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| Part Number | UCC28528DWRG4 | UCC28521DWRG4 | 
|---|---|---|
| Manufacturer | Texas Instruments | Texas Instruments | 
| Product Status | Obsolete | Obsolete | 
| Mode | Average Current | Average Current | 
| Frequency - Switching | 200kHz | 200kHz | 
| Current - Startup | 100 µA | 100 µA | 
| Voltage - Supply | 9.7V ~ 18V | 9.7V ~ 18V | 
| Operating Temperature | -40°C ~ 105°C | -40°C ~ 105°C | 
| Mounting Type | Surface Mount | Surface Mount | 
| Package / Case | 20-SOIC (0.295", 7.50mm Width) | 20-SOIC (0.295", 7.50mm Width) | 
| Supplier Device Package | 20-SOIC | 20-SOIC |