LTC3609 Datasheet, PDF (23/24 Pages) Linear Technology – 32V, 6A Monolithic Synchronous Step-Down DC/DC Converter

LTC3609
PACKAGE DESCRIPTION
7.00
BSC
4
PAD 1
CORNER
WKG Package
52-Lead QFN Multipad (7mm × 8mm)
(Reference LTC DWG # 05-08-1768 Rev Ø)
SEATING PLANE
A
0.00 – 0.05
B
40
2.625 REF
41
2.90 REF
0.50 BSC ₅₂
PIN 1 ID
1
7
3.40 REF
3.90 ± 0.10
2.925 ± 0.10
2.025
± 0.10
3.20 ± 0.10
3.40 REF
8.00
BSC
33
32
8
1.00 REF
9
10
NX b
4.275 ± 0.10
2.25 ± 0.10
aaa C 2x
9
TOP VIEW
7.50 ± 0.05
2.90 REF
0.50 BSC
2.625 REF
PIN 1
3.20 ± 0.10
3.40 REF
2.025
± 0.10
2.925 ± 0.10
1.00 REF
2.25 ± 0.10
4.275 ± 0.10
0.90 ± 0.10
// ccc C
NX
0.08 C
8
27
0.580 ± 0.10
26
1.35
± 0.10
1.775
REF
14
0.40 ± 0.10
19
15
0.25 ± 0.05
BOTTOM VIEW
(BOTTOM METALLIZATION DETAILS)
MLP52 QFN REV Ø 0807
3.40 REF
3.90 ± 0.10
8.50 ± 0.05
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. ND AND NE REFER TO THE NUMBER OF TERMINALS ON EACH D AND E SIDE RESPECTIVELY
6. NJR REFER TO NON JEDEC REGISTERED
7 DIMENSION b APPLIES TO METALLIZED TERMINAL AND IS MEASURED
BETWEEN 0.20mm AND 0.30mm FROM THE TERMINAL TIP. IF THE TERMINAL
HAS THE OPTIONAL RADIUS ON THE OTHER END OF THE TERMINAL, THE
DIMENSION b SHOULD NOT BE MEASURED IN THAT RADIUS AREA.
8 COPLANARITY APPLIES TO THE TERMINALS AND ALL OTHER SURFACE
METALLIZATION
9 DRAWING SHOWN ARE FOR ILLUSTRATION ONLY
0.40 ± 0.10
0.25 ± 0.05
1.775
REF
1.35
± 0.10
RECOMMENDED SOLDER PAD LAYOUT
TOP VIEW
PACKAGE
OUTLINE
SYMBOL
aaa
bbb
ccc
TOLERANCE
0.15
0.10
0.10
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 representa-
tion that the interconnection of its circuits as described herein will not infringe on existing patent rights.
3609f
23