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| LOW NOISE 150mA LDO REGULATOR 51 6(5,(6 NO. 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Max. & 5 R1112N OPERATION R1112Nxx1A R1112Nxx1B 1 VDD 5 VOUT 1 VDD 5 VOUT R1 Vref CE 3 Current Limit R2 GND CE 3 Vref Current Limit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xx1B Series 5 OUT IOUT IN ISS VDD 1 VOUT R1112Nxx1B Series 5 OUT 2 2.2F GND 2.2F 2 GND Fig.1 Standard test Circuit CE 3 Fig.2 Supply Current Test Circuit CE 3 IN VDD 1 VOUT R1112Nxx1B Series 5 OUT IOUT IN VDD 1 VOUT R1112Nxx1B Series 5 OUT P.G 2 GND 2.2F 2 GND I1 I2 Fig.3 Ripple Rejection, Line Transient Response Test Circuit Fig.4 Load Transient Response Test Circuit 7 R1112N TYPICAL APPLICATION CE CE IN VDD R1112Nxx1A Series GND VOUT OUT IN VDD R1112Nxx1B VOUT Series GND Cap. OUT Cap. Cap. Cap. ([WHUQDO &RPSRQHQWV 2XWSXW &DSDFLWRU &HUDPLF ) 6HW 2XWSXW 9ROWDJH LQ WKH UDQJH IURP WR 9 &HUDPLF ) 6HW 2XWSXW 9ROWDJH LQ WKH UDQJH IURP WR 9 ,QSXW &DSDFLWRU &HUDPLF ) 8 R1112N TYPICAL CHARACTERISTICS 1) Output Voltage vs. Output Current R11x2N151B 1.8 1.6 Output Voltage VOUT(V) R11x2N201B 2.5 2 VIN=2.3V Output Voltage VOUT(V) 1.4 1.2 1 0.8 0.6 0.4 0.2 0 0 100 200 300 400 500 Output Current IOUT(mA) VIN=2.0V VIN=2.5V VIN=3.5V 1.5 1 0.5 0 0 VIN=2.5V VIN=3.0V VIN=4.0V 100 200 300 400 500 Output Current IOUT(mA) R11x2N301B 3.5 Output Voltage VOUT(V) R11x2N401B 5 3 Output Voltage VOUT(V) 4 VIN=4.3V 2.5 VIN=3.3V 2 1.5 1 0.5 0 0 VIN=3.5V VIN=4.0V VIN=5.0V 3 2 1 0 VIN=4.5V VIN=5.0V VIN=6.0V 100 200 300 400 500 0 100 200 300 400 500 Output Current IOUT(mA) Output Current IOUT(mA) R11x2N501B 6 Output Voltage VOUT(V) 5 4 3 2 1 0 0 100 200 300 400 500 Output Current IOUT(mA) VIN=5.3V VIN=5.5V VIN=6.0V VIN=7.0V 9 R1112N 2) Output Voltage vs. Input Voltage R11x2N151B 1.600 Output Voltage VOUT(V) R11x2N201B 2.100 Output Voltage VOUT(V) 1.500 1.400 1.300 1.200 1.100 1.000 1 2 3 4 5 6 7 Input Voltage VIN(V) IOUT=1mA IOUT=30mA IOUT=50mA 2.000 1.900 1.800 1.700 1.600 1.500 1 2 3 4 5 6 7 Input Voltage VIN(V) IOUT=1mA IOUT=30mA IOUT=50mA R11x2N301B 3.100 4.500 3.000 2.900 2.800 2.700 2.600 2.500 2 3 4 5 6 7 Input Voltage VIN(V) IOUT=1mA IOUT=30mA IOUT=50mA R11x2N401B Output Voltage VOUT(V) Output Voltage VOUT(V) 4.000 