Application information

L4949ED-E, L4949EP-E

12/19

Doc ID 16823 Rev 1

Figure 5.

Output voltage vs input voltage

Figure 6.

Quiescent current vs supply voltage

3.4

Preregulator

To improve the transient immunity a preregulator stabilizes the internal supply voltage to 5 V.

because the output capability is very small (

≤ 10 µA).

This output may be used as an option when a better transient behaviour for supply voltages

less than 8 V is required (see also application note).