ISL9007 Datasheet, PDF (5/8 Pages) Intersil Corporation – High Current LDO with Low IQ and High PSRR

ISL9007
Typical Performance Curves
VO = 3.3V
VIN = 5.0V
VO = 3.3V
I_L = 300mA
3
C_L = 1µF
I_L = 300mA
C_L = 1µF
4.3V
2
3.6V
1
0
5
10mV/DIV
0
0 100 200 300 400 500 600 700 800 900 1K
TIME (µs)
FIGURE 11. TURN ON/TURN OFF RESPONSE
400 µs/DIV
FIGURE 12. LINE TRANSIENT RESPONSE, 3.3V OUTPUT
4.2V
3.5V
VO = 2.8V
I_L = 300mA
C_L = 1µF
10mV/DIV
400µs/DIV
FIGURE 13. LINE TRANSIENT RESPONSE, 2.8V OUTPUT
100
VIN = 3.5V
90
VO = 2.5V
I_O = 10mA
80
C_L = 1µF
70
60
50
40
30
20
10
0
0.1
1
10
100
1K
FREQUENCY (kHz)
FIGURE 15. PSRR vs FREQUENCY
5
VO (25mV/DIV)
VO = 1.8V
VIN = 2.8V
300mA
100µA
I_LOAD
100µs/DIV
FIGURE 14. LOAD TRANSIENT RESPONSE
10
1
0.1
VIN = 3.6V
VO = 1.8V
I_LOAD = 10mA
0.01 ^{CIN = 1µF}
C_L = 1µF
0.001
10
100
1K
10K
100K
1M
FREQUENCY (Hz)
FIGURE 16. SPECTRAL NOISE DENSITY vs FREQUENCY
FN9218.0
October 13, 2005