參數(shù)資料
型號: uA7812Y
廠商: Texas Instruments, Inc.
英文描述: POSITIVE-VOLTAGE REGULATORS
中文描述: 正電壓調(diào)節(jié)器
文件頁數(shù): 7/14頁
文件大?。?/td> 364K
代理商: UA7812Y
μ
A7800 SERIES
POSITIVE-VOLTAGE REGULATORS
SLVS056J
MAY 1976
REVISED MAY 2003
7
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
APPLICATION INFORMATION
+VO
+V
0.1
μ
F
0.33
μ
F
μ
A78xx
Figure 1. Fixed-Output Regulator
OUT
IN
G
VO
COM
+
VI
IL
μ
A78xx
Figure 2. Positive Regulator in Negative Configuration (V
I
Must Float)
R1
0.33
μ
F
Input
Output
μ
A78xx
0.1
μ
F
IO
R2
V
O
V
xx
V
xx
R1
I
Q
R2
NOTE A: The following formula is used when Vxx is the nominal output voltage (output to common) of the fixed regulator:
Figure 3. Adjustable-Output Regulator
VO(Reg)
R1
Input
IO
IO = (VO/R1) + IO Bias Current
0.33
μ
F
μ
A78xx
Output
Figure 4. Current Regulator
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