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參數(shù)資料
| 型號(hào)： | TK71570SCL |
| 廠商： | TOKO INC |
| 元件分類： | 基準(zhǔn)電壓源/電流源 |
| 英文描述： | CAP 220UF 4V ELECT HB SMD |
| 中文描述： | 7 V FIXED POSITIVE LDO REGULATOR, 0.33 V DROPOUT, PDSO3 |
| 封裝： | MINIATURE, SOT-23, 3 PIN |
| 文件頁數(shù)： | 10/13頁 |
| 文件大小： | 76K |
| 代理商： | TK71570SCL |
Page 10
January 1999 TOKO, Inc.
TK715xx
TK715xxS
CL
ESR
APPLICATION INFORMATION
INPUT-OUTPUT CAPACITORS
Linear regulators require input and output capacitors in order to maintain regulator loop stability. The output capacitor
should be selected within the Equivalent Series Resistance (ESR) range as shown in the graphs below for stable
operation. When a ceramic capacitor is connected in parallel with the output capacitor, a maximum of 1000 pF is
recommended. This is because the ceramic capacitor's electrical characteristics (capacitance and ESR) vary widely over
temperature. If a large ceramic capacitor is used, a resistor should be connected in series with it to bring it into the stable
operating area shown in the graphs below. Minimum resistance should be added to maintain load and line transient
response.
Note: It is very important to check the selected manufacturers electrical characteristics (capacitance and ESR) over
temperature.
715xxS
CL
ESR
100
10
1
0.1
0 .01
0
50
100
IOUT (mA)
E
)
OSTABLE
AREA
100
10
1
0.1
0 .01
0
50
100
IOUT (mA)
E
)
OSTABLE
AREA
100
10
1
0.1
0 .01
0
50
100
IOUT (mA)
E
)
OAREA
C
L
= 1.0
μ
F
C
L
= 2.2
μ
F
C
L
= 4.7
μ
F
Note: It is not necessary to connect a ceramic capacitor
in parallel with an aluminum or tantalum output capacitor.
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