JAJSJO5A October 2022 – October 2023 LM64460-Q1
PRODUCTION DATA
Figure 9-1 shows the schematic diagram of a synchronous buck regulator with an output voltage set at 5 V and a rated load current of 6 A. In this example, the target half-load and full-load efficiencies are 94.5% and 92.5%, respectively, based on a nominal input voltage of 13.5 V that ranges from 5 V to 36 V. The switching frequency is set at the default 2.1 MHz of the LM64460-Q1. The BIAS input is connected to the 5-V output, thus reducing IC bias power dissipation and improving efficiency performance. Connecting MODE/SYNC to GND configures the LM64460-Q1 for AUTO mode with spread spectrum enabled.