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ISL78302_14 Datasheet, PDF (9/13 Pages) Intersil Corporation – Dual LDO with Low Noise, High Performance and Low IQ
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ISL78302
Typical Performance Curves (Continued)
100
90
VIN = 3.3V
VOUT = 1.5V
80
IO = 10mA
70
CLOAD = 1µF
60
CBYP = 0.01µF
50
40
30
20
10
0
10
100
1k
10k
100k
1M
FREQUENCY (Hz)
FIGURE 15. PSRR vs FREQUENCY
10
VIN = 3.6V
VOUT = 2.5V
ILOAD = 10mA
CIN = 1µF
1
CLOAD = 1µF
CBYP = 0.01µF
0.1
0.0110
100
1k
10k
100k
1M
FREQUENCY (Hz)
FIGURE 16. SPECTRAL NOISE DENSITY vs FREQUENCY
(2.5V OUTPUT, 10mA LOAD)
10
10
VIN = 3.6V
VIN = 3.6V
VOUT = 2.5V
VOUT = 1.5V
ILOAD = 300mA
ILOAD = 10mA
1
CIN = 1µF
CLOAD = 1µF
1
CIN = 1µF
CLOAD = 1µF
CBYP = 0.01µF
CBYP = 0.01µF
0.1
0.1
0.01
10
100
1k
10k
100k
1M
FREQUENCY (Hz)
FIGURE 17. SPECTRAL NOISE DENSITY vs FREQUENCY
(2.5V OUTPUT, 300mA LOAD)
10
1
0.1
0.01
10
100
1k
10k
100k
1M
FREQUENCY (Hz)
FIGURE 18. SPECTRAL NOISE DENSITY vs FREQUENCY
(1.5V OUTPUT, 10mA LOAD)
VIN = 3.6V
VOUT = 1.5V
ILOAD = 300mA
CIN = 1µF
COUT = 1µF
CBYP = 0.01µF
0.01
10
100
1k
10k
100k
1M
FREQUENCY (Hz)
FIGURE 19. SPECTRAL NOISE DENSITY vs FREQUENCY (1.5V OUTPUT, 300mA LOAD)
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9
FN7696.6
November 6, 2014
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