LTC1538-AUX/LTC1539

Dimensions in inches (millimeters) unless otherwise noted.

PACKAGE DESCRIPTION

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.

G Package

28-Lead Plastic SSOP (0.209)

(LTC DWG # 05-08-1640)

G28 SSOP 0694

0.005 – 0.009

(0.13 – 0.22)

0° – 8°

0.022 – 0.037

(0.55 – 0.95)

0.205 – 0.212**

(5.20 – 5.38)

0.301 – 0.311

(7.65 – 7.90)

1234

8 9 10 11 12 1413

0.397 – 0.407*

(10.07 – 10.33)



2526 22 21 20 19 18

16 1523242728

0.068 – 0.078

(1.73 – 1.99)

0.002 – 0.008

(0.05 – 0.21)

0.0256

(0.65)

BSC

0.010 – 0.015

(0.25 – 0.38)

DIMENSIONS DO NOT INCLUDE MOLD FLASH. MOLD FLASH 

SHALL NOT EXCEED 0.006" (0.152mm) PER SIDE

DIMENSIONS DO NOT INCLUDE INTERLEAD FLASH. INTERLEAD 

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



*



GW Package

36-Lead Plastic SSOP (Wide 0.300)

(LTC DWG # 05-08-1642)

GW36 SSOP 0795

0° – 8° TYP

0.009 – 0.012

(0.231 – 0.305)

0.024 – 0.040

(0.610 – 1.016)

0.292 – 0.299**

(7.417 – 7.595)

× 45°

0.010 – 0.016

(0.254 – 0.406)

0.090 – 0.094

(2.286 – 2.387)

0.005 – 0.012

(0.127 – 0.305)

0.097 – 0.104

(2.463 – 2.641)

0.031

(0.800)

TYP

0.012 – 0.017

(0.304 – 0.431)

0.602 – 0.612*

(15.290 – 15.544)

123456789101112131415161718

0.400 – 0.410

(10.160 – 10.414)

36 35 34 33 32 31 30 29 28 27 26 25 24 23 22 21 20 19

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

LTC1538-AUX/LTC1539

Linear Technology Corporation

1630 McCarthy Blvd., Milpitas, CA 95035-7417

(408) 432-1900

●

FAX

: (408) 434-0507

●

TELEX

: 499-3977

LT/GP 0896 7K • PRINTED IN USA

 LINEAR TECHNOLOGY CORPORATION 1996

TYPICAL APPLICATION

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LTC1539

AUXDR

AUXFB

AUXON

1538 TA05

6.8nF

22pF

47k

27Ω

100Ω

316k

221k

Q1

MMBT2907ALTI

10Ω

330µF

× 2

ZETEX

FZT849

(SURFACE MOUNT)

3.3V

2.9V

ON/OFF

Part #	LTC1538CG-AUX
Description	IC REG CTRLR BUCK PWM CM 28-SSOP
Category	IC
Availability	In Stock
Qty	85

Qty	Price
1 - 17	$9.35307
18 - 35	$7.43994
36 - 53	$7.01480
54 - 71	$6.51881
72 +	$5.81024

LTC1538CG-AUX

Related Items

Technical Document