电源管理IC MARK INFORMATIONS

ME-R1210N-0310

R1210N系列标志规格

SOT- 23-5 （ SC- 74A ）

1

3

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,

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4

：产品代码（参考型号对比产品代码）

：批号

产品型号与产品代码

产品编号

1

2

产品型号

R1210N221A

R1210N231A

R1210N241A

R1210N251A

R1210N261A

R1210N271A

R1210N281A

R1210N291A

R1210N301A

R1210N311A

R1210N321A

R1210N331A

R1210N341A

R1210N351A

R1210N221C

R1210N231C

R1210N241C

R1210N251C

R1210N261C

R1210N271C

R1210N281C

R1210N291C

R1210N301C

R1210N311C

R1210N321C

R1210N331C

R1210N341C

R1210N351C

R1210N361C

R1210N371C

R1210N381C

R1210N391C

R1210N401C

R1210N411C

R1210N421C

R1210N431C

R1210N441C

R1210N451C

R1210N461C

R1210N471C

R1210N481C

R1210N491C

R1210N501C

产品型号

R1210N511C

R1210N521C

R1210N531C

R1210N541C

R1210N551C

R1210N561C

R1210N571C

R1210N581C

R1210N591C

R1210N601C

R1210N221D

R1210N231D

R1210N241D

R1210N251D

R1210N261D

R1210N271D

R1210N281D

R1210N291D

R1210N301D

R1210N311D

R1210N321D

R1210N331D

R1210N341D

R1210N351D

R1210N361D

R1210N371D

R1210N381D

R1210N391D

R1210N401D

R1210N411D

R1210N421D

R1210N431D

R1210N441D

R1210N451D

R1210N461D

R1210N471D

R1210N481D

R1210N491D

R1210N501D

R1210N511D

R1210N521D

R1210N531D

R1210N541D

产品编号

1

2

产品型号

R1210N551D

R1210N561D

R1210N571D

R1210N581D

R1210N591D

R1210N601D

R1210N222C

R1210N232C

R1210N242C

R1210N252C

R1210N262C

R1210N272C

R1210N282C

R1210N292C

R1210N302C

R1210N312C

R1210N322C

R1210N332C

R1210N342C

R1210N352C

R1210N362C

R1210N372C

R1210N382C

R1210N392C

R1210N402C

R1210N412C

R1210N422C

R1210N432C

R1210N442C

R1210N452C

R1210N462C

R1210N472C

R1210N482C

R1210N492C

R1210N502C

R1210N512C

R1210N522C

R1210N532C

R1210N542C

R1210N552C

R1210N562C

R1210N572C

R1210N582C

产品编号

1

2

产品型号

R1210N592C

R1210N602C

R1210N222D

R1210N232D

R1210N242D

R1210N252D

R1210N262D

R1210N272D

R1210N282D

R1210N292D

R1210N302D

R1210N312D

R1210N322D

R1210N332D

R1210N342D

R1210N352D

R1210N362D

R1210N372D

R1210N382D

R1210N392D

R1210N402D

R1210N412D

R1210N422D

R1210N432D

R1210N442D

R1210N452D

R1210N462D

R1210N472D

R1210N482D

R1210N492D

R1210N502D

R1210N512D

R1210N522D

R1210N532D

R1210N542D

R1210N552D

R1210N562D

R1210N572D

R1210N582D

R1210N592D

R1210N602D

产品编号

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9

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0

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627

05608 ＃ 3 ： 0 ＃ 6WHS0XS ＃ ' &2'&

&219(57(5

545431±±5±#6(5,(6

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

NO 。 EA- 064-0006

SOT- 23-5 PWM降压型DC / DC转换器

5454315#6(5,(6

概要

7KH ＃ 545431 ;; 5&2 ;; 5 ' ＃ 6HULHV ＃ DUH ＃ 3 ： 0 ＃ VWHS0XS ＃' &2'& ＃ &RQYHUWHU ＃ FRQWUROOHUV / ＃ ZLWK ＃ KLJK ＃ DFFXUDF \\ / ＃ ORZ ＃ VXSSO \\

FXUUHQW#E\#&026#SURFHVV1

(DFK#RI#WKH#545431;;5;#6HULHV#FRQVLVWV#RI#DQ#RVFLOODWRU/#D#3:0#FLUFXLW/#D#UHIHUHQFH#YROWDJH#XQLW/#DQ#HUURU#DPSOL0

ILHU/#SKDVH#FRPSHQVDWLRQ#FLUFXLW/#UHVLVWRUV#IRU#YROWDJH#GHWHFWLRQ/#D#FKLS#HQDEOH#FLUFXLW/#D#FRQWUROOHU#DJDLQVW#GUDVWLF#ORDG

