RN5RK301B-TR-FE [RICOH]
Switching Regulator, 120kHz Switching Freq-Max, CMOS, PDSO5, HALOGEN FREE AND ROHS COMPLIANT, SOT-23, 5 PIN;
| 型号： | RN5RK301B-TR-FE |
| 厂家： | 
RICOH ELECTRONICS DEVICES DIVISION |
| 描述： | Switching Regulator, 120kHz Switching Freq-Max, CMOS, PDSO5, HALOGEN FREE AND ROHS COMPLIANT, SOT-23, 5 PIN 转换器 |
| 文件： | 总23页 (文件大小：226K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
62705608#9)0#67(3083#'&2'&
&219(57(5
5185.××4$2××4%2××5$#6(5,(6
$33/,&$7,21#0$18$/
NO. EA-045-0006
SOT-23-5 VFM STEP-UP DC/DC CONVERTER
5185.××4$2××4%2××5$#6(5,(6
OUTLINE
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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#9ROWDJH#$FFXUDF\ 111111111111111111111111111111111111111111 “518(
• /RZ#5LSSOH#DQG#/RZ#1RLVH
• /RZ#6WDUW0XS#9ROWDJH1111111111111111111111111111111111111111111111111111111111 0$;1#31<9
• +LJK#(IILFLHQF\ 1111111111111111111111111111111111111111111111111111111111111111111 7<31#;3(
• ,QFOXGLQJ#D#'ULYHU#7UDQVLVWRU#ZLWK#/RZ#21#5HVLVWDQFH
• 7Z R #.LQGV#RI#'XW\#5DWLR1111111111111111111111111111111111111111111111111111 ::(#+××4$/#××5$,2#88(#+××4%,
• 2XWSXW#9ROWDJH 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#9ROWDJH 11111 7<31#“433SSP2ƒ&
• 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
RN5RK 1A/ 1B/ 2A
×× ×× ××
BLOCK DIAGRAM
Lx*
VOUT
Vref
5
5
V
LX Limiter
2
Buffer
-
VFM Control
OSC 100kHz
Chip Enable
+
EXT*
4
GND
1
CE
*)
LX pin: only for RN5RK××4$2××4%
SELECTION GUIDE
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5185.#××××0××#←3DUW#1XPEHU
↑ ↑↑ ↑
D EF G
Code
Contents
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D
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2
RN5RK 1A/ 1B/ 2A
×× ×× ××
PIN CONFIGURATION
SOT-23-5
5
4
(mark side)
1
2
3
PIN DESCRIPTION
Pin No.
Symbol
Pin description
4
5
6
7
8
&(
9287
1&
&KLS#(QDEOH#3LQ
6WHS0XS#2XWSXW#0RQLWRULQJ#3LQ/#3RZHU#6XSSO\#+IRU#GHYLFH#LWVHOI,
1R#&RQQHFWLRQ
*1'
/;
*URXQG#3LQ
6ZLWFKLQJ#3LQ#+1FK#2SHQ#'UDLQ,
Pin No.
