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627 05608#9)0#67(3083#'&2'& &219(57(5
5185.xx4$2xx4%2xx5$#6(5,(6
$33/,&$7,21#0$18$/
NO. EA-045-0006
SOT-23-5 VFM STEP-UP DC/DC CONVERTER
5185.xx xx4$2xx xx4%2xx xx5$#6(5,(6 xx xx xx
OUTLINE
7KH#5185.xx4$2xx4%2xx5$#6HULHV#DUH#9)0#+&KRSSHU,#6WHS0XS#'&2'&#FRQYHUWHU#,&V#ZLWK#XOWUD#ORZ#VXSSO\#FXU0 UHQW#DQG#KLJK#RXWSXW#YROWDJH#DFFXUDF\#E\#&026#SURFHVV1 (DFK#RI#WKH#5185.xx4$2xx4%#FRQVLVWV#RI#DQ#RVFLOODWRU/#D#9)0#FRQWURO#FLUFXLW/#D#GULYHU#WUDQVLVWRU#WR#KDYH#ORZ#21 UHVLVWDQFH#+/[#VZLWFK,/#D#UHIHUHQFH#YROWDJH#XQLW/#D#KLJK#VSHHG#FRPSDUDWRU/#UHVLVWRUV#IRU#YROWDJH#GHWHFWLRQ/#DQ#/[#VZLWFK SURWHFWLRQ#FLUFXLW#DQG#DQ#LQWHUQDO#FKLS#HQDEOH#FLUFXLW1##$#ORZ# ULSSOH/# KLJK# HIILFLHQF\# VWHS0XS# '&2'&# FRQYHUWHU# FDQ# EH FRPSRVHG#RI#WKLV#5185.xx4$2xx4%#ZLWK#RQO\#WKUHH#H[WHUQDO#FRPSRQHQWV=#DQ#LQGXFWRU/#D#GLRGH#DQG#D#FDSDFLWRU1 7KH#5185.xx5$#XVHV#WKH#VDPH#FKLS#DV#ZKDW#LV#HPSOR\HG#LQ#WKH#5185.xx4$24%#,&#DQG#KDV#D#GULYH#SLQ#+(;7,#IRU DQ# H[WHUQDO# WUDQVLVWRU# LQVWHDG# RI# DQ# /[# SLQ1# # $V# LW# LV# SRVVLEOH# WR# ORDG# D# ODUJH# RXWSXW# FXUUHQW# ZLWK# D# SRZHU# WUDQVLVWRU ZKLFK#KDV#D#ORZ#VDWXUDWLRQ#YROWDJH/#5185.xx5$#,&#LV#UHFRPPHQGDEOH#WR#XVHUV#ZKR#QHHG#DQ#RXWSXW#FXUUHQW#DV#ODUJH#DV EHWZHHQ#VHYHUDO#WHQV#P$#DQG#VHYHUDO#KXQGUHGV#P$1 8VLQJ#WKH#FKLS#HQDEOH#IXQFWLRQ/#LW#LV#SRVVLEOH#WR#PDNH#WKH#VXSSO\#FXUUHQW#RQ#VWDQGE\#PLQLPL]HG1 6LQFH#WKH#SDFNDJH#IRU#WKHVH#,&V#DUH#62705608#+0LQL0PROG,/#KLJK#GHQVLW\#PRXQWLQJ#RI#WKH#,&V#RQ#ERDUG#LV#SRVVLEOH1
FEATURES
* 6PDOO#1XPEHU#RI#([WHUQDO#&RPSRQHQWV 111111111111111111111111111 2QO\#DQ#LQGXFWRU/#D#GLRGH#DQG#D#FDSDFLWRU +5185.xx4$2xx4%, 1#3--$ * 8OWUD#/RZ#,QSXW#&XUUHQW#RQ#6WDQGE\ 11111111111111111111111111111111 7<3 * +LJK#2XWSXW#9ROWDJH#$FFXUDF\ 111111111111111111111111111111111111111111 "518( * /RZ#5LSSOH#DQG#/RZ#1RLVH * /RZ#6WDUW0XS#9ROWDJH1111111111111111111111111111111111111111111111111111111111 0$;1#31<9 1#;3( * +LJK#(IILFLHQF\ 1111111111111111111111111111111111111111111111111111111111111111111 7<3 * ,QFOXGLQJ#D#'ULYHU#7UDQVLVWRU#ZLWK#/RZ#21#5HVLVWDQFH * 7ZR#.LQGV#RI#'XW\#5DWLR 1111111111111111111111111111111111111111111111111111 ::(#+xx4$/#xx5$,2#88(#+xx4%, * 2XWSXW#9ROWDJH11111111111111111111111111111111111111111111111111111111111111111111 6WHSZLVH#VHWWLQJ#ZLWK#D#VWHS#RI#3149#LQ#WKH#UDQJH#RI#5139#WR 8189#LV#SRVVLEOH#+UHIHU#WR#6HOHFWLRQ#*XLGH, 1#"433SSP2& * /RZ#7HPSHUDWXUH0'ULIW#&RHIILFLHQW#RI#2XWSXW#9ROWDJH11111 7<3 * 6PDOO#3DFNDJHV 1111111111111111111111111111111111111111111111111111111111111111111 62705608#+0LQL00ROG,
