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Data Sheet
1A LOW NOISE CMOS LDO REGULATOR WITH ENABLE AP2114
Jan. 2013 Rev. 2. 2 BCD Semiconductor Manufacturing Limited
11
Electrical Characteristics (Continued)
AP2114-2.5 Electrical Characteristics (Note 2)
(V
IN
=3.5V, C
IN
=4.7μF (Ceramic), C
OUT
=4.7μF (Ceramic), Typical T
A
= 25°C, Bold typeface applies over -40
O
CT
A
85
O
C
ranges, unless otherwise specified (Note 3))
Parameter Symbol Test Conditions Min Typ Max Unit
Output Voltage V
OUT
V
IN
=3.5V, 1mA I
OUT
30mA
V
OUT
×98.5%
2.5
V
OUT
×101.5%
V
Maximum Output Current I
OUT(MAX)
V
IN
=3.5V, V
OUT
=2.463V to 2.537V 1.0 A
Load Regulation
V
OUT
/V
OUT
I
OUT
Vout=2.5V, V
IN
=Vout+1V
1mA I
OUT
1A
0.2 1.0 %/A
Line Regulation
V
OUT
/V
OUT
V
IN
3.5VV
IN
6V, I
OUT
=30mA -0.1 0.02 0.1 %/V
Dropout Voltage V
DROP
I
OUT
=1A 450 750 mV
Quiescent Current I
Q
V
IN
=3.5V, I
OUT
=0mA 60 80
μA
Power Supply Rejectio
n
Ratio
PSRR
Ripple 1Vp-p
V
IN
=3.5V,
I
OUT
=100mA
f=100Hz 65
dB
f=1KHz 65
Output Voltage
Temperature Coefficient
V
OUT
/V
OUT
T
I
OUT
=30mA
±30
ppm/°C
Short Current Limit I
SHORT
V
OUT
=0V 50 mA
RMS Output Noise V
NOISE
10Hz f 100kHz 30
μV
RMS
V
EN
High Voltage V
IH
Enable logic high, regulator on 1.5
V
V
EN
Low Voltage V
IL
Enable logic low, regulator off 0.4
Standby Current I
STD
V
IN
=3.5V, V
EN
in OFF mode 0.01 1.0
μA
Start-up Time t
S
N
o Loa
d
20
μs
EN Pull Down Resistor R
PD
3.0
MΩ
V
OUT
Discharge Resistor R
DCHG
Set EN pin at Low 60
Ω
Thermal Shutdown
Temperature
T
OTSD
160
°C
Thermal Shutdown
Hysteresis
T
HYOTSD
25
Thermal Resistance
(Junction to Case)
θ
JC
SOIC-8 74.6
°C /W
PSOP-8 43.7
SOT-223 50.9
TO-252-2 (1) /(3) /(4) 35
TO-263-3 22
Note 2: To prevent the Short Circuit Current protection feature from being prematurely activated, the input
voltage must be applied before a current source load is applied.
Note 3: Production testing at T
A
=25°C. Over temperature specifications guaranteed by design only.
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