RN5RK482B-TL [RICOH]
SOT-23-5 VFM STEP-UP DC/DC CONVERTER; SOT- 23-5 VFM升压型DC / DC转换器
| 型号： | RN5RK482B-TL |
| 厂家： | 
RICOH ELECTRONICS DEVICES DIVISION |
| 描述： | SOT-23-5 VFM STEP-UP DC/DC CONVERTER |
| 文件： | 总22页 (文件大小：1487K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
SOT-23-5 VFM STEP-UP DC/DC CONVERTER
NO. EA-045-0204
51ꢀ5.[[ꢁ$ꢂ[[ꢁ%ꢂ[[ꢃ$ꢄ6(5,(6
OUTLINE
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FEATURES
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APPLICATIONS
• 3RZHUꢀVRXUFHꢀIRUꢀEDWWHU\ꢅSRZHUHGꢀHTXLSPHQWꢈ
• 3RZHUꢀVRXUFHꢀIRUꢀFDPHUDVꢉꢀFDPFRUGHUVꢉꢀ9&5VꢉꢀDQGꢀKDQGꢅKHOGꢀFRPPXQLFDWLRQꢀHTXLSPHQWꢈ
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1
RN5RKxx1A/xx1B/xx2A
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 RN5RKxxꢂ$ꢃxxꢂ%
SELECTION GUIDE
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51ꢁ5.ꢀ[[[[ꢅ[[ꢀ←3DUWꢀ1XPEHU
↑ ↑↑ ↑
D EF G
Code
Contents
6HWWLQJꢀ2XWSXWꢀ9ROWDJHꢀꢆ9287ꢇꢀꢊ
D
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2
RN5RKxx1A/xx1B/xx2A
PIN CONFIGURATION
SOT-23-5
5
4
(mark side)
1
2
3
PIN DESCRIPTION
Pin No.
Symbol
Pin description
ꢂ
ꢄ
ꢋ
ꢑ
ꢁ
&(
9287
1&
&KLSꢀ(QDEOHꢀ3LQ
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/;
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Pin No.
Symbol
&(
Pin description
&KLSꢀ(QDEOHꢀ3LQ
ꢂ
ꢄ
ꢋ
ꢑ
ꢁ
9287
1&
6WHSꢅXSꢀ2XWSXWꢀ0RQLWRULQJꢀ3LQꢉꢀ3RZHUꢀ6XSSO\ꢀꢆIRUꢀGHYLFHꢀLWVHOIꢇ
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3
RN5RKxx1A/xx1B/xx2A
ABSOLUTE MAXIMUM RATINGS
Symbol
9287
9/;
Item
6WHSꢅXSꢀ2XWSXWꢀ3LQꢀ9ROWDJH
/;ꢀ3LQꢀ9ROWDJH
Rating
Unit
9
ꢎ
ꢎ
9
9(;7
9&(
(;7ꢀ3LQꢀ9ROWDJH
²ꢌꢈꢋꢀWRꢀ9287ꢀꢒꢌꢈꢋ
²ꢌꢈꢋꢀWRꢀ9287ꢀꢒꢌꢈꢋ
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9
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ABSOLUTE MAXIMUM RATINGS
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4
RN5RKxx1A/xx1B/xx2A
ELECTRICAL CHARACTERISTICS
• RN5RKxx1A/xx1B
7RSW ꢄꢁ&
Symbol
9287
Item
2XWSXWꢀ9ROWDJH
Conditions
Min.
Typ.
Max.
×ꢂꢈꢌꢄꢁ
ꢏ
Unit
9
9,1 VHWꢀ9287×ꢌꢈꢓꢉꢀ,287 ꢂP$
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9287 ꢓꢈꢌ ꢉꢀ9&( ꢓꢈꢌ9
9287 ꢓꢈꢌ ꢉꢀ9&( ꢌꢈꢌ9
ꢄꢈꢌ9≤9287≤ꢄꢈꢑ9
ꢅꢌꢈꢁ
ꢅꢌꢈꢁ
ꢌꢈꢌ
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ꢄꢁ
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$
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ꢋꢌ
ꢁꢁ
5
RN5RKxx1A/xx1B/xx2A
Symbol
,''ꢂ
,''ꢂ
,''ꢂ
,''ꢂ
,''ꢂ
,/;
Item
Conditions
ꢋꢈꢌ9≤9287≤ꢋꢈꢑ9
Min.
