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US1050CM Datasheet(PDF) 2 Page - UNISEM |
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US1050CM Datasheet(HTML) 2 Page - UNISEM |
2 / 7 page US1050 2-34 Rev. 1.3 10/27/00 Note 1 : Low duty cycle pulse testing with Kelvin con- nections are required in order to maintain accurate data. Note 2 : Drop-out voltage is defined as the minimum differential voltage between Vin and Vout required to main- tain regulation at Vout. It is measured when the output voltage drops 1% below its nominal value. Note 3 : Minimum load current is defined as the mini- mum current required at the output in order for the out- put voltage to maintain regulation. Typically the resistor dividers are selected such that it automatically main- tains this current. ABSOLUTE MAXIMUM RATINGS ABSOLUTE MAXIMUM RATINGS Input Voltage (Vin) .................................................................. 7V Power Dissipation ............................................ Internally Limited Storage Temperature Range .............................. -65 °C TO 150°C Operating Junction Temperature Range .................. 0 °C TO 150°C PACKAGE INFORMATION PACKAGE INFORMATION 3 PIN PLASTIC TO220 ( T ) 3 PIN PLASTIC TO263 ( M ) 2 PIN PLASTIC POWER FLEX ( P ) 3 PIN PLASTIC TO252 ( D ) θJT=2.7°C/W θJA=60°C/W θJA=35°C/W for 1" Square pad θJA=70°C/W for 1" Square pad θJA=70°C/W for 0.5" Sq pad ELECTRICAL SPECIFICATIONS ELECTRICAL SPECIFICATIONS Unless otherwise specified ,these specifications apply over ,Cin=1uF,Cout=10uF,and Tj=0 to 150 °C.Typical values refer to Tj=25 °C. PARAMETER SYM TEST CONDITION MIN TYP MAX UNITS Reference Voltage VREF Io=10mA,Tj=25 °C,(Vin-Vo)=1.5V 1.243 1.250 1.257 V Io=10mA, (Vin-Vo)=1.5V 1.237 1.250 1.263 Line Regulation Io=10mA,1.3V<(Vin-Vo)<7V 0.2 % Load Regulation (note 1) Vin=3.3V,Vadj=0,10mA<Io<5A 0.4 % Dropout Voltage (note 2) ∆VO Note 2 , Io=5A 1.1 1.3 V Current Limit Vin=3.3V,dVo=100mV 5.1 A Minimum Load Current Vin=3.3V,Vadj=0V 5 10 mA (note 3) Thermal Regulation 30 mS PULSE,Vin-Vo=3V,Io=5A 0.01 0.02 %/W Ripple Rejection f=120HZ ,Co=25uF Tan Io=2.5A,Vin-Vo=3V 60 70 dB Adjust Pin Current IADJ Io=10mA,Vin-Vo=1.5V,Tj=25 Io=10mA,Vin-Vo=1.5V 55 120 uA Adjust Pin Current Change Io=10mA,Vin-Vo=1.5V,Tj=25 0.2 5 uA Temperature Stability Vin=3.3V,Vadj=0V,Io=10mA 0.5 % Long Term Stability Tj=125 °C,1000 Hrs 0.3 1 % RMS Output Noise Tj=25 °C 10hz<f<10khz 0.003 %Vo 1 2 3 FRONT VIEW Adj Tab is Vout Vin Vout 1 2 3 FRONT VIEW Adj Vout Vin Tab is Vout 1 4 3 FRONT VIEW Adj Tab is Vout Vin FRONT VIEW 1 4 3 Tab is Vout Adj Vin |
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