3.500 3.000 IOUT=1mA IOUT=30mA IOUT=50mA 2.500 2 3 4 5 6 7 Input Voltage VIN(V) R11x2N501B 5.500 5.000 4.500 4.000 3.500 3.000 2.500 2 3 4 5 6 7 Input Voltage VIN(V) IOUT=1mA IOUT=30mA IOUT=50mA 10 Output Voltage VOUT(V) R1112N 3) Dropout Voltage vs. Output Current R11x2N151B 0.600 Dropout Voltage VDIF(V) R11x2N201B 0.600 0.500 0.400 0.300 0.200 0.100 0.000 Topt=-40C Topt=25C Topt=85C 0.400 0.300 0.200 0.100 0.000 0 50 100 150 Dropout Voltage VDIF(V) 0.500 Topt=-40C Topt=25C Topt=85C 0 50 100 150 Output Current IOUT(mA) Output Current IOUT(mA) R11x2N301B 0.600 Dropout Voltage VDIF(V) R11x2N401B 0.600 0.500 0.400 0.300 0.200 0.100 0.000 Topt=-40C Topt=25C Topt=85C 0.400 0.300 0.200 0.100 0.000 0 50 100 150 Dropout Voltage VDIF(V) 0.500 Topt=-40C Topt=25C Topt=85C 0 50 100 150 Output Current IOUT(mA) Output Current IOUT(mA) R11x2N501B 0.600 0.500 0.400 0.300 0.200 0.100 0.000 0 50 100 150 Output Current IOUT(mA) Topt=-40C Topt=25C Topt=85C Dropout Voltage VDIF(V) 11 R1112N 4) Output Voltage vs. Temperature R11x2N151A/B VIN=2.5V CIN=1F COUT=2.2F IOUT=30mA 1.53 1.52 Output VoltageVOUT(V) R11x2N201B VIN=3.0V CIN=1F COUT=2.2F IOUT=30mA 2.10 2.08 2.06 2.04 2.02 2.00 1.98 1.96 1.94 1.92 1.90 Output VoltageVOUT(V) 1.51 1.50 1.49 1.48 1.47 -50 -25 50 Temperature Topt (C) 0 25 75 100 -50 -25 0 25 50 Temperature Topt (C) 75 100 R11x2N301A/B VIN=4.0V CIN=1F COUT=2.2F IOUT=30mA 3.06 3.04 3.02 3.00 2.98 2.96 2.94 -50 -25 50 Temperature Topt (C) 0 25 75 100 4.08 4.06 Output VoltageVOUT(V) R11x2N401A/B VIN=5.0V CIN=1F COUT=2.2F IOUT=30mA Output VoltageVOUT(V) 4.04 4.02 4.00 3.98 3.96 3.94 3.92 -50 -25 0 25 50 Temperature Topt (C) 75 100 R11x2N501A/B VIN=6.0V CIN=1F COUT=2.2F IOUT=30mA 5.10 5.08 5.06 5.04 5.02 5.00 4.98 4.96 4.94 4.92 4.90 -50 -25 0 25 50 Temperature Topt (C) 75 100 12 Output VoltageVOUT(V) R1112N 5) Supply Current vs. Input Voltage R11x2N151B 120 120 R11x2N201B Supply Current ISS (A) 100 80 60 40 20 0 Supply Current ISS (A) 100 80 60 40 20 0 1 2 3 4 5 Input Voltage VIN (V) 6 7 1 2 3 4 5 Input Voltage VIN (V) 6 7 R11x2N301B 120 120 R11x2N401B Supply Current ISS (A) 100 80 60 40 20 0 Supply Current ISS (A) 100 80 60 40 20 0 1 2 3 4 5 Input Voltage VIN (V) 6 7 1 2 3 4 5 Input Voltage VIN (V) 6 7 R11x2N501B 120 Supply