R1122N

LOW NOISE 150m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• 8OWUD/RZ 6XSSO\ &XUUHQW  7\S µ$ • 6WDQGE\ 0RGH &XUUHQW 7\S µ$ • /RZ 'URSRXW 9ROWDJH  7\S 9 ,287 • +LJK 5LSSOH 5HMHFWLRQ  7\S G% I • ([FHOOHQW /LQH 5HJXODWLRQ 7\S  9 • +LJK $FFXUDF\ 2XWSXW 9ROWDJH  ± • 6PDOO 3DFNDJH  627 0LQLPROG • 2XWSXW 9ROWDJH  6WHSZLVH VHWWLQJ ZLWK D VWHS RI 9 LQ WKH UDQJH RI 9 WR 9 LV SRVVLEOH • %XLOWLQ FKLS HQDEOH FLUFXLW  7\SHV $ DFWLYH ´/ % DFWLYH ´+µ µ • %XLOWLQ )ROGEDFN SURWHFWLRQ FLUFXLW 6KRUW &XUUHQW 7\S P$ • 3LQRXW 6LPLODU WR WKH 7. 7. • &HUDPLF &DSDFLWRUV DUH 5HFRPPHQGDEOH WR EH XVHG ZLWK WKLV ,& • /RZ 7HPSHUDWXUH'ULIW &RHIILFLHQW RI 2XWSXW 9ROWDJH 7\S ±SSP°& P$ 9 2XWSXW W\SH N+] APPLICATIONS • 3RZHU VRXUFH IRU FHOOXODU SKRQHV VXFK DV *60 &'0$ 3&6 DQG VR IRUWK • 3RZHU VRXUFH IRU GRPHVWLF DSSOLDQFHV VXFK DV FDPHUDV 9&5V DQG FDPFRUGHUV • 3RZHU VRXUFH IRU EDWWHU\SRZHUHG HTXLSPHQW 1 R1122N BLOCK DIAGRAM R1122Nxx1A 3 VOUT _ + Vref CE 4 Current Limit 2 GND CE 4 Vref Current Limit 2 GND VDD _ + R1122Nxx1B 1 VOUT 3 VDD 1 SELECTION GUIDE 7KH RXWSXW YROWDJH WKH DFWLYH W\SH WKH SDFNLQJ W\SH DQG WKH WDSLQJ W\SH IRU WKH ,&V FDQ EH VHOHFWHG DW WKH XVHU V UHTXHVW 7KH VHOHFWLRQ FDQ EH PDGH E\ GHVLJQDWLQJ WKH SDUW QXPEHU DV VKRZQ EHORZ  51[[[[[ ↑ ↑↑ DEF Code D 6HWWLQJ 2XWSXW 9ROWDJH 9287  6WHSZLVH VHWWLQJ ZLWK D VWHS RI 9 LQ WKH UDQJH RI 9 WR 9 LV SRVVLEOH 'HVLJQDWLRQ RI $FWLYH 7\SH E $ DFWLYH ´/ W\SH µ % DFWLYH ´+µ W\SH F 'HVLJQDWLRQ RI 7DSLQJ 7\SH ([ 75 7/ UHIHU WR 7DSLQJ 6SHFLILFDWLRQV 75 W\SH LV WKH VWDQGDUG GLUHFWLRQ Contents ←3DUW 1XPEHU 2 R1122N PIN CONFIGURATION SOT-23-5 5 4 NC (mark side) VOUT GND CE VDD 1 2 3 PIN DESCRIPTION Pin No.      Symbol 9287 *1' 9''  RU &( Description 2XWSXW SLQ *URXQG 3LQ ,QSXW 3LQ &KLS (QDEOH 3LQ 1R &RQQHFWLRQ 1& ABSOLUTE MAXIMUM RATINGS Symbol 9,1 9&( 9287 ,287 3' 7RSW 7VWJ ,QSXW 9ROWDJH ,QSXW 9ROWDJH &( RU &( 3LQ 2XWSXW 9ROWDJH 2XWSXW &XUUHQW 3RZHU 'LVVLSDWLRQ 2SHUDWLQJ 7HPSHUDWXUH 5DQJH 6WRUDJH 7HPSHUDWXUH 5DQJH Item Rating   a 9,1  a 9,1     a   a  Unit 9 9 9 P$ P: °& °& 3 R1122N ELECTRICAL CHARACTERISTICS • R1122Nxx1A Symbol 9287 ,287 Item 2XWSXW 9ROWDJH 2XWSXW &XUUHQW 9,1 9,1 9,1 Conditions 6HW 9287 9 6HW 9287 9 6HW 92879 6HW 9287 9 P$ ≤ ,287 ≤ P$ :KHQ 9287 Min. 9287 ×    Typ. 7RSW Max. 9287 × °& Unit 9 