ISL75052SEH Datasheet, PDF (11/16 Pages) Intersil Corporation – 1.5A, Rad Hard, Positive, High Voltage LDO

ISL75052SEH
Typical Operating Performance (Continued)
Timebase = 500µs/DIV
V_OUT = 50mV/DIV
V_OUT = 50mV/DIV
Timebase = 500µs/DIV
I_OUT = 500mA/DIV
FIGURE 9A. LOAD STEP RESPONSE, 25°C, V_IN = 13.2V, V_OUT = 10V,
I_OUT = 0A to 1.5A, C_OUT = 200µF, 30mΩ
I_OUT = 500mA/DIV
FIGURE 9B. LOAD STEP RESPONSE, 25°C, V_IN = 13.2V, V_OUT = 10V,
I_OUT = 0.15A to 1.5A, C_OUT = 200µF, 30mΩ
70
60
50
40
30
20
10
0
-10
-20
-30
-40
-50
-60
-70
500
PHASE (°)
GAIN (dB)
5k
50k
FREQUENCY (Hz)
500k
180
150
120
90
60
30
0
-30
-60
-90
-120
-150
-180
FIGURE 10. GAIN PHASE PLOTS, V_IN = 4V, V_OUT = 2.5V, I_OUT = 0.2A,
R_COMP = 22k, C_COMP = 1nF, C_OUT = 200µF, 30mΩ,
PHASE MARGIN = 98.68°, GAIN MARGIN = 23.01dB
60
50
40
30
20
10
0
-10
-20
-30
-40
-50
-60
500
PHASE (°)
GAIN (dB)
5k
50k
FREQUENCY (Hz)
500k
180
150
120
90
60
30
0
-30
-60
-90
-120
-150
-180
FIGURE 11. GAIN PHASE PLOTS, V_IN = 4V, V_OUT = 2.5V, I_OUT = 1.5A,
R_COMP = 22k, C_COMP = 1nF, C_OUT = 200µF, 30mΩ,
PHASE MARGIN = 84.56°, GAIN MARGIN = 18.06dB
-30
-40
125°C PSRR (dB)
-50
-60
-70
25°C PSRR (dB)
-80
-90
-55°C PSRR (dB)
-100
100
1k
10k
FREQUENCY (Hz)
100k
FIGURE 12. PSRR, V_IN = 4.9V, V_OUT = 4.0V, I_OUT = 1.5A, R_COMP = 22k, C_COMP = 1nF, C_OUT = 200µF, 30mΩ
11
FN8456.0
May 29, 2013