Current ISS (A) 100 80 60 40 20 0 1 2 3 4 5 Input Voltage VIN (V) 6 7 13 R1112N 6) Supply Current vs. Temperature R11x2N151A/B 200 VIN=2.5V CIN=1F COUT=2.2F 200 R11x2N201A/B VIN=3.0V CIN=1F COUT=2.2F Supply Current ISS (A) 150 Supply Current ISS (A) -25 50 75 0 25 Temperature Topt (C) 100 150 100 100 50 50 0 -50 0 -50 -25 0 25 50 75 Temperature Topt (C) 100 R11x2N301A/B 200 VIN=4.0V CIN=1F COUT=2.2F 200 R11x2N401A/B VIN=5.0V CIN=1F COUT=2.2F Supply Current ISS (A) 150 Supply Current ISS (A) 50 75 0 25 Temperature Topt (C) 100 150 100 100 50 50 0 -50 -25 0 -50 -25 50 75 0 25 Temperature Topt (C) 100 R11x2N501A/B 200 VIN=6.0V CIN=1F COUT=2.2F Supply Current ISS (A) 150 100 50 0 -50 -25 50 75 0 25 Temperature Topt (C) 100 14 R1112N 7) Ripple Rejection vs. Frequency R11x2N151A/B 90.00 Ripple Rejection RR (dB) R11x2N201A/B 90.00 Ripple Rejection RR (dB) VIN=2.5V+0.5Vp-p COUT=2.2F IOUT=30mA VIN=3.0V+0.5Vp-p COUT=2.2F IOUT=30mA 80.00 70.00 60.00 50.00 40.00 30.00 20.00 10.00 0.00 0.1 1 10 Frequency Freq (kHz) 100 80.00 70.00 60.00 50.00 40.00 30.00 20.00 10.00 0.00 0.1 1 10 Frequency Freq (kHz) 100 R11x2N301A/B 90.00 Ripple Rejection RR (dB) R11x2N401A/B 90.00 Ripple Rejection RR (dB) VIN=4.0V+0.5Vp-p COUT=2.2F IOUT=30mA VIN=5.0V+0.5Vp-p COUT=2.2F IOUT=30mA 80.00 70.00 60.00 50.00 40.00 30.00 20.00 10.00 0.00 0.1 1 10 Frequency Freq (kHz) 100 80.00 70.00 60.00 50.00 40.00 30.00 20.00 10.00 0.00 0.1 1 10 Frequency Freq (kHz) 100 R11x2N501A/B 90.00 Ripple Rejection RR (dB) VIN=6.0V+0.5Vp-p COUT=2.2F IOUT=30mA 80.00 70.00 60.00 50.00 40.00 30.00 20.00 10.00 0.00 0.1 1 10 Frequency Freq (kHz) 100 15 R1112N 8) Ripple Rejection vs. Input Voltage (DC bias) R11x2N301B 90.00 COUT=Ceramic 2.2F IOUT=1mA 90.00 R11x2N301B COUT=Ceramic 2.2F IOUT=10mA Ripple Rejection RR (dB) 80.00 70.00 60.00 50.00 40.00 30.00 20.00 10.00 0.00 3.10 f=400Hz f=1kHz f=10kHz Ripple Rejection RR (dB) 80.00 70.00 60.00 50.00 40.00 30.00 20.00 10.00 0.00 3.10 f=400Hz f=1kHz f=10kHz 3.20 3.30 3.40 Input Voltage VIN (V) 3.50 3.20 3.30 3.40 Input Voltage VIN (V) 3.50 R11x2N301B 90.00 COUT=Ceramic 2.2F IOUT=50mA Ripple Rejection RR (dB) 80.00 70.00 60.00 50.00 40.00 30.00 20.00 10.00 0.00 3.10 f=400Hz f=1kHz f=10kHz 3.20 3.30 3.40 Input Voltage VIN (V) 3.50 9) Input