AIC1633
ꢀ TYPICAL PERFORMANCE CHARACTERISTICS (CONTINUED)
Maximum Load Current vs
Maximum Load Current vs
Switch Current Limit Resistance
Switch Current Limit Resistance
350
300
250
200
150
100
50
300
250
200
150
100
50
VIN=1.8V
VIN=2.0V
VIN=2.2V
AIC1633/AIC1633-3
AIC1633-5
Ta=25 C
°
Ta=25 C
°
5% VOUT Drop
5% VOUT Drop
VIN=3V
VIN=2.5V
VIN=1.8V
VIN=3V
VIN=3.3V
VIN=2.0V
VIN=2.2V
VIN=2.5V
0
0
600
0
100
200
300
400
500
0
20
40
60
80
100
120
RILIM (K
)
RILIM (K )
Ω
Ω
ꢀ BLOCK DIAGRAM
-
VOUT
LBI
Current Limit
ILIM/SD
VIN
+
0.617V
-
-
100mV
+
Shutdown
+
1.22V
A
LBO
SW
OSC
CGND
SGND
5