LTC4098EUDC-PBF 查看數據表（PDF） - Linear Technology

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LTC4098EUDC-PBF

USB Compatible Switching Power Managers/Li-Ion Chargers with Overvoltage Protection

Linear Technology 

LTC4098/LTC4098-1

PACKAGE DESCRIPTION

UDC Package

20-Lead Plastic QFN (3mm × 4mm)

(Reference LTC DWG # 05-08-1742 Rev Ø)

3.50 ± 0.05

2.10 ± 0.05

1.50 REF

2.65 ± 0.05

1.65 ± 0.05

0.70 ±0.05

PACKAGE OUTLINE

0.25 ±0.05

0.50 BSC

2.50 REF

3.10 ± 0.05

4.50 ± 0.05

RECOMMENDED SOLDER PAD PITCH AND DIMENSIONS

APPLY SOLDER MASK TO AREAS THAT ARE NOT SOLDERED

3.00 ± 0.10

0.75 ± 0.05

R = 0.05 TYP

4.00 ± 0.10

PIN 1

TOP MARK

(NOTE 6)

2.50 REF

1.50 REF

19 20

2.65 ± 0.10

1.65 ± 0.10

PIN 1 NOTCH

R = 0.20 OR 0.25

× 45° CHAMFER

0.40 ± 0.10

1

2

0.200 REF

0.00 – 0.05

(UDC20) QFN 1106 REV Ø

R = 0.115

TYP

0.25 ± 0.05

0.50 BSC

BOTTOM VIEW—EXPOSED PAD

NOTE:

1. DRAWING IS NOT A JEDEC PACKAGE OUTLINE

2. DRAWING NOT TO SCALE

3. ALL DIMENSIONS ARE IN MILLIMETERS

4. DIMENSIONS OF EXPOSED PAD ON BOTTOM OF PACKAGE DO NOT INCLUDE

MOLD FLASH. MOLD FLASH, IF PRESENT, SHALL NOT EXCEED 0.15mm ON ANY SIDE

5. EXPOSED PAD SHALL BE SOLDER PLATED

6. SHADED AREA IS ONLY A REFERENCE FOR PIN 1 LOCATION

ON THE TOP AND BOTTOM OF PACKAGE

40981fc

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