LT3680IMSE#TRPBF

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Analog Devices

CONV DC-DC 3.6V TO 36V SYNCHRONOUS STEP DOWN SINGLE-OUT 0.79V TO 30V 3.5A 10-PIN MSOP EP T/R

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LT3680IMSE#TRPBF

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Analog Devices

CONV DC-DC 3.6V TO 36V SYNCHRONOUS STEP DOWN SINGLE-OUT 0.79V TO 30V 3.5A 10-PIN MSOP EP T/R

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Technical Specifications

Parameters and characteristics for this part

Specification	LT3680IMSE#TRPBF

Current - Output	3.5 A
Frequency - Switching [Max]	2.45 MHz
Frequency - Switching [Min]	230 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	3 Lead, 0.118 in
Package / Case	Exposed Pad, 10-TFSOP, 10-MSOP
Supplier Device Package	10-MSOP-EP
Synchronous Rectifier	False
Topology	Buck
Voltage - Input (Max) [Max]	36 V
Voltage - Input (Min) [Min]	3.6 V
Voltage - Output (Max) [Max]	30 V
Voltage - Output (Min/Fixed) [Min]	0.79 V

LT3680 Series

36V, 3.5A, 2.4MHz Step-Down Switching Regulator with 75µA Quiescent Current

Part	Voltage - Output (Max) [Max]	Output Type	Frequency - Switching [Min]	Frequency - Switching [Max]	Package / Case	Package / Case	Current - Output	Supplier Device Package	Voltage - Output (Min/Fixed) [Min]	Operating Temperature [Min]	Operating Temperature [Max]	Voltage - Input (Min) [Min]	Voltage - Input (Max) [Max]	Number of Outputs	Output Configuration	Mounting Type	Topology	Function
Analog Devices LT3680IMSE#TRPBF	30 V	Adjustable	230 kHz	2.45 MHz	0.118 in 3 Lead	10-MSOP 10-TFSOP Exposed Pad	3.5 A	10-MSOP-EP	0.79 V	-40 °C	125 ¯C	3.6 V	36 V	1	Positive	Surface Mount	Buck	Step-Down
Analog Devices LT3680HMSE#PBF	30 V	Adjustable	230 kHz	2.45 MHz	0.118 in 3 Lead	10-MSOP 10-TFSOP Exposed Pad	3.5 A	10-MSOP-EP	0.79 V	-40 °C	150 °C	3.6 V	36 V	1	Positive	Surface Mount	Buck	Step-Down
Analog Devices LT3680EDD#PBF	30 V	Adjustable	230 kHz	2.45 MHz		10-WFDFN Exposed Pad	3.5 A	10-DFN (3x3)	0.79 V	-40 °C	125 ¯C	3.6 V	36 V	1	Positive	Surface Mount	Buck	Step-Down
Analog Devices LT3680IDD#PBF	30 V	Adjustable	230 kHz	2.45 MHz		10-WFDFN Exposed Pad	3.5 A	10-DFN (3x3)	0.79 V	-40 °C	125 ¯C	3.6 V	36 V	1	Positive	Surface Mount	Buck	Step-Down
Analog Devices LT3680IDD#TRPBF	30 V	Adjustable	230 kHz	2.45 MHz		10-WFDFN Exposed Pad	3.5 A	10-DFN (3x3)	0.79 V	-40 °C	125 ¯C	3.6 V	36 V	1	Positive	Surface Mount	Buck	Step-Down

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	$ 7.60

Description

General part information

LT3680 Series

The LT3680 is an adjustable frequency (200kHz to 2.4MHz) monolithic buck switching regulator that accepts input voltages up to 36V. A high efficiency 95mΩ 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. Low ripple Burst Mode®operation maintains high efficiency at low output currents while keeping output ripple below 15mV in a typical application. In addition, the LT3680 can further enhance low output current efficiency by drawing bias current from the output when VOUTis above 3V. Shutdown 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 91% of the programmed output voltage. The LT3680 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

Datasheet

Tape and Reel Packaging

R530 Reliability Data

Reliability Data

LT3680: 36V, 3.5A, 2.4MHz Step-Down Switching Regulator with 75µA Quiescent Current Data Sheet (Rev.C)

Data Sheet