Datasheet Linear Technology LT8711
| Manufacturer | Linear Technology |
| Series | LT8711 |
Micropower Synchronous Multitopology Controller with 42V Input Capability
Datasheets
LT8711 - Micropower Synchronous Multitopology Controller with 42V Input Capability
PDF, 1.4 Mb, File uploaded: Sep 20, 2017
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Packaging
| LT8711EFE#PBF | LT8711EFE#TRPBF | LT8711EUDC#PBF | LT8711EUDC#TRPBF | LT8711IFE#PBF | LT8711IFE#TRPBF | LT8711IUDC#PBF | LT8711IUDC#TRPBF | |
|---|---|---|---|---|---|---|---|---|
| N | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 |
| Package | TSSOP-20 Package Outline Drawing | TSSOP-20 Package Outline Drawing | 3x4 QFN-20 Package Outline Drawing | 3x4 QFN-20 Package Outline Drawing | TSSOP-20 Package Outline Drawing | TSSOP-20 Package Outline Drawing | 3x4 QFN-20 Package Outline Drawing | 3x4 QFN-20 Package Outline Drawing |
| Package Code | FE | FE | UDC | UDC | FE | FE | UDC | UDC |
| Package Index | 05-08-1663 (CB) | 05-08-1663 (CB) | 05-08-1742 | 05-08-1742 | 05-08-1663 (CB) | 05-08-1663 (CB) | 05-08-1742 | 05-08-1742 |
| Pin Count | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 |
Parametrics
| Parameters / Models | LT8711EFE#PBF | LT8711EFE#TRPBF | LT8711EUDC#PBF | LT8711EUDC#TRPBF | LT8711IFE#PBF | LT8711IFE#TRPBF | LT8711IUDC#PBF | LT8711IUDC#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 | Constant Frequency Current Mode | Constant Frequency Current Mode |
| Demo Boards | DC2234A | DC2234A | DC2234A | DC2234A | DC2234A | DC2234A | DC2234A | DC2234A |
| Design Tools | LTspice Model | LTspice Model | LTspice Model | LTspice Model | LTspice Model | LTspice Model | LTspice Model | LTspice Model |
| Export Control | no | no | no | no | no | no | no | no |
| Features | Burst Mode, 100% Duty Cycle, Resistor Set Frequency, External Synchronization | Burst Mode, 100% Duty Cycle, Resistor Set Frequency, External Synchronization | Burst Mode, 100% Duty Cycle, Resistor Set Frequency, External Synchronization | Burst Mode, 100% Duty Cycle, Resistor Set Frequency, External Synchronization | Burst Mode, 100% Duty Cycle, Resistor Set Frequency, External Synchronization | Burst Mode, 100% Duty Cycle, Resistor Set Frequency, External Synchronization | Burst Mode, 100% Duty Cycle, Resistor Set Frequency, External Synchronization | Burst Mode, 100% Duty Cycle, Resistor Set Frequency, External Synchronization |
| Frequency, kHz | 750 | 750 | 750 | 750 | 750 | 750 | 750 | 750 |
| Frequency Adjust Range | 100kHz - 750kHz | 100kHz - 750kHz | 100kHz - 750kHz | 100kHz - 750kHz | 100kHz - 750kHz | 100kHz - 750kHz | 100kHz - 750kHz | 100kHz - 750kHz |
| Frequency Sync Range | 100kHz - 750kHz | 100kHz - 750kHz | 100kHz - 750kHz | 100kHz - 750kHz | 100kHz - 750kHz | 100kHz - 750kHz | 100kHz - 750kHz | 100kHz - 750kHz |
| Integrated Inductor | no | no | no | no | no | no | no | no |
| Ishutdown, µA | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 |
| Isupply, mA | 0.015 | 0.015 | 0.015 | 0.015 | 0.015 | 0.015 | 0.015 | 0.015 |
| Monolithic | no | no | no | no | no | no | no | no |
| Number of Outputs | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 |
| Operating Temperature Range, °C | 0 to 85 | 0 to 85 | 0 to 85 | 0 to 85 | -40 to 85 | -40 to 85 | -40 to 85 | -40 to 85 |
| Sense Resistor | Rsense | Rsense | Rsense | Rsense | Rsense | Rsense | Rsense | Rsense |
| Switch Current, A | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 |
| Synchronous | yes | yes | yes | yes | yes | yes | yes | yes |
| Topology | Buck, Boost, Sepic, Zeta, Buck-Boost | Buck, Boost, Sepic, Zeta, Buck-Boost | Buck, Boost, Sepic, Zeta, Buck-Boost | Buck, Boost, Sepic, Zeta, Buck-Boost | Buck, Boost, Sepic, Zeta, Buck-Boost | Buck, Boost, Sepic, Zeta, Buck-Boost | Buck, Boost, Sepic, Zeta, Buck-Boost | Buck, Boost, Sepic, Zeta, Buck-Boost |
| Topology 1 | Buck, Boost, Sepic, Zeta, Buck-Boost | Buck, Boost, Sepic, Zeta, Buck-Boost | Buck, Boost, Sepic, Zeta, Buck-Boost | Buck, Boost, Sepic, Zeta, Buck-Boost | Buck, Boost, Sepic, Zeta, Buck-Boost | Buck, Boost, Sepic, Zeta, Buck-Boost | Buck, Boost, Sepic, Zeta, Buck-Boost | Buck, Boost, Sepic, Zeta, Buck-Boost |
| Vin Max, V | 42 | 42 | 42 | 42 | 42 | 42 | 42 | 42 |
| Vin Min, V | 4.5 | 4.5 | 4.5 | 4.5 | 4.5 | 4.5 | 4.5 | 4.5 |
| Vout Max, V | 42 | 42 | 42 | 42 | 42 | 42 | 42 | 42 |
| Vout Min, V | 0.8 | 0.8 | 0.8 | 0.8 | 0.8 | 0.8 | 0.8 | 0.8 |
| Vref Accuracy Over Temp, % | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 |
| Vswitch Max, V | 42 | 42 | 42 | 42 | 42 | 42 | 42 | 42 |
Eco Plan
| LT8711EFE#PBF | LT8711EFE#TRPBF | LT8711EUDC#PBF | LT8711EUDC#TRPBF | LT8711IFE#PBF | LT8711IFE#TRPBF | LT8711IUDC#PBF | LT8711IUDC#TRPBF | |
|---|---|---|---|---|---|---|---|---|
| RoHS | Compliant | Compliant | Compliant | Compliant | Compliant | Compliant | Compliant | Compliant |
Model Line
Series: LT8711 (8)
Manufacturer's Classification
- Power Management > Switching Regulator > Buck-Boost Regulators > External Power Switch Buck-Boost
- Power Management > Switching Regulator > Step-Down (Buck) Regulators > External Power Switch Buck Controllers | Micropower Buck Regulators
- Power Management > Switching Regulator > Step-Up (Boost) Regulators > External Power Switch Boost
- Power Management > Switching Regulator > SEPIC Regulators