TPS54478 Overview
The TPS54478 device is a full featured 6-V, 4-A, synchronous step down current mode converter with two integrated MOSFETs. The TPS54478 enables small designs by integrating the MOSFETs, implementing current mode control to reduce external ponent count, reducing inductor size by enabling up to 2-MHz switching frequency, and minimizing the IC footprint with a small 3-mm × 3-mm thermally enhanced WQFN package. The...
TPS54478 Key Features
- 1 Two 30-mΩ (typical) MOSFETs for High Efficiency at 4-A Loads
- 200-kHz to 2-MHz Switching Frequency
- 0.6-V ± 1% Voltage Reference Over Temperature
- Start-up With Prebiased Voltage
- Synchronizes to External Clock
- Adjustable Slow Start / Sequencing
- UV and OV Power-Good Output
- Cycle by Cycle Current Limit and Hiccup Current
- Thermally Enhanced 3-mm × 3-mm 16-Pin WQFN
- Pin patible to TPS54418