ISL78302A_14 Datasheet, PDF (6/11 Pages) Intersil Corporation – Dual LDO with Low Noise, Very High PSRR and Low IQ

ISL78302A
Typical Performance Curves
0.8
V_O = 3.3V
0.6
I_LOAD = 0mA
0.4
0.2
-40°C
0.0
+25°C
-0.2
-0.4
+85°C
-0.6
-0.8
3.4 3.8 4.2 4.6 5.0 5.4 5.8 6.2 6.6
INPUT VOLTAGE (V)
FIGURE 3. OUTPUT VOLTAGE vs INPUT VOLTAGE (3.3V OUTPUT)
0.10
0.08
V_IN = 3.8V
V_O = 3.3V
0.06
0.04
0.02
-40°C
0.00
+25°C
-0.02
-0.04
+85°C
-0.06
-0.08
-0.10 ₀
50 100 150 200 250 300 350 400
LOAD CURRENT - I_O (mA)
FIGURE 4. OUTPUT VOLTAGE CHANGE vs LOAD CURRENT
0.10
0.08
0.06
V_IN = 3.8V
V_O = 3.3V
I_LOAD = 0mA
0.04
0.02
0.00
-0.02
-0.04
-0.06
-0.08
-0.10
-40 -25 -10 5 20 35 50 65 80 95 110 125
TEMPERATURE (°C)
FIGURE 5. OUTPUT VOLTAGE CHANGE vs TEMPERATURE
3.4
I_O = 0mA
3.3
V_O = 3.3V
3.2
I_O = 150mA
3.1
I_O = 300mA
3.0
2.9
2.8
3.1
3.6
4.1
4.6
5.1
5.6
6.1 6.5
INPUT VOLTAGE (V)
FIGURE 6. OUTPUT VOLTAGE vs INPUT VOLTAGE (3.3V OUTPUT)
2.9
I_O = 0mA
2.8
V_O = 2.8V
2.7
I_O = 150mA
2.6
I_O = 300mA
2.5
2.4
2.3
2.6 3.1 3.6 4.1 4.6 5.1 5.6 6.1 6.5
INPUT VOLTAGE (V)
FIGURE 7. OUTPUT VOLTAGE vs INPUT VOLTAGE (2.8V OUTPUT)
350
300
250
V_O = 2.8V
200
V_O = 3.3V
150
100
50
0
0
50 100 150 200 250 300 350 400
OUTPUT LOAD (mA)
FIGURE 8. DROPOUT VOLTAGE vs LOAD CURRENT
6
FN7932.1
December 23, 2013