RICOH RN5RK212A-TL, RN5RK212A-TR, RN5RK221A-TL, RN5RK221A-TR, RN5RK221B-TL Datasheet

62705608#9)0#67(3083#'&2'&

&219(57(5

5185.

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

××

4$2

××

4%2

××

5$#6(5,(6

NO. EA-045-0006

SOT-23-5 VFM STEP-UP DC/DC CONVERTER

5185.××

××4$2××

××××

××4%2××

××××

××5$#6(5,(6

××××

OUTLINE

7KH#5185.××4$2××4%2××5$#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.××4$2××4%#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.××4$2××4%#ZLWK#RQO\#WKUHH#H[WHUQDO#FRPSRQHQWV=#DQ#LQGXFWRU/#D#GLRGH#DQG#D#FDSDFLWRU1

7KH#5185.××5$#XVHV#WKH#VDPH#FKLS#DV#ZKDW#LV#HPSOR\HG#LQ#WKH#5185.××4$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.××5$#,&#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.××4$2××4%,

8OWUD#/RZ#,QSXW#&XUUHQW#RQ#6WDQGE\ 11111111111111111111111111111111 7<31#3—$

•

+LJK#2XWSXW#9R O W D J H #$FFXUDF\ 111111111111111111111111111111111111111111 “518(

•

/RZ#5LSSOH#DQG#/RZ#1RLVH

•

/RZ#6WDUW0XS#9RO W D J H 1111111111111111111111111111111111111111111111111111111111 0$;1#31<9

•

+LJK#(IILFLHQF\ 1111111111111111111111111111111111111111111111111111111111111111111 7<31#;3(

•

,QFOXGLQJ#D#'ULYHU#7UDQVLVWRU#ZLWK#/RZ#21#5HVLVWDQFH

•

7Z R #.LQGV#RI#'XW\#5DWLR1111111111111111111111111111111111111111111111111111 ::(#+

•

2XWSXW#9R O W D J H 11111111111111111111111111111111111111111111111111111111111111111111 6WHSZLVH#VHWWLQJ#ZLWK#D#VWHS#RI#3149#LQ#WKH#UDQJH#RI#5139#WR

•

8189#LV#SRVVLEOH#+UHIHU#WR#6HOHFWLRQ#*XLGH,

/RZ#7HPSHUDWXUH0'ULIW#&RHIILFLHQW#RI#2XWSXW#9R O W D J H 11111 7<31#“433SSP2ƒ&

•

6PDOO#3DFNDJHV 1111111111111111111111111111111111111111111111111111111111111111111 62705608#+0LQL00ROG,

•

4$/#××5$,2#88(#+××4%,

××

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

RN5RK××1A/××1B/××2A

BLOCK DIAGRAM

*) LX pin: only for RN5RK

Lx*

EXT*

4$2××4%

××

Vref

5

5

VLX Limiter

Buffer

VFM Control

OSC 100kHz

Chip Enable

1

-

+

CE

2

4

OUT

V

GND

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.#

××××0××

↑↑↑ ↑

DEF G

#←3DU W #1XPEHU

Code Contents

287

D

6WHSZLVH#VHWWLQJ#ZLWK#D#VWHS#RI#3149#LQ#WKH#UDQJH#RI#5139#WR#8189#LV#SRVVLEOH1

6HWWLQJ#2XWSXW#9R O W D J H #+9

,#=

'HVLJQDWLRQ#RI#'ULYHU

E

4=#,QWHUQDO#/[#7U1#'ULYHU

5=#([WHUQDO#7U1#'ULYHU

'HVLJQDWLRQ#RI#'XW\#&\FOH

F

$=#::(

%=#88(

'HVLJQDWLRQ#RI#7DSLQJ#W\SH

G

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

2

PIN CONFIGURATION

RN5RK××1A/××1B/××2A

SOT-23-5

54

(mark side)

PIN DESCRIPTION

Pin No. Symbol Pin description

4 &( &KLS#(QDEOH#3LQ

5 9

6 1& 1R#&RQQHFWLRQ

7 *1' *URXQG#3LQ

8 /

Pin No. Symbol Pin description

4 &( &KLS#(QDEOH#3LQ

5 9

6 1& 1R#&RQQHFWLRQ

7 *1' *URXQG#3LQ

287

;

287

12

3

6WHS0XS#2XWSXW#0RQLWRULQJ#3LQ/#3RZHU#6XSSO\#+IRU#GHYLFH#LWVHOI,

6ZLWFKLQJ#3LQ#+1FK#2SHQ#'UDLQ,

6WHS0XS#2XWSXW#0RQLWRULQJ#3LQ/#3RZHU#6XSSO\#+IRU#GHYLFH#LWVHOI,

8 (;7 ([WHUQDO#7U1#'ULYH#3LQ#+&026#2XWSXW,

3

RN5RK××1A/××1B/××2A

ABSOLUTE MAXIMUM RATINGS

Symbol Item Rating Unit

287

9

/;

9

6WHS0XS#2XWSXW#3LQ#9R O W D J H < 9

/;#3LQ#9R O W D J H < 9

(;7

9

&(

9

/;

,

(;7

,

'

3

(;7#3LQ#9R O W D J H ² 316#WR#9

&(#3LQ#9RO W D J H ² 316#WR#9

/[#3LQ#2XWSXW#&XUUHQW 833 P$

(;7#3LQ#2XWSXW#&XUUHQW “63 P$

3RZHU#'LVVLSDWLRQ 583 P:

287#

.316 9

287#

.316 9

7RSW 2SHUDWLQJ#7HPSHUDWXUH#5DQJH ²73#WR#.;8 ƒ&

7V W J 6W R U D J H #7HPSHUDWXUH#5DQJH ²88#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

