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/2:#12,6(#483P$#/'2 5(*8/$725
544451#6(5,(6
$33/,&$7,21#0$18$/
NO. EA-059-0006
LOW NOISE 150mA LDO REGULATOR
544451#6(5,(6
OUTLINE
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
FEATURES
* 8OWUD0/RZ#6XSSO\#&XUUHQW 11111111111111111111111111111111111111111111111111 7<3 1#433$ * 6WDQGE\#0RGH#&XUUHQW11111111111111111111111111111111111111111111111111111111 7<3 1#314$ * /RZ#'URSRXW#9ROWDJH 1111111111111111111111111111111111111111111111111111111111 7<3 1#314<9#+,287 433P$#6139#2XWSXW#W\SH, * +LJK#5LSSOH#5HMHFWLRQ 111111111111111111111111111111111111111111111111111111111 7<3 1#;3G%+I 4N+], * /RZ#7HPSHUDWXUH0'ULIW#&RHIILFLHQW#RI#2XWSXW#9ROWDJH#7<3 1#"433SSP2& * ([FHOOHQW#/LQH#5HJXODWLRQ111111111111111111111111111111111111111111111111111 7<3 1#3138(29 * +LJK#2XWSXW#9ROWDJH#$FFXUDF\ 1111111111111111111111111111111111111111111 "513( * ([FHOOHQW#'\QDPLF#5HVSRQVH * 6PDOO#3DFNDJH# 111111111111111111111111111111111111111111111111111111111111111111111 62705608#+0LQL0PROG, * 2XWSXW#9ROWDJH111111111111111111111111111111111111111111111111111111111111111111111 6WHSZLVH#VHWWLQJ#ZLWK#D#VWHS#RI#3149#LQ#WKH#UDQJH#RI#4189#WR 8139#LV#SRVVLEOH * %XLOW0LQ#FKLS#HQDEOH#FLUFXLW#+5#W\SHV>#$=#DFWLYH#ORZ/#%=#DFWLYH#KLJK, * 3LQ0RXW1111111111111111111111111111111111111111111111111111111111111111111111111111111111 6LPLODU#WR#WKH#/35<;32/35<;8 * %XLOW0LQ#IROG0EDFN#SURWHFWLRQ#FLUFXLW111111111111111111111111111111111111 7<3 1#63P$#+&XUUHQW#DW#VKRUW#PRGH, * &HUDPLF#FDSDFLWRUV#UHFRPPHQGHG#WR#EH#XVHG#ZLWK#WKLV#,&
APPLICATIONS
* 3RZHU#VRXUFH#IRU#FHOOXODU#SKRQHV#VXFK#DV#*60/#&'0$#DQG#YDULRXV#NLQG#RI#3&6V1 * 3RZHU#VRXUFH#IRU#HOHFWULFDO#DSSOLDQFHV#VXFK#DV#FDPHUDV/#9&5V#DQG#FDPFRUGHUV1 * 3RZHU#VRXUFH#IRU#EDWWHU\0SRZHUHG#HTXLSPHQW1
1
R1112N
BLOCK DIAGRAM
R1112NXX1A R1112NXX1B
1 VDD
5 VOUT
1 VDD
5 VOUT
Vref CE 3 Current Limit GND 2 CE 3
Vref Current Limit GND 2
SELECTION GUIDE
