STOD2540

Functional description

Doc ID 12204 Rev 10

9/20

5.5

Load isolation switch

When the device is in shutdown mode, a DC current path always exists between the power

source and the load; increasing the standby consumption. A high side switch LDS isolates

the load from the source when the STOD2540 is disabled.

5.6

Efficiency

The total consumption of some PMOLED display, can be as low as 1 mA. In order to

increase the battery run time of the device, STOD2540 offers a high efficiency over a wide

range of load and input voltage range.

5.7

Under voltage lockout (UVLO)

The minimum supply voltage is 3.0 V, under this value the under voltage lockout circuit

operates with typical threshold 2.8 V.

When supply voltage is below 3.0 V, possible noise in the supply line could disturb the UVLO

higher.