Rainbow Electronics MAX15022 - Manual (Page 25)

MAX15022
Dual, 4A/2A, 4MHz, Step-Down DC-DC
Regulator with Dual LDO Controllers
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Typical Operating Circuits
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
R 2EN4
R 1EN4
R P2
R 1EN3
R 1FB3
R 2FB3
R
P1
C
1
V
IN
R 1FB1
R I1
R S2
L 2
R 2FB2
R 2FB1
R 1FB2
C T
C 2
C OUT3
C
P1
C I1
C
OUT2
V OUT2
V AVIN
V OUT1
C S2
C IN2 C DD2
FB2
V
IN
PVIN1
C IN1
V IN
COMP2
C CF1
C F1 R F1
LX1
PGND1
FB1
PGND SGND
R S1
L 1
C OUT1
V OUT1
V AVIN
C S1
R 1EN2
R 2EN2
B3
FB4
EN4
EN3
FB3
B4
Q 1
Q 2
V OUT2
V OUT3
V OUT4
R 2EN3
R 2FB4
R
1FB4 C OUT4
C E1
C P2
C E2
Figure 7. MAX15022 Double Buck with Tracking and Two Additional LDOs