Datasheet Linear Technology LT3844
| Manufacturer | Linear Technology |
| Series | LT3844 |
High Voltage, Current Mode Switching Regulator Controller with Programmable Operating Frequency
Datasheets
Datasheet LT3844
PDF, 292 Kb, Language: en, File uploaded: Sep 19, 2017, Pages: 26
High Voltage, Current Mode Switching Regulator Controller with Programmable Operating Frequency
High Voltage, Current Mode Switching Regulator Controller with Programmable Operating Frequency
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Prices
Packaging
| LT3844EFE#PBF | LT3844EFE#TRPBF | LT3844IFE#PBF | LT3844IFE#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 (BC) | 05-08-1663 (BC) | 05-08-1663 (BC) | 05-08-1663 (BC) |
| Pin Count | 16 | 16 | 16 | 16 |
Parametrics
| Parameters / Models | LT3844EFE#PBF | LT3844EFE#TRPBF | LT3844IFE#PBF | LT3844IFE#TRPBF |
|---|---|---|---|---|
| Architecture | Constant Frequency Current Mode | Constant Frequency Current Mode | Constant Frequency Current Mode | Constant Frequency Current Mode |
| Demo Boards | DC974A | DC974A | DC974A | DC974A |
| 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 | Burst Mode, Resistor Set Frequency, External Synchronization | Burst Mode, Resistor Set Frequency, External Synchronization | Burst Mode, Resistor Set Frequency, External Synchronization | Burst Mode, Resistor Set Frequency, External Synchronization |
| Frequency, kHz | 600 | 600 | 600 | 600 |
| Frequency Adjust Range | 100kHz - 500kHz | 100kHz - 500kHz | 100kHz - 500kHz | 100kHz - 500kHz |
| Frequency Sync Range | 100kHz - 600kHz | 100kHz - 600kHz | 100kHz - 600kHz | 100kHz - 600kHz |
| Integrated Inductor | no | no | no | no |
| Ishutdown, µA | 10 | 10 | 10 | 10 |
| Isupply, mA | 0.12 | 0.12 | 0.12 | 0.12 |
| Max Phases | 1 | 1 | 1 | 1 |
| Monolithic | no | no | no | no |
| 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 | 5 | 5 | 5 | 5 |
| Polyphase | no | no | no | no |
| Sense Resistor | Rsense | Rsense | Rsense | Rsense |
| Switch Current, A | 5 | 5 | 5 | 5 |
| Synchronous | no | no | no | no |
| Topology | Buck, Boost, Inverting, Sepic | Buck, Boost, Inverting, Sepic | Buck, Boost, Inverting, Sepic | Buck, Boost, Inverting, Sepic |
| Vin Max, V | 60 | 60 | 60 | 60 |
| Vin Min, V | 4 | 4 | 4 | 4 |
| Vin Min Startup, V | 4 | 4 | 4 | 4 |
| Vout Max, V | 36 | 36 | 36 | 36 |
| Vout Maximum | 36V | 36V | 36V | 36V |
| Vout Min, V | 1.231 | 1.231 | 1.231 | 1.231 |
| Vref Accuracy Over Temp, % | 1.3 | 1.3 | 1.3 | 1.3 |
| Vswitch Max, V | 65 | 65 | 65 | 65 |
Eco Plan
| LT3844EFE#PBF | LT3844EFE#TRPBF | LT3844IFE#PBF | LT3844IFE#TRPBF | |
|---|---|---|---|---|
| RoHS | Compliant | Compliant | Compliant | Compliant |
Model Line
Series: LT3844 (4)
Manufacturer's Classification
- Power Management > Switching Regulator > Step-Down (Buck) Regulators > High Input Voltage Buck | External Power Switch Buck Controllers
- Power Management > Switching Regulator > Step-Up (Boost) Regulators > External Power Switch Boost
- Power Management > Switching Regulator > Inverting Regulators | SEPIC Regulators