APPLICATIONS
* 3RZHU#VRXUFH#IRU#EDWWHU\0SRZHUHG#HTXLSPHQW1 * 3RZHU#VRXUFH#IRU#FDPHUDV/#FDPFRUGHUV/#9&5V/##DQG#KDQG0KHOG#FRPPXQLFDWLRQ#HTXLSPHQW1 * 3RZHU#VRXUFH#IRU#WKRVH#DSSOLDQFHV#ZKLFK#UHTXLUH#KLJKHU#FHOO#YROWDJH#WKDQ#WKDW#RI#EDWWHULHV1
1
RN5RKxx1A/xx1B/xx2A
BLOCK DIAGRAM
Lx* Vref VOUT
5
VLX Limiter Buffer
2 -
VFM Control
+
5
EXT*
OSC 100kHz Chip Enable
4 1
GND CE
*)
LX pin: only for RN5RKxx4$2xx4%
SELECTION GUIDE
7KH#RXWSXW#YROWDJH/#WKH#GULYHU#W\SH/#WKH#GXW\#F\FOH#DQG#WKH#WDSLQJ#W\SH#IRU#WKH#,&V#FDQ#EH#VHOHFWHG#DW#WKH#XVHU*V#UH0 TXHVW1 7KH#VHOHFWLRQ#FDQ#EH#PDGH#E\#GHVLJQDWLQJ#WKH#SDUW#QXPEHU#DV#VKRZQ#EHORZ= 5185.#xxxx0xx#3DUW#1XPEHU D EF G Code D 6HWWLQJ#2XWSXW#9ROWDJH#+9287,#= 6WHSZLVH#VHWWLQJ#ZLWK#D#VWHS#RI#3149#LQ#WKH#UDQJH#RI#5139#WR#8189#LV#SRVVLEOH1 'HVLJQDWLRQ#RI#'ULYHU E 4=#,QWHUQDO#/[#7U1#'ULYHU 5=#([WHUQDO#7U1#'ULYHU 'HVLJQDWLRQ#RI#'XW\#&\FOH F $=#::( %=#88( G 'HVLJQDWLRQ#RI#7DSLQJ#W\SH ([1#75/#7/#+UHIHU#WR#7DSLQJ#6SHFLILFDWLRQV/#75#W\SH#LV#SUHVFULEHG#DV#D#VWDQGDUG1, Contents
2
RN5RKxx1A/xx1B/xx2A
PIN CONFIGURATION
SOT-23-5
5 4
(mark side)
1
2
3
PIN DESCRIPTION
Pin No. 4 5 6 7 8 Symbol &( 9287 1& *1' /; &KLS#(QDEOH#3LQ 6WHS0XS#2XWSXW#0RQLWRULQJ#3LQ/#3RZHU#6XSSO\#+IRU#GHYLFH#LWVHOI, 1R#&RQQHFWLRQ *URXQG#3LQ 6ZLWFKLQJ#3LQ#+1FK#2SHQ#'UDLQ, Pin description
Pin No. 4 5 6 7 8
Symbol &( 9287 1& *1' (;7 &KLS#(QDEOH#3LQ
Pin description
6WHS0XS#2XWSXW#0RQLWRULQJ#3LQ/#3RZHU#6XSSO\#+IRU#GHYLFH#LWVHOI, 1R#&RQQHFWLRQ *URXQG#3LQ ([WHUQDO#7U1#'ULYH#3LQ#+&026#2XWSXW,
3
RN5RKxx1A/xx1B/xx2A
ABSOLUTE MAXIMUM RATINGS
Symbol 9287 9/; 9(;7 9&( ,/; ,(;7 3' 7RSW 7VWJ Item 6WHS0XS#2XWSXW#3LQ#9ROWDJH /;#3LQ#9ROWDJH (;7#3LQ#9ROWDJH &(#3LQ#9ROWDJH /[#3LQ#2XWSXW#&XUUHQW (;7#3LQ#2XWSXW#&XUUHQW 3RZHU#'LVVLSDWLRQ 2SHUDWLQJ#7HPSHUDWXUH#5DQJH 6WRUDJH#7HPSHUDWXUH#5DQJH Rating < < 316#WR#9287#.316 316#WR#9287#.316 833 "63 583 73#WR#.;8 88#WR#.458 Unit 9 9 9 9 P$ P$ P: & &