Symbol
&(
Pin description
&KLS#(QDEOH#3LQ
4
5
6
7
8
9287
1&
6WHS0XS#2XWSXW#0RQLWRULQJ#3LQ/#3RZHU#6XSSO\#+IRU#GHYLFH#LWVHOI,
1R#&RQQHFWLRQ
*1'
(;7
*URXQG#3LQ
([WHUQDO#7U1#'ULYH#3LQ#+&026#2XWSXW,
3
RN5RK 1A/ 1B/ 2A
×× ×× ××
ABSOLUTE MAXIMUM RATINGS
Symbol
9287
9/;
Item
6WHS0XS#2XWSXW#3LQ#9ROWDJH
/;#3LQ#9ROWDJH
Rating
Unit
9
<
<
9
9(;7
9&(
(;7#3LQ#9ROWDJH
²316#WR#9287#.316
²316#WR#9287#.316
833
9
&(#3LQ#9ROWDJH
9
,/;
/[#3LQ#2XWSXW#&XUUHQW
(;7#3LQ#2XWSXW#&XUUHQW
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P$
P$
P:
ƒ&
,(;7
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583
7RSW
7VWJ
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6WRUDJH#7HPSHUDWXUH#5DQJH
²73#WR#.;8
²88#WR#.458
ƒ&
ABSOLUTE MAXIMUM RATINGS
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OXWH#PD[LPXP#UDWLQJV#PD\#FDXVH#GHJUDGDWLRQ#RU#SHUPDQHQW#GDPDJH#WR#WKH#GHYLFH1#7KHVH#DUH#VWUHVV#UDWLQJV#RQO\#DQG
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4
RN5RK 1A/ 1B/ 2A
×× ×× ××
ELECTRICAL CHARACTERISTICS
• RN5RK 1A/ 1B
7RSW 58ƒ&
Symbol
9287
Item
2XWSXW#9ROWDJH
Conditions
MIN.
TYP.
MAX.
Unit
9,1 VHW#9287×319/#,287 4P$
×31<:8
×41358
9
9
9,1
,QSXW#9ROWDJH
;
2XWSXW#9ROWDJH#7HPSHUDWXUH
∆92872∆7RSW
9VWDUW
073ƒ&≤7RSW≤;8ƒ&
9,1 39→59-4
“433
31:8
0419
SSP2ƒ&
9
&RHIILFLHQW
6WDUW08S#9ROWDJH
31<
6WDUW08S#9ROWDJH#7HPSHUD0
WXUH#&RHIILFLHQW
073ƒ&≤7RSW≤;8ƒ&
9,1 39→59-4
∆9VWDUW2∆7RSW
P92ƒ&
9KROG
9KROG
,''5
+ROG0RQ#9ROWDJH#+××4$,
+ROG0RQ#9ROWDJH#+××4%,
6XSSO\#&XUUHQW5
9,1 59→39-4
9,1 59→39-4
31:
31<
9
9
9287 9&( VHW#9287.3189
9287 99/#9&( 39
9287 9/; ;9
5
8
318
4
—$
—$
—$
,VWDQE\
,/;OHDN
6WDQGE\#&XUUHQW
/[#/HDNDJH#&XUUHQW
0D[LPXP#2VFLOODWRU#)UH0
;3
IRVF
∆IRVF2∆Topt
'XW\
9287 9&( VHW#9287×31<9
073ƒ&≤7RSW≤;8ƒ&
433
3174
::
453
N+]
TXHQF\
)UHTXHQF\#7HPSHUDWXUH#&R0
N+]2
HIILFLHQW
ƒ&
9287 9&( VHW#9287×31<9/#21
+9/;#´/µ#VLGH,
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2VFLOODWRU#'XW\#&\FOH#+××4%,
9/[#9ROWDJH#/LPLW
:3
7:
;8
96
(
(
9
9287 9&( VHW#9287×31<9/#21
+9/;#´/µ#VLGH,
'XW\
88
9287 9&( 41<89/#/[#6ZLWFK
9O[OLP
317
319
31;
21
9287 9&( VHW#9287×31<9/
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ZDYHIRUP
9&(+
&(#´+µ#,QSXW#9ROWDJH
&(#´/µ#,QSXW#9ROWDJH
31<
9
9
9287 9&( VHW#9287×31<9/
-XGJPHQW#LV#PDGH#E\#WKH#/[
ZDYHIRUP
9&(/
316
,&(+
,&(/
,''4
,''4
&(#´+µ#,QSXW#&XUUHQW
&(#´/µ#,QSXW#&XUUHQW
6XSSO\#&XUUHQW4#-5
6XSSO\#&XUUHQW4#-5
9287 9139/#9&( 9139
9287 9139/#9&( 3139
5139≤9287≤5179
0318
0318
3
3
318
318
83
—$
—$
—$
—$
58
63
5189≤9287≤51<9
88
5
RN5RK 1A/ 1B/ 2A
××
××
××
Symbol
,''4
,''4
,''4
,''4
,''4
,/;
Item
Conditions
6139≤9287≤6179
MIN.
