15

LT1111

S

APPLICATI

TYPICAL

Information furnished by Linear Technology Corporation is believed to be accurate and reliable.

However, no responsibility is assumed for its use. Linear Technology Corporation makes no represen-

tation that the interconnection of its circuits as described herein will not infringe on existing patent rights.

5V to –5V Converter

LT1111 • TA20

LIM

I

FB

GND

LT1111

8V TO 18V

BAT54

L1*

10

µH, 3A

+

220

µF

5V

500mA

0.22

Ω

51

Ω

2k

1N4148

40.2k

121k

OPERATE STANDBY

IN

V

SW1

SW2

MTM20P08

MBRD320

* L1 = SUMIDA CDR105-100M

2N3904

High Power, Low Quiescent Current Step-Down Converter

IN

V

SW2

SW1

LT1111 • TA05

LIM

I

SENSE

GND

100

LT1111-5

MBRS130T3

33

µF

L1*

33

µH

Ω

+

–5V OUTPUT

75mA

22

µF

+

5V INPUT

* L1= SUMIDA CD54-330K

Voltage Controlled Positive-to-Negative Converter

LT1111 • TA07

FB

GND

220

Ω

LT1111

* L1 = COILTRONICS CTX20-4

5V TO 12V

BAT54

220

Ω

L1*

20

µH, 3A

IN

V

LT1006

+

47

µF

39k

200k

2W MAXIMUM OUTPUT

0.22

Ω

MBRD320

IN

V

SW2

SW1

LIM

I

ZETEX

†

ZTX788A