LTC1263
APPLICATIONS INFORMATION
desired. (The LTC1263 does not require a 0.1µF capacitor
between V
CC
and V
OUT
for stability.)
Besides using it to program flash memories, the LTC1263
can also provide multiple supply voltages with the help of
two diodes and two capacitors. Output voltages of 19V and
– 7V can easily be obtained. In other words, the LTC1263
can power dual supply (±5V) and single supply (15V) op
amps.
TYPICAL APPLICATIONS
Dual Voltage Supply Output at 12V and 19V
1
0.47µF
2
3
0.47µF
4
C1
+
C1
–
SHDN
GND
LTC1263
V
OUT
V
CC
8
0.47µF
7
6
5
10µF
V
OUT
= 12V
10µF
IN4148*
V
CC
4.75V TO 5.5V
1N4148*
V
+
= 19V**
0.47µF
C2
–
C2
+
1µF
* FOR LOWER VOLTAGE DROP, USE SCHOTTKY DIODES
** MUST PULL MORE CURRENT OUT OF V
OUT
THAN V
+
1µF
LTC1263 • TA05
Gain of 10 Amplifier Using LT
®
1006 Powered by LTC1263
(12V)
1
0.47µF
2
3
0.47µF
4
1µF
C1
+
LTC1263
C2
–
C1
–
SHDN
GND
V
OUT
V
CC
1N4148*
6
5
10µF
10µF
V
CC
4.75V TO 5.5V
C2
+
1N4148*
1µF
* FOR LOWER VOLTAGE DROP, USE SCHOTTKY DIODES
** MUST PULL MORE CURRENT OUT OF V
OUT
THAN V
–
(–7V)**
LTC1263 • TA06
6
+
V
OUT
= 12V
3
V
IN
–
U
8
7
W
U
U
U
Dual Supply Voltage Output at 12V and – 7V
1
2
3
4
1µF
C1
–
C1
+
LTC1263
C2
–
C2
+
V
OUT
V
CC
1N4148*
6
5
SHDN
GND
8
7
10µF
V
OUT
= 12V
10µF
V
CC
4.75V TO 5.5V
IN4148*
1µF
LTC1263 • TA04
V
–
= –7V**
*FOR LOWER VOLTAGE DROP, USE SCHOTTKY DIODES
**MUST PULL MORE CURRENT OUT OF V
OUT
THAN V
–
10k
2
7
LT1006
4
6
90.1k
(V
IN
)(10)
LINER [ LINEAR TECHNOLOGY ]
