Rainbow Electronics MAX15022 - Manual (Page 26)

MAX15022
Dual, 4A/2A, 4MHz, Step-Down DC-DC
Regulator with Dual LDO Controllers
26 ______________________________________________________________________________________
Typical Operating Circuits (continued)
C
I2
MAX15022
LX2
PGND2
EN1
DVDD1
RT SEL COMP1 SGND
AVIN EN2 PVIN2 DVDD2
C
DD1
C CF2
C F2 R F2
R T
R
I2
R 1
C 1
V IN
R 1FB1
R I1
R S2
L 2
R 2FB2
R 2FB1
R 1FB2
C T
C 2
C I1
C OUT2
V OUT2
V AVIN
C S2
C IN2 C DD2
FB2
V IN
PVIN1
C IN1
V IN
COMP2
C CF1
C F1 R F1
LX1
PGND1
FB1
R S1
L 1
C
OUT1
V OUT1
C S1
R 2EN4
R 1EN4
R P2
R 1EN3
R 1FB3
R 2FB3
R P1
C OUT3
C P1
PGND SGND
B3
FB4
EN4
EN3
FB3
B4
Q 1
Q 2
V
OUT3
V
OUT4
R 2EN3
R 2FB4
R 1FB4 C
OUT4
C E1
C P2
C E2
Figure 8. MAX15022 Double Buck with Sequencing and Two Additional LDOs