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Details
| Topologie | Abwärts- und Aufwärtswandler |
| Eingangsspannung | 9-55 V |
| Ausgang 1 | 12 V / 6 A |
Beschreibung
Demonstration circuit 2931A is a buck-boost regulatorfeaturing the LTC®7878. The DC2931A operates from a 9V to 55V input voltage range and generates a 12V, 6A output. The LTC7878 has a precision voltage reference that can generate an output voltage with 1% tolerance over the full operating conditions. The 260kHz switching frequency operation results in a small and efficient circuit. The converter achieves over 97% efficiency with 6A load.The demonstration circuit can be easily modified to regulate output voltages from 1V to 70V.The DC2931A provides a high-performance, cost-effective solution for generating a 12V output. The LTC7878 data sheet gives a complete description of this part, its operation, and application information. Refer to it in conjunction with this demo manual.
Eigenschaften
- Single Inductor Architecture Allows VIN Above, Below or Equal to the Regulated VOUT
- Synchronous Rectification: Up to 98% Efficiency
- Wide VIN Voltage Range: 5V to 70V
- ±1% Output Voltage Accuracy: 1V ≤ VOUT ≤ 70V n DCR or RSENSE Current Sensing
- Peak Current Mode Control in Buck/Boost/BuckBoost Mode
- Programmable Input or Output Current Regulation n 7V NMOS Gate Drivers
- Phase-Lockable Frequency (100kHz to 600kHz)
- Multiphase/Multi-ICs Parallel Operation
- Selectable Continuous or Pulse-Skipping Mode Operation and Inductor Peak Current Limits
- Small 32-Lead 5mm × 5mm QFN Package
Typische Anwendungen
- Distributed DC Power or Battery Systems
- Industrial and Telecom Systems
Weiterführende Informationen
Artikeldaten
| Artikel Nr. | Datenblatt | Simulation | Downloads | Produktserie | C | Tol. C | VR (V (DC)) | Bauform | Betriebstemperatur | DF (%) | RISO | Keramiktyp | L (mm) | W (mm) | Fl (mm) | L (µH) | IRP,40K (A) | ISAT1 (A) | ISAT,30% (A) | RDC max. (mΩ) | Pins | Reihen | H (mm) | Gender | Typ | IR (A) | Verpackung | Muster | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | 885012206046 | SPEC | 8 Dateien | WCAP-CSGP MLCCs 16 V(DC) | 100 nF | ±10% | 16 | 0603 | -55 °C up to +125 °C | 3.5 | 5 GΩ | X7R Klasse II | 1.6 | 0.8 | 0.4 | – | – | – | – | – | – | – | 0.8 | – | – | – | 7" Tape & Reel | ||
 | 7443630420 | SPEC | 8 Dateien | WE-HCF SMT-Hochstrominduktivität | – | – | – | 2013 | -40 °C up to +125 °C | – | – | – | 20.8 | 20.5 | – | 4.2 | 27 | 34 | 38 | 3.34 | – | – | 13.5 | – | – | – | – | ||
 | 60800213421 | SPEC | – | 3 Dateien | WR-PHD 2.00 mm Jumper with Test Point | – | – | – | – | -25 °C up to +105 °C | – | 1000 MΩ | – | – | – | – | – | – | – | – | – | 2 | – | – | Jumper | – | 3 | Beutel | |
 | 62000311121 | SPEC | – | 6 Dateien | WR-PHD 2.00 mm THT Pin Header | – | – | – | – | -40 °C up to +105 °C | – | 1000 MΩ | – | 6 | – | – | – | – | – | – | – | 3 | Single | – | Pin Header | Gerade | 2 | Beutel |
| Artikel Nr. | Datenblatt | Simulation | |
|---|---|---|---|
| 885012206046 | SPEC | |
| 7443630420 | SPEC | |
| 60800213421 | SPEC | – |
| 62000311121 | SPEC | – |
| Muster |
|---|
| Artikel Nr. | Datenblatt | Simulation | Downloads | Produktserie | C | Tol. C | VR (V (DC)) | Bauform | Betriebstemperatur | DF (%) | RISO | Keramiktyp | L (mm) | W (mm) | Fl (mm) | L (µH) | IRP,40K (A) | ISAT1 (A) | ISAT,30% (A) | RDC max. (mΩ) | Pins | Reihen | H (mm) | Gender | Typ | IR (A) | Verpackung | Muster |
|---|