Datasheet Linear Technology LT3975
| Manufacturer | Linear Technology |
| Series | LT3975 |
42V, 2.5A, 2MHz Step-Down Switching Regulator with 2.7µA Quiescent Current
Datasheets
Datasheet LT3975
PDF, 295 Kb, Language: en, File uploaded: Sep 19, 2017, Pages: 24
42V, 2.5A, 2MHz Step-Down Switching Regulator with 2.7µA Quiescent Current
42V, 2.5A, 2MHz Step-Down Switching Regulator with 2.7µA Quiescent Current
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Prices
Packaging
| LT3975EMSE#PBF | LT3975EMSE#TRPBF | LT3975HMSE#PBF | LT3975HMSE#TRPBF | LT3975IMSE#PBF | LT3975IMSE#TRPBF | |
|---|---|---|---|---|---|---|
| N | 1 | 2 | 3 | 4 | 5 | 6 |
| Package | MS-16E Package Outline Drawing | MS-16E Package Outline Drawing | MS-16E Package Outline Drawing | MS-16E Package Outline Drawing | MS-16E Package Outline Drawing | MS-16E Package Outline Drawing |
| Package Code | MSE | MSE | MSE | MSE | MSE | MSE |
| Package Index | 05-08-1667 | 05-08-1667 | 05-08-1667 | 05-08-1667 | 05-08-1667 | 05-08-1667 |
| Pin Count | 16 | 16 | 16 | 16 | 16 | 16 |
Parametrics
| Parameters / Models | LT3975EMSE#PBF | LT3975EMSE#TRPBF | LT3975HMSE#PBF | LT3975HMSE#TRPBF | LT3975IMSE#PBF | LT3975IMSE#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 |
| Demo Boards | DC1736A | DC1736A | DC1736A | DC1736A | DC1736A | DC1736A |
| Design Tools | LTspice File,LTpowerCAD Model | LTspice File,LTpowerCAD Model | LTspice File,LTpowerCAD Model | LTspice File,LTpowerCAD Model | LTspice File,LTpowerCAD Model | LTspice File,LTpowerCAD Model |
| Export Control | no | no | no | no | no | no |
| Features | Burst Mode, Resistor Set Frequency, External Synchronization, Power Good | Burst Mode, Resistor Set Frequency, External Synchronization, Power Good | Burst Mode, Resistor Set Frequency, External Synchronization, Power Good | Burst Mode, Resistor Set Frequency, External Synchronization, Power Good | Burst Mode, Resistor Set Frequency, External Synchronization, Power Good | Burst Mode, Resistor Set Frequency, External Synchronization, Power Good |
| Frequency, kHz | 2000 | 2000 | 2000 | 2000 | 2000 | 2000 |
| Frequency Adjust Range | 200kHz - 2MHz | 200kHz - 2MHz | 200kHz - 2MHz | 200kHz - 2MHz | 200kHz - 2MHz | 200kHz - 2MHz |
| Frequency Sync Range | 250kHz - 2MHz | 250kHz - 2MHz | 250kHz - 2MHz | 250kHz - 2MHz | 250kHz - 2MHz | 250kHz - 2MHz |
| Integrated Inductor | no | no | no | no | no | no |
| Ishutdown, µA | 0.7 | 0.7 | 0.7 | 0.7 | 0.7 | 0.7 |
| Isupply, mA | 0.0016 | 0.0016 | 0.0016 | 0.0016 | 0.0016 | 0.0016 |
| Max Phases | 1 | 1 | 1 | 1 | 1 | 1 |
| Monolithic | yes | yes | yes | yes | yes | yes |
| Number of Outputs | 1 | 1 | 1 | 1 | 1 | 1 |
| Operating Temperature Range, °C | 0 to 85 | 0 to 85 | -40 to 125 | -40 to 125 | -40 to 85 | -40 to 85 |
| Output Current, A | 2.5 | 2.5 | 2.5 | 2.5 | 2.5 | 2.5 |
| Polyphase | no | no | no | no | no | no |
| Switch Current, A | 5.4 | 5.4 | 5.4 | 5.4 | 5.4 | 5.4 |
| Synchronous | no | no | no | no | no | no |
| Topology | Buck | Buck | Buck | Buck | Buck | Buck |
| Vin Max, V | 42 | 42 | 42 | 42 | 42 | 42 |
| Vin Min, V | 4 | 4 | 4 | 4 | 4 | 4 |
| Vout Max, V | 40.74 | 40.74 | 40.74 | 40.74 | 40.74 | 40.74 |
| Vout Maximum | 0.97Vin | 0.97Vin | 0.97Vin | 0.97Vin | 0.97Vin | 0.97Vin |
| Vout Min, V | 1.197 | 1.197 | 1.197 | 1.197 | 1.197 | 1.197 |
| Vswitch Max, V | 42 | 42 | 42 | 42 | 42 | 42 |
Eco Plan
| LT3975EMSE#PBF | LT3975EMSE#TRPBF | LT3975HMSE#PBF | LT3975HMSE#TRPBF | LT3975IMSE#PBF | LT3975IMSE#TRPBF | |
|---|---|---|---|---|---|---|
| RoHS | Compliant | Compliant | Compliant | Compliant | Compliant | Compliant |
Model Line
Series: LT3975 (6)
Manufacturer's Classification
- Power Management > Switching Regulator > Step-Down (Buck) Regulators > Micropower Buck Regulators | Internal Power Switch Buck | High Input Voltage Buck
- Space & Harsh Environment > Extended Temperature Plastic (H & MP) > Extended Temperature (H & MP) Switching Regulators
