Datasheet

LT1054
SWITCHED-CAPACITOR VOLTAGE CONVERTERS
WITH REGULATORS
SLVS033F − FEBRUARY 1990 − REVISED NOVEMBER 2004
5
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
TYPICAL CHARACTERISTICS
†
Figure 1
0.3
0.2
0.1
0
−50 −25 0 25 50 75 100
Shutdown Threshold Voltage − V
0.4
0.5
SHUTDOWN THRESHOLD VOLTAGE
vs
FREE-AIR TEMPERATURE
0.6
T
A
− Free-Air Temperature − °C
V
(FB/SD)
Figure 2
2
1
0
0 5 10 15
− Supply Current − mA
3
4
SUPPLY CURRENT
vs
INPUT VOLTAGE
5
CC
I
I
O
= 0
V
CC
− Input Voltage − V
25
15
−50 −25 0 25 50 75
Oscillator Frequency − kHz
OSCILLATOR FREQUENCY
vs
FREE-AIR TEMPERATURE
35
100
21
V
CC
= 15 V
V
CC
= 3.5 V
T
A
− Free-Air Temperature − °C
19
17
23
27
29
31
33
Figure 3 Figure 4
60
40
20
0
05
Supply Current in Shutdown −
80
100
SUPPLY CURRENT IN SHUTDOWN
vs
INPUT VOLTAGE
120
10
15
μA
V
CC
− Input Voltage − V
V
(FB/SD
) = 0
†
Data at high and low temperatures are applicable only within the recommended operating free-air temperature range.