Data Sheet
HIGH SPEED, EXTREMELY LOW NOISE LDO REGULATOR
Electrical Characteristics (Continued)
AP2122-2.5 Electrical Characteristics
(V
IN
=3.5V, T
J
=25
o
C, C
IN
=1µF, C
OUT
=1µF,
Bold
typeface applies over -40
o
C≤T
J
≤85
o
C, unless otherwise specified.)
Parameter
Output Voltage
Input Voltage
Output Current
Load Regulation
Line Regulation
Symbol
V
OUT
V
IN
I
OUT
V
RLOAD
V
RLINE
V
IN
-V
OUT
=1V
V
IN
=3.5V
1mA≤I
OUT
≤80mA
3V≤V
IN
≤6V
I
OUT
=30mA
I
OUT
=10mA
Dropout Voltage
V
DROP
I
OUT
=100mA
I
OUT
=150mA
Quiescent Current
Standby Current
Power Supply
Rejection Ratio
Output Voltage
Temperature Coefficient
Short Current Limit
RMS Output Noise
CE "High" Voltage
CE "Low" Voltage
CE Pull-down Internal
Resistance
R
PD
I
Q
I
STD
PSRR
∆V
OUT
/∆T
(∆V
OUT
/V
OUT
)/∆T
I
LIMIT
V
NOISE
V
IN
=3.5V, I
OUT
=0mA
V
IN
=3.5V
V
CE
in OFF mode
Ripple 0.5Vp-p, f=10kHz
V
IN
=3.5V
I
OUT
=30mA
V
OUT
=0V
T
A
=25
o
C
10Hz
≤f≤100kHz
CE input voltage "High"
CE input voltage "Low"
2.5
5
1.5
0.25
10
150
12
4
20
150
200
25
0.1
70
40
16
40
300
400
50
1
mV
Conditions
V
IN
=3.5V
1mA≤I
OUT
≤30mA
Min
2.45
Typ
2.5
Max
2.55
6
Unit
V
V
mA
mV
mV
AP2122
µ
A
µ
A
dB
µV/
o
C
ppm/
o
C
mA
±
250
±
100
50
30
µ
Vrms
V
V
MΩ
Sep. 2006 Rev. 1. 1
8
BCD Semiconductor Manufacturing Limited
BCDSEMI [ BCD SEMICONDUCTOR MANUFACTURING LIMITED ]
