LT1111CS8-12(RevC) 查看數據表（PDF） - Linear Technology

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LT1111CS8-12
(Rev.:RevC)

Micropower DC/DC Converter Adjustable and Fixed 5V, 12V

Linear Technology 

LT1111

TYPICAL APPLICATI S

3V to – 22V LCD Bias Generator

L1*

27µH

1N4148

2 × 1.5V

CELLS

R1

100Ω

ILIM

V IN

SW1

732k

1%

3V

LT1111

FB

GND

SW2

+

4.7µF

39.2k

1%

MBRS130T3

MBRS130T3

0.1µF

* L1 = SUMIDA CD54-270K

FOR 5V INPUT CHANGE R1 TO 47Ω.

CONVERTER WILL DELIVER –22V AT 40mA.

+

22µF 220k

–22V OUTPUT

7mA AT 2V INPUT

LT1111 • TA03

9V to 5V Step-Down Converter

9V

BATTERY

100Ω

ILIM

V IN

SW1

LT1111-5

SENSE

GND

SW2 L1*

15µH

5V OUTPUT

150mA AT 9V INPUT

+

50mA AT 6.5V INPUT

MBRS130T3

22µF

* L1 = SUMIDA CD54-150K

LT1111 • TA04

20V to 5V Step-Down Converter

VIN

12V TO 28V

100Ω

ILIM

V IN

SW1

LT1111-5

SENSE

GND

SW2

L1*

68µH

+

MBRS130T3

5V OUTPUT

300mA

47µF

* L1 = SUMIDA CD74-680M

LT1111 • TA06

14

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