LTC3458

13

3458f

rolled off before the RHP zero frequency.

The typical error amp compensation is shown in Figure 2.

The equations for the loop dynamics are as follows:

f

eCC

which is close to DC

f

RCC

f

RCC

POLE

ZERO

Z

POLE

Z

1

6

1

2

1

210

1

1

21

1

22

≈

=

≈

π

π

π

••

••

••

–

+

7

8

COMP

FB

ERROR

AMP

1.25V

R1

R2

CC1

CC2

RZ

3458 F01

Figure 2

APPLICATIO S I FOR ATIO