P$ P9 ∆9287∆,287 /RDG 5HJXODWLRQ 9',) ,66 ,VWDQGE\ ∆9287∆9,1 55 9,1 ∆9287∆7 ,OLP 538 9&(+ 9&(/ HQ 'URSRXW 9ROWDJH 6XSSO\ &XUUHQW 6XSSO\ &XUUHQW 6WDQGE\ /LQH 5HJXODWLRQ 5LSSOH 5HMHFWLRQ ,QSXW 9ROWDJH 2XWSXW 9ROWDJH 7HPSHUDWXUH &RHIILFLHQW 6KRUW &XUUHQW /LPLW  3XOOXS 5HVLVWDQFH  ,QSXW 9ROWDJH ´+µ P$ ≤ ,287 ≤ P$ $*( 9,1 9,1 ,287 I 9,1 6HW 9287 9 9&( P$ N+] 5LSSOH 9SS 6HW 9287 9  ,287 9287 P$ 9    %: +] a N+] °& ≤ 7RSW ≤ °& 6HW 9287 9 UHIHU WR WKH (/(&7,&$/ &+$5$&7(5,67,&6 E\ 287387 92/7      ±    9,1      µ$ µ$ 9 G% 9 SSP °& P$ 0Ω 9 9 µ9UPV 6HW 9287 9 ≤ 9,1 ≤ 9 µ  ,QSXW 9ROWDJH ´/ 2XWSXW 1RLVH 4 R1122N • R1122Nxx1B Symbol 9287 ,287 Item 2XWSXW 9ROWDJH 2XWSXW &XUUHQW 9,1 9,1 9,1 Conditions 6HW 9287 9 6HW 9287 9 6HW 92879 6HW 9287 9 P$ ≤ ,287 ≤ P$ :KHQ 9287 Min. 9287 ×    Typ. Max. 9287 × 7RSW °& Unit 9 P$ P9 ∆9287∆,287 /RDG 5HJXODWLRQ 9',) ,66 ,VWDQGE\ ∆9287∆9,1 55 9,1 ∆9287∆7 ,OLP 53' 9&(+ 9&(/ HQ 'URSRXW 9ROWDJH 6XSSO\ &XUUHQW 6XSSO\ &XUUHQW 6WDQGE\ /LQH 5HJXODWLRQ 5LSSOH 5HMHFWLRQ ,QSXW 9ROWDJH 2XWSXW 9ROWDJH 7HPSHUDWXUH &RHIILFLHQW 6KRUW &XUUHQW /LPLW &( 3XOOGRZQ 5HVLVWDQFH &( ,QSXW 9ROWDJH ´+µ &( ,QSXW 9ROWDJH ´/ µ 2XWSXW 1RLVH P$ ≤ ,287 ≤ P$ $*( 9,1 9,1 9&( ,287 I 9,1 6HW 9287 9 6HW 9287 9 *1' P$ N+] 5LSSOH 9SS 6HW 9287 9  ,287 9287 P$ 9    %: +] a N+] °& ≤ 7RSW ≤ °& UHIHU WR WKH (/(&7,&$/ &+$5$&7(5,67,&6 E\ 287387 92/7      ±    9,1      µ$ µ$ 9 G% 9 SSP °& P$ 0Ω 9 9 µ9UPV 6HW 9287 9 ≤ 9,1 ≤ 9 5 R1122N • ELECTRICAL CHARACTERISTICS by OUTPUT VOLTAGE 7RSW Dropout Voltage Output Voltage VOUT (V)  ≤ 9287 ≤   ≤ 9287 ≤   ≤ 9287 ≤   ≤ 9287 ≤   ≤ 9287 ≤  ,287 P$ VDIF (V) Conditions Typ.      Max.      °& OPERATION R1122xx1A R1122xx1B 3 VDD _ + Vref CE 4 Current Limit 1 VOUT VDD 3 1 VOUT _ R1 Vref + R1 R2 2 GND CE 4 Current Limit R2 GND 2 ,Q WKHVH ,&V IOXFWXDWLRQ RI WKH RXWSXW YROWDJH 9287 LV GHWHFWHG E\ IHHGEDFN UHJLVWHUV 5 DQG 5 DQG WKH UHVXOW LV FRPSDUHG ZLWK D UHIHUHQFH YROWDJH E\ WKH HUURU DPSOLILHU VR WKDW D FRQVWDQW YROWDJH LV RXWSXW $ FXUUHQW OLPLW FLUFXLW IRU SURWHFWLRQ DW VKRUW PRGH DQG D FKLS HQDEOH FLUFXLW DUH LQFOXGHG 6 R1122N TEST CIRCUITS CE CE 4 VOUT R1122Nxx1B Series 4 VOUT R1122Nxx1B Series IN VDD OUT IOUT IN ISS VDD OUT 3 1 3 1 2 2.2µF GND 2 2.2µF GND Fig.1 Standard test Circuit CE Fig.2 Supply Current Test Circuit CE 4 