Datasheet

LTC3443
8
3443fa
4
SW1
5
SW2
PMOS A
NMOS B
9
PV
IN
PMOS D
NMOS C
3443 F01
8
V
OUT
V
OUT
75%
D
MAX
BOOST
D
MIN
BOOST
D
MAX
BUCK
DUTY
CYCLE
0%
BOOST REGION
BUCK REGION
BUCK/BOOST REGION
3443 F02
A ON, B OFF
PWM CD SWITCHES
D ON, C OFF
PWM AB SWITCHES
FOUR SWITCH PWM
Figure 1. Simplified Diagram of Output Switches
Figure 2. Switch Control vs Internal Control Voltage, V
CI
OPERATIO
U