isl88550a Intersil Corporation, isl88550a Datasheet - Page 25

• Manufacturer Part Number: isl88550a
• Description: Synchronous Step Down Controller With Sourcing And Sinking Ldo Regulator
• Manufacturer: Intersil Corporation

(DATUM A)
Thin Quad Flat No-Lead Plastic Package
(TQFN)
Thin Micro Lead Frame Plastic Package
(TMLFP)
SEATING PLANE
FOR ODD TERMINAL/SIDE
2X
INDEX
AREA
2X
C
(DATUM B)
INDEX
AREA
AREA
6
0.15
6
0.15
C
4X P
4X
NX L
4X P
e
C
C
8
A
C
C L
0
1
2
3
B
A
9
N
BOTTOM VIEW
N
SIDE VIEW
TOP VIEW
NX b
e
(Nd-1)Xe
REF.
D2
D1
5
D
D2
NX b
L1
TERMINAL TIP
2
D1/2
SECTION "C-C"
D/2
5
N
10
0.10
L
7
25
NX k
2X
1
2
3
A3
E2/2
M C
8
0.15
A2
E1/2
9
CORNER
OPTION 4X
E2
A1
FOR EVEN TERMINAL/SIDE
A
A1
C
E1
A
B
7
8
A
(Ne-1)Xe
9
C L
E/2
/ /
REF.
9
0.08
0.10 C
E
B
e
2X
C
L1
0.15
10
C
L
ISL88550A
B
L28.5x5B
28 LEAD QUAD FLAT NO-LEAD PLASTIC PACKAGE
(COMPLIANT TO JEDEC MO-220WHHD-1 ISSUE I)
NOTES:
1. Dimensioning and tolerancing conform to ASME Y14.5-1994.
2. N is the number of terminals.
3. Nd and Ne refer to the number of terminals on each D and E.
4. All dimensions are in millimeters. Angles are in degrees.
5. Dimension b applies to the metallized terminal and is measured
6. The configuration of the pin #1 identifier is optional, but must be
7. Dimensions D2 and E2 are for the exposed pads which provide
8. Nominal dimensions are provided to assist with PCB Land Pattern
9. Features and dimensions A2, A3, D1, E1, P & θ are present when
SYMBOL
between 0.15mm and 0.30mm from the terminal tip.
located within the zone indicated. The pin #1 identifier may be
either a mold or mark feature.
improved electrical and thermal performance.
Design efforts, see Intersil Technical Brief TB389.
Anvil singulation method is used and not present for saw
singulation.
A1
A2
A3
D1
D2
E1
E2
Nd
Ne
A
D
E
N
P
b
e
k
L
θ
0.70
0.20
3.15
3.15
0.20
0.50
MIN
-
-
-
-
MILLIMETERS
NOMINAL
5.00 BSC
4.75 BSC
5.00 BSC
4.75 BSC
0.20 REF
0.50 BSC
0.75
0.02
0.55
0.25
3.25
3.25
0.55
28
7
7
-
-
-
MAX
0.80
0.05
0.80
0.30
3.35
3.35
0.60
0.60
12
-
October 1, 2007
Rev. 0 7/05
NOTES
FN6168.2
5,8
7,8
7,8
9
9
9
9
8
2
3
3
9
9
-
-
-
-
-
-