LT1977 Linear Technology, LT1977 Datasheet - Page 23

• Manufacturer Part Number: LT1977
• Description: Step-Down Switching Regulator
• Manufacturer: Linear Technology

PACKAGE DESCRIPTIO
6.60 ±0.10
NOTE:
1. CONTROLLING DIMENSION: MILLIMETERS
2. DIMENSIONS ARE IN
3. DRAWING NOT TO SCALE
(.0035 – .0079)
0.09 – 0.20
4.50 ±0.10
RECOMMENDED SOLDER PAD LAYOUT
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.
(.169 – .177)
SEE NOTE 4
4.30 – 4.50*
(.020 – .030)
(.141)
0.50 – 0.75
MILLIMETERS
3.58
0.65 BSC
(INCHES)
U
0.45 ±0.05
16-Lead Plastic TSSOP (4.4mm)
(.116)
(Reference LTC DWG # 05-08-1663)
2.94
1.05 ±0.10
Exposed Pad Variation BC
0.25
REF
*DIMENSIONS DO NOT INCLUDE MOLD FLASH. MOLD FLASH
4. RECOMMENDED MINIMUM PCB METAL SIZE
SHALL NOT EXCEED 0.150mm (.006") PER SIDE
FOR EXPOSED PAD ATTACHMENT
0° – 8°
FE Package
(.0256)
0.65
BSC
16 1514 13 12 11
1
(.0077 – .0118)
0.195 – 0.30
2
TYP
(.193 – .201)
3 4 5 6 7 8
4.90 – 5.10*
(.141)
3.58
10
9
(.002 – .006)
0.05 – 0.15
FE16 (BC) TSSOP 0204
(.0433)
(.116)
2.94
MAX
1.10
(.252)
6.40
BSC
LT1977
23
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