richtek
Richtek Technology MPN encoding patterns, suffix decoding, and handler guidance. Use when working with Richtek power management ICs.
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- Richtek Technology MPN encoding patterns, suffix decoding, and handler guidance. Use when working with Richtek power management ICs.
# Richtek Technology Manufacturer Skill
## MPN Structure
Richtek MPNs follow this general structure:
```
[PREFIX][SERIES][VARIANT][PACKAGE][SUFFIX]
| | | | |
| | | | +-- Optional: -TR (Tape/Reel), -E (RoHS)
| | | +-- Package code (2-3 letters): GQW, GSP, GB
| | +-- Optional variant or voltage code
| +-- 4-digit series number (e.g., 8059, 9013)
+-- RT or RTQ (automotive grade)
```
### Example Decoding
```
RT8059GQW
|| | |||
|| | ||+-- W = Part of QFN suffix
|| | |+-- Q = QFN package indicator
|| | +-- G = Package code start
|| +-- 8059 = DC-DC converter series
|+-- RT = Richtek prefix
+-- Standard industrial grade
RT9013-33GB
|| | || ||
|| | || |+-- B = SOT-23-5 package suffix
|| | || +-- G = Package code start
|| | |+-- 33 = 3.3V voltage code
|| | +-- Hyphen separates voltage
|| +-- 9013 = LDO series
|+-- RT = Richtek prefix
+-- Standard grade
RTQ2106GQW
||| | |||
||| | ||+-- W = Part of QFN suffix
||| | |+-- Q = QFN indicator
||| | +-- G = Package start
||| +-- 2106 = Part number
||+-- Q = Automotive grade (AEC-Q100)
|+-- RT = Richtek
+-- Automotive qualified
```
---
## Package Codes
### QFN Packages
| Code | Package | Notes |
|------|---------|-------|
| GQW | QFN | Standard QFN |
| PQW | QFN | QFN variant |
| GQ | QFN | Compact QFN |
| GW | QFN | QFN variant |
### WLCSP Packages
| Code | Package | Notes |
|------|---------|-------|
| GSP | WLCSP | Wafer-level chip scale |
| GS | WLCSP | WLCSP variant |
### SOT-23 Packages
| Code | Package | Notes |
|------|---------|-------|
| GB | SOT-23-5 | 5-pin SOT-23 |
| GE | SOT-23-6 | 6-pin SOT-23 |
| GT | SOT-23-3 | 3-pin SOT-23 |
### DFN Packages
| Code | Package | Notes |
|------|---------|-------|
| GD | DFN | Standard DFN |
| GF | DFN | DFN variant |
### SOP/SOIC Packages
| Code | Package | Notes |
|------|---------|-------|
| SP | SOP-8 | 8-pin SOP |
| SA | SOIC-8 | 8-pin SOIC |
| SE | SOIC-8 | SOIC variant |
### TSSOP Packages
| Code | Package | Notes |
|------|---------|-------|
| TP | TSSOP | Standard TSSOP |
| TS | TSSOP | TSSOP variant |
### MSOP Packages
| Code | Package | Notes |
|------|---------|-------|
| MS | MSOP | Standard MSOP |
| MF | MSOP-8 | 8-pin MSOP |
---
## Product Lines
### RT4xxx - LED Drivers / Backlight Controllers
| Series | Description | Application |
|--------|-------------|-------------|
| RT4831 | LED Backlight Driver | LCD panel backlighting |
| RT4801 | LED Driver | Display backlighting |
| RT4xxx | General LED drivers | LED lighting control |
### RT5xxx - DC-DC Converters
| Series | Description | Output |
|--------|-------------|--------|
| RT5785 | Step-down DC-DC | Various |
| RT5749 | Buck converter | Various |
### RT6xxx - High-Efficiency DC-DC Converters
| Series | Description | Efficiency |
|--------|-------------|------------|
| RT6150 | High-efficiency buck | >90% |
| RT6160 | Synchronous buck | High efficiency |
### RT8xxx - DC-DC Converters / LED Drivers
| Subseries | Type | Notes |
|-----------|------|-------|
| RT80xx-RT83xx | DC-DC converters | Step-down |
| RT84xx | LED drivers | Backlight |
| RT85xx | LED drivers | Display |
| RT86xx-RT89xx | DC-DC converters | Various |
### RT9xxx - LDO / Linear Regulators
| Series | Description | Features |
|--------|-------------|----------|
| RT9013 | 500mA LDO | Ultra-low noise |
| RT9193 | 300mA LDO | Low dropout |
| RT9058 | LDO | General purpose |
| RT945x | Battery chargers | Li-ion/Li-Po |
| RT946x | Battery chargers | Fast charging |
### RTQ Series - Automotive Grade
| Series | Description | Qualification |
|--------|-------------|---------------|
| RTQxxxx | Automotive versions | AEC-Q100 qualified |
| RTQ2106 | Automotive DC-DC | Extended temp |
| RTQ6360 | Automotive buck | -40C to +125C |
---
## Handler Implementation Notes
### Package Code Extraction
```java
// Richtek package codes are typically 2-3 letters after the part number
// Pattern: RT[Q]?[0-9]{4}[package-letters]...
