MAX1540 Datasheet, PDF (47/49 Pages) Maxim Integrated Products – Dual Step-Down Controllers with Saturation Protection, Dynamic Output, and Linear Regulator

Dual Step-Down Controllers with Saturation
Protection, Dynamic Output, and Linear Regulator
Package Information (continued)
(The package drawing(s) in this data sheet may not reflect the most current specifications. For the latest package outline information,
go to www.maxim-ic.com/packages.)
COMMON DIMENSIONS
PKG.
16L 5x5
20L 5x5
28L 5x5
32L 5x5
SYMBOL MIN. NOM. MAX. MIN. NOM. MAX. MIN. NOM. MAX. MIN. NOM. MAX.
PKG.
CODES
A
0.70 0.75 0.80 0.70 0.75 0.80 0.70 0.75 0.80 0.70 0.75 0.80
A1
0 0.02 0.05 0 0.02 0.05 0 0.02 0.05 0 0.02 0.05
A3
0.20 REF.
0.20 REF.
0.20 REF.
0.20 REF.
b
0.25 0.30 0.35 0.25 0.30 0.35 0.20 0.25 0.30 0.20 0.25 0.30
D
4.90 5.00 5.10 4.90 5.00 5.10 4.90 5.00 5.10 4.90 5.00 5.10
E
4.90 5.00 5.10 4.90 5.00 5.10 4.90 5.00 5.10 4.90 5.00 5.10
e
0.80 BSC.
0.65 BSC.
0.50 BSC.
0.50 BSC.
k
0.25 - - 0.25 - - 0.25 - - 0.25 - -
L
0.30 0.40 0.50 0.45 0.55 0.65 0.45 0.55 0.65 0.30 0.40 0.50
L1
- ----- - --- --
N
ND
NE
JEDEC
16
4
4
WHHB
20
5
5
WHHC
28
7
7
WHHD-1
32
8
8
WHHD-2
NOTES:
1. DIMENSIONING & 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 TERMINAL #1 IDENTIFIER AND TERMINAL NUMBERING CONVENTION SHALL
CONFORM TO JESD 95-1 SPP-012. DETAILS OF TERMINAL #1 IDENTIFIER ARE
OPTIONAL, BUT MUST BE LOCATED WITHIN THE ZONE INDICATED. THE TERMINAL #1
IDENTIFIER MAY BE EITHER A MOLD OR MARKED FEATURE.
T1655-1
T1655-2
T1655N-1
T2055-2
T2055-3
T2055-4
T2055-5
T2855-1
T2855-2
T2855-3
T2855-4
T2855-5
T2855-6
T2855-7
T2855-8
T2855N-1
T3255-2
T3255-3
T3255-4
T3255N-1
5. DIMENSION b APPLIES TO METALLIZED TERMINAL AND IS MEASURED BETWEEN 0.25 mm AND 0.30 mm
FROM TERMINAL TIP.
6. ND AND NE REFER TO THE NUMBER OF TERMINALS ON EACH D AND E SIDE RESPECTIVELY.
7. DEPOPULATION IS POSSIBLE IN A SYMMETRICAL FASHION.
8. COPLANARITY APPLIES TO THE EXPOSED HEAT SINK SLUG AS WELL AS THE TERMINALS.
9. DRAWING CONFORMS TO JEDEC MO220, EXCEPT EXPOSED PAD DIMENSION FOR T2855-1,
T2855-3 AND T2855-6.
10. WARPAGE SHALL NOT EXCEED 0.10 mm.
11. MARKING IS FOR PACKAGE ORIENTATION REFERENCE ONLY.
12. NUMBER OF LEADS SHOWN ARE FOR REFERENCE ONLY.
-DRAWING NOT TO SCALE-
EXPOSED PAD VARIATIONS
D2
E2
L
MIN. NOM. MAX. MIN. NOM. MAX. ±0.15
3.00 3.10 3.20 3.00 3.10 3.20 **
3.00 3.10 3.20 3.00 3.10 3.20 _**
3.00 3.10 3.20 3.00 3.10 3.20 _**
3.00 3.10 3.20 3.00 3.10 3.20 **
3.00 3.10 3.20 3.00 3.10 3.20 **
3.00 3.10 3.20 3.00 3.10 3.20 _**
3.15 3.25 3.35 3.15 3.25 3.35 0.40
3.15 3.25 3.35 3.15 3.25 3.35 _**
2.60 2.70 2.80 2.60 2.70 2.80 _**
3.15 3.25 3.35 3.15 3.25 3.35 **
2.60 2.70 2.80 2.60 2.70 2.80 **
2.60 2.70 2.80 2.60 2.70 2.80 **
3.15 3.25 3.35 3.15 3.25 3.35 _**
2.60 2.70 2.80 2.60 2.70 2.80 _**
3.15 3.25 3.35 3.15 3.25 3.35 0.40
3.15 3.25 3.35 3.15 3.25 3.35 _**
3.00 3.10 3.20 3.00 3.10 3.20 **
3.00 3.10 3.20 3.00 3.10 3.20 **
3.00 3.10 3.20 3.00 3.10 3.20 **
3.00 3.10 3.20 3.00 3.10 3.20 **
DOWN
BONDS
ALLOWED
NO
YES
NO
NO
YES
NO
Y
NO
NO
YES
YES
NO
NO
YES
Y
N
NO
YES
NO
NO
** SEE COMMON DIMENSIONS TABLE
PACKAGE OUTLINE,
16, 20, 28, 32L THIN QFN, 5x5x0.8mm
21-0140
G
2
2
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