Rainbow Electronics MAX8668 - Manual (Page 9)

MAX8667/MAX8668
1.5MHz Dual Step-Down DC-DC Converters
with Dual LDOs and Individual Enables
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IN
REF
EN
UVLO
REF AND BIAS
GND
IN
EN
OUT
GND
IN
EN
GND
IN
EN
OUT
GND
IN34
1.7V TO 5.5V
IN12
2.8V TO 5.5V
(2.6V TO 5.5V)
GND
LX1
LX2
REF
OUT3
OUT4
PWRON LOGIC
AND ENABLES
EN3
EN4
EN1
EN2
PGND2
OUT1
(FB1)
OUT2
(FB2)
FB
FB
PGND1
EN
OUT1
OUT2
OUT3
OUT4
LDO
LDO
STEP-DOWN
STEP-DOWN
() ARE FOR THE MAX8668
Figure 1. Functional Diagram