Datasheet Linear Technology LTC7124 — Datenblatt
| Hersteller | Linear Technology |
| Serie | LTC7124 |
17 V, doppelter synchroner 3,5-A-Abwärtsregler mit ultraniedrigem Ruhestrom
Datenblätter
Datasheet LTC7124
PDF, 1.7 Mb, Sprache: en, Datei hochgeladen: Oct 20, 2017, Seiten: 22
17V, Dual 3.5A Synchronous Step-Down Regulator with Ultralow Quiescent Current
17V, Dual 3.5A Synchronous Step-Down Regulator with Ultralow Quiescent Current
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Verpackung
| LTC7124EUDD#PBF | LTC7124EUDD#TRPBF | LTC7124IUDD#PBF | LTC7124IUDD#TRPBF | |
|---|---|---|---|---|
| N | 1 | 2 | 3 | 4 |
| Package | 3x5 UDD-24 Paketumrisszeichnung | 3x5 UDD-24 Paketumrisszeichnung | 3x5 UDD-24 Paketumrisszeichnung | 3x5 UDD-24 Paketumrisszeichnung |
| Package Code | UDD | UDD | UDD | UDD |
| Package Index | 05-08-1537 | 05-08-1537 | 05-08-1537 | 05-08-1537 |
| Pin Count | 24 | 24 | 24 | 24 |
Parameter
| Parameters / Models | LTC7124EUDD#PBF | LTC7124EUDD#TRPBF | LTC7124IUDD#PBF | LTC7124IUDD#TRPBF |
|---|---|---|---|---|
| Architecture | Constant Frequency Peak Current Mode | Constant Frequency Peak Current Mode | Constant Frequency Peak Current Mode | Constant Frequency Peak Current Mode |
| Demo Boards | DC2329A | DC2329A | DC2329A | DC2329A |
| Design Tools | LTspice Model,LTpowerCAD File | LTspice Model,LTpowerCAD File | LTspice Model,LTpowerCAD File | LTspice Model,LTpowerCAD File |
| Export Control | 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 |
| Frequency, kHz | 4000 | 4000 | 4000 | 4000 |
| Frequency Adjust Range | 500kHz - 4MHz | 500kHz - 4MHz | 500kHz - 4MHz | 500kHz - 4MHz |
| Frequency Sync Range | 500kHz - 4MHz | 500kHz - 4MHz | 500kHz - 4MHz | 500kHz - 4MHz |
| Integrated Inductor | no | no | no | no |
| Ishutdown, µA | 0.1 | 0.1 | 0.1 | 0.1 |
| Isupply, mA | 0.0055 | 0.0055 | 0.0055 | 0.0055 |
| Monolithic | yes | yes | yes | yes |
| Number of Outputs | 2 | 2 | 2 | 2 |
| Operating Temperature Range, °C | 0 to 85 | 0 to 85 | -40 to 85 | -40 to 85 |
| Output Current, A | 3.5 | 3.5 | 3.5 | 3.5 |
| Output Current 2, A | 3.5 | 3.5 | 3.5 | 3.5 |
| Polyphase | yes | yes | yes | yes |
| Switch Current, A | 5 | 5 | 5 | 5 |
| Switch Current 2, A | 5 | 5 | 5 | 5 |
| Synchronous | yes | yes | yes | yes |
| Topology | Buck | Buck | Buck | Buck |
| Topology 1 | Buck | Buck | Buck | Buck |
| Topology 2 | Buck | Buck | Buck | Buck |
| Vin Max, V | 17 | 17 | 17 | 17 |
| Vin Min, V | 3.1 | 3.1 | 3.1 | 3.1 |
| Vout Max, V | 16.83 | 16.83 | 16.83 | 16.83 |
| Vout Max 2, V | 16.83 | 16.83 | 16.83 | 16.83 |
| Vout Maximum | 0.99Vin | 0.99Vin | 0.99Vin | 0.99Vin |
| Vout Min, V | 0.6 | 0.6 | 0.6 | 0.6 |
| Vout Min 2, V | 0.6 | 0.6 | 0.6 | 0.6 |
| Vref Accuracy Over Temp, % | 1 | 1 | 1 | 1 |
Öko-Plan
| LTC7124EUDD#PBF | LTC7124EUDD#TRPBF | LTC7124IUDD#PBF | LTC7124IUDD#TRPBF | |
|---|---|---|---|---|
| RoHS | Compliant | Compliant | Compliant | Compliant |
Modellreihe
Serie: LTC7124 (4)
Herstellerklassifikation
- Power Management > Switching Regulator > Step-Down (Buck) Regulators > Multiple Output Buck | Micropower Buck Regulators | Internal Power Switch Buck