| TYPE | DESCRIPTION |
|---|
| Mounting Style | Surface Mount |
| Frequency | 300 kHz |
| Number of Pins | 30 Pin |
| Supply Voltage (DC) | 4.50V (min) |
| Case/Package | TSSOP-30 |
| Number of Outputs | 2 Output |
| Input Voltage (DC) | 21.0 V |
| Output Voltage | 0.9V ~ 12V |
| Output Current | 20 A |
| Input Current | 1.10 mA |
| Power Dissipation | 874 mW |
| Quiescent Current | 1.10 mA |
| Number of Regulated Outputs | 2 Output |
| Switching Frequency | 300 kHz |
| Thermal Shutdown | No |
| Topology | Buck |
| Duty Cycle | 80 % |
| Input Voltage (Max) | 15 V |
| Input Voltage (Min) | 4.5 V |
| Output Current (Max) | 20 A |
| Maximum Duty Cycle | 0.8 |
| Operating Temperature (Max) | 85 ℃ |
| Operating Temperature (Min) | -40 ℃ |
| Power Dissipation (Max) | 874 mW |
| Supply Voltage | 4.5V ~ 15V |
| Supply Voltage (Max) | 5.5 V |
| Supply Voltage (Min) | 4.5 V |
| Input Voltage | 4.5V ~ 15V |
| TYPE | DESCRIPTION |
|---|
| Product Lifecycle Status | Active |
| Packaging | Tube |
| Operating Temperature | -40℃ ~ 85℃ (TA) |
The TPS5124 is dual independent high efficiency synchronous step-down controller. It supports a low-voltage/high-current power supply applications that use either a 5-V or 12-V bus voltage. Since both controllers of the TPS5124 operate 180 degree out-of-phase, the input current ripple is minimized resulting in a smaller input capacitance and reduced power supply cost.
●The current protection circuit detects the drain-to-source voltage drop across the high-side and low-side power MOSFET while it is conducting. Also, the current protection circuit has a temperature coefficient to compensate for the RDS(on) variation of the MOSFET. This resistor-less current protection and built-in boost diode simplify the system design and reduces the external parts count. Other features such as undervoltage lockout, overvoltage, undervoltage, and programmable short-circuit protection promote system reliability.
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