RICOH R5102V001A Datasheet
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7LPHU
584359#6(5,(6
$33/,&$7,21#0$18$/
NO. EA-072-0006
LDO Regulators with a Watchdog Timer
584359#6(5,(6
OUTLINE
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XOWUD#ORZ#VXSSO\#FXUUHQW/#955/#DQG#D#ZDWFKGRJ#WLPHU1
7KXV/#WKH#584359#6HULHV#KDYH#WKH#LQWHJUDWHG#IXQFWLRQ#RI#D#SRZHU#VRXUFH#IRU#D#V\VWHP#DQG#D#V\VWHP#VXSHUYLVRU1
2QH#RI#WKH#EXLOW0LQ#YROWDJH#UHJXODWRUV#LV#D#/'2#W\SH#UHJXODWRU/#954/#XVHG#ZLWK#DQ#H[WHUQDO#GULYHU#WUDQVLVWRU1
954#KDV#H[FHOOHQW#HOHFWULFDO#FKDUDFWHULVWLFV#RI#KLJK#ULSSOH#UHMHFWLRQ#UDWH/#KLJK#RXWSXW#YROWDJH#DFFXUDF\#DQG#ORZ#VXS0
SO\#FXUUHQW1#954#LV#DSSURSULDWH#IRU#WKH#FRQGLWLRQ#WKDW#WKH#YROWDJH#GLIIHUHQFH#EHWZHHQ#LQSXW#DQG#RXWSXW#LV#VPDOO#DQG#RXW0
SXW#FXUUHQW#LV#ZLWKLQ#VHYHUDO#KXQGUHGV#P$1
7KH#RXWSXW#YROWDJH#RI#UHJXODWRUV#FDQ#EH#VHW#LQWHUQDOO\#DQG#LQGLYLGXDOO\#ZLWK#KLJK#DFFXUDF\#IRU#HDFK#,&#E\#ODVHU0WULP1
)XUWKHUPRUH/#ZKHQ# D# V\VWHP# ZRUNV#LQFRUUHFWO\/# WKH# ZDWFKGRJ#WLPHU# FKHFNV#RYHU#PLFURSURFHVVRU#DQG# JHQHUDWHV# D
UHVHW#VLJQDO#LQWHUPLWWHQWO\#WR#SUHYHQW#D#ZKROH#V\VWHP#IURP#EHLQJ#PDOIXQFWLRQ1
7KH# WLPH# SHULRG#IRU#ZDWFKLQJ# DQG#KROGLQJ#D# UHVHW# VLJQDO#RI# WKH# ZDWFKGRJ#WLPHU# FDQ# DOVR# EH# VHW# LQGLYLGXDOO\# E\# DQ
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7:
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FEATURES
• %XLOW0LQ#D#ZDWFKGRJ#WLPHU
• 7LPH #SHULRG#IRU#PRQLWRULQJ#DQG#JHQHUDWLQJ#D#UHVHW#VLJQDO#RI#WKH#ZDWFKGRJ#WLPHU#FDQ#EH#VHW#E\#DQ#H[WHUQDO#FDSDFLWRU
• 5HJXODWRUV#FDQ#EH#VWRSSHG#LQGLYLGXDOO\#E\#
• /RZ#VXSSO\#FXUUHQW 111111111111111111111111111111111111111111111111111111+2SHUDWLQJ#0RGH,#7<31#5;—$#+954,/#7<31#8µ$#+955,/#7<31#6—$
• 7KH#RXWSXW#YROWDJH#RI#954#DQG#955#FDQ#EH#VHW#LQGLYLGXDOO\#IRU#HDFK#,&#E\#ODVHU#WULP
• +LJK#$FFXUDF\#RI#2XWSXW#9R O W D J H 11111111111111111111111111111111“513(
• 7LPH#SHULRG#IRU#V\VWHP#PRQLWRULQJ#DQG#UHVHW#FDQ#EH#VHW#E\#DQ#H[WHUQDO#FDSDFLWRU
• 2XWSXW#&XUUHQW 11111111111111111111111111111111111111111111111111111111111117<31#4$#+954,/#0,11#63P$#+955,#+DW#9
• 6PDOO#3DFNDJH1111111111111111111111111111111111111111111111111111111111111116623043#+318PP#SLWFK,#5HIHU#WR#3DFNDJH#'LPHQVLRQV
&(4
#SLQ#DQG#
+:'7,#+6WDQGE\#0RGH,#7<31#314—$#+954,/#7<31#314—$#+955,
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287
49,
APPLICATION
• 3RZHU#VRXUFH#IRU#*60
1
R5102V
BLOCK DIAGRAMS
DD
SSOP10
1V
10 GND
OUT2
OUT1
PIN CONFIGURATION
2R
3EXT
4R
5SCK
Voltage
Regulator2
Voltage
Regulator1
10 6
GND
VDD
CE1
ROUT2
748
CE2
EXT
CTW
OUT1
R
Watchdog
Timer
ESET
R
SCK
9 CE1
8 CE2
7 CTW
6R
ESET
PIN DESCRIPTION
Symbol Description
''
9
2875
5
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2874
5
6&. &ORFN#,QSXW#3LQ
5(6(7
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&(5
&(4
*1' *URXQG#3LQ
3RZHU#6XSSO\#3LQ
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2XWSXW#3LQ#IRU#9R O W D J H #5HJXODWRU#4
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&RQWURO#6ZLWFK#3LQ#IRU#9R O W D J H #5HJXODWRU#4#+´/µ#$FWLYH,
1925
3
2
ABSOLUTE MAXIMUM RATINGS
R5102V
7R S W 58°&/#9
66
39
Symbol Item Input Voltage Rating Unit
,1
5
5
9
9
9
9
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&(5
6&.
2874
2875
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2874
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2875
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66
9
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66
9
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9
9
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