LOW NOISE 150mA LDO REGULATOR NO. EA-058-0204 OUTLINE !" # $%&'$" # #$ (%"( (##) ( * ! (** ( (%('#*%% (' %( #( !#*'"" # ( #(* ( ( ( (( #( ( (( #( * & (% ! $ *#" ##$*( '' ( (+ #'( # *!*&" $ ( # ,*!- .('/# ,%($' ((*!( # FEATURES * 01" ##$ ( $#- 2 * ($ $# 2 * 1"3# 4 $# 4.!5 '2/ * 6##) ( $#7 .*5,68/ * 1"'# 3*** (* # 4 $# ##' * & (1( ( $# 94 * 62 $ # 4 9 * ': , - .('/ * # 4 #"("#* 4((* 4 4# * ; (#( .$#<2= >1?%;= >6?/ * :( '@%@ APPLICATIONS * :" * #( A%32( ,(*: * :" *' ##( '%4( ' * :" *$#"+ #'( 1 R1121N BLOCK DIAGRAM R1121Nxx1A R1121Nxx1B 3 1 3 VOUT VDD VDD Vref VOUT Vref Current Limit CE 1 GND 4 2 CE Current Limit 4 GND 2 SELECTION GUIDE # % $#% # ,( $#% ( #( $# * ! ( B+ ( ('$((#( '"("= &&&&&& : ' Code Contents ( # 4.4/= #"("#* 4((* 4 4# 3((*2 $#= 2= >1?$# ;= >6?$# 2 3((*#($#= &%1.*#(# * (<$#( (/ R1121N PIN CONFIGURATION SOT-23-5 5 4 NC CE (mark side) VOUT GND VDD 1 2 3 PIN DESCRIPTION Pin No. Symbol Description 4 # #( A3 A (:( - 4 !(# :( C #(:( (( ( ABSOLUTE MAXIMUM RATINGS Symbol Item Rating Unit D 4 4 !(# 4 4 !(# 4.:(/ -E4F - 4 4 # 4 -E4F - 4 ! # ( '2 : :"3#( 'G C EH E # #('# ( '# ( 3 R1121N ELECTRICAL CHARACTERISTICS * R1121Nxx1A #5 Symbol Conditions Min. Typ. Max. 454F4 4 4 '2!- '2 x DH x Unit 4 4 # 4 ! # ( 4! 1 ( 4 3# 4 ! ##$ ( 454F4 - 7 2 ##$ (.($/ 45454F4 2 94 !($ 44 1( ( ##) ( 4 !(# 4 *1!21622!!$0:0 412A 454F4 '2!H '2 4F 44H4 !5- '2 *5,68%## 4## 7 454F4 '# ** ( C #H !' (1' 45 4 CE : #( 4 CE !(# 4>6? 4 CE !(# 4>1? # '4 412A !5- '2 ( C *1!21622!!$0:0 # 4 4 4 Item ;G5 68E ,68 ; H ##' 4 '2 4 4 4 - 4' R1121N * R1121Nxx1B #5 Symbol Item 4 # 4 ! # ( 4! 1 ( 4 3# 4 ! ##$ ( !($ ##$ (.($/ 44 1( ( ##) ( 4 !(# 4 4 # 4 '# ** ( Conditions Min. Typ. Max. 454F4 4 4 '2!- '2 x DH x Unit 4 *1!21622!!$0:0 412A 454F4 '2!H '2 C '4 *1!21622!!$0:0 412A 454F4 454F4 45A3 4F 44H4 !5- '2 *5,68%## 4## - 7 2 2 94 7 454F4 !5- '2 H !' (1' 45 4 : "(( 4 !(# 4>6? 4 !(# 4>1? ( # 4 ##' C #H ;G5 68E ,68 ; '2 4 4 4 - 4' 5 R1121N * ELECTRICAL CHARACTERISTICS by OUTPUT VOLTAGE #5 Output Current Output Voltage VOUT (V) IOUT (mA) Conditions 47 Min. 445 4 H4 #5 Dropout Voltage Output Voltage VOUT (V) VDIF (V) Conditions Min. Typ. Max. I C - 7 47 C - H4-- - -C4 7 I I C 7 - H4D 4C !5 '2 =G( # 4+ ( 4%4! + '( 4 OPERATION R1121Nxx1A 3 R1121Nxx1B 1 VDD 3 VOUT 1 VDD VOUT R1 R1 Vref CE 4 Vref Current Limit R2 GND 2 CE Current Limit 4 R2 GND 2 !(!