TYP.
68
MAX.
93
Unit
—$
6XSSO\#&XUUHQW4#-5
6XSSO\#&XUUHQW4#-5
6189≤9287≤61<9
73
98
—$
6XSSO\#&XUUHQW4#-5
6XSSO\#&XUUHQW4#-5
6XSSO\#&XUUHQW4#-5
/[#6ZLWFKLQJ#&XUUHQW
/[#6ZLWFKLQJ#&XUUHQW
/[#6ZLWFKLQJ#&XUUHQW
/[#6ZLWFKLQJ#&XUUHQW
/[#6ZLWFKLQJ#&XUUHQW
/[#6ZLWFKLQJ#&XUUHQW
/[#6ZLWFKLQJ#&XUUHQW
7139≤9287≤7179
78
:8
—$
7189≤9287≤71<9
83
;3
—$
8139≤9287≤8189
93
<3
—$
5139≤9287≤5179/#9/; 3179
5189≤9287≤51<9/#9/; 3179
6139≤9287≤6179/#9/; 3179
6189≤9287≤61<9/#9/; 3179
7139≤9287≤7179/#9/; 3179
7189≤9287≤71<9/#9/; 3179
8139≤9287≤8189/#9/; 3179
;3
P$
P$
P$
P$
P$
P$
P$
,/;
433
453
473
493
4;3
533
,/;
,/;
,/;
,/;
,/;
*1)
*2)
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 ×0.96
6
RN5RK 1A/ 1B/ 2A
×× ×× ××
• RN5RK××2A
7RSW 58ƒ&
Symbol
9287
Item
2XWSXW#9ROWDJH
Conditions
MIN.
TYP.
MAX.
Unit
9,1 VHW#9287×319/#,287 4P$
×31<:8
×41358
9
9
9,1
,QSXW#9ROWDJH
;
Output Voltage Temperature
Coefficient
∆VOUT2∆Topt
9VWDUW
073ƒ&≤7RSW≤;8ƒ&
9,1 39→59-4
“433
SSP2ƒ&
9
6WDUW08S#9ROWDJH
31:
31;
Start-Up Voltage Temperature -40°C≤Topt≤85°C
0419
;3
P92ƒ&
∆Vstart/∆Topt
Coefficient
VIN=0V→2V*1
,''5
6XSSO\#&XUUHQW5
6WDQGE\#&XUUHQW
9287 9&( VHW#9287.3189
9287 99/#9&( 39
5
8
—$
—$
,VWDQE\
318
0D[LPXP#2VFLOODWRU#)UH0
)RVF
∆IRVF2∆Topt
'XW\
9287 9&( VHW#9287×31<9
073ƒ&≤7RSW≤;8ƒ&
433
3174
::
453
N+]
N+]2ƒ&
(
TXHQF\
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HIILFLHQW
9287 9&( VHW#9287×31<9/
21#+9(;7#´+µ#VLGH,
2VFLOODWRU#'XW\#&\FOH
:3
;8
9287 9&( VHW#9287×31<9/
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ZDYHIRUP
9&(+
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31<
9
9
9287 9&( VHW#9287×31<9
-XGJPHQW#LV#PDGH#E\#WKH#(;7
ZDYHIRUP
9&(/
&(#´/µ#,QSXW#9ROWDJH
316
,&(+
,&(/
,''4
,''4
,''4
,''4
&(#´+µ#,QSXW#&XUUHQW
&(#´/µ#,QSXW#&XUUHQW
6XSSO\#&XUUHQW4
9287 9139/#9&( 9139
0318
0318
3
318
318
73
83
93
:3
—$
—$
—$
—$
—$
—$
9287 9139/#9&( 3139
3
5139≤9287≤51<9/#(;7#QR#ORDG-5
6139≤9287≤61<9/#(;7#QR#ORDG-5
7139≤9287≤71<9/#(;7#QR#ORDG-5
8139≤9287≤8189/#(;7#QR#ORDG-5
53
58
63
68
6XSSO\#&XUUHQW4
6XSSO\#&XUUHQW4
6XSSO\#&XUUHQW4
5139≤9287≤51<9/
9(;7 928703179
P$
,(;7+
(;7#´+µ#2XWSXW#9ROWDJH
(;7#´+µ#2XWSXW#9ROWDJH
0413
0418
6139≤9287≤61<9/
9(;7 928703179
,(;7+
P$
7
RN5RK 1A/ 1B/ 2A
××
××
××
Symbol
Item
Conditions
7139≤9287≤8189/
MIN.