ABSOLUTE MAXIMUM RATINGS $EVROXWH#0D[LPXP#UDWLQJV#DUH#WKUHVKROG#OLPLW##YDOXHV#WKDW#PXVW#QRW#EH#H[FHHGHG#HYHQ#IRU#DQ#LQVWDQW#XQGHU#DQ\#FRQ0 GLWLRQV1#0RUHRYHU/#VXFK#YDOXHV#IRU#DQ\#WZR#LWHPV#PXVW#QRW#EH#UHDFKHG#VLPXOWDQHRXVO\1#2SHUDWLRQ#DERYH#WKHVH#DEVR0 OXWH#PD[LPXP#UDWLQJV#PD\#FDXVH#GHJUDGDWLRQ#RU#SHUPDQHQW#GDPDJH#WR#WKH#GHYLFH1#7KHVH#DUH#VWUHVV#UDWLQJV#RQO\#DQG GR#QRW#QHFHVVDULO\#LPSO\#IXQFWLRQDO#RSHUDWLRQ#EHORZ#WKHVH#OLPLWV1
4
RN5RKxx1A/xx1B/xx2A
ELECTRICAL CHARACTERISTICS
*
RN5RK 1A/ 1B Symbol 9287 9,1 928727RSW 9VWDUW Item 2XWSXW#9ROWDJH ,QSXW#9ROWDJH 2XWSXW#9ROWDJH#7HPSHUDWXUH &RHIILFLHQW 6WDUW08S#9ROWDJH 6WDUW08S#9ROWDJH#7HPSHUD0 WXUH#&RHIILFLHQW +ROG0RQ#9ROWDJH#+xx4$, +ROG0RQ#9ROWDJH#+xx4%, 6XSSO\#&XUUHQW5 6WDQGE\#&XUUHQW /[#/HDNDJH#&XUUHQW 0D[LPXP#2VFLOODWRU#)UH0 TXHQF\ )UHTXHQF\#7HPSHUDWXUH#&R0 HIILFLHQW 2VFLOODWRU#'XW\#&\FOH#+xx4$, 2VFLOODWRU#'XW\#&\FOH#+xx4%, 9/[#9ROWDJH#/LPLW 073&7RSW;8& 9,1 3959-4 073&7RSW;8& 9,1 3959-4 9,1 5939-4 9,1 5939-4 9287 9&( VHW#9287.3189 9287 99 /#9&( 39 9287 9/; ;9 9287 9&( VHW#9287x31<9 073&7RSW;8& 9287 9&( VHW#9287x31<9/#21 #VLGH, +9/;#/ 9287 9&( VHW#9287x31<9/#21 #VLGH, +9/;#/ /#/[#6ZLWFK 9287 9&( 41<89 21 9287 9&( VHW#9287x31<9/ 9&(+ &(#+#,QSXW#9ROWDJH -XGJPHQW#LV#PDGH#E\#WKH#/[ ZDYHIRUP 9287 9&( VHW#9287x31<9/ 9&(/ ,&(+ ,&(/ ,''4 ,''4 &(#/ #,QSXW#9ROWDJH &(#+#,QSXW#&XUUHQW &(#/ #,QSXW#&XUUHQW 6XSSO\#&XUUHQW4#-5 6XSSO\#&XUUHQW4#
-5
7RSW 58& Conditions 9,1 VHW#9287x319/#,287 4P$ MIN. x31<:8 TYP. MAX. x41358 ; "433 31:8 0419 31: 31< 5 8 318 4 ;3 433 3174 :3 7: 317 :: 88 319 ;8 96 31; 453 31< Unit 9 9 SSP2& 9 P92& 9 9 --$ --$ --$ N+] N+]2 & ( ( 9
9VWDUW27RSW 9KROG 9KROG ,''5 ,VWDQE\ ,/;OHDN
IRVF
IRVF2Topt 'XW\ 'XW\ 9O[OLP
31<
9
-XGJPHQW#LV#PDGH#E\#WKH#/[ ZDYHIRUP 9287 9139 /#9&( 9139 9287 9139 /#9&( 3139 513992875179 5189928751<9 0318 0318 3 3 58 63
316 318 318 83 88
9 --$ --$ --$ --$
5
RN5RKxx1A/xx1B/xx2A
Symbol ,''4 ,''4
,''4 ,''4 ,''4
Item 6XSSO\#&XUUHQW4#-5 6XSSO\#&XUUHQW4#-5 6XSSO\#&XUUHQW4#5
Conditions 613992876179 6189928761<9 713992877179 7189928771<9 813992878189 513992875179 /#9/; 3179 5189928751<9 /#9/; 3179 613992876179 /#9/; 3179 6189928761<9 /#9/; 3179 713992877179 /#9/; 3179 7189928771<9 /#9/; 3179 813992878189 /#9/; 3179
MIN.
