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| Part Number | TPS53681RSBT | TPS53688RSBT | TPS53681RSBR |
|---|---|---|---|
| Manufacturer | Texas Instruments | Texas Instruments | Texas Instruments |
| Product Status | Active | Obsolete | Active |
| Output Type | PWM Signal | Transistor Driver | PWM Signal |
| Function | Step-Down | Step-Down | Step-Down |
| Output Configuration | Positive | Positive | Positive |
| Topology | Buck | Buck | Buck |
| Number of Outputs | 2 | 2 | 2 |
| Output Phases | 8 | 8 | 8 |
| Voltage - Supply (Vcc/Vdd) | 4.5V ~ 17V | 4.5V ~ 17V | 4.5V ~ 17V |
| Frequency - Switching | 300kHz ~ 1MHz | - | 300kHz ~ 1MHz |
| Duty Cycle (Max) | - | - | - |
| Synchronous Rectifier | No | No | No |
| Clock Sync | No | No | No |
| Serial Interfaces | PMBus | PMBus | PMBus |
| Control Features | Current Limit, Enable | - | Current Limit, Enable |
| Operating Temperature | -40°C ~ 125°C (TJ) | -40°C ~ 125°C | -40°C ~ 125°C (TJ) |
| Mounting Type | Surface Mount | Surface Mount | Surface Mount |
| Package / Case | 40-WFQFN Exposed Pad | 40-WFQFN Exposed Pad | 40-WFQFN Exposed Pad |
| Supplier Device Package | 40-WQFN (5x5) | 40-WQFN (5x5) | 40-WQFN (5x5) |