Typ.
ꢋꢁ
Max.
ꢓꢌ
Unit
$
6XSSO\ꢀ&XUUHQWꢂꢀꢁꢃ
6XSSO\ꢀ&XUUHQWꢂꢀꢁꢃ
6XSSO\ꢀ&XUUHQWꢂꢀꢁꢃ
6XSSO\ꢀ&XUUHQWꢂꢀꢁꢃ
6XSSO\ꢀ&XUUHQWꢂꢀꢁꢃ
/[ꢀ6ZLWFKLQJꢀ&XUUHQW
/[ꢀ6ZLWFKLQJꢀ&XUUHQW
/[ꢀ6ZLWFKLQJꢀ&XUUHQW
/[ꢀ6ZLWFKLQJꢀ&XUUHQW
/[ꢀ6ZLWFKLQJꢀ&XUUHQW
/[ꢀ6ZLWFKLQJꢀ&XUUHQW
/[ꢀ6ZLWFKLQJꢀ&XUUHQW
ꢋꢈꢁ9≤9287≤ꢋꢈꢎ9
ꢑꢌ
ꢓꢁ
$
ꢑꢈꢌ9≤9287≤ꢑꢈꢑ9
ꢑꢁ
ꢐꢁ
$
ꢑꢈꢁ9≤9287≤ꢑꢈꢎ9
ꢁꢌ
ꢏꢌ
$
ꢁꢈꢌ9≤9287≤ꢁꢈꢁ9
ꢓꢌ
ꢎꢌ
$
ꢄꢈꢌ9≤9287≤ꢄꢈꢑ ꢉꢀ9/; ꢌꢈꢑ9
ꢄꢈꢁ9≤9287≤ꢄꢈꢎ ꢉꢀ9/; ꢌꢈꢑ9
ꢋꢈꢌ9≤9287≤ꢋꢈꢑ ꢉꢀ9/; ꢌꢈꢑ9
ꢋꢈꢁ9≤9287≤ꢋꢈꢎ ꢉꢀ9/; ꢌꢈꢑ9
ꢑꢈꢌ9≤9287≤ꢑꢈꢑ ꢉꢀ9/; ꢌꢈꢑ9
ꢑꢈꢁ9≤9287≤ꢑꢈꢎ ꢉꢀ9/; ꢌꢈꢑ9
ꢁꢈꢌ9≤9287≤ꢁꢈꢁ ꢉꢀ9/; ꢌꢈꢑ9
ꢏꢌ
P$
P$
P$
P$
P$
P$
P$
,/;
ꢂꢌꢌ
ꢂꢄꢌ
ꢂꢑꢌ
ꢂꢓꢌ
ꢂꢏꢌ
ꢄꢌꢌ
,/;
,/;
,/;
,/;
,/;
*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
RN5RKxx1A/xx1B/xx2A
• RN5RKxx2A
7RSW ꢄꢁ&
Symbol
9287
Item
2XWSXWꢀ9ROWDJH
Conditions
Min.
Typ.
Max.
