A good PCB layout for the TPS51200DRCR involves placing the input capacitors close to the VIN pin, using a solid ground plane, and keeping the high-current paths short and wide. TI provides a recommended layout in the datasheet and in application notes.
Choose input capacitors with low ESR and high ripple current rating. For output capacitors, choose ones with low ESR and high capacitance. The datasheet provides guidelines for capacitor selection, and TI's capacitor selection tool can also be used.
The TPS51200DRCR has an operating junction temperature range of -40°C to 150°C, but the maximum ambient temperature range depends on the specific application and thermal design. A good thermal design should ensure the junction temperature stays within the specified range.
The TPS51200DRCR has a built-in overcurrent protection feature. To implement it, connect a sense resistor in series with the output, and connect the sense pin to the sense resistor. The device will limit the output current to the programmed value.
Yes, the TPS51200DRCR can be used in a synchronous buck configuration. However, this requires additional external components, such as a synchronous rectifier FET and a driver IC. TI provides application notes and reference designs for synchronous buck configurations.
TPS51200DRCR datasheet
by Texas Instruments
