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RQ5RW43AB Datasheet(PDF) 11 Page - RICOH electronics devices division |
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RQ5RW43AB Datasheet(HTML) 11 Page - RICOH electronics devices division |
11 / 23 page 7 RQ5RW 2 4 1 VOUT GND VDD CE Vref 3 Current Limit 2 4 1 VOUT GND VDD CE + – Vref 3 Current Limit + – RQ5RW ××A RQ5RW ××B R1 R2 Error Amp. Error Amp. R1 R2 OPERATION In these ICs, Output Voltage VOUT is detected by Feed-back Registers R1, R2, and the detected Output Voltage is compare with a reference voltage by Error Amplifier, so that a constant voltage is output. A current limit circuit working for Short Protect and a chip enable circuit are included. ELECTRICAL CHARACTERISTICS BY OUTPUT VOLTAGE (common characteristics) Topt=25˚C Symbol Item Conditions MIN. TYP. MAX. Unit ISS Supply Current VIN=setVOUT+2.0V 1.5 3.0 µA VIN=setVOUT+2.0V Istandby Standby Current VCE=VIN(RQ5RW ××A), 0.1 1.0 µA VCE=GND(RQ5RW ××B) ∆VOUT Line Regulation IOUT=1mA 0 0.05 0.20 %/V ∆VIN setVOUT+0.5V ≤VIN≤8V VIN Input Voltage 8.0 V ∆VOUT Output Voltage IOUT=10mA ±100 ppm/˚C ∆Topt Temperature Coefficient –40˚C ≤Topt≤85˚C Ilim Short Current Limit 40 mA RPU/RPD CE Pull-up / CE Pull-down Resistance 1.5 4.0 12.0 M Ω VCEH CE/CE Input Voltage “H” 1.5 V VCEL CE/CE Input Voltage “L” 0.25 V |
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