Data
S
heet
300mA HIGH SPEED, EXTREMELY LOW NOISE CMOS LDO REGULATOR
AP2127
Electrical Characteristics
(V
IN
=2.5V (for 0.8V to 1.8V voltage versions), V
IN
=V
OUT
+1V (for 2.5V to 4.75V voltage versions), V
IN
=6V@V
OUT
=5.2V,
T
A
=25
o
C, C
IN
=1µF, C
OUT
=1µF,
Bold
typeface applies over -40
o
C≤T
A
≤85
o
C, unless otherwise specified.)
Parameter
Reference Voltage
Output Voltage
Input Voltage
Maximum Output Current
Load Regulation
Line Regulation
Symbol
V
REF
V
OUT
V
IN
I
OUT(MAX)
∆V
OUT
/(∆I
OUT*
V
OUT
)
∆V
OUT
/(∆V
IN
*V
OUT
)
V
IN
-V
OUT
=1V,
V
OUT
=0.98×V
OUT
V
IN
-V
OUT
=1V,
1mA≤I
OUT
≤300mA
V
OUT
+0.5V≤V
IN
≤6V
I
OUT
=30mA
V
OUT
=1.0V, I
OUT
=300mA
V
OUT
=1.2V, I
OUT
=300mA
V
OUT
=1.5V, I
OUT
=300mA
Dropout Voltage
V
DROP
V
OUT
=1.8V, I
OUT
=300mA
V
OUT
=2.5V, 2.8V, 3.0V, 3.3V,
4.2V, I
OUT
=300mA
V
OUT
=4.75V and 5.2V,
I
OUT
=300mA
V
IN
=V
OUT
+1V, I
OUT
=0mA
V
IN
=V
OUT
+1V,
V
SHUTDOWN
in off mode
f=100Hz
AP2127-1.0V to
4.2V, Ripple 1Vp-p f=1kHz
V
IN
=V
OUT
+1V
f=10kHz
AP2127-4.75V and f=100Hz
5.2V, Ripple
f=1kHz
0.5Vp-p
V
IN
=V
OUT
+1V
f=10kHz
I
OUT
=30mA, -40
o
C≤T
A
≤85
o
C
V
OUT
=0V
1400
1200
900
600
170
140
60
0.1
68
68
54
63
63
45
Conditions
V
IN
=V
OUT
+1V
1mA≤I
OUT
≤300mA
V
IN
=V
OUT
+1V
1mA≤I
OUT
≤300mA
Min
0.784
98%×
V
OUT
2.5
300
400
0.6
0.06
1500
1300
1000
700
300
300
90
1.0
µA
µA
dB
dB
dB
dB
dB
dB
ppm/
o
C
mA
mV
Typ
0.8
Max
0.816
102%×
V
OUT
6
Unit
V
V
V
mA
%/A
%/V
Quiescent Current
Standby Current
I
Q
I
STD
Power Supply
Rejection Ratio
PSRR
Output Voltage
Temperature Coefficient
Short Current Limit
(∆V
OUT
/V
OUT
)
/∆T
I
SHORT
±
100
50
Oct. 2009 Rev. 1.3
6
BCD Semiconductor Manufacturing Limited
BCDSEMI [ BCD SEMICONDUCTOR MANUFACTURING LIMITED ]
