CHARGE PUMP DC-TO-DC
VOLTAGE CONVERTER
TC1044S
TYPICAL CHARACTERISTICS (Cont.)
Output Source Resistance vs. Supply Voltage
100
Output Source Resistance vs. Temperature
100
70
50
VIN = 2.5V
80
60
40
20
0
VIN = 5.5V
30
IOUT = 20mA
TA = 25°C
10
1.5 2.5 3.5 4.5 5.5 6.5 7.5 8.5 9.5 10.511.5 12
-40
-20
0
20
40
60
80
100
SUPPLY VOLTAGE (V)
TEMPERATURE (°C)
Output Voltage vs. Output Current
Power Conversion Efficiency vs. Load
100
90
80
70
60
50
40
30
20
10
0
0
Boost Pin = Open
-2
-4
+
Boost Pin = V
-6
-8
-10
-12
0
10 20 30 40 50 60 70 80 90 100
OUTPUT CURRENT (mA)
LOAD CURRENT (mA)
Supply Current vs. Temperature
200
175
150
125
100
75
VIN = 12.5V
VIN = 5.5V
50
25
0
-40
-20
0
20
40
60
80
100
TEMPERATURE (°C)
4-50
TELCOM SEMICONDUCTOR, INC.
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