Datasheet Linear Technology LTC3549
| Manufacturer | Linear Technology |
| Series | LTC3549 |
250mA Low VIN Buck Regulator in 2mm x 3mm DFN
Datasheets
Datasheet LTC3549
PDF, 370 Kb, Language: en, File uploaded: Sep 22, 2017, Pages: 16
250mA Low VIN Buck Regulator in 2mm × 3mm DFN
250mA Low VIN Buck Regulator in 2mm × 3mm DFN
Extract from the document
Prices
Packaging
| LTC3549EDCB#PBF | LTC3549EDCB#TRMPBF | LTC3549EDCB#TRPBF | |
|---|---|---|---|
| N | 1 | 2 | 3 |
| Package | 2x3 DFN-6 Package Outline Drawing | 2x3 DFN-6 Package Outline Drawing | 2x3 DFN-6 Package Outline Drawing |
| Package Code | DCB | DCB | DCB |
| Package Index | 05-08-1715 | 05-08-1715 | 05-08-1715 |
| Pin Count | 6 | 6 | 6 |
Parametrics
| Parameters / Models | LTC3549EDCB#PBF | LTC3549EDCB#TRMPBF | LTC3549EDCB#TRPBF |
|---|---|---|---|
| Architecture | Constant Frequency Current Mode | Constant Frequency Current Mode | Constant Frequency Current Mode |
| Demo Boards | DC992A | DC992A | DC992A |
| Design Tools | LTspice File,LTpowerCAD File | LTspice File,LTpowerCAD File | LTspice File,LTpowerCAD File |
| Export Control | no | no | no |
| Features | Burst Mode, 100% Duty Cycle | Burst Mode, 100% Duty Cycle | Burst Mode, 100% Duty Cycle |
| Frequency, kHz | 2250 | 2250 | 2250 |
| Integrated Inductor | no | no | no |
| Ishutdown, µA | 0.1 | 0.1 | 0.1 |
| Isupply, mA | 0.05 | 0.05 | 0.05 |
| Max Phases | 1 | 1 | 1 |
| Monolithic | yes | yes | yes |
| Number of Outputs | 1 | 1 | 1 |
| Operating Temperature Range, °C | 0 to 85 | 0 to 85 | 0 to 85 |
| Output Current, A | 0.25 | 0.25 | 0.25 |
| Polyphase | no | no | no |
| Switch Current, A | 0.45 | 0.45 | 0.45 |
| Synchronous | yes | yes | yes |
| Topology | Buck | Buck | Buck |
| Vin Max, V | 5.5 | 5.5 | 5.5 |
| Vin Min, V | 1.6 | 1.6 | 1.6 |
| Vout Max, V | 5.5 | 5.5 | 5.5 |
| Vout Maximum | Vin | Vin | Vin |
| Vout Min, V | 0.611 | 0.611 | 0.611 |
| Vref Accuracy Over Temp, % | 2 | 2 | 2 |
Eco Plan
| LTC3549EDCB#PBF | LTC3549EDCB#TRMPBF | LTC3549EDCB#TRPBF | |
|---|---|---|---|
| RoHS | Compliant | Compliant | Compliant |
Articles
- Monolithic Buck Regulator Operates Down to 1.6V Input &mdash LT JournalPDF, 151 Kb, File published: Nov 22, 2006Extract from the document
Model Line
Series: LTC3549 (3)
Manufacturer's Classification
- Power Management > Switching Regulator > Step-Down (Buck) Regulators > Micropower Buck Regulators | Internal Power Switch Buck