%* (* # %4 $* ,%(%( '#"*( $'#*% (( # 2 (' *# ('( #( %( 6 R1121N TEST CIRCUITS CE CE 4 4 IN VDD 3 VOUT R1121Nxx1B Series 1 VDD 3 IN OUT VOUT R1121Nxx1B Series OUT 1 ISS IOUT 2.2F 2 2.2F 2 GND 0.1F GND 0.1F Supply current Test Circuit Standard test Circuit Fig.1 Standard test Circuit Fig.2 Supply Current Test Circuit CE CE 4 4 IN VDD 3 VOUT R1121Nxx1B Series 1 OUT IN IOUT P.G VDD 3 VOUT R1121Nxx1B Series OUT 1 2 2 GND 1F Ripple Rejection, Line Transient Response Test Circuit Fig.3 Ripple Rejection, Line Transient Response GND I1 I2 Load Transient Response Test Circuit Fig.4 Load Transient Response Test Circuit Test Circuit 7 R1121N TYPICAL CHARACTERISTICS 1) Output Voltage vs. Output Current R1121N181B R1121N301B Topt = 25C Topt = 25C 3.5 2.0 5.0V 3.0 3.8V 1.6 Output Voltage VOUT (V) Output Voltage VOUT (V) 1.8 2.8V 1.4 1.2 2.3V 1.0 0.8 0.6 VIN = 2.1V 0.4 4.0V 2.5 2.0 3.5V 1.5 VIN = 3.3V 1.0 0.5 0.2 0.0 0.0 0 100 200 300 400 Output Current IOUT (mA) 500 0 100 R1121N401B 200 300 400 Output Current IOUT (mA) 500 R1121N501B Topt = 25C Topt = 25C 5.0 6.0 5.0 4.0 Output Voltage VOUT (V) Output Voltage VOUT (V) 4.5 6.0V 3.5 5.0V 3.0 2.5 4.5V 2.0 VIN = 4.3V 1.5 1.0 7.0V 4.0 6.0V 3.0 5.5V 2.0 VIN = 5.3V 1.0 0.5 0.0 0.0 0 2) 100 200 300 400 Output Current IOUT (mA) 0 500 100 200 300 400 Output Current IOUT (mA) Output Voltage vs. Input Voltage R1121N181B R1121N301B Topt = 25C Topt = 25C 3.1 2.0 IOUT=1mA 3.0 IOUT = 1mA Output Voltage VOUT (V) Output Voltage VOUT (V) 1.9 1.8 1.7 1.6 1.5 1.4 30mA 2.9 2.8 2.7 30mA 2.6 1.3 50mA 1.2 1.0 8 500 2.0 3.0 4.0 5.0 6.0 Input Voltage VIN (V) 7.0 8.0 2.5 2.0 50mA 3.0 4.0 5.0 6.0 Input Voltage VIN (V) 7.0 8.0 R1121N R1121N401B R1121N501B Topt = 25C Topt = 25C 4.5 5.5 5.0 Output Voltage VOUT (V) OUtput Voltage VOUT (V) IOUT = 1mA 4.0 3.5 30mA 3.0 3.5 30mA 50mA 4.0 5.0 6.0 Input Voltage VIN (V) 7.0 2.5 2.0 8.0 3.0 4.0 5.0 6.0 Input Voltage VIN (V) 7.0 8.0 Dropout Voltage vs. Output Current R1121N181B R1121N301B 0.40 1.20 Dropout Voltage VDIF (V) Topt = 85C 0.80 0.60 25C 0.40 -40C Dropout Voltage VDIF (V) 0.35 1.00 0.20 Topt = 85C 0.30 25C 0.25 0.20 -40C 0.15 0.10 0.05 0.00 0.00 0 50 100 Output Current IOUT (mA) 0 150 R1121N401B 0.40 0.35 0.35 0.30 Topt = 85C 0.25 25C 0.20 0.15 -40C 0.10 50 100 Output Current IOUT (mA) 150 R1121N501B 0.40 0.05 Dropout Voltage VDIF (V) Dropout Voltage VDIF (V) 3) 3.0 4.0 3.0 50mA 2.5 2.0 IOUT = 1mA 4.5 0.30 Topt = 85C 0.25 25C 0.20 0.15 -40C 0.10 0.05 0.00 0.00 0 50 100 Output Current IOUT (mA) 150 0 50 100 Output Current IOUT (mA) 150 9 R1121N 4) Output Voltage vs. Temperature R1121N181B 1.90 1.88 3.08 1.86 3.06 1.84 1.82 1.80 1.78 1.76 1.74 3.04 3.02 3.00 2.98 2.96 2.94 2.92 1.72 1.70 -50 VIN = 4.0V IOUT = 30mA 3.10 Output Voltage VOUT (V) Output Voltage VOUT (V) R1121N301B VIN = 2.8V IOUT = 30mA -25 0 25 50 Temperature Topt (C) 75 2.90 -50 100 -25 R1121N401B 0 25 50 Temperature Topt (C) 5.10 4.08 