7KH#RXWSXW#YROWDJH/#WKH#DFWLYH#W\SH/#WKH#SDFNLQJ#W\SH/#DQG#WKH#WDSLQJ#W\SH#IRU#WKH#,&V#FDQ#EH#VHOHFWHG#DW#WKH#XVHU*V UHTXHVW1#7KH#VHOHFWLRQ#FDQ#EH#PDGH#E\#GHVLJQDWLQJ#WKH#SDUW#QXPEHU#DV#VKRZQ#EHORZ= 54445;;;4;0;; DE Code D E 'HVLJQDWLRQ#RI#3DFNDJH#7\SH= 1=#62705608#+0LQL0PROG, 6HWWLQJ#2XWSXW#9ROWDJH#+9287,= 6WHSZLVH#VHWWLQJ#ZLWK#D#VWHS#RI#3149#LQ#WKH#UDQJH#RI#4189#WR#8139#LV#SRVVLEOH1 'HVLJQDWLRQ#RI#$FWLYH#7\SH= F $=#DFWLYH#ORZ#W\SH %=#DFWLYH#KLJK#W\SH G 'HVLJQDWLRQ#RI#7DSLQJ#7\SH= ([1#75/#7/#+UHIHU#WR#7DSLQJ#6SHFLILFDWLRQV>#75#W\SH#LV#WKH#VWDQGDUG#GLUHFWLRQ1, FG Contents 3DUW#1XPEHU
2
R1112N
PIN CONFIGURATION
SOT-23-5
5 4
VOUT (mark side) VDD GND
NC
CE
1
2
3
PIN DESCRIPTION
Pin No. 4 5 6 7 8 9'' *1' &( #RU#&( 1& 9287 Symbol Description ,QSXW#3LQ *URXQG#3LQ &KLS#(QDEOH#3LQ 1R#&RQQHFWLRQ 2XWSXW#SLQ
3
R1112N
ABSOLUTE MAXIMUM RATINGS
Symbol 9,1 9&( 9287 ,287 3' 7RSW 7VWJ ,QSXW#9ROWDJH ,QSXW#9ROWDJH+ &( #RU#&(#3LQ, 2XWSXW#9ROWDJH 2XWSXW#&XUUHQW 3RZHU#'LVVLSDWLRQ 2SHUDWLQJ#7HPSHUDWXUH#5DQJH 6WRUDJH#7HPSHUDWXUH#5DQJH Item Rating :13 0316#a#9,1.316 0316#a#9,1.316 533 583 073#a#;8 088#a#458 Unit 9 9 9 P$ P: & &
ELECTRICAL CHARACTERISTICS
* R1112NXX1A Symbol 9287 ,287 Item 2XWSXW#9ROWDJH 2XWSXW#&XUUHQW Conditions 9,1# #6HW#9287.49 4P$##,287##63P$ 9,1#0#9287# #4139 9,1# #6HW#9287.49 4P$##,287##;3P$ 92/7$*( 9,1# #6HW#9287.49 9,1# #9&(# #6HW#9287.49 6HW#9287.3189##9,1##;9 ,287# #63P$ I# #4N+]/#5LSSOH#3189S0S 9,1# #6HW#9287.49 513 ,287# #63P$ 073&##7RSW##;8& 9287# #39 518 418 3 %: 43+]#WR#433N+] 63 "433 63 8 43 9,1 3158 433 314 3138 ;3 913 4:3 413 3153 $ $ (29 G% 9 SSP 2& P$ 0 9 9 9UPV MIN. 9287 x31<; 483 45 73 TYP. 9287 x4135 7RSW 58& MAX. Unit 9 P$ P9
92872,287 /RDG#5HJXODWLRQ 9',) ,66 ,VWDQGE\ 928729,1 55 9,1 928727 ,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 &( #3XOO0XS#5HVLVWDQFH &( #,QSXW#9ROWDJH#+ &( #,QSXW#9ROWDJH#/ 2XWSXW#1RLVH
5HIHU#WR#WKH#(/(&75,&$/#&+$5$&7(5,67,&6#E\#287387
4
R1112N
* R1112NXX1B Symbol 9287 ,287 Item 2XWSXW#9ROWDJH 2XWSXW#&XUUHQW Conditions 9,1# #6HW#9287.49 4P$##,287##63P$ 9,1#0#9287# #4139 9,1# #6HW#9287.49 4P$##,287##;3P$ 92/7$*( 9,1# #6HW#9287.49 9,1# #6HW#9287.49 9&( *1' 6HW#9287.3189##9,1##;9 ,287# #63P$ I# #4N+]/#5LSSOH#3189S0S 9,1# #6HW#9287.49 513 ,287# #63P$ 073&##7RS#W##;8& 9287# #39 518 418 3 %: 43+]#WR#433N+] 63 "433 63 8 43 9,1 3158 433 314 3138 ;3 913 4:3 413 3153 MIN. 9287 x31<; 483 45 73 TYP. 9287 x4135
7RSW 58& MAX. Unit 9 P$ P9