Transient Response R11x2N151B Tek Run : 2.50MS/s Average 7RSW & VIN 1 2 VOUT 9,1 99 ,287 P$ &,1 QRQH &287 ) Ch1 Ch1 1.00V Ch2 20.0mV M20.0s WUWI V 16 R1112N R11x2N201B Tek Run : 2.50MS/s Average 7RSW & VIN 1 2 VOUT 9,1 99 ,287 P$ &,1 QRQH &287 ) Ch1 1.00V Ch2 20.0mV M20.0s WUWI V 7RSW & R11x2N301B Tek Run : 2.50MS/s Average VIN 1 2 VOUT 9,1 99 ,287 P$ &,1 QRQH &287 ) Ch1 1.00V Ch2 20.0mV M20.0s WUWI V 7RSW & R11x2N401B Tek Run : 2.50MS/s Average VIN 1 2 VOUT 9,1 99 ,287 P$ &,1 QRQH &287 ) WUWI V Ch1 1.00V Ch2 20.0mV M20.0s 17 R1112N R11x2N501B Tek Run : 2.50MS/s Average 7RSW & VIN 1 2 VOUT 9,1 99 ,287 P$ &,1 QRQH &287 ) Ch1 1.00V Ch2 20.0mV M20.0s WUWI V 10) Load Transient Response R11x2N151B Tek Run : 2.50MS/s Average 7RSW & 1 IOUT VOUT 2 ,287 P$P$ 9,1 9 &,1 ) &287 ) WUWI V 7RSW & Ch1 500mV Ch2 50.0mV M20.0s R11x2N201B Tek Run : 2.50MS/s Average 1 IOUT VOUT 2 ,287 P$P$ 9,1 9 &,1 ) &287 ) Ch1 500mV Ch2 50.0mV M20.0s WUWI V 18 R1112N R11x2N301B Tek Run : 2.50MS/s Average 7RSW & 1 IOUT VOUT 2 ,287 P$P$ 9,1 9 &,1 ) &287 ) WUWI V 7RSW & Ch1 500mV Ch2 50.0mV M20.0s R11x2N401B Tek Run : 2.50MS/s Average 1 IOUT VOUT 2 ,287 P$P$ 9,1 9 &,1 ) &287 ) Ch1 500mV Ch2 50.0mV M20.0s WUWI V 7RSW & R11x2N501B Tek Run : 2.50MS/s Average 1 IOUT ,287 P$P$ VOUT 2 9,1 9 &,1 ) &287 ) WUWI V Ch1 500mV Ch2 50.0mV M20.0s 19 R1112N TECHNICAL NOTES :KHQ XVLQJ WKHVH ,&V FRQVLGHU WKH IROORZLQJ SRLQWV ,Q WKHVH ,&V SKDVH FRPSHQVDWLRQ LV PDGH IRU VHFXULQJ VWDEOH RSHUDWLRQ HYHQ LI WKH ORDG FXUUHQW LV YDULHG )RU WKLV SXUSRVH EH VXUH WR XVH D FDSDFLWRU &287 ZLWK JRRG IUHTXHQF\ FKDUDFWHULVWLFV DQG (65 (TXLYDOHQW 6HULHV 5HVLVWDQFH RI ZKLFK LV LQ WKH UDQJH GHVFULEHG DV IROORZV 3 CE VOUT1 5 Ceramic Cap. R1112Nxx1B 1 VIN 2 GND ESR IOUT S.A Spectrum Analyzer Ceramic VIN Cap. Measuring Circuit for white noise; R1112Nxx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x2N151B COUT=2.2F,CIN=2.2F 100 100 R11x2N151B COUT=4.7F,CIN=2.2F 10 ESR () ESR () 10 1 1 0.1 0.1 0.01 0 30 90 60 IOUT (mA) 120 150 0.01 0 30 90 60 IOUT (mA) 120 150 20 R1112N R11x2N301B COUT=2.2F,CIN=2.2F 100 100 R11x2N301B COUT=4.7F,CIN=2.2F 10 ESR () 10 1 ESR () 0 30 90 60 IOUT (mA) 120 150 1 0.1 0.1 0.01 0.01 0 30 90 60 IOUT (mA) 120 150 21 |
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