IC-Hersteller Texas Instruments

IC-Hersteller (103)

Texas Instruments LM5018MRX/NOPB | Demoboard PMP21943

48-V / 25-A negative-to-positive synchronous buck-boost reference design for power amplifiers

Details

TopologieAufwärtswandler
Eingangsspannung-48 V
Ausgang 148 V / 25 A
IC-RevisionA

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 +48 V at 25 A. The design uses two dual synchronous boost controllers for 4-phase operation at a switching frequency of 150 kHz. Output voltage adjustment to +30 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
  • Compact design for minimum solution size
  • 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, 15 µH, 34.95 A
Simu­lation
Status Aktivi| Produktion ist aktiv. Erwartete Lebenszeit: >10 Jahre.
Induktivität15 µH
Performance Nennstrom34.95 A
Sättigungsstrom 122 A
Sättigungsstrom @ 30%26 A
Gleichstromwiderstand2.64 mΩ
Eigenresonanzfrequenz11 MHz
DrahttypeFlach