Datasheet

Application information L7985
22/44 DocID022446 Rev 8
For example, with V
OUT
= 5 V, V
IN
= 24 V, I
O
= 2 A, L = 22 µH, C
OUT
= 22 µF, and
ESR < 1 mΩ, the type III compensation network is:
In Figure 12 the module and phase of the open-loop gain is shown. The bandwidth is about
32 kHz and the phase margin is 51 °.
Figure 12. Open-loop gain Bode diagram with ceramic output capacitor
R
1
4.99k= R
2
680= R
3
270= R
4
1.1k= C
3
4.7nF= C
4
47nF= C
5
1nF= 