Datasheet Linear Technology LTC7800 — Datenblatt
| Hersteller | Linear Technology |
| Serie | LTC7800 |
Synchroner Hochfrequenz-Abwärtsregler mit niedrigem IQ, 60 V und hoher Frequenz
Datenblätter
Datasheet LTC7800
PDF, 1.3 Mb, Sprache: en, Datei hochgeladen: Jun 14, 2017, Seiten: 32
Low IQ , 60V, High Frequency Synchronous Step-Down Controller
Low IQ , 60V, High Frequency Synchronous Step-Down Controller
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Preise
Verpackung
| LTC7800EUDC#PBF | LTC7800EUDC#TRPBF | LTC7800HUDC#PBF | LTC7800HUDC#TRPBF | LTC7800IUDC#PBF | LTC7800IUDC#TRPBF | |
|---|---|---|---|---|---|---|
| N | 1 | 2 | 3 | 4 | 5 | 6 |
| Package | 3x4 QFN-20 Paketumrisszeichnung | 3x4 QFN-20 Paketumrisszeichnung | 3x4 QFN-20 Paketumrisszeichnung | 3x4 QFN-20 Paketumrisszeichnung | 3x4 QFN-20 Paketumrisszeichnung | 3x4 QFN-20 Paketumrisszeichnung |
| Package Code | UDC | UDC | UDC | UDC | UDC | UDC |
| Package Index | 05-08-1742 | 05-08-1742 | 05-08-1742 | 05-08-1742 | 05-08-1742 | 05-08-1742 |
| Pin Count | 20 | 20 | 20 | 20 | 20 | 20 |
Parameter
| Parameters / Models | LTC7800EUDC#PBF | LTC7800EUDC#TRPBF | LTC7800HUDC#PBF | LTC7800HUDC#TRPBF | LTC7800IUDC#PBF | LTC7800IUDC#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 | DC2736A | DC2736A | DC2736A | DC2736A | DC2736A | DC2736A |
| Design Tools | LTspice Model,LTpowerCAD Model | LTspice Model,LTpowerCAD Model | LTspice Model,LTpowerCAD Model | LTspice Model,LTpowerCAD Model | LTspice Model,LTpowerCAD Model | LTspice Model,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 | 2250 | 2250 | 2250 | 2250 | 2250 | 2250 |
| Frequency Adjust Range | 320kHz - 2.25MHz | 320kHz - 2.25MHz | 320kHz - 2.25MHz | 320kHz - 2.25MHz | 320kHz - 2.25MHz | 320kHz - 2.25MHz |
| Frequency Sync Range | 320kHz - 2.25MHz | 320kHz - 2.25MHz | 320kHz - 2.25MHz | 320kHz - 2.25MHz | 320kHz - 2.25MHz | 320kHz - 2.25MHz |
| Integrated Inductor | no | no | no | no | no | no |
| Ishutdown, µA | 14 | 14 | 14 | 14 | 14 | 14 |
| Isupply, mA | 0.05 | 0.05 | 0.05 | 0.05 | 0.05 | 0.05 |
| Monolithic | no | no | no | no | no | no |
| 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 | 20 | 20 | 20 | 20 | 20 | 20 |
| Polyphase | no | no | no | no | no | no |
| Sense Resistor | DCR, Rsense | DCR, Rsense | DCR, Rsense | DCR, Rsense | DCR, Rsense | DCR, Rsense |
| Switch Current, A | 25 | 25 | 25 | 25 | 25 | 25 |
| Synchronous | yes | yes | yes | yes | yes | yes |
| Topology | Buck | Buck | Buck | Buck | Buck | Buck |
| Topology 1 | Buck | Buck | Buck | Buck | Buck | Buck |
| Vin Max, V | 60 | 60 | 60 | 60 | 60 | 60 |
| Vin Min, V | 4 | 4 | 4 | 4 | 4 | 4 |
| Vin Min Startup, V | 4 | 4 | 4 | 4 | 4 | 4 |
| Vout Max, V | 24 | 24 | 24 | 24 | 24 | 24 |
| Vout Maximum | 24V | 24V | 24V | 24V | 24V | 24V |
| Vout Min, V | 0.8 | 0.8 | 0.8 | 0.8 | 0.8 | 0.8 |
| Vref Accuracy Over Temp, % | 1.5 | 1.5 | 1.5 | 1.5 | 1.5 | 1.5 |
Öko-Plan
| LTC7800EUDC#PBF | LTC7800EUDC#TRPBF | LTC7800HUDC#PBF | LTC7800HUDC#TRPBF | LTC7800IUDC#PBF | LTC7800IUDC#TRPBF | |
|---|---|---|---|---|---|---|
| RoHS | Compliant | Compliant | Compliant | Compliant | Compliant | Compliant |
Modellreihe
Serie: LTC7800 (6)
Herstellerklassifikation
- Power Management > Switching Regulator > Step-Down (Buck) Regulators > Micropower Buck Regulators | High Input Voltage Buck | External Power Switch Buck Controllers
- Space & Harsh Environment > Extended Temperature Plastic (H & MP) > Extended Temperature (H & MP) Switching Regulators