ISL80112IRAJZ Datasheet, PDF (8/17 Pages) Intersil Corporation – Ultra Low Dropout 1A, 2A, 3A Low Input Voltage NMOS LDOs

ISL80111, ISL80112, ISL80113
Typical Operating Performance Unless otherwise noted, V_IN = 1.8V, V_BIAS = 3.3V, V_OUT = 1.2V, C_IN = C_OUT = 10µF,
T_J = +25°C, I_LOAD = 0A. (Continued)
1.205
1.204
1.203
4.5
4.0
BIAS = 5V
1.202
3.5
1.201
1.200
3.0
1.199
1.198
2.5
BIAS = 2.9V
1.197
1.196
VV_{ININ==11..66VV}
1.195
2.9 3.2 3.5 3.8 4.1 4.4 4.7 5.0
BIAS VOLTAGE (V)
2.0
1.5
0
1
2
3
OUTPUT CURRENT(A)
FIGURE 11. V_BIAS LINE REGULATION
FIGURE 12. BIAS GROUND CURRENT vs LOAD CURRENT
11
10
V_BIAS = 5V
V_OUT = 3.3V
9
8
7
V_BIAS = 3.3V
V_OUT = 1.8V
6
5
V_BIAS = 3.3V
4 _{VOUT = 1.0V}
3
V_BIAS = 5V
V_OUT = 1.0V
V_BIAS = 5V
V_OUT = 1.8V
2
V_BIAS = 3.3V
V_BIAS = 5V
1
V_OUT = 0.8V
V_OUT = 0.8V
1.0 1.4
1.8
2.2
2.6
3.0
3.4
3.8
VIN INPUT VOLTAGE (V)
FIGURE 13. INPUT GROUND CURRENT vs V_IN and V_OUT
3.2
3.0
2.8
2.6
2.4
2.2
VV_{OINU=T1=.60V.8V}
2.0
2.9 3.2
3.5
3.8
4.1
4.4
4.7
5.0
BIAS VOLTAGE (V)
FIGURE 14. INPUT GROUND CURRENT vs V_BIAS
3.2
3.1
3.0
V_BIAS = 5V
V_OUT = 0.8V
2.9
V_BIAS = 5V
V_OUT = 1.2V
V_BIAS = 5V
V_OUT = 2.5V
2.8
2.7 _{VBIAS = 3.3V}
2.6 V_OUT = 0.8V
2.5
2.4
V_BIAS = 3.3V
V_OUT = 1.2V
V_BIAS = 3.3V
V_OUT = 2.5V
2.3
2.2
1.0
1.4
1.8
2.2
2.6
3.0
3.4
3.8
INPUT VOLTAGE (V)
FIGURE 15. BIAS GROUND CURRENT vs V_IN and V_OUT
3.45
3.25
3.05
2.85
2.65
2.45
2.25
2.05
V_IN = 1.6V
1.85
2.9 3.2
3.5
3.8
4.1
4.4
4.7
5.0
BIAS VOLTAGE (V)
FIGURE 16. BIAS GROUND CURRENT vs V_BIAS
8
FN7841.2
November 1, 2013