×ꢂꢈꢌꢄꢁ
ꢏ
Unit
9
9,1 VHWꢀ9287×ꢌꢈꢓꢉꢀ,287 ꢂP$
×ꢌꢈꢎꢐꢁ
9,1
,QSXWꢀ9ROWDJH
9
Output Voltage Temperature
Coefficient
∆VOUTꢃ∆Topt
9VWDUW
ꢅꢑꢌ&≤7RSW≤ꢏꢁ&
9,1 ꢌ9→ꢄ9ꢁꢂ
ꢂꢌꢌ
ꢌꢈꢐ
SSPꢃ&
9
6WDUWꢅ8Sꢀ9ROWDJH
ꢌꢈꢏ
Start-Up Voltage Temperature -40°C≤Topt≤85°C
ꢅꢂꢈꢓ
P9ꢃ&
∆Vstart/∆Topt
ꢁꢂ
VIN=0V→2V
Coefficient
,''ꢃ
6XSSO\ꢀ&XUUHQWꢄ
6WDQGE\ꢀ&XUUHQW
9287 9&( VHWꢀ9287ꢒꢌꢈꢁ9
9287 ꢓ ꢉꢀ9&( ꢌ9
ꢄ
ꢁ
$
$
,VWDQE\
ꢌꢈꢁ
0D[LPXPꢀ2VFLOODWRUꢀ)UHꢅ
TXHQF\
ꢀRVF
∆1RVFꢃ∆Topt
'XW\
9287 9&( VHWꢀ9287×ꢌꢈꢎꢓ
ꢅꢑꢌ&≤7RSW≤ꢏꢁ&
ꢏꢌ
ꢂꢌꢌ
ꢌꢈꢑꢂ
ꢐꢐ
ꢂꢄꢌ
N+]
N+]ꢃ&
ꢍ
)UHTXHQF\ꢀ7HPSHUDWXUHꢀ&Rꢅ
HIILFLHQW
9287 9&( VHWꢀ9287×ꢌꢈꢎꢓꢉ
21ꢀꢆ9(;7ꢀ´+µꢀVLGHꢇ
2VFLOODWRUꢀ'XW\ꢀ&\FOH
&(ꢀ´+µꢀ,QSXWꢀ9ROWDJH
ꢐꢌ
ꢏꢁ
9287 9&( VHWꢀ9287×ꢌꢈꢎꢓꢉ
-XGJPHQWꢀLVꢀPDGHꢀE\ꢀWKHꢀ(;7
ZDYHIRUP
9&(+
ꢌꢈꢎ
9
9
9287 9&( VHWꢀ9287×ꢌꢈꢎꢓ
-XGJPHQWꢀLVꢀPDGHꢀE\ꢀWKHꢀ(;7
ZDYHIRUP
9&(/
&(ꢀ´/µꢀ,QSXWꢀ9ROWDJH
ꢌꢈꢋ
,&(+
,&(/
,''ꢂ
,''ꢂ
,''ꢂ
,''ꢂ
&(ꢀ´+µꢀ,QSXWꢀ&XUUHQW
&(ꢀ´/µꢀ,QSXWꢀ&XUUHQW
6XSSO\ꢀ&XUUHQWꢂ
9287 ꢓꢈꢌ ꢉꢀ9&( ꢓꢈꢌ9
ꢅꢌꢈꢁ
ꢅꢌꢈꢁ
ꢌꢈꢌ
ꢌꢈꢌ
ꢄꢌ
ꢄꢁ
ꢋꢌ
ꢋꢁ
ꢌꢈꢁ
ꢌꢈꢁ
ꢑꢌ
ꢁꢌ
ꢓꢌ
ꢐꢌ
$
$
$
$
$
$
9287 ꢓꢈꢌ ꢉꢀ9&( ꢌꢈꢌ9
ꢄꢈꢌ9≤9287≤ꢄꢈꢎ ꢉꢀ(;7ꢀQRꢀORDGꢁꢃ
ꢋꢈꢌ9≤9287≤ꢋꢈꢎ ꢉꢀ(;7ꢀQRꢀORDGꢁꢃ
ꢑꢈꢌ9≤9287≤ꢑꢈꢎ ꢉꢀ(;7ꢀQRꢀORDGꢁꢃ
ꢁꢈꢌ9≤9287≤ꢁꢈꢁ ꢉꢀ(;7ꢀQRꢀORDGꢁꢃ
6XSSO\ꢀ&XUUHQWꢂ
6XSSO\ꢀ&XUUHQWꢂ
6XSSO\ꢀ&XUUHQWꢂ
ꢄꢈꢌ9≤9287≤ꢄꢈꢎ ꢉ
9(;7 9287ꢅꢌꢈꢑ9
,(;7+
(;7ꢀ´+µꢀ2XWSXWꢀ9ROWDJH
(;7ꢀ´+µꢀ2XWSXWꢀ9ROWDJH
ꢅꢂꢈꢌ
ꢅꢂꢈꢁ
P$
P$
ꢋꢈꢌ9≤9287≤ꢋꢈꢎ ꢉ
9(;7 9287ꢅꢌꢈꢑ9
,(;7+
7
RN5RKxx1A/xx1B/xx2A
Symbol
Item
Conditions
ꢑꢈꢌ9≤9287≤ꢁꢈꢁ ꢉ
9(;7 9287ꢅꢌꢈꢑ9
Min.
