6

LTC1263

desired. (The LTC1263 does not require a 0.1

µF capacitor

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.

Dual Voltage Supply Output at 12V and 19V

1

2

3

4

8

7

6

5

SHDN

GND

LTC1263

0.47

µF

0.47

µF

LTC1263 • TA04

10

µF

10

µF

4.75V TO 5.5V

1

µF

1

µF

1N4148*

IN4148*

*

**

FOR LOWER VOLTAGE DROP, USE SCHOTTKY DIODES

+

Dual Supply Voltage Output at 12V and – 7V

1

2

3

4

8

7

6

5

SHDN

GND

LTC1263

0.47

µF

0.47

µF

*

**

1

µF

LTC1263 • TA05

10

µF

10

µF

4.75V TO 5.5V

1

µF

IN4148*

1N4148*

FOR LOWER VOLTAGE DROP, USE SCHOTTKY DIODES

–

1

2

3

4

8

7

6

5

SHDN

GND

LTC1263

0.47

µF

0.47

µF

1

µF

LTC1263 • TA06

10

µF

10

µF

4.75V TO 5.5V

10k

90.1k

LT1006

1

µF

1N4148*

1N4148*

2

3

7

4

6

(12V)

(–7V)**

*

**

FOR LOWER VOLTAGE DROP, USE SCHOTTKY DIODES

–