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
(408) 432-1900
●
FAX: (408) 434-0507
●
www.linear.com
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 V
IN
Can Be Higher or Lower Than Battery Voltage
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 94% Efficiency with Input Current Limiting, Up to 8A I
CHG
LTC1960 Dual Battery Charger and Selector with SPI Interface I
CHARGE
Up to 6A, Fast Charge, Longer Battery Life, Crisis Management
RELATED PARTS
PACKAGE DESCRIPTION
U
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)
202122232425262728
19
18
17
13 14
16
15
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
134
5
6
7
8910
111214 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