92872,287 /RDG#5HJXODWLRQ 9',) ,66 ,VWDQGE\ 928729,1 55 9,1 928727 ,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 &(#3XOO0GRZQ#5HVLVWDQFH &(#,QSXW#9ROWDJH#+ &(#,QSXW#9ROWDJH#/ 2XWSXW#1RLVH
5HIHU#WR#WKH#(/(&75,&$/#&+$5$&7(5,67,&6#E\#287387 $ $ (29 G% 9 SSP 2& P$ 0 9 9 9UPV
* ELECTRICAL CHARACTERISTICS by OUTPUT VOLTAGE 7RSW# #58& Dropout Voltage Output Voltage VOUT (V) Condition 418##9287##419 41:##9287##41; 41<##9287##516 517##9287##51: 51;##9287##813 ,287# #433P$ VDIF (V) TYP. 3165 315; 3158 3153 314< MAX. 3188 317: 3168 315< 3159
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
R1
R2
GND
2
2
,Q#WKHVH#,&V/#IOXFWXDWLRQ#RI#2XWSXW#9ROWDJH/#9287#LV#GHWHFWHG#E\#)HHG0EDFN#5HJLVWHUV#54/#55/#DQG#WKH#UHVXOW#LV#FRP0 SDUHG#ZLWK#D#UHIHUHQFH#YROWDJH#E\#(UURU#$PSOLILHU/#VR#WKDW#D#FRQVWDQW#YROWDJH#LV#RXWSXW1#$#FXUUHQW#OLPLW#FLUFXLW#IRU#SUR0 WHFWLRQ#DW#VKRUW#PRGH#DQG#D#FKLS#HQDEOH#FLUFXLW#DUH#LQFOXGHG1
TECHNICAL NOTES
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
6
R1112N
TEST CIRCUITS
CE 3 3 CE
IN
VDD 1
VOUT R1112Nxx1B 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 VOUT Series GND Cap.
OUT IN
VDD
R1112Nxx1B VOUT Series GND Cap.
OUT
Cap.
Cap.
+([WHUQDO#&RPSRQHQWV, 2XWSXW#&DSDFLWRU> &HUDPLF#515)+6HW#2XWSXW#9ROWDJH#LQ#WKH#UDQJH#IURP#518#WR#8139, &HUDPLF#71:)#+6HW#2XWSXW#9ROWDJH#LQ#WKH#UDQJH#IURP#418#WR#5189, ,QSXW#&DSDFLWRU> &HUDPLF#515)
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 5 3 2.5
VIN=3.3V
R11x2N401B
Output Voltage VOUT(V)
Output Voltage VOUT(V)
4
VIN=4.3V
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 0 25 50 Temperature Topt (C) 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 0 25 50 75 Temperature Topt (C)
150
100
100
50
50
0 -50
100
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)
-25 0 25 50 75 Temperature Topt (C)
150
100
100
50
50
0 -50
100
0 -50
-25
0 25 50 75 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
0 25 50 75 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 [T ]
7RSW 58&
VIN
1
2
VOUT
9,1 51896189 ,287 63P$ &,1 QRQH &287 515) WU2WI 8V
Ch1 Ch1
1.00V
Ch2 20.0mV
M20.0s
Ch1
3.02V 24 Jan 2000 08:50:58
16
R1112N
R11X2N201B
Tek Run : 2.50MS/s Average [T ]
7RSW 58&
VIN
1
2
VOUT