TYP. 68 73 78 83 93
MAX. 93 98 :8 ;3 <3
Unit --$ --$ --$ --$ --$ P$ P$ P$ P$ P$ P$ P$
6XSSO\#&XUUHQW4#-5 6XSSO\#&XUUHQW4#-5 /[#6ZLWFKLQJ#&XUUHQW /[#6ZLWFKLQJ#&XUUHQW /[#6ZLWFKLQJ#&XUUHQW /[#6ZLWFKLQJ#&XUUHQW /[#6ZLWFKLQJ#&XUUHQW /[#6ZLWFKLQJ#&XUUHQW /[#6ZLWFKLQJ#&XUUHQW
,/; ,/; ,/; ,/; ,/; ,/; ,/; *1) *2)
;3 433 453 473 493 4;3 533
Condition: An Output load resistor RL is connected between VOUT and GND. Note that the resistor RL has a resistance which makes an output current 1mA after step-up operation. The Supply Current 1 (IDD1) for IC itself is measured when the internal oscillator works continuously. If the oscillator works intermittently, the supply current becomes smaller than the value which is written on the above table. Measurement condition: VOUT=VCE=Setting Output Voltage x0.96
6
RN5RKxx1A/xx1B/xx2A
* RN5RKxx xx2A xx 7RSW 58& Symbol 9287 9,1 VOUT2Topt 9VWDUW Vstart/Topt ,''5 ,VWDQE\
)RVF
Item 2XWSXW#9ROWDJH ,QSXW#9ROWDJH Output Voltage Temperature Coefficient 6WDUW08S#9ROWDJH Start-Up Voltage Temperature Coefficient 6XSSO\#&XUUHQW5 6WDQGE\#&XUUHQW 0D[LPXP#2VFLOODWRU#)UH0 TXHQF\ )UHTXHQF\#7HPSHUDWXUH#&R0 HIILFLHQW 2VFLOODWRU#'XW\#&\FOH
Conditions 9,1 VHW#9287x319/#,287 4P$
MIN. x31<:8
TYP.
MAX. x41358 ;
Unit 9 9 SSP2&
073&7RSW;8& 9,1 3959-4 -40CTopt85C VIN=0V2V*1 9287 9&( VHW#9287.3189 9287 99 /#9&( 39 9287 9&( VHW#9287x31<9 073&7RSW;8& 9287 9&( VHW#9287x31<9/ 21#+9(;7#+#VLGH, 9287 9&( VHW#9287x31<9/ -XGJPHQW#LV#PDGH#E\#WKH#(;7 ZDYHIRUP 9287 9&( VHW#9287x31<9 :3 ;3 0419
"433 31: 31;
9 P92&
5
8 318
--$ --$ N+] N+]2&
433 3174 ::
453
IRVF2Topt 'XW\
;8
(
9&(+
&(#+#,QSXW#9ROWDJH
31<
9
9&(/ ,&(+ ,&(/ ,''4 ,''4 ,''4 ,''4 ,(;7+ ,(;7+
&(#/ #,QSXW#9ROWDJH &(#+#,QSXW#&XUUHQW &(#/ #,QSXW#&XUUHQW 6XSSO\#&XUUHQW4 6XSSO\#&XUUHQW4 6XSSO\#&XUUHQW4 6XSSO\#&XUUHQW4 (;7#+#2XWSXW#9ROWDJH (;7#+#2XWSXW#9ROWDJH
-XGJPHQW#LV#PDGH#E\#WKH#(;7 ZDYHIRUP 9287 9139 /#9&( 9139 9287 9139 /#9&( 3139 5139928751<9 /#(;7#QR#ORDG-5 6139928761<9 /#(;7#QR#ORDG-5 7139928771<9 /#(;7#QR#ORDG-5 813992878189 /#(;7#QR#ORDG-5 / 5139928751<9 9(;7 928703179 / 6139928761<9 9(;7 928703179 0318 0318 3 3 53 58 63 68
316 318 318 73 83 93 :3 0413 0418
9 --$ --$ --$ --$ --$ --$ P$
P$
7
RN5RKxx1A/xx1B/xx2A
Symbol ,(;7+ ,(;7+ ,(;7+ ,(;7+ *1) *2)
Item (;7#+#2XWSXW#9ROWDJH (;7#/#2XWSXW#9ROWDJH (;7#/#2XWSXW#9ROWDJH (;7#/#2XWSXW#9ROWDJH
Conditions / 713992878189 9(;7 928703179 5139928751<9 /#9(;7 3179 6139928761<9 /#9(;7 3179 713992878189 /#9(;7 3179
MIN.
TYP.
