LTC3450EUD(RevA) 查看數據表（PDF） - Linear Technology

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LTC3450EUD
(Rev.:RevA)

Triple Output Power Supply for Small TFT-LCD Displays

Linear Technology 

LTC3450

APPLICATIO S I FOR ATIO

V3X

JUMPER

MODE

SHDN

VNEG

VOUT

VIN

NOTE: QFN PACKAGE EXPOSED PAD

IS CONNECTED TO THE VNEG PIN.

DO NOT CONNECT EXPOSED PAD TO GROUND

GND

3450 F03

Figure 3. Suggested Layout

TYPICAL APPLICATIO

5.1V, –15V, 15V Triple Output TFT-LCD Supply

VIN

1.5V TO

4.6V

L1

47µH

C1

2.2µF

BLANK SCAN

OFF ON

8

7

6

SW

VIN

VOUT

C1

+

11

C1– 10

4 MODE

V2X 12

LTC3450 C2+ 14

5

SHDN

C2– 13

V3X 15

9 GND

VNEG

C3– C3+VINV 16

3 21

CF3

0.1µF

D1, D2: DUAL SCHOTTKY DIODE, PANASONIC MA704WKCT

L1: SUMIDA CMD4D08-470

C2

2.2µF

CF1

0.1µF

AVDD

5.1V/10mA

C4

CF2

0.47µF

0.1µF

D1

VGH

15V/500µA

C6

D2

0.1µF

0.1µF

C5

0.1µF

VGL

–15V/500µA

3450 TA02

10

3450fa

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