參數(shù)資料
型號(hào)： 8227
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(yè)數(shù)： 2/8頁(yè)
文件大?。?/td> 137K
代理商： 8227
8226
THRU
8233
LOW-DROPOUT
REGULATORS
115 Northeast Cutoff, Box 15036
Worcester, Massachusetts 01615-0036 (508) 853-5000
Copyright 2000, Allegro MicroSystems, Inc.
FUNCTIONAL BLOCK DIAGRAM
A82xxSLM 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
1.5
2.0
2.5
3.0
T
A
3.5
4.0*
4.5*
25
°
C
100
100
100
100
100
100
100
50
°
C
100
100
100
100
100
100
100
70
°
C
100
100
100
100
100
91
81
85
°
C
100
100
100
98
84
74
66
* Absolute maximum peak output current rating is 100 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 100 mA maximum) by additional heat sinking or reducing the duty cycle.
Dwg. FS-012-5B
BIAS
DRIVE
E
BANDGAP
REF.
ERROR
AMP
IN
ENABLE
OUT
5
4
1
2
GND
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