YB1253 Datasheet, PDF (4/11 Pages) YOBON TECHNOLOGIES,INC. – 300mA, Low Power, High PSRR LDO Regulator

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
td
Function Parameter
Conditions
Min
Typ
Max Units
Input Voltage Range
2.0
5.5
V
Output Voltage, VOUT
Predefined
1.2
3.6
V
I_OUT = 10mA, VOUT >= 1.3V
-2.0
Output Voltage Accuracy
I_OUT = 10mA, VOUT = 1.2V
0
+2.0 %
+4.0 %
Output Current Limit
Short-circuit output
500
mA
Vout = 3.6V, Iout = 300 mA
300
Vout = 3.3V, Iout = 300 mA
350
Dropout Voltage (Note 1)
Vout = 2.8V, Iout = 300 mA
430
mV
Vout = 1.8V, Iout = 300 mA
600
Vout = 1.2V, Iout = 300 mA
900
Ground Current
Iground = Iin - Iout
10
μA
Line Regulation
Vin = (Vout+1V) to 5.5V, Iout =10mA
0.10 0.20 %/V
Load Regulation
Iout = 1mA to 300 mA
0.005 0.01 %/mA
Shutdown Supply Current EN = Vin=0V
1
μA
Ripple Rejection (PSRR)
(Note 2)
50
dB
Start Up Delay (Note 3)
Rload=100ohm
200
μS
Shutdown Delay
Rload=10K ohm, VOUT=1.5V
Rload=10K ohm, VOUT=1.2V
1
mS
1
mS
EN Logic Low Level
Vin = 2.0V to 5.5V
0.4
V
EN Logic High Level
Vin = 2.0V to 5.5V
1.2
Vin
V
EN Input Bias Current
Vin = EN = 3V
1.5
μA
Thermal Shutdown
Shutdown Temperature
160
°C
Thermal Hysteresis
20
°C
Note 1: The dropout voltage varies depending on output voltage selection. Dropout is defined as VIN–VOUT when VOUT is 100mV
below nominal VOUT where Vin=Vout + 1V for nominal VOUT.
Note 2: PSRR is tested at Vin=3.8+1Vppac, Vout=2.8V, I_load=1mA.
Note 3: Time needed for VOUT to reach 90% of final value.
YB1253 Rev. 1.5
www.yobon.com.tw
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