ISL78302 Datasheet, PDF (7/11 Pages) Intersil Corporation – Dual LDO with Low Noise, High Performance and Low IQ

ISL78302
Typical Performance Curves (Continued)
200
V_IN = 3.5V
180 V_O1= 2.5V
160 ^{VO2= 1.5V}
+105°C
140
120
100
80
-40°C
60
+25°C
40
0
50 100 150 200 250 300 350 400
LOAD CURRENT (mA)
FIGURE 8. GROUND CURRENT vs LOAD
60
V_IN = 3.6V
V_O1= 2.5V
V_O2= 1.5V
55 _{ILOAD = 0µA}
BOTH OUTPUTS ON
50
45
40
-40 -25 -10 5 20 35 50 65 80 95 110
TEMPERATURE (°C)
FIGURE 9. GROUND CURRENT vs TEMPERATURE
V_O1 = 2.5V
V_O2 = 1.5V
I_L1 = 300mA
I_L2 = 300mA
VIN
V_O1
V₀2
V_O1
V_O2
POR1
POR2
V_O1 = 2.5V
V_O2 = 1.5V
I_L1 = 300mA
I_L2 = 300mA
CPOR = 0.01µF
FIGURE 10. POWER-UP/POWER-DOWN
FIGURE 11. POWER-UP/POWER-DOWN WITH POR SIGNALS
V_O2 (10mV/DIV)
V_O1 = 2.5V
V_O2 = 1.5V
I_L1, I_L2 = 300mA
C_BYP = 0.01uF
C_L1, C_L2 = 1µF
FIGURE 12. TURN-ON/TURN-OFF RESPONSE
7
V_O (50mV/DIV)
V_IN = 3.5V
V_O = 1.5V
I_LOAD
FIGURE 13. LOAD TRANSIENT RESPONSE
FN7696.0
January 28, 2011