Datasheet Linear Technology LT3431
| Manufacturer | Linear Technology |
| Series | LT3431 |
High Voltage, 3A, 500kHz Step-Down Switching Regulator
Datasheets
Datasheet LT3431
PDF, 263 Kb, Language: en, File uploaded: Sep 18, 2017, Pages: 28
High Voltage, 3A, 500kHz Step-Down Switching Regulator
High Voltage, 3A, 500kHz Step-Down Switching Regulator
Extract from the document
Prices
Packaging
| LT3431EFE#PBF | LT3431EFE#TRPBF | LT3431IFE#PBF | LT3431IFE#TRPBF | |
|---|---|---|---|---|
| N | 1 | 2 | 3 | 4 |
| Package | TSSOP-16 Package Outline Drawing | TSSOP-16 Package Outline Drawing | TSSOP-16 Package Outline Drawing | TSSOP-16 Package Outline Drawing |
| Package Code | FE | FE | FE | FE |
| Package Index | 05-08-1663 (BB) | 05-08-1663 (BB) | 05-08-1663 (BB) | 05-08-1663 (BB) |
| Pin Count | 16 | 16 | 16 | 16 |
Parametrics
| Parameters / Models | LT3431EFE#PBF | LT3431EFE#TRPBF | LT3431IFE#PBF | LT3431IFE#TRPBF |
|---|---|---|---|---|
| Architecture | Constant Frequency Current Mode | Constant Frequency Current Mode | Constant Frequency Current Mode | Constant Frequency Current Mode |
| Demo Boards | DC549A | DC549A | DC549A | DC549A |
| Design Tools | LTspice File,LTpowerCAD Model | LTspice File,LTpowerCAD Model | LTspice File,LTpowerCAD Model | LTspice File,LTpowerCAD Model |
| Export Control | no | no | no | no |
| Features | External Synchronization | External Synchronization | External Synchronization | External Synchronization |
| Frequency, kHz | 500 | 500 | 500 | 500 |
| Frequency Sync Range | 580kHz - 700kHz | 580kHz - 700kHz | 580kHz - 700kHz | 580kHz - 700kHz |
| Integrated Inductor | no | no | no | no |
| Ishutdown, µA | 30 | 30 | 30 | 30 |
| Isupply, mA | 2.5 | 2.5 | 2.5 | 2.5 |
| Max Phases | 1 | 1 | 1 | 1 |
| 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 |
| Output Current, A | 2.75 | 2.75 | 2.75 | 2.75 |
| Polyphase | no | no | no | no |
| Switch Current, A | 5 | 5 | 5 | 5 |
| Synchronous | no | no | no | no |
| Topology | Buck, Inverting | Buck, Inverting | Buck, Inverting | Buck, Inverting |
| Vin Max, V | 60 | 60 | 60 | 60 |
| Vin Min, V | 5.5 | 5.5 | 5.5 | 5.5 |
| Vout Max, V | 48 | 48 | 48 | 48 |
| Vout Maximum | .80VIN | .80VIN | .80VIN | .80VIN |
| Vout Min, V | 1.2 | 1.2 | 1.2 | 1.2 |
| Vswitch Max, V | 35 | 35 | 35 | 35 |
Eco Plan
| LT3431EFE#PBF | LT3431EFE#TRPBF | LT3431IFE#PBF | LT3431IFE#TRPBF | |
|---|---|---|---|---|
| RoHS | Compliant | Compliant | Compliant | Compliant |
Design Notes
- Efficient Dual Polarity Output Converter Fits into Tight Spaces &mdash DN318PDF, 82 Kb, File published: Aug 2, 2003Extract from the document
Model Line
Series: LT3431 (4)
Manufacturer's Classification
- Power Management > Switching Regulator > Step-Down (Buck) Regulators > Internal Power Switch Buck | High Input Voltage Buck