VOUT R1122Nxx1B Series 4 VOUT R1122Nxx1B Series IN VDD OUT IOUT IN VDD OUT IOUT 3 1 3 1 P.G 2 GND 2 2.2µF GND I1 I2 Fig.3 Ripple Rejection, Line Transient Response Test Circuit Fig.4 Load Transient Response Test Circuit 7 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µ) RU PRUH EHWZHHQ 9'' DQG *1' SLQ DV FORVH DV SRVVLEOH 6HW H[WHUQDO FRPSRQHQWV HVSHFLDOO\ RXWSXW FDSDFLWRU DV FORVH DV SRVVLEOH WR WKH ,&V DQG PDNH ZLULQJ DV VKRUW DV SRVVLEOH TYPICAL APPLICATION CE R1122Nxx1A Series CE R1122Nxx1B Series IN + Cap. VDD VOUT + OUT IN + Cap. VDD VOUT + OUT GND Cap. GND Cap. ([WHUQDO &RPSRQHQWV 2XWSXW &DSDFLWRU &HUDPLF µ) 6HW RXWSXW YROWDJH LQ WKH UDQJH IURP  WR 9 &HUDPLF µ) 6HW RXWSXW YROWDJH LQ WKH UDQJH IURP  WR 9 ,QSXW &DSDFLWRU &HUDPLF µ) 8 R1122N TYPICAL CHARACTERISTICS 1) Output Voltage vs. Output Current R1122N151B 1.8 1.6 Output Voltage VOUT(V) R1122N201B 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) R1122N301B 3.5 Output Voltage VOUT(V) R1122N401B 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) R1122N501B 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 R1122N 2) Output Voltage vs. Input Voltage R1122N151B 1.600 Output Voltage VOUT(V) R1122N201B 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 R1122N301B 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 R1122N401B 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) R1122N501B 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) R1122N 3) Dropout Voltage vs. Output Current R1122N151B 0.600 Dropout Voltage VDIF(V) R1122N201B 0.600 0.500 0.400 0.300 0.200 0.100 0.000 Topt=-40°C Topt=25°C Topt=85°C 0.400 0.300 0.200 0.100 0.000 0 50 100 150 Dropout Voltage VDIF(V) 0.500 Topt=-40°C Topt=25°C Topt=85°C 0 50 100 150 Output Current IOUT(mA) Output Current IOUT(mA) R1122N301B 0.600 Dropout Voltage VDIF(V) R1122N401B 0.600 0.500 0.400 0.300 0.200 0.100 0.000 Topt=-40°C Topt=25°C Topt=85°C 0.400 0.300 0.200 0.100 0.000 0 50 100 150 Dropout Voltage VDIF(V) 0.500 Topt=-40°C Topt=25°C Topt=85°C 0 50 100 150 Output Current IOUT(mA) Output Current IOUT(mA) R1122N501B 0.600 0.500 0.400 0.300 0.200 0.100 0.000 0 50 100 150 Output Current IOUT(mA) Topt=-40°C Topt=25°C Topt=85°C Dropout Voltage VDIF(V) 11 R1122N 4) Output Voltage vs. Temperature R1122N151A/B 1.53 