UR133/A LINEAR INTEGRATED CIRCUIT
UNISONIC TECHNOLOGIES CO., LTD 4 of 8
www.unisonic.com.tw QW-R102-005,S
ELECTRICAL CHARACTERISTICS(Cont.)
For UR133/A-ADJ 3.3V, 3.5V, 3.6V, 3.7V, 4.7V, 5.0V
PARAMETER SYMBOL TEST CONDITIONS MIN TYP MAX UNIT
ADJUSTABLE (R1=120Ω, R2=200Ω, VOUT=3.3V)
Reference Voltage VREF V
IN-VOUT=2V, IL=2mA 1.238 1.250 1.262 V
Output Voltage-UR133/A VOUT I
L=2mA, VIN-VOUT=1.4V
3.23 3.30 3.37 V
3.43 3.50 3.57 V
3.53 3.60 3.67 V
3.63 3.70 3.77 V
4.61 4.70 4.79 V
4.90 5.00 5.10 V
Dropout Voltage
(Notes 4, 5)
UR133 VD IL=300mA 1.3 V
UR133A IL=500mA
UR133-ADJ VD IL=300mA 1.5 V
UR133A-ADJ IL=500mA
Line Regulation ΔVOUT I
L=2mA, VIN-VOUT=2V ~ VIN=12V 0.5 %VOUT
Load Regulation
(Note 2)
UR133 ΔVOUT IL=2mA ~ 300mA, VIN-VOUT =2V 10 30 mV
UR133A IL=2mA ~ 500mA, VIN-VOUT =2V 10 50
mV
Current Limit (Note 3) UR133 ILIMIT V
IN-VOUT=2V, VOUT=0V 350 mA
UR133A 550 mA
Standby current IST-BY I
L=0, VIN=12V 5.0 mA
Adjust Pin Current IADJ V
IN=12V 120
μA
Adjust Pin Current
Change
UR133 ΔIADJ VIN=2.75V~12V,IL=1mA~300mA 5
μA
UR133A VIN=2.75V~12V,IL=1mA~500mA 5
μA
Output Voltage Temperature
Coefficient 50 150 PPM/°C
Note 1: Guaranteed by design.
Note 2: Regulation is measured at constant junction temperature, using pulsed ON time.
Note 3: Current Limit is measured at constant junction temperature, using pulsed ON time.
Note 4: Dropout is measured at constant junction temperature, using pulsed ON time, and the criterion is VOUT
inside target value±2%.
Note 5: Dropout test is skipped at the condition of VIN<3V.