MAX8668 Maxim Integrated Products, MAX8668 Datasheet - Page 12

• Manufacturer Part Number: MAX8668
• Description: (MAX8667 / MAX8668) First Dual Step-Down DC-DC Converters
• Manufacturer: Maxim Integrated Products

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1.5MHz Dual Step-Down DC-DC Converters
with Dual LDOs and Individual Enables
Figure 3. MAX8667 Typical Application Circuit
Figure 4. MAX8668 Typical Application Circuit
12
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0.6V TO 3.3V, 1.2A
2.8V TO 5.5V
2.6V TO 5.5V
OUT2
1.2A
OUT2
INPUT
INPUT
2.2μF
C7
2.2μF
C7
0.01μF
10μF
C2
C1
0.01μF
10μF
C5
C2
C1
C10*
2.2μH
2.2μH
R5*
L2
L2
R3
R4
EN1
EN2
LX2
OUT2
REF
GND
*C10, R5, AND R6 ARE OPTIONAL
PGND2
IN12
EN1
EN2
LX2
FB2
REF
GND
MAX8667
PGND1
IN12
MAX8668
IN34
PGND1
1.7V TO 5.5V
OUT3
OUT4
OUT1
IN34
PGND2
EN3
EN4
LX1
OUT3
OUT4
EN3
EN4
LX1
FB1
4.7μF
4.7μF
C8
C3
2.2μH
4.7μF
R1
R2
L1
C8
2.2μH
C4
R6*
L1
C9
4.7μF
C6
2.2μF
C6
2.2μF
OUT1
600mA
C9
4.7μF
300mA
300mA
OUT3, 300mA
OUT4, 300mA
OUT1
0.6V TO 3.3V, 600mA