LT1054 Datasheet, PDF (5/26 Pages) Linear Technology – Switched-Capacitor Voltage Converter with Regulator

LT1054
SWITCHEDĆCAPACITOR VOLTAGE CONVERTERS
WITH REGULATORS
SLVS033F − FEBRUARY 1990 − REVISED NOVEMBER 2004
TYPICAL CHARACTERISTICS^†
SHUTDOWN THRESHOLD VOLTAGE
vs
FREE-AIR TEMPERATURE
0.6
0.5
0.4
V(FB/SD)
0.3
0.2
5
IO = 0
4
SUPPLY CURRENT
vs
INPUT VOLTAGE
3
2
0.1
1
0
0
−50 −25
0
25
50
75
100
0
5
10
15
TA − Free-Air Temperature − °C
VCC − Input Voltage − V
Figure 1
Figure 2
OSCILLATOR FREQUENCY
vs
FREE-AIR TEMPERATURE
35
33
31
29
VCC = 15 V
27
25
VCC = 3.5 V
23
21
19
17
15
−50 −25
0
25
50
75
100
TA − Free-Air Temperature − °C
Figure 3
SUPPLY CURRENT IN SHUTDOWN
vs
INPUT VOLTAGE
120
100
V(FB/SD) = 0
80
60
40
20
0
0
5
10
15
VCC − Input Voltage − V
Figure 4
† _{Data at high and low temperatures are applicable only within the recommended operating free-air temperature range.}
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