Data Sheet
300mA HIGH SPEED, EXTREMELY LOW NOISE CMOS LDO REGULATOR
Typical Performance Characteristics
AP2128
1.0
3.5
0.9
0.38.0
0.7
2.5
0.6
2.0
0.5
0.14.5
0.3
1.0
0.2
0.5
0.1
0.0.0
00
Tc=-40oCT =-40oC
Tc=25oC
C
T =25oC
C
Tc=85oC
T =125oC
C
Vin=2.5VV, VIN=ou4t.=4V0.8V
50 101000 150 202000 250 303000 350 404000 450 505000
OOuuttppuuttCCuurrrreenntt((Vm)A)
3.5
3.0
2.5
2.0
1.5
1.0
TC=-40oC
TC=25oC
0.5
TC=85oC
VIN=4.3V, VOUT=3.3V
0.0
0.0
0.1
0.2
0.3
0.4
0.5
Output Current (A)
Figure 4. Output Voltage vs. Output Current
Figure 5. Output Voltage vs. Output Current
3.5
3.0
2.5
2.0
1.5
1.0
VIN=3.8V
VIN=4.3V
0.5
V =6V
IN
TC=250C,
V =3.3V
OUT
0.0
0.0
0.1
0.2
0.3
0.4
0.5
Output Current (A)
Figure 6. Output Voltage vs. Output Current
6.0
5.5
5.0
4.5
4.0
3.5
3.0
2.5
2.0
1.5
1.0
0.5
0.0
0.0
TC=-40oC
TC=25oC
T =85oC
C
V =6V, V =5.2V
IN
OUT
0.1
0.2
0.3
0.4
0.5
Output Current (A)
Figure 7. Output Voltage vs. Output Current
Oct. 2009 Rev. 1.8
BCD Semiconductor Manufacturing Limited
10