TYP.
MAX.
Unit
,(;7+
(;7#´+µ#2XWSXW#9ROWDJH
0513
P$
9(;7 928703179
,(;7+
,(;7+
,(;7+
(;7#´/µ#2XWSXW#9ROWDJH
(;7#´/µ#2XWSXW#9ROWDJH
(;7#´/µ#2XWSXW#9ROWDJH
5139≤9287≤51<9/#9(;7 3179
6139≤9287≤61<9/#9(;7 3179
7139≤9287≤8189/#9(;7 3179
413
418
513
P$
P$
P$
*1)
*2)
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 ×0.96
8
RN5RK 1A/ 1B/ 2A
×× ×× ××
TEST CIRCUITS
SBD
1KΩ
Lx
V
OUT
L
A
Lx
V
OUT
V
CL
GND
CE
RL
C
L
V
IN
GND
CE
Test Circuit 1
Test Circuit 2
Lx
VOUT
CL
GND
CE
Osilloscope
Test Circuit 3
*)
When VLXlim and ILX are measured, the 5Ωresistor is used. Otherwise 1kΩis used.
&RPSRQHQWV#,QGXFWRU +/,
=#433—+/#553—+#+6XPLGD#(OHFWULF#&R1/#/WG>#&'087,
'LRGH
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&DSDFLWRU
8VLQJ#WKHVH#WHVW#FLUFXLWV#FKDUDFWHULVWLFV#GDWD#KDV#EHHQ#REWDLQHG#DV#VKRZQ#RQ#WKH#IROORZLQJ#SDJHV1
7HVW#&LUFXLW#4 =#7<3,&$/#&+$5$&7(5,67,&6#+4,0+:,
7HVW#&LUFXLW#5 =#7<3,&$/#&+$5$&7(5,67,&6#+<,0+44,
7HVW#&LUFXLW#6 =#7<3,&$/#&+$5$&7(5,67,&6#+;,/#+45,0+49,
9
RN5RK 1A/ 1B/ 2A
×× ×× ××
SBD
EXT
VOUT
Rb
L
Tr
A
EXT
VOUT
V
GND
CE
CL
CL
Cb
V
IN
GND
CE
Test Circuit 1
Test Circuit 2
100Ω
EXT
VOUT
EXT
VOUT
Osilloscope
CL
CL
GND
CE
GND
CE
Osilloscope
Test Circuit 3
Test Circuit 4
&RPSRQHQWV#,QGXFWRU +/,
=#5:—+#+6XPLGD#(OHFWULF#&R1/#/WG>#&'0437,
'LRGH
+6%', =#5%444&#+52+0#&R1/#/WG>#6FKRWWN\#7\SH,
+&/, =#7:—)×5+7DQWDOXPH#7\SH,
+7U, =#56'495;*
&DSDFLWRU
7UDQVLVWRU
%DVH#5HVLVWRU
+5E, =#633Ω%DVH#&DSDFLWRU#+&E,=#3134—)
8VLQJ#WKHVH#WHVW#FLUFXLWV#FKDUDFWHULVWLFV#GDWD#KDV#EHHQ#REWDLQHG#DV#VKRZQ#RQ#WKH#IROORZLQJ#SDJHV1
7HVW#&LUFXLW#4 =#7<3,&$/#&+$5$&7(5,67,&6#+4,0+8,
7HVW#&LUFXLW#5 =#7<3,&$/#&+$5$&7(5,67,&6#+;,0+43,
7HVW#&LUFXLW#6 =#7<3,&$/#&+$5$&7(5,67,&6#+44,0+47,
7HVW#&LUFXLW#7 =#7<3,&$/#&+$5$&7(5,67,&6#+9,/#+:,
10
RN5RK 1A/ 1B/ 2A
××
××
××
TYPICAL CHARACTERISTICS
• RN5RK××1A/B
1) Output Voltage vs. Output Current (Topt=25°C)
RN5RK301A
RN5RK301A
L=100µH
L=220µH
3.5
3.5
3.0
2.5
2.0
1.5
1.0
0.5
0.0
3.0
2.0V
2.5
1.3V
1.0V
1.5V
1.3V
2.0V
1.0V
2.0
1.5
1.0
0.5
0.0
V
IN=0.9V
V
IN=0.9V
1.5V
