| Part No.： | LT8640 |
| Page： | 30 Pages |
| Size： | 1673 KB |
| Manufacturer： | Linear Technology |
| Logo： |  |
| Views： | 2 |
| Update Time： | 2023-09-19 18:03:14 |
| DataSheet： | Download |
| Part No. | Packing | SPQ | Marking | MSL | Pins | Temp Range | Package Description | Buy |
| LT8640EUDC#PBF | Tube | 91 | LGNJ | 1 | 18 | -40°C ~ 125°C | 18-Lead (3mm × 4mm) Plastic QFN | |
| LT8640EUDC#TRPBF | Reel | 2500 | LGNJ | 1 | 18 | -40°C ~ 125°C | 18-Lead (3mm × 4mm) Plastic QFN | |
| LT8640EUDC#TRMPBF | Reel | 500 | LGNJ | 1 | 18 | -40°C ~ 125°C | 18-Lead (3mm × 4mm) Plastic QFN | |
| LT8640IUDC#PBF | Tube | 91 | LGNJ | 1 | 18 | -40°C ~ 125°C | 18-Lead (3mm × 4mm) Plastic QFN | |
| LT8640IUDC#TRPBF | Reel | 2500 | LGNJ | 1 | 18 | -40°C ~ 125°C | 18-Lead (3mm × 4mm) Plastic QFN | |
| LT8640IUDC#TRMPBF | Reel | 500 | LGNJ | 1 | 18 | -40°C ~ 125°C | 18-Lead (3mm × 4mm) Plastic QFN | |
| LT8640HUDC#PBF | Tube | 91 | LGNJ | 1 | 18 | -40°C ~ 150°C | 18-Lead (3mm × 4mm) Plastic QFN | |
| LT8640HUDC#TRPBF | Reel | 2500 | LGNJ | 1 | 20 | -40°C ~ 150°C | 20-Lead (3mm × 4mm) Plastic QFN | |
| LT8640HUDC#TRMPBF | Reel | 500 | LGNJ | 1 | 20 | -40°C ~ 150°C | 20-Lead (3mm × 4mm) Plastic QFN | |
| LT8640EUDCF#PBF | Tube | 91 | LHJK | 1 | 18 | -40°C ~ 125°C | 18-Lead (3mm × 4mm) Plastic Side Wettable QFN | |
| LT8640EUDCF#TRPBF | Reel | 2500 | LHJK | 1 | 18 | -40°C ~ 125°C | 18-Lead (3mm × 4mm) Plastic Side Wettable QFN | |
| LT8640EUDCF#TRMPBF | Reel | 500 | LHJK | 1 | 18 | -40°C ~ 125°C | 18-Lead (3mm × 4mm) Plastic Side Wettable QFN | |
| LT8640IUDCF#PBF | Tube | 91 | LHJK | 1 | 18 | -40°C ~ 125°C | 18-Lead (3mm × 4mm) Plastic Side Wettable QFN | |
| LT8640IUDCF#TRPBF | Reel | 2500 | LHJK | 1 | 18 | -40°C ~ 125°C | 18-Lead (3mm × 4mm) Plastic Side Wettable QFN | |
| LT8640IUDCF#TRMPBF | Reel | 500 | LHJK | 1 | 18 | -40°C ~ 125°C | 18-Lead (3mm × 4mm) Plastic Side Wettable QFN | |
| LT8640JUDCF#PBF | Tube | 91 | LHJK | 1 | 20 | -40°C ~ 150°C | 20-Lead (3mm × 4mm) Plastic Side Wettable QFN | |
| LT8640JUDCF#TRPBF | Reel | 2500 | LHJK | 1 | 18 | -40°C ~ 150°C | 18-Lead (3mm × 4mm) Plastic Side Wettable QFN | |
| LT8640JUDCF#TRMPBF | Reel | 500 | LHJK | 1 | 18 | -40°C ~ 150°C | 18-Lead (3mm × 4mm) Plastic Side Wettable QFN | |
| LT8640HUDCF#PBF | Tube | 91 | LHJK | 1 | 20 | -40°C ~ 150°C | 20-Lead (3mm × 4mm) Plastic Side Wettable QFN | |
| LT8640HUDCF#TRPBF | Reel | 2500 | LHJK | 1 | 20 | -40°C ~ 150°C | 20-Lead (3mm × 4mm) Plastic Side Wettable QFN | |
| LT8640HUDCF#TRMPBF | Reel | 500 | LHJK | 1 | 20 | -40°C ~ 150°C | 20-Lead (3mm × 4mm) Plastic Side Wettable QFN | |
| LT8640JUDCF#WPBF | Tube | 91 | LHJK | 1 | 18 | -40°C ~ 150°C | 18-Lead (3mm × 4mm) Plastic Side Wettable QFN | |
| LT8640JUDCF#WTRPBF | Reel | 2500 | LHJK | 1 | 18 | -40°C ~ 150°C | 18-Lead (3mm × 4mm) Plastic Side Wettable QFN | |
| LT8640JUDCF#WTRMPBF | Reel | 500 | LHJK | 1 | 18 | -40°C ~ 150°C | 18-Lead (3mm × 4mm) Plastic Side Wettable QFN |
The LT8640 step-down regulator features Silent Switcher architecture designed to minimize EMI emissions while delivering high efficiency at frequencies up to 3MHz. An ultralow 2.5µA quiescent current—with the output in full regulation—enables applications requiring highest efficiency at very small load currents.
The LT8640 allows high VIN to low VOUT conversion at high frequency with a fast minimum top switch on-time of 30ns. The SYNC/MODE pin selects between Burst Mode operation, spread spectrum mode, synchronization to an external clock, and either pulse-skipping (LT8640).
