YB1253
300mA, Low Power, High PSRR LDO Regulator
Electrical Characteristics
Table 2
T
A
= 25℃, V
IN
= ( V
OUT
+ 1 V ), C
IN
= C
OU T
= 1.0μF, V
EN
= V
IN,
unless otherwise
t d
Function Parameter
Conditions
Min
2.0
Predefined
I
OUT
= 10mA, VOUT >= 1.3V
I
OUT
= 10mA, VOUT = 1.2V
Short-circuit output
Vout = 3.6V, Iout = 300 mA
Vout = 3.3V, Iout = 300 mA
Dropout Voltage (
Note 1
)
Vout = 2.8V, Iout = 300 mA
Vout = 1.8V, Iout = 300 mA
Vout = 1.2V, Iout = 300 mA
Ground Current
Line Regulation
Load Regulation
Shutdown Supply Current
Ripple Rejection (PSRR)
Start Up Delay
(Note 3)
Shutdown Delay
EN Logic Low Level
EN Logic High Level
EN Input Bias Current
Thermal Shutdown
Thermal Hysteresis
below nominal V
OUT
where Vin=Vout + 1V for nominal V
OUT
.
Note 2:
PSRR is tested at Vin=3.8+1Vppac, Vout=2.8V, I_load=1mA.
Note 3:
Time needed for V
OUT
to reach 90% of final value.
I
ground
= Iin - Iout
Vin = (Vout+1V) to 5.5V, Iout =10mA
Iout = 1mA to 300 mA
EN = Vin=0V
(Note 2)
Typ
Max
5.5
3.6
+2.0
+4.0
Units
V
V
%
%
mA
Input Voltage Range
Output Voltage, VOUT
Output Voltage Accuracy
Output Current Limit
1.2
-2.0
0
500
300
350
430
600
900
10
0.10
0.005
mV
μA
0.20
0.01
1
%/V
%/mA
μA
dB
μS
mS
mS
0.4
V
V
μA
°C
°C
50
200
1
1
R
load
=100ohm
R
load
=10K ohm, VOUT=1.5V
R
load
=10K ohm, VOUT=1.2V
Vin = 2.0V to 5.5V
Vin = 2.0V to 5.5V
Vin = EN = 3V
Shutdown Temperature
1.2
Vin
1.5
160
20
Note 1:
The dropout voltage varies depending on output voltage selection. Dropout is defined as V
IN
–V
OUT
when V
OUT
is 100mV
YB1253 Rev. 1.5
www.yobon.com.tw
4
YOBON [ YOBON TECHNOLOGIES,INC. ]
