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R5220D221B Datasheet(PDF) 4 Page - RICOH electronics devices division |
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R5220D221B Datasheet(HTML) 4 Page - RICOH electronics devices division |
4 / 25 page R5220x 4 ELECTRICAL CHARACTERISTICS • R5220xxxxA Topt =25°C Symbol Item Conditions Min. Typ. Max. Unit VIN Operating Input Voltage 2.8 5.5 V ISS1 Supply Current 1 (Standby mode) VIN =VOUT1+1.0V, VCE=GND, VMODE=GND or VIN VOUT1:DC/DC Set VOUT 0.1 1.0 µA ISS2 Supply Current 2 (Power Save mode) VIN =VCE=VOUT2+1.0V, VMODE=GND VOUT2:VR Set VOUT, IOUT =0mA 5 10 µA ISS3 Supply Current 3 VIN =VCE=VMODE=3.6V 350 450 µA DC/DC Part Topt =25°C Symbol Item Conditions Min. Typ. Max. Unit VOUT1 > = 1.5 ×0.98 ×1.02 VOUT1 Output Voltage VIN =3.6V IOUT =50mA VOUT1 < 1.5 −0.03 +0.03 V fosc Oscillator Frequency VIN =3.6V 0.96 1.20 1.44 MHz VOUT1 < 1.5 0.15 0.30 TSTART Soft-start Time VIN =3.6V VOUT1 > = 1.5 0.20 0.35 ms RONP ON Resistance of Pch Transistor VIN =3.6V, ILX=−100mA 0.5 Ω RONN ON Resistance of Nch Transistor VIN =3.6V, ILX=−100mA 0.5 Ω ILXLEAK Lx Leakage Current VIN =5.5V, VCE=0V, LX=5.5V/0V −1.0 1.0 µA ∆VOUT/ ∆Topt Output Voltage Temperature Coefficient −40°C < = Topt < = 85°C ±150 ppm/ °C Maxduty Oscillator Maximum Duty Cycle VOUT =0V 100 % ILXlim Lx Current Limit VIN =3.6V 500 800 mA Tprot Protection Delay Circuit VIN =3.6V 1.0 3.0 7.0 ms VUVLO1 UVLO Threshold Voltage VIN =VCE=VMODE, VOUT=0V 2.00 2.35 2.75 V VUVLO2 UVLO Released Voltage VIN =VCE=VMODE, VOUT=0V 2.05 2.45 2.80 V VMODEH MODE "H" Input Voltage 1.0 V VMODEL MODE "L" Input Voltage 0 0.3 V VR Part Topt =25°C Symbol Item Conditions Min. Typ. Max. Unit VOUT2 > = 1.5 ×0.98 ×1.02 VOUT2 Output Voltage VIN =VOUT2+1.0V IOUT =10mA VOUT2 < 1.5 −0.03 +0.03 V IOUT Output Current VIN =VOUT2+1.0V 50 mA VOUT2 < 2.3 15 40 2.3 < = VOUT2 < 3.0 25 50 ∆VOUT2/ ∆IOUT Load Regulation VIN =VOUT2+1.0V 10 µA < = IOUT < = 25mA VOUT2 > = 3.0 35 65 mV VOUT2 < 1.8 0.7 VDIF Dropout Voltage IOUT =50mA VOUT2 > = 1.8 0.3 V 2.8V < = VIN < = 5.5V IOUT =25mA VOUT2 < 2.3 ∆VOUT2/ ∆VIN Line Regulation VOUT2 +0.5V < = VIN < = 5.5V IOUT =25mA VOUT2 > = 2.3 0.2 %/V RR Ripple Rejection Refer to Typical Characteristics dB ∆VOUT/ ∆Topt Output Voltage Temperature Coefficient IOUT =30mA, −40°C < = Topt < = 85°C ±100 ppm/ °C Ilim Short Current Limit VOUT =0V 60 mA IPDC CE pull-down current 0.12 0.40 0.70 µA VCEH CE "H" Input Voltage 1.0 V VCEL CE "L" Input Voltage 0 0.3 V |
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