WUDQVLHQW#DQG#DQ#RXWSXW#YROWDJH#GHWHFWRU1#$#ORZ#ULSSOH/#KLJK#HIILFLHQF\#VWHS0XS#'&2'&#FRQYHUWHU#FDQ#EH#FRPSRVHG#RI

WKLV#,&#ZLWK#RQO\#IRXU#H[WHUQDO#FRPSRQHQWV/#RU#DQ#LQGXFWRU/#D#GLRGH/#D#WUDQVLVWRU#DQG#D#FDSDFLWRU1

7KH#545431;;5;#6HULHV#FDQ#GHWHFW#GUDVWLF#FKDQJH#RI#RXWSXW#YROWDJH#ZLWK#D#FLUFXLW#FRQWUROOHU/#WKH#ORDG#WUDQVLHQW#UH0

VSRQVH#LV#LPSURYHG1

(DFK#RI#WKH#545431;;5;#6HULHV#KDV#D#GULYHU#SLQ/#RU#(;7·#SLQ#IRU#H[WHUQDO#WUDQVLVWRU1#%\#FRQQHFWLQJ#D#SRZHU#WUDQ0

VLVWRU#ZLWK#ORZ#210UHVLVWDQFH#WR#(;7#SLQ/#D#ODUJH#FXUUHQW#IORZV#WKURXJK#DQ#LQGXFWRU/#WKXV/#ODUJH#RXWSXW#FXUUHQW#FDQ#EH

VXSSOLHG1

7KH#EXLOW0LQ#FKLS#HQDEOH#FLUFXLW#FDQ#PDNH#WKH#VWDQGE\#PRGH#ZLWK#XOWUD#ORZ#TXLHVFHQW#FXUUHQW1

6LQFH#WKH#SDFNDJH#IRU#WKHVH#,&V#LV#VPDOO#62705608/#KLJK#GHQVLW\#PRXQWLQJ#RI#WKH#,&V#RQ#ERDUG#LV#SRVVLEOH1

特点

（ [ WHUQDO ＃ &RPSRQHQWV

111111111111111111111111111111111111111111111111111111111

2QO\#DQ#LQGXFWRU/#D#GLRGH/#D#FDSDFLWRU/#DQG#D#WUDQVLVWRU

6WDQGE\#&XUUHQW

111111111111111111111111111111111111111111111111111111111111111111

7<3

1#3—$

/ RZ ＃ 7HPSHUDWXUH0'ULIW ＃ &RHIILFLHQW ＃ RI ＃ 2XWSXW ＃ 9ROWDJH111111 7<3

1#“433SSP2°&

2XWSXW ＃ 9ROWDJH111111111111111111111111111111111111111111111111111111111111111111111 6WHSZLVH ＃ 6HWWLQJ ＃ ZLWK ＃ D＃ VWHS ＃ RI ＃ 3149 ＃ LQ ＃ WKH ＃ UDQJH ＃ RI ＃ 5159 ＃ WR

9139

7ZR#FKRLFHV#RI#%DVLF#2VFLOODWRU#)UHTXHQF\111111111111111111111111

433N+]#+;;5&,/#4;3N+]#+;;5',

6PDOO#3DFNDJH

1111111111111111111111111111111111111111111111111111111111111111111111

62705608#+0LQL0PROG,

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

2VFLOODWRU ＃ 6WDUW0XS ＃ 9ROWDJH11111111111111111111111111111111111111111111111111 0 $ ; 1 ＃ 31 ; 9

应用

3RZHU#VRXUFH#IRU#EDWWHU\0SRZHUHG#HTXLSPHQW1

3RZHU#VRXUFH#IRU#SRUWDEOH#FRPPXQLFDWLRQ#DSSOLDQFHV/#FDPHUDV/#9&5V

3RZHU#VRXUFH#IRU#DSSOLDQFHV#ZKLFK#UHTXLUH#KLJKHU#YROWDJH#WKDQ#EDWWHU\#YROWDJH1

1

R1210N××2×

框图

VREF电路

L

X

5

V

LX

Iimiter

卜FF器

PWM /控制器

OSC

相比较。

-

+

-

+

-

+

2

V

OUT

5

EXT

芯片使能

4

GND

1

CE

选购指南

,Q#WKH#545431#6HULHV/#WKH#RXWSXW#YROWDJH/#WKH#RVFLOODWRU#IUHTXHQF\/#WKH#RSWLRQDO#IXQFWLRQ/#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>