5.08 4.06 5.06 Output Voltage VOUT (V) Output Voltage VOUT (V) 4.10 4.04 4.02 4.00 3.98 3.96 3.94 3.92 5) VIN = 6.0V IOUT = 30mA 5.04 5.02 5.00 4.98 4.96 4.94 4.92 -25 0 25 50 Temperature Topt (C) 75 4.90 -50 100 -25 0 25 50 Tempareture Topt (C) 75 100 Supply Current vs. Input Voltage R1121N181B R1121N301B Topt = 25C 60 60 50 50 Supply Current ISS (A) Supply Current ISS (A) Topt = 25C 40 30 20 0 1.0 40 30 20 10 10 10 100 R1121N501B VIN = 5.0V IOUT = 30mA 3.90 -50 75 2.0 3.0 4.0 5.0 6.0 Input Voltage VIN (V) 7.0 8.0 0 1.0 2.0 3.0 4.0 5.0 6.0 Input Voltage VIN (V) 7.0 8.0 R1121N R1121N401B R1121N501B Topt = 25C 60 60 50 50 Supply Current ISS (A) Supply Current ISS (A) Topt = 25C 40 30 20 10 0 1.0 30 20 10 2.0 3.0 4.0 5.0 6.0 Input Voltage VIN (V) 7.0 0 1.0 8.0 2.0 3.0 4.0 5.0 6.0 Input Voltage VIN (V) 7.0 8.0 Supply Current vs. Temperature R1121N181B R1121N301B VIN = 4.0V 50 50 45 45 Supply Current ISS (A) Supply Current ISS (A) VIN = 2.8V 40 35 30 20 -50 40 35 30 25 25 0 50 Temperature Topt (C) 20 -50 100 R1121N401B 100 VIN = 6.0V 50 45 45 Supply Current ISS (A) 50 40 35 30 25 20 -50 0 50 Temperature Topt (C) R1121N501B VIN = 5.0V Supply Current ISS (A) 6) 40 40 35 30 25 0 50 Temperature Topt (C) 100 20 -50 0 50 Temperature Topt (C) 100 11 R1121N 7) Dropout Voltage vs. Set Output Voltage R1121Nxx1B Topt = 25C 1.0 Dropout Voltage VDIF (V) 0.9 IOUT = 150mA IOUT = 100mA IOUT = 50mA IOUT = 30mA IOUT = 10mA 0.8 0.7 0.6 0.5 0.4 0.3 0.2 0.1 0.0 1.0 8) 2.0 3.0 4.0 Set Output Voltage Vreg (V) 5.0 Ripple Rejection vs. Frequency R1121N181B R1121N181B VIN = 2.8VDC + 0.5Vp-p COUT = tantal 2.2F VIN = 2.8VDC + 0.5Vp-p COUT = tantal 1.0F 80 80 70 Ripple Rejection RR (dB) Ripple Rejection RR (dB) 70 60 50 40 IOUT = 1mA 30 IOUT = 30mA 20 IOUT = 50mA 10 60 50 40 IOUT= 1mA 30 IOUT = 30mA 20 IOUT = 50mA 10 0 0 0.1 1 10 Frequency f (kHz) 0.1 100 1 R1121N301B VIN = 4.0VDC + 0.5Vp-p COUT = tantal 2.2F 80 80 70 Ripple Rejection RR (dB) 70 Ripple Rejection RR (dB) 100 R1121N301B VIN = 4.0VDC + 0.5Vp-p COUT = tantal 1.0F 60 50 40 IOUT = 1mA 30 IOUT = 30mA 20 IOUT = 50mA 10 60 50 40 IOUT = 1mA 30 IOUT = 30mA 20 IOUT = 50mA 10 0 0 0.1 12 10 Frequency f (kHz) 1 10 Frequency f (kHz) 100 0.1 1 10 Frequency f (kHz) 100 R1121N R1121N401B R1121N401B VIN = 5.0VDC + 0.5Vp-p COUT = tantal 2.2F 80 80 70 70 Ripple Rejection RR (dB) Ripple Rejection RR (dB) VIN = 5.0VDC + 0.5Vp-p COUT = tantal 1.0F 60 50 IOUT= 1mA 40 30 IOUT = 30mA 20 IOUT = 50mA 10 50 40 IOUT = 1mA 30 IOUT = 30mA 20 IOUT = 50mA 10 0 0 0.1 1 10 Frequency f (kHz) 0.1 100 1 10 100 Frequency f (kHz) Ripple Rejection vs. Input Voltage (DC bias) R1121N301B