CAT37
Table 4. ELECTRICAL OPERATING CHARACTERISTICS
(Over recommended operating conditions unless otherwise specified. T A = 25 ° C, V IN = 3 V and V SHDN = 3 V.)
Symbol
Parameter
Conditions
Min
Typ
Max
Units
Input Voltage Range
2.5
7
V
I Q
I SD
Quiescent Current
Shutdown Current
V FB = 0.2 V
V SHDN = 0 V
0.5
0.05
0.7
1
mA
m A
V FB
I FB
FB Pin Voltage
FB Pin Leakage Current
4 LEDs at 15 mA
85
95
1
105
2
mV
m A
Shutdown High Threshold
Shutdown Low Threshold
0.85
0.25
V
V
I SHDN
Shutdown Pin Current
1
nA
f SW
DC
I SWL
Boost Converter Frequency
Maximum Switch Duty Cycle
Switch Current Limit
Switch Saturation Voltage
Switch Leakage Current
Efficiency
I SW = 300 mA
Switch Off, V SW = 5 V
Figure 1 with specified components
0.8
90
400
1.2
95
550
150
0.01
83
1.6
780
200
5
MHz
%
mA
mV
m A
%
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3
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