0
0
0
20 40 60 80 100 120 140 160
Output Current IOUT(mA)
0
0
0
20 40 60 80 100 120 140 160
Output Current IOUT(mA)
RN5RK301B
RN5RK301B
L=100µH
L=220µH
3.5
3.0
2.5
2.0
1.5
1.0
0.5
0.0
3.5
3.0
2.5
2.0
1.5
1.0
0.5
0.0
2.0V
2.0V
1.5V
1.3V
1.3V
1.5V
V
IN=1.0V
VIN=1.0V
10
20
30
40
50
10
20
30
40
50
Output Current IOUT(mA)
Output Current IOUT(mA)
RN5RK501A
RN5RK501A
L=220µH
L=100µH
6
5
4
3
2
1
0
6
5
4
3
2
1
0
4.0V
4.0V
3.0V
2.0V
1.5V
1.5V
2.0V
3.0V
V
IN=0.9V
V
IN=0.9V
50
100
150
200
50
100
150
200
Output Current IOUT(mA)
Output Current IOUT(mA)
11
RN5RK 1A/ 1B/ 2A
××
××
××
RN5RK501B
RN5RK501B
L=100µH
L=220µH
4.0V
6
6
5
4
3
2
1
0
4.0V
5
4
3
2
1
0
3.0V
2.5V
3.0V
2.0V
2.0V
IN=1.5V
2.5V
V
IN=1.5V
V
0
50
100
150
200
0
50
100
150
200
Output Current IOUT(mA)
Output Current IOUT(mA)
2) Efficiency vs. Output Current (Topt=25°C)
RN5RK301A
RN5RK301A
L=220µH
L=100µH
100
90
80
70
60
50
40
100
90
80
70
60
50
40
2.0V
2.0V
1.0V
1.5V
1.3V
1.5V
1.0V
IN=0.9V
VIN=0.9V
V
1.3V
0
20 40 60 80 100 120 140 160
Output Current IOUT(mA)
0
20 40 60 80 100 120 140 160
Output Current IOUT(mA)
RN5RK301B
RN5RK301B
L=100µH
L=220µH
100
90
80
70
60
50
40
100
90
80
70
60
50
2.0V
1.5V
1.3V
IN=1.0V
1.3V
1.5V
2.0V
V
V
IN=1.0V
0
10
20
30
40
50
0
10
20
30
40
50
Output Current IOUT(mA)
Output Current IOUT(mA)
12
RN5RK 1A/ 1B/ 2A
××
××
××
RN5RK501A
RN5RK501A
L=100µH
L=220µH
100
90
80
70
60
50
40
100
90
80
70
60
50
40
4.0V
4.0V
3.0V
2.0V
1.5V
3.0V
V
IN=0.9V
1.5V
V
IN=0.9V
2.0V
100
0
50
100
150
200
0
50
150
200
Output Current IOUT(mA)
Output Current IOUT(mA)
RN5RK501B
RN5RK501B
L=100µH
L=220µH
100
90
80
70
60
50
40
100
90
80
70
60
50
40
4.0V
2.0V
2.0V
IN=1.5V
4.0V
3.0V
2.5V
2.5V
3.0V
V
V
IN=1.5V
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=25°C)
RN5RK301A
RN5RK301A
L=100 µH
L=220µH
140
160
140
120
100
80
1.5V
120
100
1.3V
2.0V
80
2.0V
1.5V
1.3V
60
60
40
40
1.0V
1.0V
IN=0.9V
20
20
V
IN=0.9V
V
0
0
0
20 40 60 80 100 120 140 160
Output Current IOUT(mA)
0
20 40 60 80 100 120 140 160
Output Current IOUT(mA)
13
