LTC1263CS8 datasheet(6/8 Pages) LINER

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LTC1263

APPLICATIONS INFORMATION

desired. (The LTC1263 does not require a 0.1

µF capacitor

between VCC and VOUT 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

SHDN

GND

VOUT

VCC

C1–

C1+

C2–

C2+

LTC1263

0.47

µF

0.47

µF

LTC1263 • TA04

µF

VCC

4.75V TO 5.5V

µF

VOUT = 12V

V+ = 19V**

µF

1N4148*

IN4148*

FOR LOWER VOLTAGE DROP, USE SCHOTTKY DIODES

MUST PULL MORE CURRENT OUT OF VOUT THAN V

Dual Supply Voltage Output at 12V and – 7V

SHDN

GND

VOUT

VCC

C1–

C1+

C2–

C2+

LTC1263

0.47

µF

0.47

µF

LTC1263 • TA05

µF

VCC

4.75V TO 5.5V

VOUT = 12V

V– = –7V**

µF

IN4148*

1N4148*

FOR LOWER VOLTAGE DROP, USE SCHOTTKY DIODES

MUST PULL MORE CURRENT OUT OF VOUT THAN V

–

SHDN

GND

VOUT

VCC

C1–

C1+

C2–

C2+

LTC1263

0.47

µF

0.47

µF

LTC1263 • TA06

µF

VCC

4.75V TO 5.5V

VOUT = 12V

10k

90.1k

(VIN)(10)

LT1006

µF

1N4148*

VIN

(12V)

(–7V)**

FOR LOWER VOLTAGE DROP, USE SCHOTTKY DIODES

MUST PULL MORE CURRENT OUT OF VOUT THAN V

–

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