1.52 Output VoltageVOUT(V) R1122N201B 2.10 2.08 2.06 2.04 2.02 2.00 1.98 1.96 1.94 1.92 1.90 VIN=3.0V CIN=1µF COUT=2.2µF IOUT=30mA VIN=2.5V CIN=1µF COUT=2.2µF IOUT=30mA 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 R1122N301A/B 3.06 3.04 3.02 3.00 2.98 2.96 2.94 -50 -25 50 Temperature Topt (°C) 0 25 75 100 VIN=4.0V CIN=1µF COUT=2.2µF IOUT=30mA 4.08 4.06 Output VoltageVOUT(V) R1122N401A/B VIN=5.0V CIN=1µF COUT=2.2µF 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 R1122N501A/B 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 VIN=6.0V CIN=1µF COUT=2.2µF IOUT=30mA 12 Output VoltageVOUT(V) R1122N 5) Supply Current vs. Input Voltage R1122N151B 120 120 R1122N201B Supply Current ISS (µA) 100 80 60 40 20 0 Supply Current ISS (µA) 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 R1122N301B 120 120 R1122N401B Supply Current ISS (µA) 100 80 60 40 20 0 Supply Current ISS (µA) 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 R1122N501B 120 Supply Current ISS (µA) 100 80 60 40 20 0 1 2 3 4 5 Input Voltage VIN (V) 6 7 13 R1122N 6) Supply Current vs. Temperature R1122N151A/B 200 VIN=2.5V CIN=1µF COUT=2.2µF 200 R1122N201A/B VIN=3.0V CIN=1µF COUT=2.2µF Supply Current ISS (µA) 150 Supply Current ISS (µA) -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 R1122N301A/B 200 VIN=4.0V CIN=1µF COUT=2.2µF 200 R1122N401A/B VIN=5.0V CIN=1µF COUT=2.2µF Supply Current ISS (µA) 150 Supply Current ISS (µA) 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 R1122N501A/B 200 VIN=6.0V CIN=1µF COUT=2.2µF Supply Current ISS (µA) 150 100 50 0 -50 -25 50 75 0 25 Temperature Topt (°C) 100 14 R1122N 7) Ripple Rejection vs. Frequency R1122N151A/B 90.00 Ripple Rejection RR (dB) R1122N201A/B 90.00 Ripple Rejection RR (dB) VIN=2.5V+0.5Vp-p COUT=2.2µF IOUT=30mA VIN=3.0V+0.5Vp-p COUT=2.2µF 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 R1122N301A/B 90.00 Ripple Rejection RR (dB) R1122N401A/B 90.00 Ripple Rejection RR (dB) VIN=4.0V+0.5Vp-p COUT=2.2µF IOUT=30mA VIN=5.0V+0.5Vp-p COUT=2.2µF 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 R1122N501A/B 90.00 Ripple Rejection RR (dB) VIN=6.0V+0.5Vp-p COUT=2.2µF 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 R1122N 8) Ripple Rejection vs. Input Voltage (DC bias) R1122N301B 90.00 