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R1218XXX1A Datasheet(PDF) 5 Page - RICOH electronics devices division |
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R1218XXX1A Datasheet(HTML) 5 Page - RICOH electronics devices division |
5 / 14 page R1218X 5 Symbol Item Conditions MIN. TYP. MAX. Unit VFB VFB Voltage Tolerance VIN=3.6V 0.19 0.20 0.21 V ∆VFB/∆T VFB Voltage Temperature Coefficient VIN=3.6V, -40 °C≤Topt≤85°C ±150 ppm / °C IFB VFB Input Current VIN=5.5V, VFB=0V or 5.5V -0.1 0.1 µA RON Switch On Resistance VIN=3.6V, ISW=100mA 1.5 Ω R1218XXX1A VLX=20V 0.0 3.0 µΑ IOFF Switch Leakage Current R1218XXX2A VLX=29V 0.0 3.0 µΑ ILIM Switch Current Limit VIN=3.6V 400 700 1000 mA fOSC Oscillator Frequency VIN=3.6V, VOUT=VFB=0V 1000 1200 1400 kHz Maxduty Maximum Duty Cycle VIN=3.6V, VOUT=VFB=0V 86 91 % R1218X021A 8.5 9.5 10.5 V R1218X031A 13.0 14.0 15.0 V R1218X041A 17.0 18.5 20.0 V R1218X052A 21.5 23.0 24.5 V VOVP1 OVP Detector Threshold VIN=3.6V VOUT rising R1218X062A 26.0 27.5 29.0 V R1218X021A VOVP1-0.5 V R1218X031A VOVP1-0.75 V R1218X041A VOVP1-1.0 V R1218X052A VOVP1-1.25 V VOVP2 OVP Released Voltage VIN=3.6V VOUT falling R1218X062A VOVP1-1.5 V • R1218XXX1A Symbol Item Conditions MIN. TYP. MAX. Unit VF Diode Forward Voltage IDIODE=100mA 0.8 V IR Diode Leakage Current VOUT=20V, VLX=0V 10 µA TEST CIRCUITS Supply Current Test Circuit UVLO Detector Threshold/ UVLO Released Voltage V V V V IN IN IN IN CE CE CE CE GND GND GND GND V V V VFB FB FB FB V V V VIN IN IN IN L L L LXXXX CE CE CE CE GND GND GND GND V V V V FB FB FB FB |
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