The TPS54326EVM-540 is a 6V, 3A, low Iq, current mode, synchronous monolithic buck converter with integrated MOSFETs. The TPS54326EVM-540 enables small designs by integrating the MOSFETs, implementing current mode control to reduce external component count, reducing inductor size by 700kHz switching frequency. SOIC-8 package with exposed thermal pad provides both thermally enhanced solution and easy to use.
The TPS54326EVM-540 provides accurate regulation for a variety of loads with an accurate 3.0% voltage reference over temperature.
Efficiency is maximized through the integrated 70m MOSFETs and 360μA typical supply current. Using the enable pin, shutdown supply current is reduced to 2 μA by entering a shutdown mode.
The output voltage startup ramp is controlled by the slow start pin. A ceramic capacitor at this pin can easily adjust the slow start time.
Frequency fold back and thermal shutdown protects the device during an over-current condition.
Feature
- Two 70mΩ (typical) MOSFETs for 3A Continuous Output Current
- Current Mode Control With External Compensation
- 700kHz Switching Frequency
- 360μA no Load Quiescent Operating Current (no switching)
- 0.808V Internal Voltage Reference
- ±2.0% Reference Accuracy at 25°C
- ±3.0% Reference Accuracy Over Temperature Range –40°C~125°C
- Stable Operation With Ceramic Output Capacitor
- Adjustable Slow Start
- Cycle by Cycle Current Limit, and Frequency Fold Back Protection
- Thermally Enhanced 8-Pin SOIC (DDA) Package