COUT=Ceramic 2.2µF IOUT=1mA 90.00 R1122N301B COUT=Ceramic 2.2µF 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 R1122N301B 90.00 COUT=Ceramic 2.2µF 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 R1122N151B Tek Run : 2.50MS/s Average 7RSW °& VIN 1→ 2→ VOUT 9,1 9↔9 ,287 P$ &,1 QRQH &287 µ) Ch1 Ch1 1.00V Ch2 20.0mV M20.0µs WUWI µV 16 R1122N R1122N201B Tek Run : 2.50MS/s Average 7RSW °& VIN 1→ 2→ VOUT 9,1 9↔9 ,287 P$ &,1 QRQH &287 µ) Ch1 1.00V Ch2 20.0mV M20.0µs WUWI µV 7RSW °& R1122N301B Tek Run : 2.50MS/s Average VIN 1→ 2→ VOUT 9,1 9↔9 ,287 P$ &,1 QRQH &287 µ) Ch1 1.00V Ch2 20.0mV M20.0µs WUWI µV 7RSW °& R1122N401B Tek Run : 2.50MS/s Average VIN 1→ 2→ VOUT 9,1 9↔9 ,287 P$ &,1 QRQH &287 µ) Ch1 1.00V Ch2 20.0mV M20.0µs WUWI µV 17 R1122N R1122N501B Tek Run : 2.50MS/s Average 7RSW °& VIN 1→ 2→ VOUT 9,1 9↔9 ,287 P$ &,1 QRQH &287 µ) Ch1 1.00V Ch2 20.0mV M20.0µs WUWI µV 10) Load Transient Response R1122N151B Tek Run : 2.50MS/s Average 7RSW °& 1→ IOUT VOUT 2→ ,287 P$↔P$ 9,1 9 &,1 µ) &287 µ) WUWI µV 7RSW °& Ch1 500mV Ch2 50.0mV M20.0µs R1122N201B Tek Run : 2.50MS/s Average 1→ IOUT VOUT 2→ ,287 P$↔P$ 9,1 9 &,1 µ) &287 µ) Ch1 500mV Ch2 50.0mV M20.0µs WUWI µV 18 R1122N R1122N301B Tek Run : 2.50MS/s Average 7RSW °& 1→ IOUT VOUT 2→ ,287 P$↔P$ 9,1 9 &,1 µ) &287 µ) Ch1 500mV Ch2 50.0mV M20.0µs WUWI µV 7RSW °& R1122N401B Tek Run : 2.50MS/s Average 1→ IOUT VOUT 2→ ,287 P$↔P$ 9,1 9 &,1 µ) &287 µ) Ch1 500mV Ch2 50.0mV M20.0µs WUWI µV 7RSW °& R1122N501B Tek Run : 2.50MS/s Average 1→ IOUT ,287 P$↔P$ VOUT 2→ 9,1 9 &,1 µ) &287 µ) WUWI µV Ch1 500mV Ch2 50.0mV M20.0µs 19 R1122N TECHNICAL NOTES 4 CE VOUT1 1 Ceramic Cap. Spectrum Analyzer R1122Nxx1B 3 VDD 2 GND ESR IOUT S.A VIN Ceramic Cap. Measuring Circuit for white noise; R1122Nxx1B 7KH UHODWLRQVKLS EHWZHHQ ,287 2XWSXW &XUUHQW DQG (65 RI WKH RXWSXW FDSDFLWRU LV VKRZQ EHORZ 7KH FRQGLWLRQV ZKHQ WKH ZKLWH QRLVH OHYHO LV XQGHU µ9 $YJ DUH LQGLFDWHG WKH KDWFKHG DUHD LQ WKH JUDSK QRWH :KHQ WKH DGGLWLRQDO FHUDPLF FDSDFLWRUV DUH FRQQHFWHG WR WKH RXWSXW SLQ ZLWK RXWSXW FDSDFLWRU IRU SKDVH FRPSHQ VDWLRQ WKH RSHUDWLRQ PLJKW EH XQVWDEOH %HFDXVH RI WKLV WHVW WKHVH ,&V ZLWK DV WKH VDPH H[WHUQDO FRPSRQHQWV DV WKH RQHV WR EH XVHG RQ WKH 3&% PHDVXULQJ FRQGLWLRQV!    9,1 9287 9 )UHTXHQF\ EDQG +] WR 0+] 7HPSHUDWXUH °& 20