Datasheet Linear Technology LTC3547
| Manufacturer | Linear Technology |
| Series | LTC3547 |
Dual Monolithic 300mA Synchronous Step-Down Regulator
Datasheets
Datasheet LTC3547
PDF, 310 Kb, Language: en, File uploaded: Sep 21, 2017, Pages: 16
Dual Monolithic 300mA Synchronous Step-Down Regulator
Dual Monolithic 300mA Synchronous Step-Down Regulator
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Packaging
| LTC3547EDDB#PBF | LTC3547EDDB#TRMPBF | LTC3547EDDB#TRPBF | LTC3547EDDB-1#PBF | LTC3547EDDB-1#TRMPBF | LTC3547EDDB-1#TRPBF | |
|---|---|---|---|---|---|---|
| N | 1 | 2 | 3 | 4 | 5 | 6 |
| Package | 3x2 DFN-8 Package Outline Drawing | 3x2 DFN-8 Package Outline Drawing | 3x2 DFN-8 Package Outline Drawing | 3x2 DFN-8 Package Outline Drawing | 3x2 DFN-8 Package Outline Drawing | 3x2 DFN-8 Package Outline Drawing |
| Package Code | DDB | DDB | DDB | DDB | DDB | DDB |
| Package Index | 05-08-1702 | 05-08-1702 | 05-08-1702 | 05-08-1702 | 05-08-1702 | 05-08-1702 |
| Pin Count | 8 | 8 | 8 | 8 | 8 | 8 |
Parametrics
| Parameters / Models | LTC3547EDDB#PBF | LTC3547EDDB#TRMPBF | LTC3547EDDB#TRPBF | LTC3547EDDB-1#PBF | LTC3547EDDB-1#TRMPBF | LTC3547EDDB-1#TRPBF |
|---|---|---|---|---|---|---|
| Architecture | Constant Frequency Current Mode | Constant Frequency Current Mode | Constant Frequency Current Mode | Constant Frequency Current Mode | Constant Frequency Current Mode | Constant Frequency Current Mode |
| Demo Boards | DC1013A | DC1013A | DC1013A | DC1013A | DC1013A | DC1013A |
| Design Tools | LTspice File,LTpowerCAD File | LTspice File,LTpowerCAD File | LTspice File,LTpowerCAD File | LTspice File,LTpowerCAD File | LTspice File,LTpowerCAD File | LTspice File,LTpowerCAD File |
| Export Control | no | no | no | no | no | no |
| Features | Fixed Output, 100% Duty Cycle | Fixed Output, 100% Duty Cycle | Fixed Output, 100% Duty Cycle | Fixed Output, 100% Duty Cycle | Fixed Output, 100% Duty Cycle | Fixed Output, 100% Duty Cycle |
| Frequency, kHz | 2250 | 2250 | 2250 | 2250 | 2250 | 2250 |
| Integrated Inductor | no | no | no | no | no | no |
| Ishutdown, µA | 0.1 | 0.1 | 0.1 | 0.1 | 0.1 | 0.1 |
| Isupply, mA | 0.04 | 0.04 | 0.04 | 0.04 | 0.04 | 0.04 |
| Max Phases | 1 | 1 | 1 | 1 | 1 | 1 |
| Monolithic | yes | yes | yes | yes | yes | yes |
| Number of Outputs | 2 | 2 | 2 | 2 | 2 | 2 |
| Operating Temperature Range, °C | 0 to 85 | 0 to 85 | 0 to 85 | 0 to 85 | 0 to 85 | 0 to 85 |
| Output Current, A | 0.3 | 0.3 | 0.3 | 0.3 | 0.3 | 0.3 |
| Output Current 2, A | 0.3 | 0.3 | 0.3 | 0.3 | 0.3 | 0.3 |
| Polyphase | no | no | no | no | no | no |
| Switch Current, A | 0.55 | 0.55 | 0.55 | 0.55 | 0.55 | 0.55 |
| Switch Current 2, A | 0.55 | 0.55 | 0.55 | 0.55 | 0.55 | 0.55 |
| Synchronous | yes | yes | yes | yes | yes | yes |
| Topology | Buck | Buck | Buck | Buck | Buck | Buck |
| Topology 1 | Buck | Buck | Buck | Buck | Buck | Buck |
| Topology 2 | Buck | Buck | Buck | Buck | Buck | Buck |
| Vin Max, V | 5.5 | 5.5 | 5.5 | 5.5 | 5.5 | 5.5 |
| Vin Min, V | 2.5 | 2.5 | 2.5 | 2.5 | 2.5 | 2.5 |
| Vout Max, V | 5.5 | 5.5 | 5.5 | 5.5 | 5.5 | 5.5 |
| Vout Maximum | Vin | Vin | Vin | Vin | Vin | Vin |
| Vout Min, V | 0.6 | 0.6 | 0.6 | 0.6 | 0.6 | 0.6 |
| Vout Min 2, V | 0.6 | 0.6 | 0.6 | 0.6 | 0.6 | 0.6 |
| Vref Accuracy Over Temp, % | 2 | 2 | 2 | 2 | 2 | 2 |
Eco Plan
| LTC3547EDDB#PBF | LTC3547EDDB#TRMPBF | LTC3547EDDB#TRPBF | LTC3547EDDB-1#PBF | LTC3547EDDB-1#TRMPBF | LTC3547EDDB-1#TRPBF | |
|---|---|---|---|---|---|---|
| RoHS | Compliant | Compliant | Compliant | Compliant | Compliant | Compliant |
Model Line
Series: LTC3547 (6)
Manufacturer's Classification
- Power Management > Switching Regulator > Step-Down (Buck) Regulators > Multiple Output Buck | Micropower Buck Regulators | Internal Power Switch Buck