LT1959 Ver la hoja de datos (PDF) - Linear Technology

Número de pieza

componentes Descripción

Fabricante

LT1959

4.5A, 500kHz Step-Down Switching Regulator

Linear Technology 

LT1959

PACKAGE DESCRIPTION Dimensions in inches (millimeters) unless otherwise noted.

R Package

7-Lead Plastic DD Pak

(LTC DWG # 05-08-1462)

0.256

(6.502)

0.060

(1.524)

0.060

(1.524)

0.183

(4.648)

0.075

(1.905)

0.300

(7.620)

BOTTOM VIEW OF DD PAK

HATCHED AREA IS SOLDER PLATED

COPPER HEAT SINK

0.060

(1.524)

TYP

0.330 – 0.370

(8.382 – 9.398)

0.143

+0.012

–0.020

( ) 3.632

+0.305

–0.508

0.390 – 0.415

(9.906 – 10.541)

15° TYP

0.165 – 0.180

(4.191 – 4.572)

0.059

(1.499)

TYP

0.050

(1.27)

0.026 – 0.036 BSC

(0.660 – 0.914)

0.013 – 0.023

(0.330 – 0.584)

0.045 – 0.055

(1.143 – 1.397)

0.004

+0.008

–0.004

( ) 0.102

+0.203

–0.102

0.095 – 0.115

(2.413 – 2.921)

0.050 ± 0.012

(1.270 ± 0.305)

R (DD7) 1098

S8 Package

8-Lead Plastic Small Outline (Narrow 0.150)

(LTC DWG # 05-08-1610)

0.010

(0.254

–

–

0.020

0.508)

×

45°

0.008 – 0.010

(0.203 – 0.254)

0.053 – 0.069

(1.346 – 1.752)

0°– 8° TYP

0.016 – 0.050

(0.406 – 1.270)

0.014 – 0.019

(0.355 – 0.483)

TYP

*DIMENSION DOES NOT INCLUDE MOLD FLASH. MOLD FLASH

SHALL NOT EXCEED 0.006" (0.152mm) PER SIDE

**DIMENSION DOES NOT INCLUDE INTERLEAD FLASH. INTERLEAD

FLASH SHALL NOT EXCEED 0.010" (0.254mm) PER SIDE

0.004 – 0.010

(0.101 – 0.254)

0.050

(1.270)

BSC

0.228 – 0.244

(5.791 – 6.197)

0.189 – 0.197*

(4.801 – 5.004)

8

7

6

5

1

2

34

0.150 – 0.157**

(3.810 – 3.988)

SO8 1298

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24 Linear Technology Corporation

1630 McCarthy Blvd., Milpitas, CA 95035-7417

(408)432-1900 q FAX:(408)434-0507 q www.linear-tech.com

1959f LT/TP 0500 4K • PRINTED IN USA

© LINEAR TECHNOLOGY CORPORATION 2000

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