NCV8705(2014) 데이터 시트보기 (PDF) - ON Semiconductor
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NCV8705
(Rev.:2014)
(Rev.:2014)
ON Semiconductor
NCV8705 Datasheet PDF : 20 Pages
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NCV8705
TYPICAL CHARACTERISTICS
100
90
COUT = 1 mF
COUT = 4.7 mF
80
COUT = 10 mF
70
60
50
40 VIN = 4.3 V + 100 mVPP
30 VOUT = 3.3 V
ILOAD = 500 mA
20 CIN = none
10 MLCC, X7R,
1206 size
0
0.01 0.1
1
10
100
1k
10k
FREQUENCY (kHz)
Figure 39. Power Supply Rejection Ratio,
VOUT = 3.3 V, IOUT = 500 mA − Different COUT
80
C1 = none
70
C1 = 100 pF
60
C1 = 1 nF
C1 = 10 nF
50
C1 = 100 nF
40
30 VIN = 4.3 V + 100 mVPP
VOUT = 3.3 V
20 R1 = 225k, R2 = 82k
ILOAD = 10 mA
10 COUT = 1 mF MLCC,
X7R, 1206 size
0
0.01 0.1
1
10
100
1k
10k
FREQUENCY (kHz)
Figure 40. Power Supply Rejection Ratio,
VOUT = 3.3 V, IOUT = 500 mA − Different COUT
100
10
UNSTABLE REGION
1
VOUT = 0.8 V
VOUT = 3.3 V
0.1
STABLE REGION
0.01
0
50 100 150 200 250 300 350 400 450 500
IOUT, OUTPUT CURRENT (mA)
Figure 41. Output Capacitor ESR vs. Output
Current
VEN
IINRUSH
VOUT
VIN = 3.8 V
VOUT = 3.3 V
VEN = 1 V
COUT = 1 mF
CIN = 1 mF
IOUT = 500 mA
100 ms/div
Figure 42. Enable Turn−on Response,
COUT = 1 mF, IOUT = 10 mA
VEN
IINRUSH
VOUT
VIN = 3.8 V
VOUT = 3.3 V
VEN = 1 V
COUT = 1 mF
CIN = 1 mF
IOUT = 500 mA
100 ms/div
Figure 43. Enable Turn−on Response,
COUT = 1 mF, IOUT = 500 mA
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