RN5RK 1A/ 1B/ 2A
××
××
××
RN5RK301B
RN5RK301B
L=100µH
L=220µH
45
45
40
35
30
25
20
15
10
5
2.0V
40
35
30
25
20
15
10
5
2.0V
1.0V 1.3V
1.5V
1.3V
1.5V
V
IN=1.0V
0
0
0
0
0
10
20
30
40
50
0
0
0
10
20
30
40
50
Output Current IOUT(mA)
Output Current IOUT(mA)
RN5RK501A
RN5RK501A
L=100µH
L=220µH
200
150
100
50
200
150
100
50
3.0V
2.0V
3.0V
4.0V
4.0V
2.0V
1.5V
1.5V
V
IN=0.9V
V
IN=0.9V
0
0
50
100
150
200
50
100
150
200
Output Current IOUT(mA)
Output Current IOUT(mA)
RN5RK501B
RN5RK501B
L=100µH
L=220µH
140
120
100
80
140
120
100
80
3.0V
3.0V
4.0V
4.0V
60
60
2.0V
40
40
2.5V
2.5V
20
20
V
IN=1.5V
V
IN=1.5V
0
0
50
100
150
200
50
100
150
200
Output Current IOUT(mA)
Output Current IOUT(mA)
14
RN5RK 1A/ 1B/ 2A
××
××
××
4) Start-up/Hold-on Voltage vs. Output Current (Topt=25°C)
RN5RK301A
RN5RK501A
L=100µH
L=100µH
1.4
1.4
1.2
1.0
0.8
0.6
0.4
0.2
0.0
1.2
1.0
Vstart
Vstart
0.8
0.6
Vhold
0.4
Vhold
0.2
0.0
0
5
10
15
0
5
10
15
Output Current IOUT(mA)
Output Current IOUT(mA)
RN5RK301B
RN5RK501B
L=100µH
L=100µH
2.0
1.8
1.6
1.4
1.2
1.0
0.8
0.6
0.4
0.2
0.0
2.0
1.8
1.6
1.4
1.2
1.0
0.8
0.6
0.4
0.2
0.0
Vstart
Vstart
Vhold
Vhold
0
5
10
15
0
5
10
15
Output Current IOUT(mA)
Output Current IOUT(mA)
5) Output Voltage vs. Temperature
RN5RK301A
RN5RK501A
VIN=3.0V,L=100µH
V
IN=1.5V,L=100µH
5.10
3.10
3.05
3.00
2.95
2.90
5.05
5.00
4.95
4.90
I
OUT=0
mA
I
OUT=10mA
IOUT=30mA
IOUT=0mA
I
OUT=30
mA
IOUT=10mA
-50
-25
0
25
50
75
100
-50
-25
0
25
50
75
100
Temperature Topt(
)
Temperature Topt( )
15
RN5RK 1A/ 1B/ 2A
×× ×× ××
6) Start-up Voltage vs. Temperature
RN5RK501A
RN5RK501B
L=100µH
L=100 µH
1
0.8
0.6
0.4
0.2
0
1
0.8
0.6
0.4
0.2
0
-50
-25
0
25
50
75
100
-50
-25
0
25
50
75
100
Temperature Topt(
)
Temperature Topt(
)
7) Hold-on Voltage vs. Temperature
RN5RK501A
RN5RK501B
L=100µH
L=100µH
1
1
0.8
0.6
0.4
0.2
0
0.8
0.6
0.4
0.2
0
-50
-25
0
25
50
75
100
-50
-25
0
25
50
75
100
Temperature Topt(
)
Temperature Topt( )
8) Lx Switching Current vs. Temperature
RN5RK301A
RN5RK501A
500
500
400
300
200
100
0
400
300
200
100
0
-50
-25
0
25
50
