AP7173_09 Datasheet, PDF (10/16 Pages) Diodes Incorporated – 1.5A LOW DROPOUT LINEAR REGULATOR WITH

AP7173
1.5A LOW DROPOUT LINEAR REGULATOR WITH
PROGRAMMABLE SOFT-START
Typical Performance Characteristics (Continued)
At TA = +25℃, VIN = VOUT(TYP) + 0.3V, VVCC = 5V, IOUT = 50mA, VEN = VIN, CIN = 1µF, CVCC = 4.7µF, and COUT = 10µF, unless otherwise noted.
QUIESCENT
CURRENT
p
vs.
g
I_OUT
1.25
1.20
1.15
Vout=1.2V
1.10
Vin=2.5V
1.05
1.00
0.95
0.90
Vin=1.8V
0.85
0.80
0.75
0.00
0.25
0.50
0.75
1.00
1.25
1.50
Iout(A)
Figure 21
QUIESCENT CURRENT vs. V_VCC
1.50
Io=0A
1.25
Io=1.5A
1.00
Vin=1.8V
0.75
Vout=1.2V
Io=0.5A
0.50
2.50
2.75
3.00
3.25
3.50
Vvcc(V)
Figure 22
QUIESCENT CURRENT vs. TEMPERATURE
1.50
Vvcc=5V
1.25
1.00
Vvcc=3.3V
Vin=1.8V
Vout=1.2V
0.75
0.50
-50
-25
0
25
50
75
Temperature(^oC)
Figure 23
100
125
CURRENT LIMIT vs. (V_VCC – V_OUT)
3.0
2.9
2.8
2.7
2.6
25^oC
-40^oC
2.5
2.4
2.3
125^oC
2.2
2.1
2.0
1.0
1.5
2.0
2.5
3.0
3.5
4.0
4.5
5.0
Vvcc-Vout(V)
Figure 24
SOFT-START CHARGING
CURRENT (I _SS) vs. TEMPERATURE
500
475
450
POWER-UP/POWER-DOWN
425
400
375
350
325
300
-50
-25
0
25
50
75
Temperature(^oC)
100
125
Figure 25
Figure 26
AP7173 Rev. 7
DS31369
10 of 16
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OCTOBER 2009
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