Fremont Micro Devices FT531xx
www.fremontmicro.com Page 7 of 23 DS531-A8
Vout=1.3V; En=Vin=(Vout+1)V; Cout=1uF unless otherwise noted
PARAMETER SYMBOL CONDITIONS MIN
TYP
MAX
UNITS
Output Voltage
Accuracy
Vout Iout=1mA -2 --- +2 %
Imax Vin=Vout+1V 250 300 --- mA
Current Limiter
Ishort Vin=Vout+1V --- 20 --- mA
Line Regulations Vline (Vout+1.0V)~6V --- 0.01
0.3 %/V
Load Regulation Vload 1mA Iout 100mA --- 10 --- mV
Dropout Voltage Vdrop Iout=100mA --- 380 --- mV
Supply Current Iq Vin=(Vout+1)V,Iout=0mA --- 36 --- uA
Standby Current Istby Shut down --- 0.01
1 uA
Temperature
Coefficient
Vout/ ( Temp*
Vo ut )
Iout=30mA
-40°C
Temp 85°C
--- 100 --- ppm/
Output Noise
Voltage
e
NO
10Hz~100kHz --- 30 --- uVrms
PSRR@1k --- 72 ---
Ripple
Rejection Rate
PSRR@10k
Vin=Vout+1VDC+1Vp-pAC
Iout=30mA
--- 60 ---
dB
EN Input
Bias Current
Ien --- 0 100 nA
VL --- --- --- 0.3 V
EN Threshold
VH --- 1.2 --- 6 V
* Dropout voltage is defined as the input to output differential at which the output voltage drops 2%
below its nominal value measured at 1V differential.
