Diodes AP2128 - Manual (Page 7)

300mA HIGH SPEED, EXTREMELY LOW NOISE CMOS LDO REGULATOR AP2128
Data Sheet
7
Sept. 2010 Rev. 2.0 BCD Semiconductor Manufacturing Limited
Parameter Symbol Conditions Min Typ Max Unit
Output Voltage V
OUT
V
IN
=2.5V
1mA ≤I
OUT
≤300mA
98% ×
V
OUT
102% ×
V
OUT
V
Input Voltage V
IN
2.5 6 V
Maximum Output Current I
OUT(MAX)
V
IN
=2.5V,
V
OUT
=98% ×V
OUT
300 400 mA
Current Limit I
LIMIT
V
IN
=2.5V 450 mA
Load Regulation
∆V
OUT
/( ∆I
OUT*
V
OUT
)
V
IN
=2.5V,
1mA ≤I
OUT
≤300mA
0.6 %/A
Line Regulation
∆V
OUT
/( ∆V
IN
*V
OUT
)
V
IN
=2.5V to 6V
I
OUT
=30mA
0.06 %/V
Dropout Voltage V
DROP
V
OUT
=1.0V, I
OUT
=300mA 1400 1500
mV
V
OUT
=1.2V, I
OUT
=300mA 1200 1300
V
OUT
=1.5V, I
OUT
=300mA 900 1000
V
OUT
=1.8V, I
OUT
=300mA 600 700
Quiescent Current I
Q
V
IN
=2.5V, I
OUT
=0mA 60 90 µA
Standby Current I
STD
V
IN
=2.5V,
V
SHUTDOWN
in off mode
0.1 1.0 µA
Power Supply
Rejection Ratio
PSRR
Ripple 1Vp-p
V
IN
=3V
f=100Hz 68 dB
f=1KHz 68 dB
f=10KHz 54 dB
Output Voltage
Temperature Coefficient ( ∆V
OUT
/V
OUT
)
/ ∆T
I
OUT
=30mA, -40
o
C ≤T
A
≤85 o
C
± 100 ppm/ o C
Short Current Limit I
SHORT
V
OUT
=0V 50 mA
Soft Start Time t
UP
50 µs
Shutdown "High" Voltage Shutdown input voltage "High" 1.5 6 V
Shutdown "Low" Voltage Shutdown input voltage "Low" 0 0.4 V
V
OUT
Discharge MOSFET
R
DS(ON)
Shutdown input voltage "Low" 60 Ω
Shutdown Pull Down Resis-
tance
3 M Ω
Thermal Shutdown 165 o C
Thermal Shutdown Hysteresis 30 o C
Thermal Resistance θ
JC
SOT-23-5 150 o C/W
(AP2128-1.0V/1.2V/1.5V/1.8V, V
IN
min.=2.5V, C
IN
=1 µF, C
OUT
=1 µF, Bold typeface applies over -40 o C ≤T
A
≤85 o C, unless oth-
erwise specified.)
Electrical Characteristics (Continued)