LM2733XEVAL [Texas Instruments]

The LM2731 has a higher current internal switch FET (with lower breakdown voltage), while the LM2733 has a higher voltage FET that handles less current. The LM2733 targets applications with higher output voltages, while the LM2731 is intended for applications requiring higher load currents at lower output voltages. The 'X' version operates at 1.6 MHz switching frequency and the 'Y' version at 600 kHz.