8.3 Power Supply Recommendations

A power supply can be used at the input voltage within the ranges given in the Recommended Operating

Conditions table. Use bypass capacitors as described in the Layout Guidelines section.

8.4 Layout

8.4.1 Layout Guidelines

• Bypass the input pin to ground with a bypass capacitor.

• The optimum placement of the bypass capacitor is closest to the VIN of the device and GND of the system.

Care must be taken to minimize the loop area formed by the bypass capacitor connection, the VIN pin, and

the GND pin of the system.

• For operation at full-rated load, use wide trace lengths to eliminate IR drop and heat dissipation.

8.4.2 Layout Example

V

IN

GND

PLANE

C

IN

C

BYPASS

BYPASS

ON/OFF

V

OUT

C

OUT

Figure 8-25. Layout Diagram

LP2985

SLVS522Q – JULY 2004 – REVISED DECEMBER 2022

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