19

LT1339

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.

SW Package

20-Lead Plastic Small Outline (Wide 0.300)

(LTC DWG # 05-08-1620)

S20 (WIDE) 0396

NOTE 1

0.496 – 0.512*

(12.598 – 13.005)

20

19

18

17

16

15

14

13

1

23

4

5

6

78

0.394 – 0.419

(10.007 – 10.643)

910

11

12

0.037 – 0.045

(0.940 – 1.143)

0.004 – 0.012

(0.102 – 0.305)

0.093 – 0.104

(2.362 – 2.642)

0.050

(1.270)

TYP

0.014 – 0.019

(0.356 – 0.482)

TYP

0

° – 8° TYP

NOTE 1

0.009 – 0.013

(0.229 – 0.330)

0.016 – 0.050

(0.406 – 1.270)

0.291 – 0.299**

(7.391 – 7.595)

× 45°

0.010 – 0.029

(0.254 – 0.737)

NOTE:

1. PIN 1 IDENT, NOTCH ON TOP AND CAVITIES ON THE BOTTOM OF PACKAGES ARE THE MANUFACTURING OPTIONS.

THE PART MAY BE SUPPLIED WITH OR WITHOUT ANY OF THE OPTIONS

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

*

**

N Package

20-Lead PDIP (Narrow 0.300)

(LTC DWG # 05-08-1510)

N20 1197

0.020

(0.508)

MIN

0.125

(3.175)

MIN

0.130

± 0.005

(3.302

± 0.127)

0.065

(1.651)

TYP

0.045 – 0.065

(1.143 – 1.651)

0.018

± 0.003

(0.457

± 0.076)

0.005

(0.127)

MIN

0.100

± 0.010

(2.540

± 0.254)

0.009 – 0.015

(0.229 – 0.381)

0.300 – 0.325

(7.620 – 8.255)

0.325

+0.035

–0.015

+0.889

–0.381

8.255

()

0.255

± 0.015*

(6.477

± 0.381)

1.040*

(26.416)

MAX

12

3

4

5

6

7

8

910

19

11

12

13

14

16

15

17

18

20

*THESE DIMENSIONS DO NOT INCLUDE MOLD FLASH OR PROTRUSIONS.

MOLD FLASH OR PROTRUSIONS SHALL NOT EXCEED 0.010 INCH (0.254mm)

5V to 28V DC/DC Synchronous Boost Converter Limits Input Current at 60A (DC)

TG

TS

BG

PGND

PHASE

RUN/SHDN

12V

47

µF

IRF3205

× 2

IRF3205

× 4

L1

40

µH

5V AT 60A

SYNC

CT

SL/ADJ

SS

SGND

LT1339

+

CBST

1

µF

+

2200

µF

6.3V

× 4

+

1

µF

+

100k

10k

2200pF

2200pF

1339 TA04

L1 = 12T 4X12 ON 77439-A7

1

µF

DBST

MBR0530

Q1

FMMT619

Q2

FMMT720

Q3

FMMT619

Q4

FMMT720

D2

MBR0520

D1

IR30BQ060

× 8

100

Ω

0.002

Ω

2200

µF

35V

× 6

+

28V

+

+