Datasheet

LT1054
SWITCHED-CAPACITOR VOLTAGE CONVERTERS
WITH REGULATORS
SLVS033F − FEBRUARY 1990 − REVISED NOVEMBER 2004
15
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
APPLICATION INFORMATION
−V
OUT
V
IN
LT1054
V
OUT
V
REF
OSC
V
CC
CAP−
GND
CAP+
FB/SD
10 μF
Pin numbers shown are for the P package.
+
1
2
3
4
8
7
6
5
+
+
2 μF
100 μF
Figure 19. Basic Voltage Inverter
R2
R1
20 kΩ
LT1054
V
OUT
V
REF
OSC
V
CC
CAP−
GND
CAP+
FB/SD
V
OUT
100 μF
0.002 μF
10 μF
Pin numbers shown are for the P package.
R2 + R1
ǒ
Ť
V
OUT
Ť
V
REF
2
* 40 mV
) 1
Ǔ
+ 20 kW
ǒ
Ť
V
OUT
Ť
1.21 V
) 1
Ǔ
1
2
3
4
8
7
6
5
+
++
V
IN
+
2 μF
Figure 20. Basic Voltage Inverter/Regulator