75
100
-50
-25
0
25
50
75
100
Temperature Topt(
)
Temperature Topt(
)
16
RN5RK 1A/ 1B/ 2A
××
××
××
9) Supply Current 1 vs. Temperature
RN5RK301A
RN5RK501A
50
80
70
60
50
40
30
40
30
20
10
-50
-25
0
25
50
75
75
75
100
100
100
-50
-25
0
25
50
75
100
Temperature Topt(
)
Temperature Topt(
)
)
)
10) Supply Current 2 vs. Temperature
11) Standby Current 3 vs. Temperature
RN5RK301A
RN5RK301A
5
1
4
3
2
1
0
0.8
0.6
0.4
0.2
0
-50
-25
0
25
50
-50
-25
0
25
50
75
100
Temperature Topt(
)
Temperature Topt(
12) Oscillator Duty Cycle vs. Temperature
RN5RK301A
RN5RK301B
85
60
58
56
54
52
50
80
75
70
-50
-25
0
25
50
-50
-25
0
25
50
75
100
Temperature Topt(
)
Temperature Topt(
17
RN5RK 1A/ 1B/ 2A
×× ×× ××
13) CE “H” Input Voltage vs. Temperature
14) CE “L” Input Voltage vs. Temperature
RN5RK301A
RN5RK301A
1
1
0.8
0.6
0.4
0.2
0
0.8
0.6
0.4
0.2
0
-50
-25
0
25
50
75
100
-50
-25
0
25
50
75
100
Temperature Topt(
)
Temperature Topt(
)
15) Maximum Oscillator Frequency vs. Temperature
16) VLX Voltage Limit vs. Temperature
RN5RK301A
RN5RK301A
0.8
120
110
100
90
0.7
0.6
0.5
0.4
80
70
60
-50
-25
0
25
50
75
100
50
-50
-25
0
25
50
75
100
Temperature Topt(
)
Temperature Topt(
)
18
RN5RK 1A/ 1B/ 2A
××
××
××
• RN5RK××2A
1) Output Voltage vs. Output Current (Topt=25°C)
RN5RK302A
RN5RK502A
L=27µH
L=27µH
3.5
6.0
5.0
4.0
3.0
2.0
1.0
0.0
3.0
2.0V
3.0V
2.0V
2.5
2.0
1.5
1.5V
VIN=1.0V
1.0
0.5
0
1.5V
1.3V
V
IN=0.9V
1.0V
0
200
400
600
800
0
0
0
200
400
600
800
Output Current IOUT(mA)
Output Current IOUT(mA)
2) Efficiency vs. Output Current (Topt=25°C)
RN5RK302A
RN5RK502A
L=27µH
L=27µH
100
90
80
70
60
50
40
100
90
80
70
60
50
40
30
3.0V
2.0V
2.0V
V
IN=1.0V
1.5V
1.5V
400
1.3V
400
1.0V
V
IN=0.9V
0
200
600
800
200
600
800
Output Current IOUT(mA)
Output Current IOUT(mA)
3) Ripple Voltage vs. Output Current (Topt=25°C)
RN5RK302A
RN5RK502A
L=27µH
L=27µH
250
300
250
200
150
100
50
2.0V
2.0V
1.5V
1.3V
3.0V
200
150
100
50
1.5V
1.0V
V
IN=1.0V
V
IN=0.9V
0
0
0
200
400
600
800
200
400
600
800
Output Current IOUT(mA)
Output Current IOUT(mA)
