Hi folks,
I need to generate a 20 V, 3 A output (≈60 W) from a 10–30 V input rail and I’m trying to keep the design as compact and cost-effective as possible. I’m torn between two solutions:
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LTM8054 µModule
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Fully integrated power stage + controller + passives
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Handles up to ~75 W
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Small footprint but costs around $50
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MAX26240
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High-frequency boost controller with integrated MOSFET
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Requires a few external inductors, diodes, and capacitors
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Non-BGA package makes hand-soldering easier
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Only about $7 in single-unit quantities
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The price difference is huge, and the MAX26240’s non-BGA package plus minimal extra components look very attractive—if it really can deliver 20 V @ 3 A. But I’m worried:
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Integrated MOSFET capability: Can the MAX26240’s built-in switch really handle ~60 W continuously, or will thermal and R<sub>DS(on)</sub> limitations kill efficiency/require heavy heatsinking?
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Hidden trade-offs: Are there layout or EMI headaches, worse dynamic response, or other gotchas compared to a µModule solution?
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Feature gaps vs. LTM8054: Apart from price and package, what major differences in protections, efficiency, external component count, or thermal performance should I be aware of?
Has anyone used the MAX26240 (or similar controllers) in a 50–75 W boost design? Did you run into limits that forced you to switch to a fully integrated module like the LTM8054? Any pointers or alternative IC recommendations would be greatly appreciated!
