LTC3611_15 Datasheet, PDF (24/26 Pages) Linear Technology – 10A, 32V Monolithic Synchronous Step-Down DC/DC Converter

LTC3611
Package Description
WP Package
64-Lead QFN Multipad (9mm × 9mm)
(Reference LTC DWG # 05-08-1812 Rev A)
9.00
BSC
PAD 1
CORNER
SEATING PLANE
A
0.00 – 0.05
0.20 REF
B
1.19
1.92 ₄₈
2.01
3.06
5
9.00
BSC
4.10
3.30
1.39
49 50 51 52 53 54
0.53
(2x)
1.17
0.30
(2x)
0.95
3.30
0.50
3.50
4.53
NX b
3.99
33
aaa C 2x
TOP VIEW
0.30 – 0.50
PIN 1
0.87
2.98
3.60
1.30
1.81
3.30
1.39
0.50
3.50
1.17
4.53
2.04
3.99
0.53
(2x)
0.30
(2x)
0.95
2.30
0.90 ± 0.10
// ccc C
NX
0.08 C
6
1.19
32
0.20 – 0.30
1.42
3.85
BOTTOM VIEW
(BOTTOM METALLIZATION DETAILS)
1.92
2.01
3.06
4.10
3.30
NOTE:
1. DIMENSIONING AND TOLERANCING CONFORM TO ASME Y14.5M-1994
2. ALL DIMENSIONS ARE IN MILLIMETERS, ANGLES ARE IN DEGREES (°)
3. N IS THE TOTAL NUMBER OF TERMINALS
4. THE LOCATION OF THE TERMINAL #1 IDENTIFIER AND TERMINAL NUMBERING
CONVENTION CONFORMS TO JEDEC PUBLICATION 95 SPP-002
5 DIMENSION b APPLIES TO METALLIZED TERMINAL AND IS MEASURED
BETWEEN 0.15mm AND 0.30mm FROM THE TERMINAL TIP.
6 COPLANARITY APPLIES TO THE TERMINALS AND ALL OTHER SURFACE
METALLIZATION
SYMBOL
aaa
bbb
ccc
TOLERANCE
0.15
0.10
0.10
64
0.30 – 0.50
1
0.87
2.98
3.60
1.30
1.81
2.04
16
WP64 QFN REV A 0707
17
3.85
1.42
0.20 – 0.30
RECOMMENDED SOLDER PAD LAYOUT
TOP VIEW
3611fd
24