MAX1652 Datasheet, PDF (13/28 Pages) Maxim Integrated Products – High-Efficiency, PWM, Step-Down DC-DC Controllers in 16-Pin QSOP

High-Efficiency, PWM, Step-Down
DC-DC Controllers in 16-Pin QSOP
4.5V
SECFB
+2.50V
AT 100µA _REF
GND
BATTERY VOLTAGE
TO
V+
CSL
+5V LINEAR _OUT
REGULATOR
VL
SHDN
BST
PWM
LOGIC
+2.50V
REF
PWM
COMPARATOR
LPF
12kHz
3.3V FB
DH
LX
DL
PGND
CSH
CSL
ON/OFF
SHDN
SS
5V FB
ADJ FB
FB
MAX1652
MAX1653
MAX1654
MAX1655
SYNC
4V
1V
+5V AT 5mA
AUXILIARY
OUTPUT
MAIN
OUTPUT
Figure 2. MAX1652–MAX1655 Functional Diagram
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