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| Part Number | MAX8543EEE+T | MAX8523EEE+T | MAX8540EEE+T | MAX8543EEE+ |
|---|---|---|---|---|
| Manufacturer | Analog Devices Inc./Maxim Integrated | Analog Devices Inc./Maxim Integrated | Analog Devices Inc./Maxim Integrated | Analog Devices Inc./Maxim Integrated |
| Product Status | Obsolete | Obsolete | Active | Obsolete |
| Output Type | Transistor Driver | Transistor Driver | Transistor Driver | Transistor Driver |
| Function | Step-Down | Step-Down | Step-Up/Step-Down | Step-Down |
| Output Configuration | Positive | Positive | Positive, Isolation Capable | Positive |
| Topology | Buck | Buck | Flyback, Forward Converter | Buck |
| Number of Outputs | 1 | 2 | 1 | 1 |
| Output Phases | 1 | 2 | 1 | 1 |
| Voltage - Supply (Vcc/Vdd) | 3V ~ 13.2V | 4.5V ~ 6.5V | 7.6V ~ 18V | 3V ~ 13.2V |
| Frequency - Switching | 800kHz ~ 1.2MHz | Up to 1.2MHz | 200kHz ~ 1MHz | 800kHz ~ 1.2MHz |
| Duty Cycle (Max) | - | - | 80% | - |
| Synchronous Rectifier | Yes | Yes | No | Yes |
| Clock Sync | Yes | No | Yes | Yes |
| Serial Interfaces | - | - | - | - |
| Control Features | Current Limit, Enable, Power Good, Soft Start | - | Current Limit, Enable, Frequency Control, On Time Control, Ramp, Soft Start | Current Limit, Enable, Power Good, Soft Start |
| 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 | Surface Mount |
| Package / Case | 16-SSOP (0.154", 3.90mm Width) | 16-SSOP (0.154", 3.90mm Width) | 16-SSOP (0.154", 3.90mm Width) | 16-SSOP (0.154", 3.90mm Width) |
| Supplier Device Package | 16-QSOP | 16-QSOP | 16-QSOP | 16-QSOP |
