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Texas Instruments LM5018 | Demoboard PMP21867
12-V / 100-A negative-to-positive synchronous buck-boost reference design for power amplifiers
Details
| Topologie | Abwärts- und Aufwärtswandler |
| Eingangsspannung | -60 - -36 V |
| Ausgang 1 | 14.5 V / 100 A |
| IC-Revision | 001 |
Beschreibung
This reference design is a negative-to-positive synchronous buck-boost converter for power amplifier applications. The circuit is powered from the nominal -48-V system source to provide an output voltage of +12 V at 100 A. The design uses two dual synchronous boost controllers for 4-phase operation at a switching frequency of 100 kHz. Output voltage adjustment to +14.5 V is jumper selectable. 1- through 4-phase operation is also jumper selectable.
Eigenschaften
- Non-isolated inverting solution for higher power
- Excellent phase current sharing for balanced thermal performance
- Jumper selectable phase control
- Mounting option for bottom-side heat sink
- Jumper selectable output voltage control
Typische Anwendungen
- Active antenna system mMIMO (AAS)
Weiterführende Informationen
Artikeldaten
Artikel Nr. | Datenblatt | Simulation | Downloads | Status | Produktserie | L(µH) | IRP,40K(A) | ISAT,10%(A) | ISAT,30%(A) | RDC max.(mΩ) | fres(MHz) | Drahttype | Muster | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | WE-HCF SMT-Hochstrominduktivität, 6.8 µH, 34.95 A | Status Aktivi| Produktion ist aktiv. Erwartete Lebenszeit: >10 Jahre. | ProduktserieWE-HCF SMT-Hochstrominduktivität | Induktivität6.8 µH | Performance Nennstrom34.95 A | Sättigungsstrom 149.8 A | Sättigungsstrom @ 30%55 A | Gleichstromwiderstand2.64 mΩ | Eigenresonanzfrequenz17 MHz | DrahttypeFlach |