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IC manufacturers Texas Instruments

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reference designLM5018MRX/NOPB | Demoboard PMP21943

Texas Instruments LM5018MRX/NOPB | Demoboard PMP21943

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

Overview

TopologyBoost Converter
Input voltage-48 V
Output 148 V / 25 A
IC revisionA

Description

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.

Features

  • 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

Typical applications

  • Active antenna system mMIMO (AAS)

More information

Products

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Order Code
Data­sheet
Simu­lation
Downloads
Status
Product series
L(µH)
IRP,40K(A)
ISAT,10%(A)
ISAT,30%(A)
RDC max.(mΩ)
fres(MHz)
Wire Type
SamplesAvailability & Sample
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7443641500
SPECWE-HCF SMT High Current Inductor, 15 µH, 34.95 A
Simu­lation
Availability
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Downloads9 files

Status Activei| Production is active. Expected lifetime: >10 years.
Product seriesWE-HCF SMT High Current Inductor
Inductance15 µH
Performance Rated Current34.95 A
Saturation Current @ 10%22 A
Saturation Current @ 30%26 A
DC Resistance2.64 mΩ
Self Resonant Frequency11 MHz
Wire TypeFlat 
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