Datasheet Linear Technology LT3641 — Datenblatt
| Hersteller | Linear Technology |
| Serie | LT3641 |
Dual Monolithic Buck Regulator mit Power-On Reset und Watchdog Timer
Datenblätter
Datasheet LT3641
PDF, 452 Kb, Sprache: en, Datei hochgeladen: Sep 18, 2017, Seiten: 28
Dual Monolithic Buck Regulator with Power-On Reset and Watchdog Timer
Dual Monolithic Buck Regulator with Power-On Reset and Watchdog Timer
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Preise
Verpackung
| LT3641EFE#PBF | LT3641EFE#TRPBF | LT3641EUFD#PBF | LT3641EUFD#TRPBF | LT3641HFE#PBF | LT3641HFE#TRPBF | LT3641IFE#PBF | LT3641IFE#TRPBF | LT3641IUFD#PBF | LT3641IUFD#TRPBF | |
|---|---|---|---|---|---|---|---|---|---|---|
| N | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 |
| Package | TSSOP-28 Paketumrisszeichnung | TSSOP-28 Paketumrisszeichnung | 4x5 QFN-28 Paketumrisszeichnung | 4x5 QFN-28 Paketumrisszeichnung | TSSOP-28 Paketumrisszeichnung | TSSOP-28 Paketumrisszeichnung | TSSOP-28 Paketumrisszeichnung | TSSOP-28 Paketumrisszeichnung | 4x5 QFN-28 Paketumrisszeichnung | 4x5 QFN-28 Paketumrisszeichnung |
| Package Code | FE | FE | UFD | UFD | FE | FE | FE | FE | UFD | UFD |
| Package Index | 05-08-1663 (EB) | 05-08-1663 (EB) | 05-08-1712 | 05-08-1712 | 05-08-1663 (EB) | 05-08-1663 (EB) | 05-08-1663 (EB) | 05-08-1663 (EB) | 05-08-1712 | 05-08-1712 |
| Pin Count | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 |
Parameter
| Parameters / Models | LT3641EFE#PBF | LT3641EFE#TRPBF | LT3641EUFD#PBF | LT3641EUFD#TRPBF | LT3641HFE#PBF | LT3641HFE#TRPBF | LT3641IFE#PBF | LT3641IFE#TRPBF | LT3641IUFD#PBF | LT3641IUFD#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 | Constant Frequency Current Mode | Constant Frequency Current Mode |
| Demo Boards | DC1727A | DC1727A | DC1727A | DC1727A | DC1727A | DC1727A | DC1727A | DC1727A | DC1727A | DC1727A |
| Design Tools | LTspice File | LTspice File | 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 | no | no |
| Features | Resistor Set Frequency, External Synchronization, Power On Reset, Watchdog Timer, Tracking, Power Good, Soft Start | Resistor Set Frequency, External Synchronization, Power On Reset, Watchdog Timer, Tracking, Power Good, Soft Start | Resistor Set Frequency, External Synchronization, Power On Reset, Watchdog Timer, Tracking, Power Good, Soft Start | Resistor Set Frequency, External Synchronization, Power On Reset, Watchdog Timer, Tracking, Power Good, Soft Start | Resistor Set Frequency, External Synchronization, Power On Reset, Watchdog Timer, Tracking, Power Good, Soft Start | Resistor Set Frequency, External Synchronization, Power On Reset, Watchdog Timer, Tracking, Power Good, Soft Start | Resistor Set Frequency, External Synchronization, Power On Reset, Watchdog Timer, Tracking, Power Good, Soft Start | Resistor Set Frequency, External Synchronization, Power On Reset, Watchdog Timer, Tracking, Power Good, Soft Start | Resistor Set Frequency, External Synchronization, Power On Reset, Watchdog Timer, Tracking, Power Good, Soft Start | Resistor Set Frequency, External Synchronization, Power On Reset, Watchdog Timer, Tracking, Power Good, Soft Start |
