ISL78310 Datasheet, PDF (7/13 Pages) Intersil Corporation – High Performance 1A LDO

ISL78310
Typical Operating Performance
Unless otherwise noted: V_IN = 2.2V, V_OUT = 1.8V, C_IN = C_OUT = 10µF, T_J = +25°C, I_L = 0A.
1.8
2.0
1.8
1.2
1.6
0.6
0
-0.6
-1.2
-1.8
-50
-25 0 25 50 75 100 125 150
JUNCTION TEMPERATURE (°C)
1.4
1.2
+125°C
1.0
0.8 _+25°C
0.6
-40°C
0.4
0.2
0
0
1
2
3
4
5
6
SUPPLY VOLTAGE (V)
FIGURE 3. V_OUT vs TEMPERATURE
FIGURE 4. V_OUT vs SUPPLY VOLTAGE
1.8
1.2
0.6
0
-0.6
+25°C
+125°C
-40°C
-1.2
-1.8
0
0.25
0.50
0.75
LOAD CURRENT (A)
FIGURE 5. V_OUT vs LOAD CURRENT
1.00
5
4
3
2
1
0
2
3
4
5
6
INPUT VOLTAGE (V)
FIGURE 6. GROUND CURRENT vs SUPPLY VOLTAGE
3.50
3.25
3.00
+125°C
2.75
2.50
+25°C
-40°C
2.25
2.00
1.75
1.50
0
0.25
0.50
0.75
LOAD CURRENT (A)
1.00
FIGURE 7. GROUND CURRENT vs LOAD CURRENT
7
200
V_OUT = 2.5V
180
160
I_LOAD = 1A
140
120
100
I_LOAD = 500mA
80 ^ILOAD ^{= 100mA}
60
40
20
0
-40 -25 -10 5 20 35 50 65 80 95 110 125
TEMPERATURE (°C)
FIGURE 8. DROPOUT VOLTAGE vs TEMPERATURE
FN7810.0
February 17, 2011