MAX. 0513
Unit P$ P$ P$ P$
413 418 513
Condition: An Output load resistor RL is connected between VOUT and GND. Note that the resistor RL has a resistance which makes an output current 1mA after step-up operation. The Supply Current 1 (IDD1) for IC itself is measured when the internal oscillator works continuously. If the oscillator works intermittently, the supply current becomes smaller than the value which is written on the above table. Measurement condition: VOUT=VCE=Setting Output Voltage x0.96
8
RN5RKxx1A/xx1B/xx2A
TEST CIRCUITS
SBD
1K Lx VOUT A
L
Lx
VOUT V RL
GND CE
CL
VIN
CL GND CE
Test Circuit 1
Test Circuit 2
Lx
VOUT
GND
CE
CL
Osilloscope
Test Circuit 3 *) When VLXlim and ILX are measured, the 5resistor is used. Otherwise 1kis used. =#433--+/#553--+#+6XPLGD#(OHFWULF#&R1/#/WG>#&'087, =#7:--)#+7DQWDOXP#7\SH,
&RPSRQHQWV#,QGXFWRU +/, 'LRGH &DSDFLWRU +&/,
+6%', =#0$:54#+0DWVXVKLWD#(OHFWURQLFV#&RUSRUDWLRQ>#6FKRWWN\#7\SH,
8VLQJ#WKHVH#WHVW#FLUFXLWV#FKDUDFWHULVWLFV#GDWD#KDV#EHHQ#REWDLQHG#DV#VKRZQ#RQ#WKH#IROORZLQJ#SDJHV1 7HVW#&LUFXLW#4 7HVW#&LUFXLW#5 7HVW#&LUFXLW#6 =#7<3,&$/#&+$5$&7(5,67,&6#+4,0+:, =#7<3,&$/#&+$5$&7(5,67,&6#+<,0+44, =#7<3,&$/#&+$5$&7(5,67,&6#+;,/#+45,0+49,
9
RN5RKxx1A/xx1B/xx2A
SBD
EXT VOUT A
L
Tr
Rb EXT VOUT V
GND CE
CL
VIN
Cb GND CE
CL
Test Circuit 1
100
EXT Osilloscope GND CE CL VOUT
Test Circuit 2
EXT
VOUT
GND
CE
CL
Osilloscope
Test Circuit 3 &RPSRQHQWV#,QGXFWRU +/, 'LRGH &DSDFLWRU 7UDQVLVWRU %DVH#5HVLVWRU +&/, +7U, +5E, =#5:--+#+6XPLGD#(OHFWULF#&R1/#/WG>#&'0437, =#7:--)x5+7DQWDOXPH#7\SH, =#56'495;* =#633%DVH#&DSDFLWRU#+&E,=#3134--)
Test Circuit 4
+6%', =#5%444&#+52+0#&R1/#/WG>#6FKRWWN\#7\SH,
8VLQJ#WKHVH#WHVW#FLUFXLWV#FKDUDFWHULVWLFV#GDWD#KDV#EHHQ#REWDLQHG#DV#VKRZQ#RQ#WKH#IROORZLQJ#SDJHV1 7HVW#&LUFXLW#4 7HVW#&LUFXLW#5 7HVW#&LUFXLW#6 7HVW#&LUFXLW#7 =#7<3,&$/#&+$5$&7(5,67,&6#+4,0+8, =#7<3,&$/#&+$5$&7(5,67,&6#+;,0+43, =#7<3,&$/#&+$5$&7(5,67,&6#+44,0+47, =#7<3,&$/#&+$5$&7(5,67,&6#+9,/#+:,
10
RN5RKxx1A/xx1B/xx2A
TYPICAL CHARACTERISTICS
* RN5RKxx xx1A/B xx 1) Output Voltage vs. Output Current (Topt=25C) RN5RK301A
3.5 L=100H 3.5
RN5RK301A
L=220H
Output Voltage VOUT(V)
2.0V 2.5 2.0 1.5 1.0 0.5 0.0 0 20 40 60 80 100 120 140 160 VIN=0.9V 1.5V 1.0V 1.3V
Output Voltage VOUT(V)
3.0
3.0 2.5 2.0 VIN=0.9V 1.5 1.0 0.5 0.0 0 20 40 60 80 100 120 140 160 1.3V 1.0V 1.5V 2.0V
Output Current IOUT(mA)
Output Current IOUT(mA)
RN5RK301B
3.5 L=100H 3.5
RN5RK301B
L=220H
Output Voltage VOUT(V)
2.0V 1.3V VIN=1.0V 1.5V
Output Voltage VOUT(V)
3.0 2.5 2.0 1.5 1.0 0.5 0.0 0 10 20 30 40
3.0 2.5 2.0 1.5 1.0 0.5 0.0 0 10 20 30 40 1.3V VIN=1.0V 1.5V
2.0V
50
50
Output Current IOUT(mA)
Output Current IOUT(mA)
RN5RK501A
6 L=100H 4.0V 2.0V 4 VIN=0.9V 3 2 1 0 0 50 100 150 200 1.5V 3.0V
RN5RK501A
6 L=220H 4.0V
Output Voltage VOUT(V)
Output Voltage VOUT(V)
5
5 4 3 2 1 0 0 50 100 150 VIN=0.9V 1.5V 2.0V
3.0V
200
Output Current IOUT(mA)
Output Current IOUT(mA)
11
RN5RKxx1A/xx1B/xx2A
RN5RK501B
6 L=100H 4.0V 6
RN5RK501B
L=220H 4.0V 2.0V 2.5V VIN=1.5V 3.0V