19
RN5RK 1A/ 1B/ 2A
×× ×× ××
4) Start-up/Hold-on Voltage vs. Output Current (Topt=25°C)
RN5RK302A
RN5RK502A
L=27µH
L=27µH
2.0
2.4
2.2
2.0
1.8
1.6
1.4
1.2
1.0
0.8
0.6
0.4
0.2
0.0
1.8
1.6
1.4
1.2
Vstart,Vhold
V
start
1.0
0.8
0.6
0.4
0.2
0.0
V
hold
0
50
100
150
200
0
50
100
150
200
Output Current IOUT(mA)
Output Current IOUT(mA)
5) Output Voltage vs. Temperature
RN5RK302A
RN5RK502A
V
IN=1.2V,L=27µH
V
IN=3.0V,L=27µH
3.10
5.10
5.05
5.00
4.95
4.90
3.05
I
OUT=0mA
I
OUT=0mA
3.00
2.95
2.90
2.85
2.80
I
OUT=100
mA
OUT=50mA
I
OUT=50
m
A
I
I
OUT=100
mA
-50
-25
0
25
50
75
100
-50
-25
0
25
50
75
100
Temperature Topt(
)
Temperature Topt(
)
6) EXT “H” Output Current vs. Temperature
RN5RK302A
RN5RK502A
10
10
9
8
7
6
5
4
3
2
1
0
9
8
7
6
5
4
3
2
1
0
-50
-25
0
25
50
75
100
-50
-25
0
25
50
75
100
Temperature Topt(
)
Temperature Topt(
)
20
RN5RK 1A/ 1B/ 2A
××
××
××
7) EXT “L” Output Current vs. Temperature
RN5RK302A
RN5RK502A
20
20
18
16
14
12
10
8
18
16
14
12
10
8
6
6
4
4
2
2
0
0
-50
-25
0
25
50
75
75
75
100
100
100
-50
-25
0
25
50
75
100
Temperature Topt(
)
)
)
Temperature Topt(
)
)
)
8) Supply Current 1 vs. Temperature
RN5RK302A
RN5RK502A
50
50
40
30
20
10
0
40
30
20
10
0
-50
-25
0
25
50
-50
-25
0
25
50
75
100
Temperature Topt(
Temperature Topt(
9) Supply Current 2 vs. Temperature
10) Standby Current vs. Temperature
RN5RK302A
RN5RK302A
5
1
4
3
2
1
0
0.8
0.6
0.4
0.2
0
-50
-25
0
25
50
-50
-25
0
25
50
75
100
Temperature Topt(
Temperature Topt(
21
RN5RK 1A/ 1B/ 2A
×× ×× ××
11) Oscillator Duty Cycle vs. Temperature
12) Maximum Oscillator Frequency vs. Temperature
RN5RK302A
RN5RK302A
85
120
110
100
90
80
75
70
80
70
60
50
-50
-50
-25
0
25
50
75
100
-25
0
25
50
75
100
Temperature Topt(
)
Temperature Topt( )
13) CE “H” Input Voltage vs. Temperature
14) CE “L” Input Voltage vs. Temperature
RN5RK302A
RN5RK302A
1
1
0.8
0.6
0.4
0.2
0
0.8
0.6
0.4
0.2
0
-50
-25
0
25
50
75
100
-50
-25
0
25
50
75
100
Temperature Topt( )
Temperature Topt(
)
22
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