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參數資料
| 型號： | MC34270FB |
| 廠商： | MOTOROLA INC |
| 元件分類： | 穩壓器 |
| 英文描述： | Single Output LDO, 250mA, Fixed(3.0V), Low Noise, Fast Transient Response 5-SOT-23 -40 to 85 |
| 中文描述： | 0.5 A DUAL SWITCHING CONTROLLER, 700 kHz SWITCHING FREQ-MAX, PQFP32 |
| 封裝： | PLASTIC, QFP-32 |
| 文件頁數： | 11/12頁 |
| 文件大小： | 364K |
| 代理商： | MC34270FB |
MC34270 MC34271
11
MOTOROLA ANALOG IC DEVICE DATA
FB SUFFIX
PLASTIC PACKAGE
CASE 873–01
0.274
0.274
0.055
0.010
0.051
0.010
–
0.005
0.013
6
°
0.005
5
°
0.006
0.348
0.006
5
°
0.348
MIN
6.95
6.95
1.40
0.273
1.30
0.273
MIN
MAX
7.10
7.10
1.60
0.373
1.50
MAX
0.280
0.280
0.063
0.015
0.059
MILLIMETERS
INCHES
DIM
A
B
C
D
E
F
G
H
J
K
L
M
N
P
Q
R
S
T
U
V
X
–
0.20
0.197
0.57
8
°
0.135
10
°
0.25
9.15
0.25
11
°
9.15
–
0.119
0.33
6
°
0.119
5
°
0.15
8.85
0.15
5
°
8.85
0.031 BSC
0.220 REF
0.016 BSC
0.80 BSC
5.6 REF
0.40 BSC
–
0.008
0.008
0.022
8
°
0.005
10
°
0.010
0.360
0.010
11
°
0.360
NOTES:
1. DIMENSIONING AND TOLERANCING PER ANSI
Y14.5M, 1982.
2. CONTROLLING DIMENSION: MILLIMETER.
3. DATUM PLANE –H– IS LOCATED AT BOTTOM OF
LEAD AND IS COINCIDENT WITH THE LEAD WHERE
THE LEAD EXITS THE PLASTIC BODY AT THE
BOTTOM OF THE PARTING LINE.
4. DATUMS –A–, –B– AND –D– TO BE DETERMINED AT
DATUM PLANE –H–.
5. DIMENSIONS S AND V TO BE DETERMINED AT
SEATING PLANE –C–.
6. DIMENSIONS A AND B DO NOT INCLUDE MOLD
PROTRUSION. ALLOWABLE PROTRUSION IS 0.25
(0.010) PER SIDE. DIMENSIONS A AND B DO
INCLUDE MOLD MISMATCH AND ARE DETERMINED
AT DATUM PLANE –H–.
7. DIMENSION D DOES NOT INCLUDE DAMBAR
PROTRUSION. ALLOWABLE DAMBAR PROTRUSION
SHALL BE 0.08 (0.003) TOTAL IN EXCESS OF THE D
DIMENSION AT MAXIMUM MATERIAL CONDITION.
DAMBAR CANNOT BE LOCATED ON THE LOWER
RADIUS OR THE FOOT.
–H–
DATUM
PLANE
X
K
DETAIL C
U
T
R
Q
P
DETAIL A
–A–,–B–,–D–
B
B
J
BASE METAL
D
N
SECTION B–B
VIEW ROTATED 90
°
CLOCKWISE
F
–H–
DATUM
PLANE
H
32
25
24
17
16
9
8
1
V
B
–B–
L
–A–
L
–D–
A
S
DETAIL A
–C–
SEATING
PLANE
C E
DETAIL C
M
M
G
1.0 REF
0.039 REF
C
0.20 (0.008)
A–B
D
S
S
M
0.01
(0.004)
H
0.20 (0.008)
A–B
D
S
S
M
C
0.20 (0.008)
0.05 (0.002)
A–B
D
A–B
S
S
M
0
C
D
0
M
S
S
0
H
D
M
S
S
OUTLINE DIMENSIONS
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