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LTC1263CS8

12V, 60mA Flash Memory Programming Supply

Linear Technology 

LTC1263

12V, 60mA Flash Memory

Programming Supply

FEATURES

s Guaranteed 60mA Output

s Regulated 12V ±5% Output Voltage

s No Inductors

s Supply Voltage Range: 4.75V to 5.5V

s ICC 0.5µA Typ in Shutdown

s Low Power: ICC = 300µA

s 8-Pin SO Package

s Same Pinout as LTC1262 and MAX662

U

APPLICATIONS

s 12V Flash Memory Programming Supplies

s Compact 12V Op Amp Supplies

s Battery-Powered Systems

DESCRIPTION

The LTC®1263 is a regulated 12V, 60mA output DC/DC

converter. It provides the 12V ±5% output necessary to

program double byte-wide flash memories. The output

provides 60mA from input voltages as low as 4.75V

without using any inductors. Only four external capacitors

are required to complete an extremely small, surface

mountable circuit. The output can be momentarily shorted

to ground without damaging the part.

The active high TTL compatible Shutdown pin can be

directly connected to a microprocessor. In the shutdown

mode, the supply current typically drops to 0.5µA.

The LTC1263 is available in an 8-pin SO package.

, LTC and LT are registered trademarks of Linear Technology Corporation.

TYPICAL APPLICATION

Flash Memory Programming Supply

VCC

4.75V TO 5.5V

0.47µF

0.47µF

10µF

C1–

VCC SHDN ON

SHDN

µP

C1+

LTC1263

12V

C2–

VOUT

5V

C2+ GND

10µF

FLASH

MEMORY

VPP

LTC1263 • TA01

Output Voltage vs Load

13.0

12.8

12.6

12.4

12.2

12.0

11.8

11.6

11.4

11.2

11.0

0

20 40 60 80 100

LOAD CURRENT (mA)

LTC1263 • TA02

1

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