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October 2001 TOKO, Inc.
Page 5
TK717xxS
TEST CIRCUIT
TYPICAL PERFORMANCE CHARACTERISTICS
Noise Performance
TK71730S NOISE vs. CN
For better noise reduction it is
more effective to increase C
N
without increasing CL.
The recommended C
capaci-
tance is 6800 pF or 0.01 F.
As the output voltage increases,
the noise will also increase.
VIN
VOUT
VCONT
ICONT
On/Off CONT
CIN = 0.22
μ
F
Noise Bypass (VREF)
CN = 0.001
μ
F
CL = 0.22
μ
F
IOUT
VIN
GND
V
A
A
V
IIN
N
μ
V
CN (pF)
0 10 100 1000 10000 100000
300
250
200
150
100
50
0
CL = TANTALUM
CL = CERAMIC
CL = 0.2
μ
F
CL = 0.4
μ
F
CL = 1.0
μ
F
CL = 2.2
μ
F
CL = 10
μ
F
IOUT = 30 mA
BPF = 400 Hz ~ 80 kHz
N
μ
V
VOUT (V)
1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0
70
60
50
40
30
20
10
NOISE vs VOUT
BPF = 400 Hz ~ 80 kHz
IOUT = 30 mA
CN = 0.01
μ
F
CL = 1.0
μ
F (TANTALUM)
N
μ
V
IOUT (mA)
0 25 50 75 100 125 150 175 200
70
60
50
40
30
65
55
45
35
NOISE vs. IOUT
CN = 0.01
μ
F
CL = 0.22
μ
F
CL = 0.47
μ
F
CL = 1.0
μ
F
CL = 2.2
μ
F
CL = 10
μ
F
CL = TANTALUM
FREQUENCY (kHz)
0.01 0.1 1 10 100
10
1
0.1
0.01
NOISE vs. FREQUENCY
CN = 0.01
μ
F
CN = 0.10
μ
F
TK71730S
CIN = 10
μ
F
CL = 0.22
μ
F (CERAMIC)
IOUT = 10 mA
μ
V
IOUT (mA)
0 25 50 75 100 125 150 175 200
70
60
50
40
30
65
55
45
35
NOISE vs. IOUT
CN = 0.01
μ
F
CL = 0.22
μ
F
CL = 0.47
μ
F
CL = 1.0
μ
F
CL = 2.2
μ
F
CL = 10
μ
F
CL = CERAMIC
N
μ
V
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| TK71746SCL | LOW DROPOUT VOLTAGE REGULATOR |
| TK71747S | LOW DROPOUT VOLTAGE REGULATOR |
| TK71747SCL | LOW DROPOUT VOLTAGE REGULATOR |
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相關(guān)代理商/技術(shù)參數(shù) |
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| TK71746SCL | 制造商:TOKO 制造商全稱:TOKO, Inc 功能描述:LOW DROPOUT VOLTAGE REGULATOR |
| TK71746SCL/46 | 制造商:TOKO 制造商全稱:TOKO, Inc 功能描述:LOW DROPOUT VOLTAGE REGULATOR |
| TK71747 | 制造商:TOKO 制造商全稱:TOKO, Inc 功能描述:LOW DROPOUT VOLTAGE REGULATOR |
| TK71747S | 制造商:TOKO 制造商全稱:TOKO, Inc 功能描述:LOW DROPOUT VOLTAGE REGULATOR |
| TK71747SCL | 制造商:TOKO 制造商全稱:TOKO, Inc 功能描述:LOW DROPOUT VOLTAGE REGULATOR |
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