Output Voltage VOUT(V)
4 3 2 1 0 0
2.5V 2.0V VIN=1.5V
3.0V
Output Voltage VOUT(V)
200
5
5 4 3 2 1 0
50
100
150
0
50
100
150
200
Output Current IOUT(mA)
Output Current IOUT(mA)
2)
Efficiency vs. Output Current (Topt=25C) RN5RK301A
100 90 L=100H
RN5RK301A
100 90 L=220H
Efficiency (%)
Efficiency (%)
80 70 2.0V 60 1.0V 50 VIN=0.9V 1.3V 40 0 20 40 60 80 100 120 140 160 1.5V
80 70 60 50 40 0 20 1.0V VIN=0.9V 1.3V 60 80 100 120 140 160 1.5V
2.0V
40
Output Current IOUT(mA)
Output Current IOUT(mA)
RN5RK301B
100 90 L=100H 100 90 1.3V 1.5V VIN=1.0V 2.0V
RN5RK301B
L=220H
Efficiency (%)
80 70 60 50 40 0 10 20 30 40 50
Efficiency (%)
80 1.3V 70 VIN=1.0V 60 50 0 10 20 30 40 50 1.5V 2.0V
Output Current IOUT(mA)
Output Current IOUT(mA)
12
RN5RKxx1A/xx1B/xx2A
RN5RK501A
100 90 L=100H 100 90
RN5RK501A
L=220H
4.0V
Efficiency (%)
80 2.0V 70 VIN=0.9V 60 50 40 0 50 100 150 1.5V
Efficiency (%)
4.0V 3.0V
80 70 60 50 2.0V 40 1.5V VIN=0.9V 3.0V
200
0
50
100
150
200
Output Current IOUT(mA)
Output Current IOUT(mA)
RN5RK501B
100 90 L=100H 4.0V 100 90
RN5RK501B
L=220H
Efficiency (%)
80 70
Efficiency (%)
2.0V 2.5V 3.0V VIN=1.5V
80 70 60 50 40
2.0V 2.5V VIN=1.5V
4.0V 3.0V
60 50 40 0 50 100 150 200
0
50
100
150
200
Output Current IOUT(mA)
Output Current IOUT(mA)
3)
Ripple Voltage vs. Output Current (Topt=25C) RN5RK301A
140 1.5V L=100 H
RN5RK301A
160 L=220H
Ripple Voltage Vr(mVp-p)
Ripple Voltage Vr(mVp-p)
120 100 80 60 40 20 0 0 20 40 60 80 100 120 140 160 1.0V VIN=0.9V 1.3V
140 120 100 80 60 40 20 VIN=0.9V 0 0 20 40 60 80 100 120 140 160 1.0V 1.3V 1.5V 2.0V
2.0V
Output Current IOUT(mA)
Output Current IOUT(mA)
13
RN5RKxx1A/xx1B/xx2A
RN5RK301B
45 L=100H 2.0V 45 40 35 30 25 20 15 10 5 0 0 10 20 30 40 50 VIN=1.0V 1.3V 1.5V 40 35 30 25 20 15 10 5 0 0
RN5RK301B
L=220H
Ripple Voltage Vr(mVp-p)
Ripple Voltage Vr(mVp-p)
2.0V
1.0V 1.3V 1.5V
10
20
30
40
50
Output Current IOUT(mA)
Output Current IOUT(mA)
RN5RK501A
200 L=100H 200
RN5RK501A
L=220H
Ripple Voltage Vr(mVp-p)
150
Ripple Voltage Vr(mVp-p)
3.0V
150 2.0V 100
3.0V 4.0V
100 2.0V 50 1.5V VIN=0.9V 0 0 50 100 150
4.0V
50 1.5V VIN=0.9V 0
200
0
50
100
150
200
Output Current IOUT(mA)
Output Current IOUT(mA)
RN5RK501B
140 L=100H 3.0V 140
RN5RK501B
L=220H
Ripple Voltage Vr(mVp-p)
100 80 60 40 20 VIN=1.5V 0 0 50 100 150 200 2.0V 2.5V 4.0V
Ripple Voltage Vr(mVp-p)
120
120 100 3.0V 80 60 40 2.5V 20 VIN=1.5V 0 0 50 100 150 200 4.0V
Output Current IOUT(mA)
Output Current IOUT(mA)
14
RN5RKxx1A/xx1B/xx2A
4)
Start-up/Hold-on Voltage vs. Output Current (Topt=25C) RN5RK301A
1.4 L=100H
1.4
RN5RK501A
L=100H
Start-up/Hold-on Voltage Vstart/Vhold(V)
1.0 0.8 0.6 0.4
Start-up/Hold-on Voltage Vstart/Vhold(V)
1.2 Vstart
1.2 1.0 0.8 0.6 Vhold 0.4 0.2 0.0 0 5 10 15 Vstart
Vhold 0.2 0.0 0 5 10 15
Output Current IOUT(mA)
Output Current IOUT(mA)
RN5RK301B
2.0 1.8 L=100H
2.0 1.8
RN5RK501B
L=100H
Start-up/Hold-on Voltage Vstart/Vhold(V)
1.6 1.4 1.2 1.0 0.8 0.6 0.4 0.2 0.0 0 5 10 15 Vhold Vstart
Start-up/Hold-on Voltage Vstart/Vhold(V)
