MAX8742EAI Maxim Integrated, MAX8742EAI Datasheet - Page 14

• Manufacturer Part Number: MAX8742EAI
• Description: Current & Power Monitors & Regulators
• Manufacturer: Maxim Integrated

500kHz Multi-Output Power-Supply Controllers
with High Impedance in Shutdown
Figure 2. MAX8742 Functional Diagram
14
3.3V
R1
R2
______________________________________________________________________________________
5V ALWAYS ON
7V TO 24V
INPUT
TIME/ON5
CSH3
CSL3
BST3
DH3
REF
LX3
DL3
FB3
V
L
0.6V
+
-
+
-
V
REF
L
V
L
LINEAR
+
-
SHDN
LOGIC
PWM
REG
2.5V
3.3V
REF
5V
50kHz
ON/OFF
LPF
REF
POWER-ON
SEQUENCE
+
-
LOGIC
4.5V
RUN/ON3
CSL5
1.75V
-
2.68V
OUTPUTS
2.388V
333kHz
500kHz
OV/UV
FAULT
OSC
TO
UP
V+
-
SYNC
LINEAR
+
-
+
-
REF
12V
REG
SECFB
50kHz
LOGIC
PWM
LPF
5V
GND
MAX8742
IN
TIMER
+
-
2.6V
1V
V
13V
L
-
+
-
+
0.6V
12OUT
V
BST5
DH5
DL5
PGND
CSH5
CSL5
FB5
RESET
LX5
SEQ
DD
12V
RAW 15V
R3
R4
5V