Datasheet Linear Technology LTC3121
| Manufacturer | Linear Technology |
| Series | LTC3121 |
15V, 1.5A Synchronous Step-Up DC/DC Converter with Output Disconnect
Datasheets
Datasheet LTC3121
PDF, 973 Kb, Language: en, File uploaded: Sep 20, 2017, Pages: 26
15V, 1.5A Synchronous Step-Up DC/DC Converter with Output Disconnect
15V, 1.5A Synchronous Step-Up DC/DC Converter with Output Disconnect
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Prices
Packaging
| LTC3121EDE#PBF | LTC3121EDE#TRPBF | LTC3121IDE#PBF | LTC3121IDE#TRPBF | |
|---|---|---|---|---|
| N | 1 | 2 | 3 | 4 |
| Package | 4x3 DFN-12 Package Outline Drawing | 4x3 DFN-12 Package Outline Drawing | 4x3 DFN-12 Package Outline Drawing | 4x3 DFN-12 Package Outline Drawing |
| Package Code | DE/UE | DE/UE | DE/UE | DE/UE |
| Package Index | 05-08-1695 | 05-08-1695 | 05-08-1695 | 05-08-1695 |
| Pin Count | 12 | 12 | 12 | 12 |
Parametrics
| Parameters / Models | LTC3121EDE#PBF | LTC3121EDE#TRPBF | LTC3121IDE#PBF | LTC3121IDE#TRPBF |
|---|---|---|---|---|
| Architecture | Constant Frequency Current Mode | Constant Frequency Current Mode | Constant Frequency Current Mode | Constant Frequency Current Mode |
| Demo Boards | DC2372A | DC2372A | DC2372A | DC2372A |
| Design Tools | LTspice File,LTpowerCAD File | LTspice File,LTpowerCAD File | LTspice File,LTpowerCAD File | LTspice File,LTpowerCAD File |
| Export Control | no | no | no | no |
| Features | Burst Mode, Output Disconnect, Resistor Set Frequency, External Synchronization | Burst Mode, Output Disconnect, Resistor Set Frequency, External Synchronization | Burst Mode, Output Disconnect, Resistor Set Frequency, External Synchronization | Burst Mode, Output Disconnect, Resistor Set Frequency, External Synchronization |
| Frequency, kHz | 3000 | 3000 | 3000 | 3000 |
| Frequency Adjust Range | Up to 3MHz | Up to 3MHz | Up to 3MHz | Up to 3MHz |
| Frequency Sync Range | Up to 3MHz | Up to 3MHz | Up to 3MHz | Up to 3MHz |
| Integrated Inductor | no | no | no | no |
| Ishutdown, µA | 0.01 | 0.01 | 0.01 | 0.01 |
| Isupply, mA | 0.025 | 0.025 | 0.025 | 0.025 |
| Monolithic | yes | yes | yes | yes |
| Number of Outputs | 1 | 1 | 1 | 1 |
| Operating Temperature Range, °C | 0 to 85 | 0 to 85 | -40 to 85 | -40 to 85 |
| Polyphase | no | no | no | no |
| Switch Current, A | 1.8 | 1.8 | 1.8 | 1.8 |
| Synchronous | yes | yes | yes | yes |
| Topology | Boost | Boost | Boost | Boost |
| Vin Max, V | 5.5 | 5.5 | 5.5 | 5.5 |
| Vin Min, V | 0.5 | 0.5 | 0.5 | 0.5 |
| Vin Min Startup, V | 1.7 | 1.7 | 1.7 | 1.7 |
| Vout Max, V | 15 | 15 | 15 | 15 |
| Vout Maximum | 15V | 15V | 15V | 15V |
| Vout Min, V | 2.2 | 2.2 | 2.2 | 2.2 |
| Vref Accuracy Over Temp, % | 1.9 | 1.9 | 1.9 | 1.9 |
| Vswitch Max, V | 18 | 18 | 18 | 18 |
Eco Plan
| LTC3121EDE#PBF | LTC3121EDE#TRPBF | LTC3121IDE#PBF | LTC3121IDE#TRPBF | |
|---|---|---|---|---|
| RoHS | Compliant | Compliant | Compliant | Compliant |
Model Line
Series: LTC3121 (4)
Manufacturer's Classification
- Power Management > Switching Regulator > Step-Up (Boost) Regulators > Micropower Boost | Internal Power Switch Boost
