MIC4682

Micrel

October 2003

8

M0334-102203

No-Load Stability

Phase Margin = 98°

V

V

I

T

Full-Load Stability

Phase Margin = 56°

V

V

I

T

Typical Bode Plots

The following bode plots show that the MIC4682 is stable using a 68

µH inductor (L) and a 220µF output capacitor (C

To assure stability, it is a good practice to maintain a phase margin of greater than 35

°C.

No-Load Stability

Phase Margin = 109°

V

V

I

T

Full-Load Stability

Phase Margin = 50°

V

V

I

T

No-Load Stability

Phase Margin = 122°

V

V

I

T

Full-Load Stability

Phase Margin = 45°

V

V

I

T