// Examples: RT8059GQW -> GQW -> QFN
// RT9013-33GB -> GB -> SOT-23-5
// Handle voltage code in middle (e.g., RT9013-33GB)
// Pattern: RT[0-9]{4}-[0-9]{2}[package]
Pattern voltagePattern = Pattern.compile("^RT[0-9]{4}-[0-9]{2}([A-Z]{2,3})$");
```
### Series Extraction
```java
// RTQ series returns "RTQ"
// Standard RT[4-9]xxx returns "RT4", "RT5", "RT6", "RT8", "RT9"
if (upperMpn.startsWith("RTQ")) {
return "RTQ";
}
if (upperMpn.matches("^RT[4-9][0-9]{3}.*")) {
return upperMpn.substring(0, 3); // RT4, RT5, RT6, RT8, RT9
}
```
### LED Driver vs Voltage Regulator Detection
```java
// LED Drivers: RT4xxx, RT84xx, RT85xx
// Voltage Regulators: RT5xxx, RT6xxx, RT8[0-367-9]xx, RT9xxx
private boolean isLEDDriver(String mpn) {
return mpn.matches("^RT4[0-9]{3}.*") || // RT4xxx
mpn.matches("^RT8[45][0-9]{2}.*") || // RT84xx, RT85xx
mpn.matches("^RTQ4[0-9]{3}.*") || // RTQ4xxx
mpn.matches("^RTQ8[45][0-9]{2}.*"); // RTQ84xx, RTQ85xx
}
```
### Automotive Grade Detection
```java
// RTQ prefix indicates AEC-Q100 automotive qualification
// Also check for -AEC suffix
public boolean isAutomotiveGrade(String mpn) {
String upper = mpn.toUpperCase();
return upper.startsWith("RTQ") || upper.contains("-AEC");
}
```
### Automotive Equivalents
```java
// RTQ6150 is automotive version of RT6150
// Check for equivalent parts with/without Q
private boolean areEquivalentParts(String mpn1, String mpn2) {
// RTQ6150 <-> RT6150
if (mpn1.startsWith("RTQ") && mpn2.startsWith("RT") && !mpn2.startsWith("RTQ")) {
String num1 = mpn1.substring(3, 7); // 4-digit from RTQxxxx
String num2 = mpn2.substring(2, 6); // 4-digit from RTxxxx
return num1.equals(num2);
}
}
```
---
## Related Files
- Handler: `manufacturers/RichtekHandler.java`
- Component types: `IC`, `VOLTAGE_REGULATOR`, `LED_DRIVER`
- Test file: `handlers/RichtekHandlerTest.java`
---
## Learnings & Edge Cases
- **RT84xx/RT85xx are LED drivers**, not DC-DC converters like other RT8xxx parts
- **RTQ prefix indicates AEC-Q100 automotive qualification** - same part number with RTQ vs RT are equivalent except for temperature rating
- **Voltage code in MPN**: Parts like RT9013-33GB have voltage (33=3.3V) embedded between part number and package
- **Battery chargers**: RT945x and RT946x are battery charger ICs, classified as voltage regulators
- **Package suffix structure**: Package codes start with G, P, S, M, T followed by package-specific letters
- **Tape and reel suffixes**: -TR, -E, -RL, -REEL should be stripped before package extraction
<!-- Add new learnings above this line -->
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