SNOSDH5 November 2024 LMG2640
PRODUCTION DATA
Refer to the PDF data sheet for device specific package drawings
Design the power supply with separate signal and power grounds that only connect in one location. Connect the LMG2640 AGND pin to signal ground. Connect the LMG2640 SL pin and PADL thermal pad to power ground. The LMG2640 serves as the single connection point between the signal and power grounds since the AGND pin, SL pin, and PADL thermal pad are connected internally. Do not connect the signal and power grounds anywhere else on the board except as recommended in the next sentence. To facillitate board debug with the LMG2640 not installed, connect the AGND pad to the PADL thermal pad as shown in the Layout Example.