4

RN5RK××1A/××1B/××2A

ELECTRICAL CHARACTERISTICS

•

RN5RK 1A/ 1B

Symbol Item Conditions MIN. TYP. MAX. Unit

7R S W 58ƒ&

287

9

,1

9

287

2∆7R S W

9

∆

2XWSXW#9R O W D J H 9,1 VHW#9

,QSXW#9R O W D J H ; 9

2XWSXW#9R O W D J H #7HPSHUDWXUH

&RHIILFLHQW

073ƒ&≤7R S W≤;8ƒ& “433 SSP2ƒ&

9VWDUW 6WDUW08S#9R O W D J H 9,1 39→59

9VWDUW2∆7R S W

∆

6WDUW08S#9R O W D J H #7H P S H U D 0

WXUH#&RHIILFLHQW

073ƒ&≤7R S W≤;8ƒ&

,1

39→59-

9

9KROG +ROG0RQ#9RO W D J H #+××4$, 9,1 59→39-

9KROG +ROG0RQ#9RO W D J H #+××4%, 9,1 59→39-

''5

,

6XSSO\#&XUUHQW5 9

,VWDQE\ 6WDQGE\#&XUUHQW 9

/;OHDN

,

/[#/HDNDJH#&XUUHQW 9

0D[LPXP#2VFLOODWRU#)UH0

I

RVF

287 9&(

287

287 9/;

287 9&(

9

TXHQF\

)UHTXHQF\#7HPSHUDWXUH#&R0

I

RVF2

∆

HIILFLHQW

Topt

∆

073ƒ&≤7R S W≤;8ƒ& 3174

287

VHW#9

×

-4

4

4

4

287

319/#,

4P$

31<:8

×

×

31:8 31< 9

0419 P92ƒ&

31: 9

31< 9

287

.3189 58—$

41358 9

99/#9&( 39 318 —$

;9 4 —$

VHW#9

287

×

31<9

;3

433 453 N+]

N+]2

ƒ&

'XW\ 2VFLOODWRU#'XW\#&\FOH#+××4$,

'XW\ 2VFLOODWRU#'XW\#&\FOH#+××4%,

O[OLP

9

&(+

9

&(/

9

&(+

,

&(/

,

''4

,

''4

,

9/[#9R O W DJ H #/LPLW

&(#´+µ#,QSXW#9R O W D J H

&(#´/µ#,QSXW#9R O W D J H

&(#´+µ#,QSXW#&XUUHQW 9

&(#´/µ#,QSXW#&XUUHQW 9

6XSSO\#&XUUHQW4#

6XSSO\#&XUUHQW4#

-5

-5

287 9&(

9

+9/

287 9&(

9

+9/

287 9&(

9

VHW#9

;#

´/µ#VLGH,

VHW#9

;#

´/µ#VLGH,

41<89/#/[#6ZLWFK

21

287 9&(

9

VHW#9

-XGJPHQW#LV#PDGH#E\#WKH#/[

287

287

287

31<9/#21

×

31<9/#21

×

31<9/

×

:3 :: ;8 (

7: 88 96 (

317 319 31; 9

31< 9

ZDYHIRUP

287 9&(

9

VHW#9

-XGJPHQW#LV#PDGH#E\#WKH#/[

287

31<9/

×

316 9

ZDYHIRUP

287

9139/#9&( 9139 0318 3 318 —$

287

9139/#9&( 3139 0318 3 318 —$

5139≤9

5189≤9

287

5179 58 83 —$

≤

287

51<9 63 88 —$

≤

5

RN5RK××1A/××1B/××2A

Symbol Item Conditions MIN. TYP. MAX. Unit

,

,

,

,

,

''4

''4

''4

''4

''4

6XSSO\#&XUUHQW4#

6XSSO\#&XUUHQW4#

6XSSO\#&XUUHQW4#-

6XSSO\#&XUUHQW4#-

6XSSO\#&XUUHQW4#-

-5

-5

5

5

5

6139≤9

6189≤9

7139≤9

7189≤9

8139≤9

287

6179 68 93 —$

≤

287

61<9 73 98 —$

≤

287

7179 78 :8 —$

≤

287

71<9 83 ;3 —$

≤

287

8189 93 <3 —$

≤

;

,/

,/

,/

,/

,/

,/

,/

;

;

;

;

;

;

/[#6ZLWFKLQJ#&XUUHQW 5139≤9

/[#6ZLWFKLQJ#&XUUHQW 5189≤9

/[#6ZLWFKLQJ#&XUUHQW 6139≤9

/[#6ZLWFKLQJ#&XUUHQW 6189≤9

/[#6ZLWFKLQJ#&XUUHQW 7139≤9

/[#6ZLWFKLQJ#&XUUHQW 7189≤9

/[#6ZLWFKLQJ#&XUUHQW 8139≤9

*1) Condition: An Output load resistor RL is connected between V

287

287

287

287

287

287

287

5179/#9/

≤

51<9/#9/

≤

6179/#9/

≤

61<9/#9/

≤

7179/#9/

≤

71<9/#9/

≤

8189/#9/

≤

;

3179 ;3 P$

;

3179 433 P$

;

3179 453 P$

;

3179 473 P$

;

3179 493 P$

;

3179 4;3 P$

;

3179 533 P$

OUT

and GND.

Note that the resistor RL has a resistance which makes an output current 1mA after step-up operation.

*2) The Supply Current 1 (I

DD1

) 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: V

OUT=VCE

=Setting Output Voltage ×0.96

6