LTC1159CS 查看數據表（PDF） - Linear Technology

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LTC1159CS

High Efficiency Synchronous Step-Down Switching Regulators

Linear Technology 

LTC1159

LTC1159-3.3/LTC1159-5

TYPICAL APPLICATIO S

VIN

5.5V TO 24V

BAS16 BAS16

Si9435DY

Si9435DY

+ 47µF

25V × 2

OS-CON

1µF

WIMA

1

P-GATE

CAP 16

0.22µF

0.33µF

2

VIN

3

VCC

4

P-DRIVE

SHDN2

15

0V = NORMAL

>2V = SHUTDOWN

EXTVCC 14

N-GATE 13

Si9410DY

+

5

LTC1159

12

VCC

PGND

2.2µF

1000pF

6

CT

7

ITH

SGND 11

VFB 10

56pF 24.9k

1%

2200pF 8 SENSE–

SENSE+ 9

1k

100Ω

1000pF

100Ω

BAS16

+

10µF

T*

•

•

MBRS140T3

1µF

•

BAS16 100k

Si9410DY

124k

1%

102k

1%

0.01µF 1k

3

1

RSENSE**

2 0.02Ω

4

*HURRICANE LAB HL-8700

**KRL SL-1-R020J

BAS16

LTC1159 • F14

5V

OUTPUT

+ 220µF

10V × 2

AVX

220µF

10V × 4

AVX

3.3V

OUTPUT

Figure 14. 17W Dual Output High Efficiency 5V and 3.3V Regulator

PACKAGE DESCRIPTIO

G Package

20-Lead Plastic SSOP (5.3mm)

(Reference LTC DWG # 05-08-1640)

5.20 – 5.38**

(.205 – .212)

1.73 – 1.99

(.068 – .078)

7.07 – 7.33*

(.278 – .289)

20 19 18 17 16 15 14 13 12 11

0° – 8°

.13 – .22

(.005 – .009)

.55 – .95

(.022 – .037)

NOTE:

1. CONTROLLING DIMENSION: MILLIMETERS

2.

DIMENSIONS

ARE

IN

MILLIMETERS

(INCHES)

.65

(.0256)

BSC

3. DRAWING NOT TO SCALE

*DIMENSIONS DO NOT INCLUDE MOLD FLASH. MOLD FLASH

SHALL NOT EXCEED .152mm (.006") PER SIDE

**DIMENSIONS DO NOT INCLUDE INTERLEAD FLASH. INTERLEAD

FLASH SHALL NOT EXCEED .254mm (.010") PER SIDE

.25 – .38

(.010 – .015)

.05 – .21

(.002 – .008)

7.65 – 7.90

(.301 – .311)

1 2 3 4 5 6 7 8 9 10 G20 SSOP 0501

18

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