency - Switching [Min]	300 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
Output Type	Adjustable
Package / Case	10-MSOP, 10-TFSOP, Exposed Pad
Supplier Device Package	10-MSOP-EP
Synchronous Rectifier	False
Topology	Buck
Voltage - Input (Max) [Max]	34 V
Voltage - Input (Min) [Min]	3.6 V
Voltage - Output (Max) [Max]	20 V
Voltage - Output (Min/Fixed)	1.265 V

LT3684 Series

36V, 2A, 2.8MHz Step-Down Switching Regulator

Part	Voltage - Output (Max) [Max]	Voltage - Input (Min) [Min]	Output Type	Package / Case	Voltage - Input (Max) [Max]	Frequency - Switching [Max]	Frequency - Switching [Min]	Number of Outputs	Current - Output	Output Configuration	Operating Temperature [Max]	Operating Temperature [Min]	Function	Mounting Type	Topology	Voltage - Output (Min/Fixed)	Supplier Device Package
Analog Devices Inc./Maxim Integrated LT3684EMSE#TRPBF	20 V	3.6 V	Adjustable	10-MSOP 10-TFSOP Exposed Pad	34 V	3 MHz	300 kHz	1	2 A	Positive	85 C	-40 ¯C	Step-Down	Surface Mount	Buck	1.265 V	10-MSOP-EP
Analog Devices Inc./Maxim Integrated LT3684IMSE#PBF	20 V	3.6 V	Adjustable	10-MSOP 10-TFSOP Exposed Pad	34 V	3 MHz	300 kHz	1	2 A	Positive	125 °C	-40 C	Step-Down	Surface Mount	Buck	1.265 V	10-MSOP-EP
Analog Devices Inc./Maxim Integrated LT3684IDD#TRPBF	20 V	3.6 V	Adjustable	10-WFDFN Exposed Pad	34 V	3 MHz	300 kHz	1	2 A	Positive	125 °C	-40 C	Step-Down	Surface Mount	Buck	1.265 V	10-DFN (3x3)
Analog Devices Inc./Maxim Integrated LT3684IDD#PBF	20 V	3.6 V	Adjustable	10-WFDFN Exposed Pad	34 V	3 MHz	300 kHz	1	2 A	Positive	125 °C	-40 C	Step-Down	Surface Mount	Buck	1.265 V	10-DFN (3x3)
Analog Devices Inc./Maxim Integrated LT3684EMSE#PBF	20 V	3.6 V	Adjustable	10-MSOP 10-TFSOP Exposed Pad	34 V	3 MHz	300 kHz	1	2 A	Positive	85 C	-40 ¯C	Step-Down	Surface Mount	Buck	1.265 V	10-MSOP-EP
Analog Devices Inc./Maxim Integrated LT3684EDD#TRPBF	20 V	3.6 V	Adjustable	10-WFDFN Exposed Pad	34 V	3 MHz	300 kHz	1	2 A	Positive	85 C	-40 ¯C	Step-Down	Surface Mount	Buck	1.265 V	10-DFN (3x3)
Analog Devices Inc./Maxim Integrated LT3684IMSE#TRPBF	20 V	3.6 V	Adjustable	10-MSOP 10-TFSOP Exposed Pad	34 V	3 MHz	300 kHz	1	2 A	Positive	125 °C	-40 C	Step-Down	Surface Mount	Buck	1.265 V	10-MSOP-EP

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	100	$ 11.36	1m+

Description

General part information

LT3684 Series

The LT3684 is an adjustable frequency (300kHz to 2.8MHz) monolithic buck switching regulator that accepts input voltages up to 34V (36V maximum). A high efficiency 0.18Ω switch is included on the die along with a boost Schottky diode and the necessary oscillator, control and logic circuitry. Current mode topology is used for fast transient response and good loop stability. The LT3684’s high operating frequency allows the use of small, low cost inductors and ceramic capacitors resulting in low output ripple while keeping total solution size to a minimum. The low current shutdown mode reduces input supply current to less than 1µA while a resistor and capacitor on the RUN/SS pin provide a controlled output voltage ramp (soft-start). A power good flag signals when VOUTreaches 90% of the programmed output voltage. The LT3684 is available in 10-Pin MSOP and 3mm × 3mm DFN packages with Exposed Pads for low thermal resistance.ApplicationsAutomotive Battery RegulationPower for Portable ProductsDistributed Supply RegulationIndustrial SuppliesWall Transformer Regulation

Documents

Technical documentation and resources

LT3684IMSE#PBF | Datasheet

Datasheet

R530 Reliability Data

Reliability Data