Typical Performance Curves (Continued)
4.3V
3.6V
VO = 3.3V
ILOAD = 300mA
CLOAD = 1µF
CBYP = 0.01µF
4.2V
3.5V
VO2 = 2.8V
ILOAD = 300mA
CLOAD = 1µF
CBYP = 0.01µF
10mV/DIV
10mV/DIV
400µs/DIV
FIGURE 13. LINE TRANSIENT RESPONSE, 3.3V OUTPUT
VO (25mV/DIV)
300mA
100μA
ILOAD
VO = 1.8V
VIN = 2.8V
100µs/DIV
FIGURE 15. LOAD TRANSIENT RESPONSE
1000
400µs/DIV
FIGURE 14. LINE TRANSIENT RESPONSE, 2.8V OUTPUT
100
90
80
70
60
50
40
30
20
10
0
0.1
VIN = 3.6V
VO = 1.8V
IO = 10mA
CBYP = 0.1µF
CLOAD = 1µF
1k
10k
100k
1M
FREQUENCY (Hz)
FIGURE 16. PSRR vs FREQUENCY
100
10
VIN = 3.6V
VO = 1.8V
ILOAD = 10mA
1 CBYP = 0.1µF
CIN = 1µF
CLOAD = 1µF
0.1
10
100
1k
10k
100k
1M
FREQUENCY (Hz)
FIGURE 17. SPECTRAL NOISE DENSITY vs FREQUENCY
7
FN6438.1
March 11, 2008