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參數(shù)資料
| 型號： | 8405 |
| 廠商： | Allegro MicroSystems, Inc. |
| 英文描述： | LOW-DROPOUT REGULATORS . HIGH EFFICIENCY |
| 中文描述： | 低壓差穩(wěn)壓器。高效 |
| 文件頁數(shù)： | 2/8頁 |
| 文件大?。?/td> | 118K |
| 代理商： | 8405 |
8405
LOW-DROPOUT
REGULATORS
115 Northeast Cutoff, Box 15036
Worcester, Massachusetts 01615-0036 (508) 853-5000
Copyright 1999, 2000 Allegro MicroSystems, Inc.
FUNCTIONAL BLOCK DIAGRAM
A8405SLH Maximum Allowable Average Output Current*
with device mounted on 2.24" x 2.24"
(56.9 mm x 56.9 mm) solder-coated copper-clad board in still air.
Allowable Total Average (10 ms) Output Current in Milliamperes
with T
J
= 150
°
C, Duty Cycle = 100%
V
I
- V
O
0.5
1.0
1.5
2.0
2.5
T
A
3.0
3.5
4.0*
4.5*
25
°
C
200
200
200
200
200
189
162
142
126
50
°
C
200
200
200
200
182
152
130
114
101
70
°
C
200
200
200
182
145
121
104
91
81
85
°
C
200
200
197
148
118
98
84
74
66
* Absolute maximum peak output current rating is 200 mA; absolute maximum input voltage is 7 V.
I
O
= (T
J
– T
A
)/([V
I
– V
O
] R
θ
JA
x dc) = (150 – T
A
)/([V
I
– V
O
] x 220 x 1.00)
Output current rating can be increased (to 200 mA maximum) by additional heat sinking or reducing the duty cycle.
O
P
T
P
DRIVE
BANDGAP
REF.
ERROR
AMP
Dwg. FS-012-7
BIAS
E
IN
ENABLE
OUT
1
5
3
2
GND
BYPASS
(FIXED REG'S)
4
OUT
5
ADJUST
(SUFFIX
"-ADJ" ONLY)
4
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