R1121N301B IOUT = 10mA COUT = 2.2F IOUT = 1mA COUT = 2.2F 80 80 70 Ripple Rejection RR (dB) Ripple Rejection RR (dB) 70 60 50 40 f = 400Hz 30 20 f = 1kHz 10 f = 10kHz 60 50 40 f = 400Hz 30 20 f = 1kHz 10 f = 10kHz 0 0 3.1 3.2 3.3 3.4 Input Voltage VIN (V) 3.5 3.1 3.2 3.3 3.4 Input Voltage VIN (V) 3.5 R1121N301B IOUT = 50mA COUT = 2.2F 80 f = 400Hz 70 Ripple Rejection RR (dB) 9) 60 f = 1kHz 60 50 f = 10kHz 40 30 20 10 0 3.1 3.2 3.3 3.4 3.5 Input Voltage VIN (V) 13 R1121N 10) Line Transient Response R1121N301B IOUT=30mA tr=tf=5 s COUT=Tantalum 1.0F OUtput Voltage VOUT (V) 3.3 5 Input Voltage 4 3.2 3.1 3 Output Voltage 3.0 2 2.9 1 Input Voltage VIN (V) 6 3.4 0 2.8 0 20 40 60 TIme t (s) 80 100 120 R1121N301B IOUT=30mA tr=tf=5 s COUT=Tantalum 2.2F Output Voltage VOUT (V) 3.3 5 Input Voltage 4 3.2 3.1 3 Output Voltage 3.0 2 2.9 1 Input Voltage VIN (V) 6 3.4 0 2.8 0 20 40 60 Time t (s) 80 100 120 R1121N301B IOUT=30mA tr=tf=5 s COUT=Tantalum 6.8F Output Voltage VOUT (V) 3.3 5 Input Voltage 4 3.2 3 3.1 Output Voltage 3.0 2 2.9 1 0 2.8 0 14 20 40 60 Time t (s) 80 100 120 Input Voltage VIN (V) 6 3.4 R1121N 11) Load Transient Response R1121N301B VIN=4V CIN=Tantalum 1F COUT=Tantalum 1.0F Output Voltage VOUT (V) 3.3 100 Output Current 50 3.2 0 3.1 Output Voltage 3.0 -50 2.9 -100 Output Current IOUT (mA) 150 3.4 -150 2.8 0 2 4 6 8 10 12 Time t (s) 14 16 18 20 R1121N301B VIN=4V CIN=Tantalum 1F COUT=Tantalum 2.2F Output Voltage VOUT (V) 3.3 100 Output Current 50 3.2 0 3.1 Output Voltage 3.0 -50 2.9 -100 Output Current IOUT (mA) 150 3.4 -150 2.8 0 2 4 6 8 10 12 Time t (s) 14 16 18 20 R1121N301B VIN=4V CIN=Tantalum 1F COUT=Tantalum 6.8F Output Voltage VOUT (V) 3.3 100 Output Current 50 3.2 0 3.1 Output Voltage 3.0 -50 2.9 -100 Output Current IOUT (mA) 150 3.4 -150 2.8 0 2 4 6 8 10 12 Time t (s) 14 16 18 20 15 R1121N TECHNICAL NOTES G( (!% (*"(#(= * !(!%# '#(('* (#((* (J # #% # " *+ ( $ ( .+ ( ( /(( *"= 4 CE Vout 1 R1121N301B 3 Vin Vin 2 GND Ceramic Capacitor Spectrum S.A. Analyzer ESR Iout Ceramic Capacitor 1F Measuring Circuit for white noise ; R1121N301B (#"(!. # (/(* # # "((#" ( ("("( (C 4.2/( $ (# .(=G(( ' # (( # #(" # # *# '#( (% #( ' ( ; * % ! " ' &( '#(( ( (:;/ K' ( ((L ./ 45C4 ./ J+ ( $(= 6868 .-/ '# = R1121N301B R1121N301B Ceramic 2.2F Ceramic 1.0F 100.0 10.0 10.0 ESR () ESR () 100.0 1.0 1.0 0.1 0 50 100 Output Current IOUT (mA) 16 150 0.1 0 50 100 Output Current IOUT (mA) 150 R1121N * ,4(A3( ** (!*'#( %(# , #( #('$ * (( # " # ( *J'"(4(A3 # * &( '#((%# $ # # % # ! ( ', "( # TYPICAL APPLICATION CE CE IN Cap. VDD OUT R1121Nxx1A VOUT GND Cap. IN Cap. VDD OUT R1121Nxx1B VOUT GND Cap. 17