CONEC Elektronische Bauelemente GmbH-4HDD26PCM99B20XE null null

LTC3631EDD#PBF

Active

Analog Devices Inc./Maxim Integrated

CONV DC-DC 4.5V TO 45V SYNCHRONOUS STEP DOWN SINGLE-OUT 0.8V TO 45V 0.1A 8-PIN DFN EP TUBE

Find alt

Alpha

LTC3631EDD#PBF

Active

Analog Devices Inc./Maxim Integrated

CONV DC-DC 4.5V TO 45V SYNCHRONOUS STEP DOWN SINGLE-OUT 0.8V TO 45V 0.1A 8-PIN DFN EP TUBE

Find alt

Alpha

Description Specifications Series Pricing CAD Documents

Description

General part information

LTC3631 Series

The LTC3631 is a high voltage, high efficiency step-down DC/DC converter with internal high side and synchronous power switches that draws only 12μA typical DC supply current at no load while maintaining output voltage regulation.The LTC3631 can supply up to 100mA load current and features a programmable peak current limit that provides a simple method for optimizing efficiency in lower current applications. The LTC3631’s combination of Burst Mode®operation, integrated power switches, low quiescent current, and programmable peak current limit provides high efficiency over a broad range of load currents.With its wide 4.5V to 45V input range and internal overvoltage monitor capable of protecting the part from 60V surges, the LTC3631 is a robust converter suited for regulating a wide variety of power sources. Additionally, the LTC3631 includes a precise run threshold and a soft-start feature to guarantee that power system start-up is well-controlled in any environment.The LTC3631 is available in the thermally enhanced 3mm × 3mm DFN and MS8E packages.Applications4mA to 20mA Current LoopsIndustrial Control SuppliesDistributed Power SystemsPortable InstrumentsBattery-Operated DevicesAutomotive Power Systems

Technical Specifications

Parameters and characteristics for this part

Specification	LTC3631EDD#PBF

Current - Output	100 mA
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 Type	Adjustable
Package / Case	8-WFDFN Exposed Pad
Package Length	3 mm
Package Name	8-DFN
Package Width	3 mm
Synchronous Rectifier	Yes
Topology	Buck
Voltage - Input (Max)	45 V
Voltage - Input (Min)	4.5 V
Voltage - Output (Max)	45 V
Voltage - Output (Min/Fixed)	0.8 V

LTC3631 Series

Part	Utilized IC / Part	Current - Output	Total Output Count	Output Type	Non-Isolated Output Count	Contents	Regulator Topology	Main Purpose	Voltage - Input (Maximum)	Voltage - Input (Minimum)	Frequency - Switching	Voltage - Output	Operating Temperature (Max)	Operating Temperature (Min)	Voltage - Input (Min)	Mounting Type	Voltage - Input (Max)	Package Name	Output Configuration	Synchronous Rectifier	Topology	Voltage - Output (Min/Fixed)	Number of Outputs	Voltage - Output (Max)	Package Length	Package Features	Package Width	Function	Package / Case
Analog Devices Inc./Maxim Integrated DC1499A	LTC3631	100 mA	1	Non-Isolated	1 count	Board	Buck	DC/DC Step Down	45 V	4.5 V	350 kHz	5 VDC
Analog Devices Inc./Maxim Integrated LTC3631IMS8E#TRPBF		100 mA		Adjustable									125 °C	-40 °C	4.5 V	Surface Mount	45 V	8-MSOP 8-MSOP-EP 8-TSSOP	Negative Positive Positive or Negative	Yes	Buck	0.8 V	1	45 V	0.118 in	Exposed Pad	3 mm	Step-Down
Analog Devices Inc./Maxim Integrated LTC3631IMS8E-5#PBF		100 mA		Fixed									125 °C	-40 °C	4.5 V	Surface Mount	45 V	8-MSOP 8-MSOP-EP 8-TSSOP	Negative Positive Positive or Negative	Yes	Buck	5 V	1		0.118 in	Exposed Pad	3 mm	Step-Down
Analog Devices Inc./Maxim Integrated LTC3631IMS8E-3.3#TRPBF		100 mA		Fixed									125 °C	-40 °C	4.5 V	Surface Mount	45 V	8-MSOP 8-MSOP-EP 8-TSSOP	Negative Positive Positive or Negative	Yes	Buck	3.3 V	1		0.118 in	Exposed Pad	3 mm	Step-Down
Analog Devices Inc./Maxim Integrated LTC3631IDD-3.3#TRPBF		100 mA		Fixed									125 °C	-40 °C	4.5 V	Surface Mount	45 V	8-DFN	Negative Positive Positive or Negative	Yes	Buck	3.3 V	1		3 mm		3 mm	Step-Down	8-WFDFN Exposed Pad
Analog Devices Inc./Maxim Integrated LTC3631EMS8E#TRPBF		100 mA		Adjustable									125 °C	-40 °C	4.5 V	Surface Mount	45 V	8-MSOP 8-MSOP-EP 8-TSSOP	Negative Positive Positive or Negative	Yes	Buck	0.8 V	1	45 V	0.118 in	Exposed Pad	3 mm	Step-Down
Analog Devices Inc./Maxim Integrated LTC3631EDD#TRPBF		100 mA		Adjustable									125 °C	-40 °C	4.5 V	Surface Mount	45 V	8-DFN	Negative Positive Positive or Negative	Yes	Buck	0.8 V	1	45 V	3 mm		3 mm	Step-Down	8-WFDFN Exposed Pad
Analog Devices Inc./Maxim Integrated LTC3631IDD#PBF		100 mA		Adjustable									125 °C	-40 °C	4.5 V	Surface Mount	45 V	8-DFN	Negative Positive Positive or Negative	Yes	Buck	0.8 V	1	45 V	3 mm		3 mm	Step-Down	8-WFDFN Exposed Pad
Analog Devices Inc./Maxim Integrated LTC3631EMS8E-3.3#TRPBF		100 mA		Fixed									125 °C	-40 °C	4.5 V	Surface Mount	45 V	8-MSOP 8-MSOP-EP 8-TSSOP	Negative Positive Positive or Negative	Yes	Buck	3.3 V	1		0.118 in	Exposed Pad	3 mm	Step-Down
Analog Devices Inc./Maxim Integrated LTC3631IDD#TRPBF		100 mA		Adjustable									125 °C	-40 °C	4.5 V	Surface Mount	45 V	8-DFN	Negative Positive Positive or Negative	Yes	Buck	0.8 V	1	45 V	3 mm		3 mm	Step-Down	8-WFDFN Exposed Pad

Pricing

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

Create a free account to access distributor pricing data.

CAD

3D models and CAD resources for this part

Documents

Technical documentation and resources

R526 Reliability Data

LTC3631EDD#PBF | Datasheet