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Texas Instruments LM5018 | Demoboard PMP21867
12-V / 100-A negative-to-positive synchronous buck-boost reference design for power amplifiers
Overview
| Topology | Buck-Boost Converter |
| Input voltage | -60 - -36 V |
| Output 1 | 14.5 V / 100 A |
| IC revision | 001 |
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 +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.
Features
- 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
Typical applications
- Active antenna system mMIMO (AAS)
More information
Products
| Order Code | Datasheet | Simulation | Downloads | Status | Product series | L (µH) | IRP,40K (A) | ISAT,10% (A) | ISAT,30% (A) | RDC max. (mΩ) | fres (MHz) | Samples | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | 7443640680 | SPEC | 8 files | Active i| Production is active. Expected lifetime: >10 years. | WE-HCF SMT High Current Inductor | 6.8 | 34.95 | 49.8 | 55 | 2.64 | 17 |
| Order Code | Datasheet | Simulation | |
|---|---|---|---|
| 7443640680 | SPEC |
| Samples |
|---|
| Order Code | Datasheet | Simulation | Downloads | Status | Product series | L (µH) | IRP,40K (A) | ISAT,10% (A) | ISAT,30% (A) | RDC max. (mΩ) | fres (MHz) | Samples |
|---|