| Frequency, kHz | 2500 | 2500 | 2500 | 2500 | 2500 | 2500 | 2500 | 2500 | 2500 | 2500 |
| Frequency Adjust Range | 350kHz - 2.5MHz | 350kHz - 2.5MHz | 350kHz - 2.5MHz | 350kHz - 2.5MHz | 350kHz - 2.5MHz | 350kHz - 2.5MHz | 350kHz - 2.5MHz | 350kHz - 2.5MHz | 350kHz - 2.5MHz | 350kHz - 2.5MHz |
| Frequency Sync Range | 350kHz - 2.5MHz | 350kHz - 2.5MHz | 350kHz - 2.5MHz | 350kHz - 2.5MHz | 350kHz - 2.5MHz | 350kHz - 2.5MHz | 350kHz - 2.5MHz | 350kHz - 2.5MHz | 350kHz - 2.5MHz | 350kHz - 2.5MHz |
| Integrated Inductor | no | no | no | no | no | no | no | no | no | no |
| Ishutdown, µA | 0.1 | 0.1 | 0.1 | 0.1 | 0.1 | 0.1 | 0.1 | 0.1 | 0.1 | 0.1 |
| Isupply, mA | 0.275 | 0.275 | 0.275 | 0.275 | 0.275 | 0.275 | 0.275 | 0.275 | 0.275 | 0.275 |
| Max Phases | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 |
| Monolithic | yes | yes | yes | yes | yes | yes | yes | yes | yes | yes |
| Number of Outputs | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 |
| Operating Temperature Range, °C | 0 to 85 | 0 to 85 | 0 to 85 | 0 to 85 | -40 to 125 | -40 to 125 | -40 to 85 | -40 to 85 | -40 to 85 | -40 to 85 |
| Output Current, A | 1.3 | 1.3 | 1.3 | 1.3 | 1.3 | 1.3 | 1.3 | 1.3 | 1.3 | 1.3 |
| Output Current 2, A | 1.1 | 1.1 | 1.1 | 1.1 | 1.1 | 1.1 | 1.1 | 1.1 | 1.1 | 1.1 |
| Over Voltage Protection, V | 55 | 55 | 55 | 55 | 55 | 55 | 55 | 55 | 55 | 55 |
| Polyphase | no | no | no | no | no | no | no | no | no | no |
| Switch Current, A | 2.8 | 2.8 | 2.8 | 2.8 | 2.8 | 2.8 | 2.8 | 2.8 | 2.8 | 2.8 |
| Switch Current 2, A | 1.7 | 1.7 | 1.7 | 1.7 | 1.7 | 1.7 | 1.7 | 1.7 | 1.7 | 1.7 |
| Synchronous | yes | yes | yes | yes | yes | yes | yes | yes | yes | yes |
| Topology | Buck | Buck | Buck | Buck | Buck | Buck | Buck | Buck | Buck | Buck |
| Topology 1 | Buck | Buck | Buck | Buck | Buck | Buck | Buck | Buck | Buck | Buck |
| Topology 2 | Buck | Buck | Buck | Buck | Buck | Buck | Buck | Buck | Buck | Buck |
| Vin Max, V | 42 | 42 | 42 | 42 | 42 | 42 | 42 | 42 | 42 | 42 |
| Vin Min, V | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 |
| Vout Max, V | 40.97 | 40.97 | 40.97 | 40.97 | 40.97 | 40.97 | 40.97 | 40.97 | 40.97 | 40.97 |
| Vout Maximum | 0.97Vin | 0.97Vin | 0.97Vin | 0.97Vin | 0.97Vin | 0.97Vin | 0.97Vin | 0.97Vin | 0.97Vin | 0.97Vin |
| Vout Min, V | 1.265 | 1.265 | 1.265 | 1.265 | 1.265 | 1.265 | 1.265 | 1.265 | 1.265 | 1.265 |
| Vout Min 2, V | 0.6 | 0.6 | 0.6 | 0.6 | 0.6 | 0.6 | 0.6 | 0.6 | 0.6 | 0.6 |
| Vref Accuracy Over Temp, % | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 |
Öko-Plan
| LT3641EFE#PBF | LT3641EFE#TRPBF | LT3641EUFD#PBF | LT3641EUFD#TRPBF | LT3641HFE#PBF | LT3641HFE#TRPBF | LT3641IFE#PBF | LT3641IFE#TRPBF | LT3641IUFD#PBF | LT3641IUFD#TRPBF | |
|---|---|---|---|---|---|---|---|---|---|---|
| RoHS | Compliant | Compliant | Compliant | Compliant | Compliant | Compliant | Compliant | Compliant | Compliant | Compliant |
Modellreihe
Serie: LT3641 (10)
Herstellerklassifikation
- Power Management > Switching Regulator > Step-Down (Buck) Regulators > Multiple Output Buck | Internal Power Switch Buck | High Input Voltage Buck
- Space & Harsh Environment > Extended Temperature Plastic (H & MP) > Extended Temperature (H & MP) Switching Regulators