Datasheet Linear Technology LTC3879
| Manufacturer | Linear Technology |
| Series | LTC3879 |
Fast, Wide Operating Range No RSENSE Step-Down Controller
Datasheets
Datasheet LTC3879
PDF, 314 Kb, Language: en, File uploaded: Sep 24, 2017, Pages: 28
Fast, Wide Operating Range No RSENSE Step-Down Controller
Fast, Wide Operating Range No RSENSE Step-Down Controller
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Prices
Packaging
| LTC3879EMSE#PBF | LTC3879EMSE#TRPBF | LTC3879EUD#PBF | LTC3879EUD#TRPBF | LTC3879IMSE#PBF | LTC3879IMSE#TRPBF | LTC3879IUD#PBF | LTC3879IUD#TRPBF | |
|---|---|---|---|---|---|---|---|---|
| N | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 |
| Package | MS-16E Package Outline Drawing | MS-16E Package Outline Drawing | 3x3 QFN-16 Package Outline Drawing | 3x3 QFN-16 Package Outline Drawing | MS-16E Package Outline Drawing | MS-16E Package Outline Drawing | 3x3 QFN-16 Package Outline Drawing | 3x3 QFN-16 Package Outline Drawing |
| Package Code | MSE | MSE | UD | UD | MSE | MSE | UD | UD |
| Package Index | 05-08-1667 | 05-08-1667 | 05-08-1700 | 05-08-1700 | 05-08-1667 | 05-08-1667 | 05-08-1700 | 05-08-1700 |
| Pin Count | 16 | 16 | 16 | 16 | 16 | 16 | 16 | 16 |
Parametrics
| Parameters / Models | LTC3879EMSE#PBF | LTC3879EMSE#TRPBF | LTC3879EUD#PBF | LTC3879EUD#TRPBF | LTC3879IMSE#PBF | LTC3879IMSE#TRPBF | LTC3879IUD#PBF | LTC3879IUD#TRPBF |
|---|---|---|---|---|---|---|---|---|
| Architecture | Constant On-Time Valley Current Mode | Constant On-Time Valley Current Mode | Constant On-Time Valley Current Mode | Constant On-Time Valley Current Mode | Constant On-Time Valley Current Mode | Constant On-Time Valley Current Mode | Constant On-Time Valley Current Mode | Constant On-Time Valley Current Mode |
| Demo Boards | DC1289A,DC1345A | DC1289A,DC1345A | DC1289A,DC1345A | DC1289A,DC1345A | DC1289A,DC1345A | DC1289A,DC1345A | DC1289A,DC1345A | DC1289A,DC1345A |
| Design Tools | LTspice File | LTspice File | LTspice File | LTspice File | LTspice File | LTspice File | LTspice File | LTspice File |
| Export Control | no | no | no | no | no | no | no | no |
| Features | No Rsense, Tracking, Power Good, Resistor Set Frequency | No Rsense, Tracking, Power Good, Resistor Set Frequency | No Rsense, Tracking, Power Good, Resistor Set Frequency | No Rsense, Tracking, Power Good, Resistor Set Frequency | No Rsense, Tracking, Power Good, Resistor Set Frequency | No Rsense, Tracking, Power Good, Resistor Set Frequency | No Rsense, Tracking, Power Good, Resistor Set Frequency | No Rsense, Tracking, Power Good, Resistor Set Frequency |
| Frequency, kHz | 2000 | 2000 | 2000 | 2000 | 2000 | 2000 | 2000 | 2000 |
| Frequency Adjust Range | Up to 2MHz | Up to 2MHz | Up to 2MHz | Up to 2MHz | Up to 2MHz | Up to 2MHz | Up to 2MHz | Up to 2MHz |
| Integrated Inductor | no | no | no | no | no | no | no | no |
| Ishutdown, µA | 18 | 18 | 18 | 18 | 18 | 18 | 18 | 18 |
| Isupply, mA | 1.35 | 1.35 | 1.35 | 1.35 | 1.35 | 1.35 | 1.35 | 1.35 |
| Max Phases | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 |
| 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 |
| Output Current, A | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 |
| Polyphase | no | no | no | no | no | no | no | no |
| Sense Resistor | None | None | None | None | None | None | None | None |
| Switch Current, A | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 |
| Synchronous | yes | yes | yes | yes | yes | yes | yes | yes |
| Topology | Buck | Buck | Buck | Buck | Buck | Buck | Buck | Buck |
| Vin Max, V | 38 | 38 | 38 | 38 | 38 | 38 | 38 | 38 |
| Vin Min, V | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 |
| Vout Max, V | 34.2 | 34.2 | 34.2 | 34.2 | 34.2 | 34.2 | 34.2 | 34.2 |
| Vout Maximum | .9Vin | .9Vin | .9Vin | .9Vin | .9Vin | .9Vin | .9Vin | .9Vin |
| Vout Min, V | 0.6 | 0.6 | 0.6 | 0.6 | 0.6 | 0.6 | 0.6 | 0.6 |
| Vref Accuracy Over Temp, % | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 |
Eco Plan
| LTC3879EMSE#PBF | LTC3879EMSE#TRPBF | LTC3879EUD#PBF | LTC3879EUD#TRPBF | LTC3879IMSE#PBF | LTC3879IMSE#TRPBF | LTC3879IUD#PBF | LTC3879IUD#TRPBF | |
|---|---|---|---|---|---|---|---|---|
| RoHS | Compliant | Compliant | Compliant | Compliant | Compliant | Compliant | Compliant | Compliant |
Model Line
Series: LTC3879 (8)
Manufacturer's Classification
- Power Management > Switching Regulator > Step-Down (Buck) Regulators > High Input Voltage Buck | External Power Switch Buck Controllers
