LTC3458_15 Datasheet, PDF (13/16 Pages) Linear Technology – 1.4A, 1.5MHz Synchronous Step-Up DC/DC Converter with Output Disconnect

APPLICATIO S I FOR ATIO
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_POLE1
≈
2π
1
• 10e ⁶
which
• CC1
is
close
to
DC
f_ZERO1
=
2π
1
• R_Z
• CC1
f_POLE2
≈
2π
1
•R_Z • CC2
LTC3458
ERROR
AMP
1.25V
V_OUT
FB
7
COMP
8
CC1
RZ
Figure 2
R1
R2
CC2
3458 F01
3458fa
13