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| Part Number | MIC4576BU | MIC4576WU | MIC4575BU | MIC4576BT |
|---|---|---|---|---|
| Manufacturer | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Product Status | Obsolete | Active | Obsolete | Obsolete |
| Function | Step-Down | Step-Down | Step-Down, Step-Up/Step-Down | Step-Down |
| Output Configuration | Positive | Positive | Positive | Positive |
| Topology | Buck | Buck | Buck, Buck-Boost | Buck |
| Output Type | Adjustable | Adjustable | Adjustable | Adjustable |
| Number of Outputs | 1 | 1 | 1 | 1 |
| Voltage - Input (Min) | 4V | 4V | 4V | 4V |
| Voltage - Input (Max) | 36V | 36V | 24V | 36V |
| Voltage - Output (Min/Fixed) | 1.23V | 1.23V | 1.23V | 1.23V |
| Voltage - Output (Max) | 33V | 33V | 20V | 33V |
| Current - Output | 3A | 3A | 1.7A (Switch) | 3A |
| Frequency - Switching | 200kHz | 200kHz | 200kHz | 200kHz |
| Synchronous Rectifier | No | No | No | No |
| Operating Temperature | -40°C ~ 85°C (TA) | -40°C ~ 85°C (TA) | -40°C ~ 85°C (TA) | -40°C ~ 85°C (TA) |
| Mounting Type | Surface Mount | Surface Mount | Surface Mount | Through Hole |
| Package / Case | TO-263-6, D²Pak (5 Leads + Tab), TO-263BA | TO-263-6, D²Pak (5 Leads + Tab), TO-263BA | TO-263-6, D²Pak (5 Leads + Tab), TO-263BA | TO-220-5 |
| Supplier Device Package | TO-263-5 | TO-263-5 | TO-263-5 | TO-220-5 |
