R1121N331B-TR RICOH Co.,Ltd., R1121N331B-TR Datasheet
R1121N331B-TR
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R1121N331B-TR Summary of contents
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OUTLINE The R1121N Series are voltage regulator ICs with high output voltage accuracy, extremely low supply current, low ON- resistance and high ripple rejection by CMOS process. Each of these voltage regulator ICs consists of a voltage reference unit, an ...
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SELECTION GUIDE The output voltage, the active type, the packing type, and the taping type for the ICs can be selected at the user's request. The selection can be made by designating the part number as shown below : R1121XXX1X-XX ...
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ABSOLUTE MAXIMUM RATINGS Symbol OUT P Topt Tstg ELECTRICAL CHARACTERISTICS R1121NXX1A Symbol Item V Output Voltage OUT I Output Current OUT Load Regulation OUT OUT V Dropout Voltage DIF I Supply Current SS ...
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R1121NXX1B Symbol Item V Output Voltage OUT I Output Current OUT Load Regulation OUT OUT V Dropout Voltage DIF I Supply Current SS Istandby Supply Current (Standby) Line Regulation OUT IN RR Ripple Rejection ...
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OPERATION R1121NXX1A Vref Current Limit these ICs, fluctuation of Output Voltage, V with a reference voltage by Error Amplifier, so that a constant voltage is output. A current limit circuit for protection at short ...
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TEST CIRCUITS R1121Nxx1B Series 2 GND 0.1 F Standard test Circuit Fig.1 Standard test Circuit R1121Nxx1B Series P.G 2 GND Ripple Rejection, Line Transient Response Test Circuit Fig.3 ...
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TYPICAL CHARACTERISTICS 1) Output Voltage vs. Output Current R1121N181B 2.0 1.8 1.6 3.8V 1.4 1.2 1.0 0.8 0 2.1V IN 0.4 0.2 0.0 0 100 200 Output Current I R1121N401B 5.0 4.5 4.0 3.5 3.0 2.5 2.0 1.5 ...
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R1121N401B 4 1mA OUT 4.0 3.5 30mA 3.0 50mA 2.5 2.0 3.0 4.0 5.0 Input Voltage V 3) Dropout Voltage vs. Output Current R1121N181B 1.20 1.00 0.80 0.60 0.40 0.20 0. Output Current I R1121N401B 0.40 ...
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Output Voltage vs. Temperature R1121N181B 1.90 1.88 1.86 1.84 1.82 1.80 1.78 1.76 1.74 1.72 1.70 -50 - Temperature Topt ( C) R1121N401B 4.10 4.08 4.06 4.04 4.02 4.00 3.98 3.96 3.94 3.92 3.90 -50 -25 0 ...
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R1121N401B 1.0 2.0 3.0 4.0 Input Voltage V 6) Supply Current vs. Temperature R1121N181B -50 0 Temperature Topt ( C) R1121N401B ...
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Dropout Voltage vs. Set Output Voltage R1121N 1.0 0.9 0.8 0.7 0.6 0.5 0.4 0.3 0.2 0.1 0.0 1.0 2.0 3.0 Set Output Voltage Vreg (V) 8) Ripple Rejection vs. Frequency R1121N181B OUT ...
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R1121N401B OUT 1mA OUT 30mA OUT 50mA OUT 10 0 0.1 1 Frequency f (kHz) 9) Ripple Rejection vs. Input Voltage (DC ...
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Line Transient Response 3.4 3.3 3.2 3.1 3.0 2.9 2.8 0 3.4 3.3 3.2 3.1 3.0 2.9 2.8 0 3.4 3.3 3.2 3.1 3.0 2.9 2.8 0 Rev.1.11 R1121N301B TIme R1121N301B 20 ...
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Load Transient Response 3.4 3.3 3.2 3.1 3.0 2.9 2 3.4 3.3 3.2 3.1 3.0 2.9 2 3.4 3.3 3.2 3.1 3.0 2.9 2 Rev.1.11 R1121N301B V = =Tantalum 1 F ...
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TECHNICAL NOTES When using these ICs, be sure to consider following points these ICs, phase compensation is made for securing stable operation even if the load current is varied. For this purpose, Vin Ceramic Capacitor 1 F The ...
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TYPICAL APPLICATION CE IN R1121NXX1A GND Cap. Rev.1.11 OUT IN OUT Cap. Cap R1121Nxx1B OUT GND Cap. OUT ...