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| Part Number | LM3544M-H/NOPB | LM3544M-L/NOPB | LM3544MX-H/NOPB | LM3543M-H/NOPB |
|---|---|---|---|---|
| Manufacturer | Texas Instruments | Texas Instruments | Texas Instruments | National Semiconductor |
| Product Status | Obsolete | Active | Obsolete | Obsolete |
| Switch Type | USB Switch | USB Switch | USB Switch | USB Switch |
| Number of Outputs | 4 | 4 | 4 | 3 |
| Ratio - Input:Output | 1:2 | 1:2 | 1:2 | 1:3 |
| Output Configuration | High Side | High Side | High Side | High Side |
| Output Type | N-Channel | N-Channel | N-Channel | N-Channel |
| Interface | On/Off | On/Off | On/Off | On/Off |
| Voltage - Load | 2.7V ~ 5.5V | 2.7V ~ 5.5V | 2.7V ~ 5.5V | 2.7V ~ 5.5V |
| Voltage - Supply (Vcc/Vdd) | Not Required | Not Required | Not Required | Not Required |
| Current - Output (Max) | 500mA | 500mA | 500mA | 500mA |
| Rds On (Typ) | 90mOhm | 90mOhm | 90mOhm | 90mOhm |
| Input Type | Non-Inverting | Non-Inverting | Non-Inverting | Non-Inverting |
| Features | Status Flag | Status Flag | Status Flag | Status Flag |
| Fault Protection | Current Limiting (Fixed), Over Temperature, UVLO | Current Limiting (Fixed), Over Temperature, UVLO | Current Limiting (Fixed), Over Temperature, UVLO | Current Limiting (Fixed), Over Temperature, UVLO |
| Operating Temperature | -40°C ~ 125°C (TJ) | -40°C ~ 125°C (TJ) | -40°C ~ 125°C (TJ) | -40°C ~ 125°C (TJ) |
| Mounting Type | Surface Mount | Surface Mount | Surface Mount | Surface Mount |
| Supplier Device Package | 16-SOIC | 16-SOIC | 16-SOIC | 16-SOIC |
| Package / Case | 16-SOIC (0.154", 3.90mm Width) | 16-SOIC (0.154", 3.90mm Width) | 16-SOIC (0.154", 3.90mm Width) | 16-SOIC (0.154", 3.90mm Width) |
