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LTM2881-Slide17

The output of the DC/DC converter is available on the VCC2 pin relative to GND2 on the isolated side. The LTM2881 isolated power supply, VCC2 , is regulated to 5V capable of delivering 600mW with the 3.3V input version (LTM2881-3) or up to 1W with the 5V input version (LTM2881-5). This graph shows the typical output current before VCC2 is decreased to 4.75V over temperature for typical input supplies. The LTM2881 efficiency curve shows up to 52% efficiency with a -3 option and up to 62% efficiency with a -5 option. VCC2 is decoupled by an internal 2.2µF capacitor to minimize noise.

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