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LT1054 Datasheet(PDF) 6 Page - Texas Instruments

Part No. LT1054
Description  SWITCHED-CAPACITOR VOLTAGE CONVERTERS WITH REGULATORS
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Maker  TI [Texas Instruments]
Homepage  http://www.ti.com
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LT1054 Datasheet(HTML) 6 Page - Texas Instruments

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LT1054
SWITCHEDCAPACITOR VOLTAGE CONVERTERS
WITH REGULATORS
SLVS033F − FEBRUARY 1990 − REVISED NOVEMBER 2004
6
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
TYPICAL CHARACTERISTICS
Figure 5
40
20
120
0
020
40
60
80
60
100
AVERAGE SUPPLY CURRENT
vs
OUTPUT CURRENT
140
80
100
IO − Output Current − mA
0.4
0.2
1.2
0
0
10
20304050
60
0.8
0.6
1.0
OUTPUT VOLTAGE LOSS
vs
INPUT CAPACITANCE
1.4
70
80
90
100
IO = 100 mA
IO = 50 mA
IO = 10 mA
Inverter Configuration
COUT = 100-µF Tantalum
fOSC = 25 kHz
Input Capacitance −
µF
Figure 6
0
1
10
100
OUTPUT VOLTAGE LOSS
vs
OSCILLATOR FREQUENCY
2
1
IO = 100 mA
IO = 50 mA
IO = 10 mA
Inverter Configuration
CIN = 10-µF Tantalum
COUT = 100-µF Tantalum
Oscillator Frequency − kHz
0.75
0.5
0.25
1.25
1.5
1.75
2.25
2.5
Figure 7
0
1
10
100
OUTPUT VOLTAGE LOSS
vs
OSCILLATOR FREQUENCY
2
1
IO = 100 mA
IO = 50 mA
IO = 10 mA
Inverter Configuration
CIN = 100-µF Tantalum
COUT = 100-µF Tantalum
Oscillator Frequency − kHz
0.25
0.5
0.75
1.25
1.5
1.75
2.25
2.5
Figure 8


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