LTC1773EMS データシートの表示（PDF） - Linear Technology

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LTC1773EMS

Synchronous Step-Down DC/DC Controller

Linear Technology 

TYPICAL APPLICATIONS

33pF

30k

0.1µF

200pF

LTC1773

1

ITH

10

SW

2 RUN/SS SENSE– 9

3

VIN SYNC/FCB

4

VFB

5

GND

8

VIN

7

TG

6

BG

100k

80.6k

1%

1%

RSENSE

0.04Ω

L1

2.5µH

Si9942DY

4.5V ≤ VIN ≤ 5.5V

VOUT

1.8V

2A

COUT

47µF

10V

CIN

47µF

10V

CIN, COUT: TAIYO YUDEN LMK550BJ476MM

L1: CDRH5D28

RSENSE: IRC LR1206-01-R040-F

Figure 15. 5V to 1.8V/2A Regulator with Ceramic Capacitors

1773 TA09

LTC1773

PACKAGE DESCRIPTIO

MS Package

10-Lead Plastic MSOP

(Reference LTC DWG # 05-08-1661)

0.889 ± 0.127

(.035 ± .005)

5.23

(.206)

MIN

3.20 – 3.45

(.126 – .136)

0.305 ± 0.038

(.0120 ± .0015)

TYP

0.50

(.0197)

BSC

RECOMMENDED SOLDER PAD LAYOUT

0.254

(.010)

GAUGE PLANE

DETAIL “A”

0° – 6° TYP

0.18

(.007)

0.53 ± 0.152

(.021 ± .006)

DETAIL “A”

NOTE:

1. DIMENSIONS IN MILLIMETER/(INCH)

2. DRAWING NOT TO SCALE

3. DIMENSION DOES NOT INCLUDE MOLD FLASH, PROTRUSIONS OR GATE BURRS.

MOLD FLASH, PROTRUSIONS OR GATE BURRS SHALL NOT EXCEED 0.152mm (.006") PER SIDE

3.00 ± 0.102

(.118 ± .004)

(NOTE 3)

10 9 8 7 6

0.497 ± 0.076

(.0196 ± .003)

REF

4.90 ± 0.152

(.193 ± .006)

3.00 ± 0.102

(.118 ± .004)

(NOTE 4)

12345

1.10

(.043)

MAX

0.86

(.034)

REF

SEATING

PLANE

0.17 – 0.27

(.007 – .011)

TYP

0.50

(.0197)

BSC

0.127 ± 0.076

(.005 ± .003)

MSOP (MS) 0603

4. DIMENSION DOES NOT INCLUDE INTERLEAD FLASH OR PROTRUSIONS.

INTERLEAD FLASH OR PROTRUSIONS SHALL NOT EXCEED 0.152mm (.006") PER SIDE

5. LEAD COPLANARITY (BOTTOM OF LEADS AFTER FORMING) SHALL BE 0.102mm (.004") MAX

1773fb

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.

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