RICOH RN5RF18AA-TL, RN5RF18AA-TR, RN5RF18AC, RN5RF18BA-TL, RN5RF18BA-TR Datasheet

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0 (0)

/2:#5,33/(#92/7$*( 5(*8/$725#:,7+#(;7(51$/ 75$16,6725

5185)#6(5,(6

$33/,&$7,21#0$18$/

NO. EA-043-0006

LOW RIPPLE VOLTAGE REGULATOR

WITH EXTERNAL TRANSISTOR

5185)#6(5,(6

OUTLINE

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

)XUWKHUPRUH/# D# VXSUHPH# ULSSOH# UHMHFWLRQ# DQG# D# WUDQVLHQW# UHVSRQVH# DUH# VXLWHG# IRU# SRUWDEOH# FRPPXQLFDWLRU# VXFK# DV FHOO#SKRQHV/#3'$V/#ZDON\#WDONLHV1##6275608#+0LQL#0ROG,#SDFNDJH#LV#DYDLODEOH1

FEATURES

8OWUD#/RZ#6XSSO\#&XUUHQW 11111111111111111111111111111111111111111117<31#63—$

6WDQGE\#0RGH1111111111111111111111111111111111111111111111111111111111111117<31#314—$

+LJK#$FFXUDF\#2XWSXW#9ROWDJH 111111111111111111111111111111111111“513(

+LJK#5LSSOH#5HMHFWLRQ 111111111111111111111111111111111111111111111111117<31#93G%2I 4N+]

/RZ#'URSRXW#9ROWDJH 1111111111111111111111111111111111111111111111111117<31#31492,287 433P$/#GHSHQGHQW#RQ#([WHUQDO#7U1

/RZ#7HPSHUDWXUH#'ULIW 1111111111111111111111111111111111111111111111117<31#“433SSP2ƒ&

+LJK#/LQH#5HJXODWLRQ 1111111111111111111111111111111111111111111111111117<31#3138(29

2XWSXW#9ROWDJH111111111111111111111111111111111111111111111111111111111111116WHSZLVH# VHWWLQJ# ZLWK# D# VWHS# RI# 3149# LQ# WKH# UDQJH# RI# 41;9# WR

9139

&XUUHQW#/LPLW#IRU#H[WHUQDO#7U 111111111111111111111111111111111111117<31#;P$/#/LPLW#D#EDVH#FXUUHQW

APPLICATIONS

3RZHU#VRXUFH#IRU#EDWWHU\0SRZHUHG#HTXLSPHQW

7HOHFRPPXQLFDWLRQV/#&DPHUDV/#9&5V

3RZHU#VRXUFH#IRU#GRPHVWLF#DSSOLDQFHV

1

RICOH RN5RF18AA-TL, RN5RF18AA-TR, RN5RF18AC, RN5RF18BA-TL, RN5RF18BA-TR Datasheet

RN5RF

BLOCK DIAGRAM

RN5RF××A

VDD 2

-

+

4

EXT

VOUT

3

 

 

Vref

 

 

 

Current Limit

 

CE

5

1

GND

VDD 2

RN5RF××B

-

4

EXT

VOUT

3

 

 

+

 

 

 

Vref

 

 

 

Current Limit

 

CE

5

1

GND

SELECTION GUIDE

7KH#RXWSXW#YROWDJH/#WKH#FKLS#HQDEOH#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= 5185)#×××ײ××←3DUW#1XPEHU

− −− −

D EF

G

 

 

Code

Contents

D

6HWWLQJ#2XWSXW#9ROWDJH#+9287,#= 6WHSZLVH#VHWWLQJ#ZLWK#D#VWHS#RI#3149#LQ#WKH#UDQJH#RI#41;9#WR#9139#LV#SRVVLEOH1

'HVLJQDWLRQ#RI#&KLS#HQDEOH#$FWLYH#7\SH

E$=#´/µ#DFWLYH#W\SH %=#´+µ#DFWLYH#W\SH

'HVLJQDWLRQ#RI#3DFNLQJ#W\SH

F$=#7DSLQJ &=#$QWLVWDWLF#EDJ#RQO\#IRU#VDPSOHV

G

'HVLJQDWLRQ#RI#7DSLQJ#W\SH ([1#75/#7/#+UHIHU#WR#7DSLQJ#6SHFLILFDWLRQV/#75#W\SH#LV#SUHVFULEHG#DV#D#VWDQGDUG1,

2

RN5RF

PIN CONFIGURATION

SOT-23-5

 

 

5

 

 

 

 

 

4

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

CE/CE

EXT

 

 

 

 

 

 

 

 

 

(mark side)

 

 

 

 

 

 

 

 

 

GND VDD

VOUT

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1

 

 

2

 

3

 

 

 

PIN DESCRIPTION

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Pin No.

Symbol

 

 

 

 

 

 

 

Pin Description

 

 

 

 

 

 

 

 

 

 

4

*1'

 

 

 

 

 

*URXQG#3LQ

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

5

9''

 

 

 

 

 

,QSXW#3LQ

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

6

9287

 

 

 

 

 

2XWSXW#3LQ

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

7

(;7

 

 

 

 

 

([WHUQDO#7UDQVLVWRU#'ULYH#3LQ#+&026#2XWSXW,

 

 

 

 

 

 

8

&(#RU#&(

 

&KLS#(QDEOH#3LQ

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

ABSOLUTE MAXIMUM RATINGS

Symbol

Item

Rating

Unit

 

 

 

 

9,1

,QSXW#9ROWDJH

45

9

 

 

 

 

9&(

,QSXW#9ROWDJH#IRU#&(2&(#3LQ

0316#WR#9,1#.316

9

 

 

 

 

9(;7

(;7#2XWSXW#9ROWDJH

45

9

 

 

 

 

,(;7

(;7#2XWSXW#&XUUHQW

83

P$

 

 

 

 

3'

3RZHU#'LVVLSDWLRQ

483

P:

 

 

 

 

7RSW

2SHUDWLQJ#7HPSHUDWXUH#5DQJH

073#WR#.;8

ƒ&

 

 

 

 

7VWJ

6WRUDJH#7HPSHUDWXUH#5DQJH

088#WR#.458

ƒ&

 

 

 

 

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

3

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