LT3686EDD#PBF

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Analog Devices

SWITCHING REGULATOR, 1.2A, DFN-EP-10 ROHS COMPLIANT: YES

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LT3686EDD#PBF

Active

Analog Devices

SWITCHING REGULATOR, 1.2A, DFN-EP-10 ROHS COMPLIANT: YES

Deep-Dive with AI

DocumentsDatasheet R530 Reliability Data

Specifications Pricing Series Description Documents

Technical Specifications

Parameters and characteristics for this part

Specification	LT3686EDD#PBF

Current - Output	1.2 A
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-WFDFN Exposed Pad
Supplier Device Package	10-DFN (3x3)
Synchronous Rectifier	False
Topology	Buck
Voltage - Input (Max) [Max] [custom]	37 V
Voltage - Input (Min) [Min]	3.6 V
Voltage - Output (Max)	37 V
Voltage - Output (Min/Fixed)	0.8 V

LT3686A Series

37V/1.2A Step-Down Regulator in 3mm × 3mm DFN and MSE

Part	Voltage - Input (Min) [Min]	Number of Outputs	Voltage - Output (Min/Fixed)	Output Type	Voltage - Output (Max)	Topology	Mounting Type	Supplier Device Package	Package / Case	Function	Voltage - Input (Max) [Max] [custom]	Operating Temperature [Max]	Operating Temperature [Min]	Output Configuration	Current - Output	Package / Case
Analog Devices LT3686HDD#PBF	3.6 V	1	0.8 V	Adjustable	37 V	Buck	Surface Mount	10-DFN (3x3)	10-WFDFN Exposed Pad	Step-Down	37 V	150 °C	-40 °C	Positive	1.2 A
Analog Devices LT3686AIDD#PBF	3.6 V	1	0.8 V	Adjustable	37 V	Buck	Surface Mount	10-DFN (3x3)	10-WFDFN Exposed Pad	Step-Down	37 V	125 ¯C	-40 °C	Positive	1.2 A
Analog Devices LT3686AIMSE#PBF	3.6 V	1	0.8 V	Adjustable	37 V	Buck	Surface Mount	12-MSOP-EP	12-TSSOP Exposed Pad	Step-Down	37 V	125 ¯C	-40 °C	Positive	1.2 A	0.118 in 3 mm
Analog Devices LT3686EDD#PBF	3.6 V	1	0.8 V	Adjustable	37 V	Buck	Surface Mount	10-DFN (3x3)	10-WFDFN Exposed Pad	Step-Down	37 V	125 ¯C	-40 °C	Positive	1.2 A
Analog Devices LT3686AHMSE#PBF	3.6 V	1	0.8 V	Adjustable	37 V	Buck	Surface Mount	12-MSOP-EP	12-TSSOP Exposed Pad	Step-Down	37 V	150 °C	-40 °C	Positive	1.2 A	0.118 in 3 mm
Analog Devices LT3686IDD#PBF	3.6 V	1	0.8 V	Adjustable	37 V	Buck	Surface Mount	10-DFN (3x3)	10-WFDFN Exposed Pad	Step-Down	37 V	125 ¯C	-40 °C	Positive	1.2 A

Pricing

Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly

Distributor	Package	Quantity	$

Digikey	Tube	1	$ 7.26
		10	$ 6.56
		25	$ 6.25
		121	$ 5.43
		363	$ 5.19
		605	$ 4.73
		1089	$ 4.12
Newark	Each	1	$ 8.66
		10	$ 5.83
		25	$ 5.09
		50	$ 4.78
		100	$ 4.47
		250	$ 4.16
		500	$ 3.77

Description

General part information

LT3686A Series

The LT3686A is a current mode PWM step-down DC/DC converter with an internal power switch. The wide input range of 3.6V to 37V makes the LT3686A suitable for regulating power from a wide variety of sources, including 24V industrial supplies and automotive batteries. Its high maximum frequency allows the use of tiny inductors and capacitors, resulting in a very small solution. Operating frequency above the AM band avoids interfering with radio reception, making the LT3686A particularly suitable for automotive applications.Cycle-by-cycle current limit, thermal shutdown and DA current sense provide protection against fault conditions. Soft-start and frequency foldback eliminate input current surge during start-up. An optional internal regulated active load at the output via the BD pin keeps the LT3686A at full switching frequency at light loads, resulting in low, predictable output ripple above the audio and AM bands. Internal compensation and an internal boost diode reduce external component count.The LT3686A offers external synchronization capability, whereas the LT3686 does not.Overvoltage ProtectionsFeaturesLT368655V-LT3686A60VExternal SynchronizationApplicationsAutomotive SystemsBattery-Powered EquipmentWall Transformer RegulationDistributed Supply Regulation