1.6 1.4 1.2 1.0 0.8 0.6 0.4 0.2 0.0 0 5 10 15 Vhold Vstart
Output Current IOUT(mA)
Output Current IOUT(mA)
5)
Output Voltage vs. Temperature RN5RK301A
3.10 VIN=1.5V,L=100H
RN5RK501A
5.10 VIN=3.0V,L=100H
Output Voltage VOUT(V)
Output Voltage VOUT(V)
3.05
5.05
IOUT=0mA IOUT=10mA
3.00
5.00
IOUT=30mA
2.95 IOUT=30mA 2.90 -50
4.95
IOUT=0mA IOUT=10mA
-25
0
25
50
75
100
4.90 -50
-25
0
25
50
75
100
Temperature Topt( )
Temperature Topt( )
15
RN5RKxx1A/xx1B/xx2A
6)
Start-up Voltage vs. Temperature RN5RK501A
1 L=100 H
RN5RK501B
1 L=100H
Start-up Voltage Vstart(V)
-25 0 25 50 75 100
Start-up Voltage Vstart(V)
0.8 0.6 0.4 0.2 0 -50
0.8 0.6 0.4 0.2 0 -50
-25
0
25
50
75
100
Temperature Topt( )
Temperature Topt( )
7)
Hold-on Voltage vs. Temperature RN5RK501A
1 L=100H 1
RN5RK501B
L=100H
Hold-on Voltage Vhold(V)
0.8 0.6 0.4 0.2 0 -50
Hold-on Voltage Vhold(V)
-25 0 25 50 75 100
0.8 0.6 0.4 0.2 0 -50
-25
0
25
50
75
100
Temperature Topt( )
Temperature Topt( )
8)
Lx Switching Current vs. Temperature RN5RK301A
500 500
RN5RK501A
LxSwitching Current ILx(mA)
LxSwitching Current ILx(mA)
400 300 200 100 0 -50
400 300 200 100 0 -50
-25
0
25
50
75
100
-25
0
25
50
75
100
Temperature Topt( )
Temperature Topt( )
16
RN5RKxx1A/xx1B/xx2A
9)
Supply Current 1 vs. Temperature RN5RK301A
50 80
RN5RK501A
Supply Current1 IDD1(A)
Supply Current1 IDD1(A)
40
70 60 50 40 30 -50
30
20
10 -50
-25
0
25
50
75
100
-25
0
25
50
75
100
Temperature Topt( )
Temperature Topt( )
10) Supply Current 2 vs. Temperature RN5RK301A
5 4 3 2 1 0 -50
11) Standby Current 3 vs. Temperature RN5RK301A
1
Supply Current3 Istandby(A)
-25 0 25 50 75 100
Supply Current2 IDD2(A)
0.8 0.6 0.4 0.2 0 -50
-25
0
25
50
75
100
Temperature Topt( )
Temperature Topt( )
12) Oscillator Duty Cycle vs. Temperature RN5RK301A
Oscullator Duty Cycle Maxduty(%) Oscullator Duty Cycle Maxduty(%)
85 60 58 56 54 52 50 -50
RN5RK301B
80
75
70 -50
-25
0
25
50
75
100
-25
0
25
50
75
100
Temperature Topt( )
Temperature Topt( )
17
RN5RKxx1A/xx1B/xx2A
13) CE "H" Input Voltage vs. Temperature RN5RK301A
1
14) CE "L" Input Voltage vs. Temperature RN5RK301A
1
CE H Input Voltage VCEH(V)
0.8 0.6 0.4 0.2 0 -50
CE L Input Voltage VCEL(V)
-25 0 25 50 75 100
0.8 0.6 0.4 0.2 0 -50
-25
0
25
50
75
100
Temperature Topt( )
Temperature Topt( )
15) Maximum Oscillator Frequency vs. Temperature RN5RK301A
Maximum Oscillator Frequency fOSC(kHz)
16) VLX Voltage Limit vs. Temperature RN5RK301A
0.8
120 110 100 90 80 70 60 50 -50
0.4 -50 -25 0 25 50 75 100
VLx Voltage Limit VLx(V)
-25 0 25 50 75 100
0.7
0.6
0.5
Temperature Topt( )
Temperature Topt( )
18
RN5RKxx1A/xx1B/xx2A
* RN5RKxx xx2A xx 1) Output Voltage vs. Output Current (Topt=25C) RN5RK302A
3.5 L=27H 6.0
RN5RK502A
L=27H
Output Voltage VOUT(V)
2.0V
Output Voltage VOUT(V)
3.0 2.5 2.0 1.5 1.0 0.5 0 0 200 400 600 VIN=0.9V 1.3V 1.0V 1.5V
5.0 2.0V 4.0 3.0 2.0 1.0 0.0 VIN=1.0V 1.5V 3.0V
800
0
200
400
600
800
Output Current IOUT(mA)
Output Current IOUT(mA)
2)
Efficiency vs. Output Current (Topt=25C) RN5RK302A