545431;;;;0;;

↑ ↑↑ ↑

EF摹

CODE

D

E

6HWWLQJ#2XWSXW#9ROWDJH+9

287

,=

6WHSZLVH#VHWWLQJ#ZLWK#D#VWHS#RI#3149#LQ#WKH#UDQJH#RI#5159#WR#9139

“ HVLJQDWLRQ ＃ RI ＃ ' ULYHU

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

'HVLJQDWLRQ#RI#2VFLOODWRU#)UHTXHQF\

F

&=#433N+]

'=#4;3N+]

'HVLJQDWLRQ#RI#7DSLQJ#7\SH>

G

([1=#75/#7/#+UHIHU#WR#7DSLQJ#6SHFLILFDWLRQ,

75#LV#SUHVFULEHG#DV#D#VWDQGDUG1

目录

2

R1210N××2×

引脚配置

SOT-23-5

5

4

EXT

（标记侧）

CE

V

OUT

GND

NC

1

2

3

引脚说明

PIN号

4

5

6

7

8

& （

9

287

1&

*1'

(;7

符号

描述

&KLS#(QDEOH#3LQ

3LQ#IRU#2XWSXW#9ROWDJH

1R#&RQQHFWLRQ

*URXQG#3LQ

([WHUQDO#7UDQVLVWRU#'ULYH#3LQ

绝对最大额定值

符号

9

287

9

(;7

9

& （

,

(;7

3'

7RSW

7VWJ

项

9

287

#3LQ#2XWSXW#9ROWDJH

(;7#3LQ#2XWSXW#9ROWDJH

&(#3LQ#,QSXW#9ROWDJH

(;7#3LQ#,QGXFWRU#'ULYH#2XWSXW#&XU0

UHQW

3RZHU#'LVVLSDWLRQ

2SHUDWLQJ#7HPSHUDWXUH#5DQJH

6WRUDJH#7HPSHUDWXUH#5DQJH

等级

＆ LT ;

03169

287

.316

＆ LT ;

±73

583

073.;8

088.458

单位

9

9

9

P$

P:

?? &

?? &

3

R1210N××2×

电气特性

R1210NXX2

符号

9

287

9

,1

9

287

27

9

67$57

项

2XWSXW#9ROWDJH

0D[LPXP#,QSXW#9ROWDJH

6WHS0XS#2XWSXW#9ROWDJH

7HPSHUDWXUH#&RHIILFLHQW

6WDUW0XS#9ROWDJH

073°&≤#7RSW#≤#;8°&

9

,1

39→59

43

,

''5

6XSSO\#&XUUHQW#5

9

287

9

& （

9

6(7

.3189

48

， VWDQGE \\

6XSSO\#&XUUHQW#6+6WDQGE\,

9

287

9189#9

& （

39

9

287

9

6(7

×31<9#(;7#DW#QR#ORDG

5159#≤#9VHW#≤#5179

4;

56

53

58

58

63

63

68

68

73

55

318

68

78

73

83

83

93

93

:3

:3

;3

±433

31;

48

条件

9

,1

9

6(7

×319/#,

287

4P$

分钟。

× 31< ： 8

典型值。

+ 7RSW 58与放大器;，

马克斯。

×41358

;

单位

9

9

SSP2

?? &

9

$

+[[5&,

$

+[[5',

$

$

+[[5&,

$

+[[5',

$

+[[5&,

$

+[[5',

$

+[[5&,

$

+[[5',

$

+[[5&,

$

+[[5',

$

+[[5&,

$

+[[5',

9

287

9

6(7

×31<9#(;7#DW#QR#ORDG

5189#≤#9VHW#≤#6139

,

''4

6XSSO\#&XUUHQW4

9

287

9

6(7

×31<9#(;7#DW#QR#ORDG

6149#≤#9VHW#≤#61<9

9

287

9

6(7

×31<9#(;7#DW#QR#ORDG

79#≤#9VHW#≤#7179

9

287

9

6(7

×31<9#(;7#DW#QR#ORDG

7189#≤#9VHW#≤#71<9

4