LT1054/LT1054L
TYPICAL APPLICATIONS
Basic Voltage Inverter
Basic Voltage Inverter/Regulator
+
2µF
V
IN
V
FB/SHDN
V
IN
+
+
+
FB/SHDN
V
2µF
+
CAP
OSC
+
LT1054
GND
+
CAP
OSC
100µF
V
REF
+
LT1054
GND
R1
R2
10µF
V
REF
–
–V
100µF
CAP
V
OUT
OUT
–
+
CAP
V
OUT
0.002µF
LT1054 • TAO2
V
OUT
|V
REF
|
|V
|
R2
R1
OUT
OUT
1.21V
=
+ 1 =
+ 1 ,
100µF
V
+
)
)
)
)
– 40mV
2
LT1054 • TA03
REFER TO FIGURE 5
Negative Voltage Doubler
Positive Doubler
V
IN
+
FB/SHDN
V
+
–
3.5V TO 15V
1N4001
100µF
1N4001
V
OUT
+
CAP
OSC
+
+
+
+
LT1054
GND
V
OUT
+
2µF
10µF
FB/SHDN
V
50mA
V
IN
REF
Q *
X
100µF
–
+
–
V
CAP
V
OUT
R *
X
100µF
2µF
+
+
CAP
LT1054
GND
OSC
+
V
REF
V
V
V
= 3.5V TO 15V
IN
OUT
V
IN
≈ 2V – (V + 2V )
V
V
= –3.5V TO –15V
–
IN
L
DIODE
IN
CAP
V
OUT
= LT1054 VOLTAGE LOSS
L
= 2V + (LT1054 VOLTAGE LOSS) + (Q SATURATION VOLTAGE)
OUT
IN
X
LT1054 • TAO5
*SEE FIGURE 3
LT1054 • TAO4
100mA Regulating Negative Doubler
V
IN
3.5 TO 15V
+
2.2µF
+
+
FB/SHDN
V
FB/SHDN
V
HP5082-2810
PIN 2
LT1054 #1
+
+
CAP
OSC
CAP
OSC
V
OUT
+
+
+
+
LT1054 #1
GND
LT1054 #2
GND
20k
SET
10µF
10µF
10µF
10µF
V
V
REF
REF
R1
40k
–
–
CAP
V
OUT
CAP
V
OUT
1N4002
1N4002
10µF
10µF
+
0.002µF
+
R2
500k
1N4002
1N4002
–V
OUT
OUT
I
≅ 100mA MAX
1N4002
V
V
= 3.5 TO 15V
100µF
IN
+
LT1054 • TAO6
MAX ≈ –2V + [1054 VOLTAGE LOSS + 2(V )]
OUT
IN
DIODE
|V
REF
|
|V
|
OUT
R2
R1
OUT
=
+ 1 =
+ 1
, REFER TO FIGURE 5
V
1.21V
– 40mV
)
)
)
)
2
1054lfg
10
Linear [ Linear ]
