Datasheet
6
LTC1263
APPLICATIONS INFORMATION
WUU
U
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
U
Dual Voltage Supply Output at 12V and 19V
1
2
3
4
8
7
6
5
SHDN
GND
V
OUT
V
CC
C1
–
C1
+
C2
–
C2
+
LTC1263
0.47µF
0.47µF
LTC1263 • TA04
10µF
10µF
V
CC
4.75V TO 5.5V
1µF
V
OUT
= 12V
V
+
= 19V**
1µF
1N4148*
IN4148*
*
**
FOR LOWER VOLTAGE DROP, USE SCHOTTKY DIODES
MUST PULL MORE CURRENT OUT OF V
OUT
THAN V
+
Dual Supply Voltage Output at 12V and –7V
1
2
3
4
8
7
6
5
SHDN
GND
V
OUT
V
CC
C1
–
C1
+
C2
–
C2
+
LTC1263
0.47µF
0.47µF
*
**
1µF
LTC1263 • TA05
10µF
10µF
V
CC
4.75V TO 5.5V
V
OUT
= 12V
V
–
= –7V**
1µF
IN4148*
1N4148*
FOR LOWER VOLTAGE DROP, USE SCHOTTKY DIODES
MUST PULL MORE CURRENT OUT OF V
OUT
THAN V
–
1
2
3
4
8
7
6
5
SHDN
GND
V
OUT
V
CC
C1
–
C1
+
C2
–
C2
+
LTC1263
0.47µF
0.47µF
1µF
LTC1263 • TA06
10µF
10µF
V
CC
4.75V TO 5.5V
V
OUT
= 12V
–
+
10k
90.1k
(V
IN
)(10)
LT1006
1µF
1N4148*
1N4148*
V
IN
2
3
7
4
6
(12V)
(–7V)**
*
**
FOR LOWER VOLTAGE DROP, USE SCHOTTKY DIODES
MUST PULL MORE CURRENT OUT OF V
OUT
THAN V
–
Gain of 10 Amplifier Using LT
®
1006 Powered by LTC1263