100 90 L=27H 100 90
RN5RK502A
L=27H
Efficiency (%)
80 2.0V 70 1.5V 60 VIN=0.9V 50 40 0 200 400 600 800 1.0V 1.3V
Efficiency (%)
80 3.0V 70 VIN=1.0V 60 50 40 30 0 200 400 600 800 1.5V 2.0V
Output Current IOUT(mA)
Output Current IOUT(mA)
3)
Ripple Voltage vs. Output Current (Topt=25C) RN5RK302A
250 L=27H 300 2.0V 1.3V 200 150 100 50 VIN=0.9V 0 0 200 400 600 800 0 0 200 400 600 800 1.0V 1.5V 2.0V
RN5RK502A
L=27H
Ripple Voltage Vr(mVp-p)
Ripple Voltage Vr(mVp-p)
250 200 150 100 50
1.5V
3.0V
VIN=1.0V
Output Current IOUT(mA)
Output Current IOUT(mA)
19
RN5RKxx1A/xx1B/xx2A
4)
Start-up/Hold-on Voltage vs. Output Current (Topt=25C) RN5RK302A
2.0 1.8 L=27H
RN5RK502A
2.4 2.2 2.0 1.8 1.6 1.4 Vstart,Vhold 1.2 1.0 0.8 0.6 0.4 0.2 0.0 0 50 L=27H
Start-up/Hold-on Voltage Vstart/Vhold(V)
1.6 1.4 1.2 Vstart 1.0 0.8 0.6 0.4 0.2 0.0 0 50 100 150 200 Vhold
Start-up/Hold-on Voltage Vstart/Vhold(V)
100
150
200
Output Current IOUT(mA)
Output Current IOUT(mA)
5)
Output Voltage vs. Temperature RN5RK302A
3.10 VIN=1.2V,L=27H
5.10
RN5RK502A
VIN=3.0V,L=27H
Output Voltage VOUT(V)
Output Voltage VOUT(V)
3.05 IOUT=0mA 3.00 2.95 IOUT=50mA 2.90 2.85 2.80 -50 IOUT=100mA
5.05
IOUT=0mA
5.00
IOUT=100mA IOUT=50mA
4.95
-25
0
25
50
75
100
4.90 -50
-25
0
25
50
75
100
Temperature Topt( )
Temperature Topt( )
6)
EXT "H" Output Current vs. Temperature RN5RK302A
EXT H Output Current IEXTH(mA)
9 8 7 6 5 4 3 2 1 0 -50 -25 0 25 50 75 100
RN5RK502A
EXT H Output Current IEXTH(mA)
10 9 8 7 6 5 4 3 2 1 0 -50 -25 0 25 50 75 100
10
Temperature Topt( )
Temperature Topt( )
20
RN5RKxx1A/xx1B/xx2A
7)
EXT "L" Output Current vs. Temperature RN5RK302A
EXT L Output Current IEXTL(mA)
18 16 14 12 10 8 6 4 2 0 -50 -25 0 25 50 75 100
RN5RK502A
EXT L Output Current IEXTL(mA)
20 18 16 14 12 10 8 6 4 2 0 -50 -25 0 25 50 75 100
20
Temperature Topt( )
Temperature Topt( )
8)
Supply Current 1 vs. Temperature RN5RK302A
50 50
RN5RK502A
Supply Current1 IDD1(A)
Supply Current1 IDD1(A)
40 30 20 10 0 -50
40 30 20 10 0 -50
-25
0
25
50
75
100
-25
0
25
50
75
100
Temperature Topt( )
Temperature Topt( )
9)
Supply Current 2 vs. Temperature RN5RK302A
5
10) Standby Current vs. Temperature RN5RK302A
1
Supply Current3 Istandby(A)
-25 0 25 50 75 100
Supply Current2 IDD2(A)
4 3 2 1 0 -50
0.8 0.6 0.4 0.2 0 -50
-25
0
25
50
75
100
Temperature Topt( )
Temperature Topt( )
21
RN5RKxx1A/xx1B/xx2A
11) Oscillator Duty Cycle vs. Temperature RN5RK302A
Oscullator Duty Cycle Maxduty(%)
85
12) Maximum Oscillator Frequency vs. Temperature RN5RK302A
120
Maximum Oscillator Frequency
-25 0 25 50 75 100
110 100
fOSC(kHz)
80
90 80 70 60 50 -50 -25 0 25 50 75 100
75
70 -50
Temperature Topt( )
Temperature Topt( )
13) CE "H" Input Voltage vs. Temperature RN5RK302A
1
14) CE "L" Input Voltage vs. Temperature RN5RK302A
1
CE H Input Voltage VCEH(V)
0.8 0.6 0.4 0.2 0 -50
CE L Input Voltage VCEL(V)
-25 0 25 50 75 100
0.8 0.6 0.4 0.2 0 -50
-25
0
25
50
75
100
Temperature Topt( )
Temperature Topt( )
22

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