Project Owners: Mostafa Hussein Rayyan Mahmood
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Part Number | Price | Comments |
|---|---|---|
$1.0309 | Buck IC | |
$0.15 | R7(16kΩ) - Lower resistor in Feedback voltage divider | |
RC0805FR-0749K9L | $0.15 | R6(49.9KΩ) - Upper resistor in Feedback voltage divider |
GCD21BR71H333KA01L | $0.27 | Css (Soft-start Cap) - 33nF |
GCD21BR71H104KA01L | $0.33 (x2) | CBST & Filtering Cap (0.1uF - 50V) |
GRM21BR61H106KE43L | $0.48 (x8) | Cin(10µF) x 8 (since it is around 1.3µF at 25.3 Volts due to DC Bias) - Ceramic Cap , 50V |
RC0805FR-1320KL | $0.15 | R2 (20 KΩ) UVLO |
RC0805FR-07280KL | $0.15 | R2 (280 KΩ) UVLO |
IHLP3232DZER4R7M11IHLP3232DZER3R3M01 | $2$1.1090 | L1 (43.7uH 3uH - 8A9.2A) |
GRM21BR61A476ME15K | $0.91 (x2) | Cout (47UF - 10V) x 2 |
Buck Selection:
Re-evaluating the decision of going with the MAX5033DASA+ chip for the buck converter, mainly to reduce form factor while maintaining high efficiency.
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Part Number | Price | Vds | Rds on (max) | Continuous Current | Output Charge (nC) | Gate Charge (nC) | Rise time | Fall time | Comments |
|---|---|---|---|---|---|---|---|---|---|
1.08 | 30V | 4.2mOhm @ 18A, 10V | 60A | 6 | 13 | 12ns | 2ns | MY SELECTION | |
0.96 | 30V | 8mOhm @ 16A, 10V | 55A | 7.5 | 12.5ns | 8.2ns | Wider package size | ||
1.02 | 30V | 7mOhm @ 30A, 10V | 60A | 23.5 | 30ns | 6ns | |||
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