Gehäuseinformationen
| Gehäuse | Pins SOT-23-THN (DDC) | 6 |
| Betriebstemperaturbereich (°C) -40 to 125 |
| Gehäusemenge | Träger 250 | SMALL T&R |
Merkmale von TPS54202
- 4.5-V to 28-V wide input voltage range
- Integrated 148-mΩ and 78-mΩ MOSFETs for 2-A, continuous output current
- Low 2-µA shutdown, 45-µA quiescent current
- Internal 5-mS soft start
- Fixed 500-kHz switching frequency
- Frequency spread spectrum to reduce EMI
- Advanced Eco-mode™ pulse skip
- Peak current mode control
- Internal loop compensation
- Overcurrent protection for both MOSFETs with hiccup mode protection
- Overvoltage protection
- Thermal shutdown
- SOT-23 (6) package
Beschreibung von TPS54202
The TPS54202 is a 4.5-V to 28-V input voltage range, 2-A synchronous buck converter. The device includes two integrated switching FETs, internal loop compensation and 5-ms internal soft start to reduce component count.
By integrating the MOSFETs and employing the SOT-23 package, the TPS54202 achieves the high power density and offers a small footprint on the PCB.
Advanced Eco-mode implementation maximizes the light load efficiency and reduces the power loss.
The frequency spread spectrum operation is introduced for EMI reduction.
Cycle-by-cycle current limit in both high-side MOSFET protects the converter in an overload condition and is enhanced by a low-side MOSFET freewheeling current limit which prevents current runaway. Hiccup mode protection is triggered if the overcurrent condition has persisted for longer than the present time.