16

LT1769

1769fa

LT/TP 1101 1.5K REV A • PRINTED IN USA

©LINEAR TECHNOLOGY CORPORATION 1999

Linear Technology Corporation

1630 McCarthy Blvd., Milpitas, CA 95035-7417

PART NUMBER

DESCRIPTION

COMMENTS

LT1372/LT1377

500kHz/1MHz Step-Up Switching Regulators

High Frequency, Small Inductor, High Efficiency Switchers, 1.5A Switch

LT1376

500kHz Step-Down Switching Regulator

High Frequency, Small Inductor, High Efficiency Switcher, 1.5A Switch

LT1505

High Current, High Efficiency Battery Charger

94% Efficiency, Synchronous Current Mode PWM

LT1510

Constant-Voltage/Constant-Current Battery Charger

Up to 1.5A Charge Current for Lithium-Ion, NiCd and NiMH Batteries

LT1511

Constant-Voltage/Constant-Current Battery Charger

Up to 3A Charge Current for Lithium-Ion, NiCd and NiMH Batteries

LT1512/LT1513

SEPIC Battery Chargers

LTC1729

Li-Ion Battery Charger Termination Controller

Preconditioning If Cell < 2.7V, 3hr Time-Out, C/10 Detection, Temp Sensor

Pin, Charger and Battery Detection

LTC1759

SMBus Smart Battery Charger

LTC1960

Dual Battery Charger and Selector with SPI Interface

RELATED PARTS

GN Package

28-Lead Plastic SSOP (Narrow .150 Inch)

(Reference LTC DWG # 05-08-1641)

GN28 (SSOP) 1098

* 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

0.016 – 0.050

(0.406 – 1.270)

0.015

± 0.004

(0.38

± 0.10)

× 45°

0

° – 8° TYP

0.0075 – 0.0098

(0.191 – 0.249)

0.053 – 0.069

(1.351 – 1.748)

0.008 – 0.012

(0.203 – 0.305)

0.004 – 0.009

(0.102 – 0.249)

0.0250

(0.635)

BSC

0.386 – 0.393*

(9.804 – 9.982)

12

3

4

5

6

7

8

9 10 11 12

0.229 – 0.244

(5.817 – 6.198)

0.150 – 0.157**

(3.810 – 3.988)

20

21

22

23

24

25

26

27

28

19 18 17

13 14

1615

0.033

(0.838)

REF

FE Package

20-Lead Plastic TSSOP (4.4mm)

(Reference LTC DWG # 05-08-1663)

Exposed Pad Variation CB

FE20 (CB) TSSOP 0203

0.09 – 0.20

(.0036 – .0079)

0

° – 8°

RECOMMENDED SOLDER PAD LAYOUT

0.45 – 0.75

(.018 – .030)

4.30 – 4.50*

(.169 – .177)

1.20

(.047)

MAX

0.05 – 0.15

(.002 – .006)

0.65

(.0256)

BSC

0.195 – 0.30

(.0077 – .0118)

2.74

(.108)

0.45

±0.05

0.65 BSC

4.50

±0.10

6.60

±0.10

1.05

±0.10

3.86

(.152)

6.40

BSC

13

4

5

6 7 89 10

11

12

14 13

6.40 – 6.60*

(.252 – .260)

3.86

(.152)

2.74

(.108)

20 1918 17 16 15

2

MILLIMETERS

(INCHES)

*DIMENSIONS DO NOT INCLUDE MOLD FLASH. MOLD FLASH

SHALL NOT EXCEED 0.150mm (.006") PER SIDE

NOTE:

1. CONTROLLING DIMENSION: MILLIMETERS

2. DIMENSIONS ARE IN

3. DRAWING NOT TO SCALE

SEE NOTE 4

4. RECOMMENDED MINIMUM PCB METAL SIZE

FOR EXPOSED PAD ATTACHMENT