9,1 61397139 ,287 63P$ &,1 QRQH &287 515) WU2WI 8V 7RSW 58&
Ch1
1.00V
Ch2
20.0mV
M20.0s
Ch1
3.52V 24 Jan 2000 08:42:51
R11X2N301B
Tek Run : 2.50MS/s Average [T ]
VIN
1
2
VOUT
9,1 71398139 ,287 63P$ &,1 QRQH &287 515) WU2WI 8V 7RSW 58&
Ch1
1.00V
Ch2 20.0mV
M20.0s
Ch1
4.48V 24 Jan 2000 08:35:01
R11X2N401B
Tek Run : 2.50MS/s Average [T ]
VIN
1
2
VOUT
9,1 81399139 ,287 63P$ &,1 QRQH &287 515)
Ch1
1.00V
Ch2 20.0mV
M20.0s
Ch1
5.52V 24 Jan 2000 08:26:04
WU2WI 8V
17
R1112N
R11X2N501B
Tek Run : 2.50MS/s Average [T ]
7RSW 58&
VIN
1
2
VOUT
9,1 9139:139 ,287 63P$ &,1 QRQH &287 515) WU2WI 8V
Ch1
1.00V
Ch2
20.0mV
M20.0s
Ch1
6.50V 24 Jan 2000 08:19:23
10) Load Transient Response R11X2N151B
Tek Run : 2.50MS/s Average [T ]
7RSW 58&
1
IOUT
VOUT 2
,287 83P$433P$ 9,1 5189 &,1 515) &287 515) WU2WI 8V 7RSW 58&
Ch1 500mV
Ch2 50.0mV
M20.0s
Ch1
-10mV 24 Jan 2000 15:02:01
R11X2N201B
Tek Run : 2.50MS/s Average [T ]
1
IOUT
VOUT 2
,287 83P$433P$ 9,1 6139 &,1 515) &287 515) WU2WI 8V
Ch1 500mV
Ch2 50.0mV
M20.0s
Ch1
-10mV 24 Jan 2000 14:55:44
18
R1112N
R11X2N301B
Tek Run : 2.50MS/s Average [T ]
7RSW 58&
1
IOUT
VOUT 2
,287 83P$433P$ 9,1 7139 &,1 515) &287 515) WU2WI 8V 7RSW 58&
Ch1 500mV
Ch2 50.0mV
M20.0s
Ch1
-10mV 24 Jan 2000 14:47:54
R11X2N401B
Tek Run : 2.50MS/s Average [T ]
1
IOUT
VOUT 2
,287 83P$433P$ 9,1 8139 &,1 515) &287 515) WU2WI 8V 7RSW 58&
Ch1 500mV
Ch2
50.0mV
M20.0s
Ch1
-10mV 24 Jan 2000 14:41:23
R11X2N501B
Tek Run : 2.50MS/s Average [T ]
1
IOUT
VOUT 2
,287 83P$433P$ 9,1 9139 &,1 515) &287 515)
Ch1 500mV
Ch2 50.0mV
M20.0s
Ch1
-20mV 24 Jan 2000 14:32:55
WU2WI 8V
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#YDULHG1#)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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
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
* 0DNH#9''#DQG#*1'#OLQH#VXIILFLHQW1#:KHQ#WKH#LPSHGDQFH#RI#WKHVH#LV#KLJK/#WKH#QRLVH#PLJKW#EH#SLFNHG#XS#RU#QRW#ZRUN FRUUHFWO\1 * &RQQHFW#WKH#FDSDFLWRU#ZLWK#D#FDSDFLWDQFH#RI#515)#RU#PRUH#EHWZHHQ#9''#DQG#*1'#DV#FORVH#DV#SRVVLEOH1 * 6HW#H[WHUQDO#FRPSRQHQWV/#HVSHFLDOO\#2XWSXW#&DSDFLWRU/#DV#FORVH#DV#SRVVLEOH#WR#WKH#,&V#DQG#PDNH#ZLULQJ#VKRUWHVW1
21

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