max5951etjt Maxim Integrated Products, Inc., max5951etjt Datasheet - Page 25

• Manufacturer Part Number: max5951etjt
• Description: Max5951 12v/5v Input Buck Pwm Controller
• Manufacturer: Maxim Integrated Products, Inc.

(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.)
Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are
implied. Maxim reserves the right to change the circuitry and specifications without notice at any time.
Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 ____________________ 25
© 2006 Maxim Integrated Products
M. Quijano
-DRAWING NOT TO SCALE-
-DRAWING NOT TO SCALE-
NOTES:
SYMBOL
PKG.
JEDEC
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.
13. LEAD CENTERLINES TO BE AT TRUE POSITION AS DEFINED BY BASIC DIMENSION "e", ±0.05.
MARKING
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
5. DIMENSION b APPLIES TO METALLIZED TERMINAL AND IS MEASURED BETWEEN
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
ND
PIN # 1
I.D.
A1
A3
NE
b
D
E
L1
A
e
k
L
N
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.
0.25 mm AND 0.30 mm FROM TERMINAL TIP.
T2855-3 AND T2855-6.
0.70
0.25
4.90
4.90
0.25
0.30
MIN.
0
-
C
0.20 REF.
16L 5x5
0.80 BSC.
WHHB
NOM.
0.40
0.75
0.02
0.30
5.00
5.00
16
4
4
-
-
MAX.
0.80
0.05
0.50
0.35
5.10
5.10
-
-
AAAAA
COMMON DIMENSIONS
12V/5V Input Buck PWM Controller
0.70
0.25
4.90
4.90
0.25
0.45
MIN.
0
-
0.20 REF.
0.65 BSC.
20L 5x5
WHHC
D
NOM.
0.30
5.00
5.00
0.55
0.75
0.02
20
-
5
5
-
MAX.
0.80
0.05
0.35
5.10
5.10
0.65
-
D/2
-
Printed USA
MIN.
0.70
0.20
4.90
4.90
0.25
0.45
0
-
0.20 REF.
0.50 BSC.
28L 5x5
WHHD-1
e
NOM.
0.75
0.02
5.00
5.00
0.55
0.25
28
7
7
A1 A3
-
-
E/2
MAX.
0.80
0.05
0.30
5.10
5.10
0.65
-
-
E
0.70
4.90
4.90
0.25
0.30
A
MIN.
0.20 0.25 0.30
0
-
0.20 REF.
0.50 BSC.
WHHD-2
32L 5x5
NOM.
0.75
0.02
5.00
5.00
0.40
0.10 C
32
8
8
-
-
0.08 C
MAX.
0.80
5.10
5.10
0.05
0.50
-
-
L1
0.70
0.15
4.90
4.90 5.00
0.25 0.35 0.45
0.40 0.50
0.30
MIN.
0
L
0.20 REF.
0.40 BSC.
40L 5x5
NOM.
0.75 0.80
0.02
0.20
5.00 5.10
0.40 0.50
-----
40
10
10
MAX.
0.05
0.25
5.10
0.60
(NE-1) X e
DETAIL A
is a registered trademark of Maxim Integrated Products, Inc.
CODES
T1655-2
T1655-3
T1655N-1 3.00
T2055-3
T2055-4
T2055-5
T2855-3
T2855-4
T2855-5
T2855-6
T2855-7
T2855-8
T2855N-1
T3255-3
T3255-4
T3255-5
T3255N-1 3.00
T4055-1
PKG.
L
k
3.00
3.00
3.00
3.00
3.15
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
3.15
3.00 3.10
3.00 3.10
3.00
3.20
MIN.
EXPOSED PAD VARIATIONS
C L
e
(ND-1) X e
NOM.
3.10
3.10
3.10
3.10
3.10
3.25
3.25
3.25
3.10
3.10
3.30
D2
e
PACKAGE OUTLINE,
16, 20, 28, 32, 40L THIN QFN, 5x5x0.8mm
PACKAGE OUTLINE,
16, 20, 28, 32, 40L THIN QFN, 5x5x0.8mm
D2
L C
3.20
3.20
MAX.
3.20
3.20
3.20
3.20
3.35
3.35
3.35
3.20
3.20
3.20
3.40 3.20 3.30 3.40
D2/2
e/2
3.00
3
3
3.00
3.00 3.10 3.20
3.00
3.00
3.00
3.15 3.25 3.35
3.15 3.25 3.35
3.15 3.25 3.35
3.00 3.10
3.00 3.10
3.00
MIN.
**
SEE COMMON DIMENSIONS TABLE
NOM. MAX.
3.10
3.10
3.10
3.10
3.10
3.10
b
21-0140
21-0140
E2
DETAIL B
Package Information
L
E2/2
0.10 M C A B
3.20
3.20
3.20
3.20
3.20
3.20
3.20
3.20
PIN # 1 I.D.
0.35x45°
L C
e
E2
±0.15
exceptions
0.40
0.40
L C
**
**
**
**
**
**
**
**
**
**
**
**
**
**
**
**
L
DOWN
BONDS
ALLOWED
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
I
NO
NO
NO
NO
NO
NO
NO
NO
I
L
1
2
2
2