DS6184 Rev 18

15/34

L5150CJ, L5150CS

Application information

33

Figure 22. Stability region

Figure 23. Maximum load variation response

0.001

0.01

0.1

1

10

100

0.22 0.47 0.6 0.8

1

1.2 1.4 1.6 1.8

2

2.2 2.4 2.6 2.8

3

4

4.5 4.7

Co (μF)

ESRmin

STABILITY REGION

UNTESTED REGION

GAPGPS01392

Note: The curve which describes the minimum ESR is derived from characterization data on the regulator

with connected ceramic capacitors which feature low ESR values (at 100 kHz). Any capacitor with

further lower ESR than the given plot value must be evaluated in each and every case.

Time (μs)

-500

0

0

500

Io (mA)

Vo (mV)

1000

1500

2000

Vo = 50 mV/div

Io = 50 mA/div

VS = 13.5 V

Io = 8 to 300 mA

Tc = 25 °C

Co = 220 nF

GAPG2905150941PS