LT1054_06 Datasheet, PDF (15/27 Pages) Texas Instruments – SWITCHED-CAPACITOR VOLTAGE CONVERTERS WITH REGULATORS

LT1054
SWITCHEDĆCAPACITOR VOLTAGE CONVERTERS
WITH REGULATORS
SLVS033F − FEBRUARY 1990 − REVISED NOVEMBER 2004
APPLICATION INFORMATION
+
10 µF
Pin numbers shown are for the P package.
1
FB/SD
8
VCC
2
CAP+
7
OSC
3
GND
LT1054
6
VREF
4
CAP−
5
VOUT
+
VIN
2 µF
−VOUT
+ ^{100 µF}
Figure 19. Basic Voltage Inverter
+
10 µF
1
FB/SD
8
VCC
2
CAP+
7
OSC
LT1054
3
6
GND
VREF
4
CAP−
5
VOUT
VIN
+
2 µF
R1
20 kΩ
R2
VOUT
+
0.002 µF
+
100 µF
ǒ Ǔ ǒ Ǔ R2 + R1
Ť Ť _VOUT
VREF
2
*
40
mV
)1
+ 20 kW
Ť_VOUTŤ
1.21 V
)
1
Pin numbers shown are for the P package.
Figure 20. Basic Voltage Inverter/Regulator
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15