[PREFIX][SERIES][VARIANT][PACKAGE]
   |       |        |        |
   |       |        |        +-- Package code (2-5 letters): AAC, QNC, DFN
   |       |        +-- Single digit variant (0-9)
   |       +-- 3-4 digit series (e.g., 808, 720, 628)
   +-- SY or SYX (extended line)

SY8088AAC
|| |  |||
|| |  ||+-- C = Part of QFN suffix
|| |  |+-- A = Part of QFN suffix
|| |  +-- A = Package code start
|| +-- 8 = Variant within SY808 series
|+-- SY808 = DC-DC buck converter series
+-- Silergy prefix

SY7208QNC
|| |  |||
|| |  ||+-- C = Part of QFN suffix
|| |  |+-- N = QFN variant
|| |  +-- Q = Package start
|| +-- 8 = Variant within SY720 series
|+-- SY720 = DC-DC boost converter series
+-- Silergy prefix

SYX196
||| ||
||| |+-- 6 = Variant
||| +-- 19 = Part of series number
||+-- X = Extended product line indicator
|+-- SY = Silergy prefix
+-- Extended line part

// Silergy package codes are 2-5 letters after the part number
// Pattern: SY[X]?[0-9]{3,4}[PACKAGE]
// Examples: SY8088AAC -> AAC -> QFN
//           SY6288DFN -> DFN -> DFN

Pattern packagePattern = Pattern.compile("^SY[X]?[0-9]{3,4}([A-Z]{2,5}).*$");

// SYX series returns "SYX"
// Standard SY[0-9]{4} returns first 5 chars (e.g., SY808, SY720)
if (upperMpn.matches("^SYX[0-9]{3}.*")) {
    return "SYX";
}
if (upperMpn.matches("^SY[0-9]{4}.*")) {
    return upperMpn.substring(0, 5);  // SY808, SY720, SY628, etc.
}

// Only SY7200 is an LED driver in the SY720x series
// SY7201-SY7209 are boost converters
private boolean isLEDDriver(String mpn) {
    return mpn.matches("^SY7200[A-Z0-9]*$");
}

public String getProductCategory(String mpn) {
    String upper = mpn.toUpperCase();

    // Buck converters
    if (upper.matches("^SY808[0-9].*") ||
        upper.matches("^SY809[0-9].*") ||
        upper.matches("^SY811[0-9].*")) {
        return "DC-DC Buck Converter";
    }
    // Boost converters (not SY7200)
    if (upper.matches("^SY720[1-9].*")) {
        return "DC-DC Boost Converter";
    }
    // LED driver
    if (upper.matches("^SY7200.*")) {
        return "LED Driver";
    }
    // LDOs
    if (upper.matches("^SY800[0-9].*") ||
        upper.matches("^SY628[0-9].*")) {
        return "LDO Regulator";
    }
    // Battery chargers
    if (upper.matches("^SY698[0-9].*")) {
        return "Battery Charger";
    }
    return "";
}