LTC3631 Datasheet
High Efficiency, High Voltage 100mA Synchronous Step-Down Converter
High Efficiency, High Voltage 100mA Synchronous Step-Down Converter
| Part No. | In Stock | Price | Packaging | SPQ | Marking | MSL | Pins | Temp Range | Package Description |
| LTC3631EDD#PBF | 0 | $3.987 | Tube | 121 | LFDV | 1 | 8 | -40°C ~ 125°C | 8-Lead DFN |
| LTC3631EDD#TRPBF | 0 | $3.987 | Reel | 2500 | LFDV | 1 | 8 | -40°C ~ 125°C | 8-Lead DFN |
| LTC3631EDD-3.3#PBF | 0 | $3.987 | Tube | 121 | LFFN | 1 | 8 | -40°C ~ 125°C | 8-Lead DFN |
| LTC3631EDD-3.3#TRPBF | 950pcs | $3.987 | Reel | 2500 | LFFN | 1 | 8 | -40°C ~ 125°C | 8-Lead DFN |
| LTC3631EDD-5#PBF | 0 | $3.987 | Tube | 121 | LFFQ | 1 | 8 | -40°C ~ 125°C | 8-Lead DFN |
| LTC3631EDD-5#TRPBF | 0 | $3.987 | Reel | 2500 | LFFQ | 1 | 8 | -40°C ~ 125°C | 8-Lead DFN |
| LTC3631EMS8E#PBF | 0 | $3.987 | Tube | 50 | LTFDT | 1 | 8 | -40°C ~ 125°C | 8-Lead MSOP-EP |
| LTC3631EMS8E#TRPBF | 2500pcs | $3.987 | Reel | 2500 | LTFDT | 1 | 8 | -40°C ~ 125°C | 8-Lead MSOP-EP |
| LTC3631EMS8E-3.3#PBF | 0 | $3.987 | Tube | 50 | LTFFP | 1 | 8 | -40°C ~ 125°C | 8-Lead MSOP-EP |
| LTC3631EMS8E-3.3#TRPBF | 2500pcs | $3.987 | Reel | 2500 | LTFFP | 1 | 8 | -40°C ~ 125°C | 8-Lead MSOP-EP |
| LTC3631EMS8E-5#PBF | 0 | $3.987 | Tube | 50 | LTFFR | 1 | 8 | -40°C ~ 125°C | 8-Lead MSOP-EP |
| LTC3631EMS8E-5#TRPBF | 0 | $3.987 | Reel | 2500 | LTFFR | 1 | 8 | -40°C ~ 125°C | 8-Lead MSOP-EP |
| LTC3631IDD#PBF | 0 | $4.824 | Tube | 121 | LFDV | 1 | 8 | -40°C ~ 125°C | 8-Lead DFN |
| LTC3631IDD#TRPBF | 0 | $4.581 | Reel | 2500 | LFDV | 1 | 8 | 0°C ~ 70°C | 8-Lead DFN |
| LTC3631IDD-3.3#PBF | 800pcs | $4.581 | Tube | 121 | LFFN | 1 | 8 | -40°C ~ 125°C | 8-Lead DFN |
| LTC3631IDD-3.3#TRPBF | 0 | $4.581 | Reel | 2500 | LFFN | 1 | 8 | -40°C ~ 125°C | 8-Lead DFN |
| LTC3631IDD-5#PBF | 0 | $4.581 | Tube | 121 | LFFQ | 1 | 8 | -40°C ~ 125°C | 8-Lead DFN |
| LTC3631IDD-5#TRPBF | 0 | $4.581 | Reel | 2500 | LFFQ | 1 | 8 | -40°C ~ 125°C | 8-Lead DFN |
| LTC3631IMS8E#PBF | 0 | $4.581 | Tube | 50 | LTFDT | 1 | 8 | -40°C ~ 125°C | 8-Lead MSOP-EP |
| LTC3631IMS8E#TRPBF | 1600pcs | $4.581 | Reel | 2500 | LTFDT | 1 | 8 | -40°C ~ 125°C | 8-Lead MSOP-EP |
| LTC3631IMS8E-3.3#PBF | 0 | $4.581 | Tube | 50 | LTFFP | 1 | 8 | -40°C ~ 125°C | 8-Lead MSOP-EP |
| LTC3631IMS8E-3.3#TRPBF | 0 | $4.581 | Reel | 2500 | LTFFP | 1 | 8 | -40°C ~ 125°C | 8-Lead MSOP-EP |
| LTC3631IMS8E-5#PBF | 0 | $4.581 | Tube | 50 | LTFFR | 1 | 8 | -40°C ~ 125°C | 8-Lead MSOP-EP |
| LTC3631IMS8E-5#TRPBF | 0 | $4.581 | Reel | 2500 | LTFFR | 1 | 8 | -40°C ~ 125°C | 8-Lead MSOP-EP |
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.