Typ.
Max.
Unit
,(;7+
(;7ꢀ´+µꢀ2XWSXWꢀ9ROWDJH
ꢅꢄꢈꢌ
P$
,(;7+
,(;7+
,(;7+
(;7ꢀ´/µꢀ2XWSXWꢀ9ROWDJH
(;7ꢀ´/µꢀ2XWSXWꢀ9ROWDJH
(;7ꢀ´/µꢀ2XWSXWꢀ9ROWDJH
ꢄꢈꢌ9≤9287≤ꢄꢈꢎ ꢉꢀ9(;7 ꢌꢈꢑ9
ꢋꢈꢌ9≤9287≤ꢋꢈꢎ ꢉꢀ9(;7 ꢌꢈꢑ9
ꢑꢈꢌ9≤9287≤ꢁꢈꢁ ꢉꢀ9(;7 ꢌꢈꢑ9
ꢂꢈꢌ
ꢂꢈꢁ
ꢄꢈꢌ
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
RN5RKxx1A/xx1B/xx2A
TEST CIRCUITS
SBD
1kΩ
L
Lx
VOUT
Lx
VOUT
V
RL
A
CL
V
IN
CL
GND
CE
GND
CE
Test Circuit 1
Test Circuit 2
Lx
VOUT
CL
GND
CE
Oscilloscope
Test Circuit 3
*)
When VLXlim and ILX are measured, the 5Ω resistor is used. Otherwise 1kΩ is used.
&RPSRQHQWVꢀ,QGXFWRU ꢆ/ꢇ ꢊꢀꢂꢌꢌ+ꢉꢀꢄꢄꢌ+ꢀꢆ6XPLGDꢀ(OHFWULFꢀ&Rꢈꢉꢀ/WGꢔꢀ&'ꢅꢁꢑꢇ
'LRGH
ꢆ6%'ꢇ ꢊꢀ0$ꢐꢄꢂꢀꢆ0DWVXVKLWDꢀ(OHFWURQLFVꢀ&RUSRUDWLRQꢔꢀ6FKRWWN\ꢀ7\SHꢇ
ꢆ&/ꢇ ꢊꢀꢑꢐ)ꢀꢆ7DQWDOXPꢀ7\SHꢇ
&DSDFLWRU
8VLQJꢀWKHVHꢀWHVWꢀFLUFXLWVꢀFKDUDFWHULVWLFVꢀGDWDꢀKDVꢀEHHQꢀREWDLQHGꢀDVꢀVKRZQꢀRQꢀWKHꢀIROORZLQJꢀSDJHVꢈ
7HVWꢀ&LUFXLWꢀꢂ ꢊꢀ7\SLFDOꢀ&KDUDFWHULVWLFVꢀꢆꢂꢇꢅꢆꢐꢇ
7HVWꢀ&LUFXLWꢀꢄ ꢊꢀ7\SLFDOꢀ&KDUDFWHULVWLFVꢀꢆꢎꢇꢅꢆꢂꢂꢇ
7HVWꢀ&LUFXLWꢀꢋ ꢊꢀ7\SLFDOꢀ&KDUDFWHULVWLFVꢀꢆꢏꢇꢉꢀꢆꢂꢄꢇꢅꢆꢂꢓꢇ
9
RN5RKxx1A/xx1B/xx2A
SBD
Rb
L
Tr
EXT
VOUT
EXT
VOUT
V
A
C
L
Cb
V
IN
GND
CE
GND
CE
CL
Test Circuit 1
Test Circuit 2
100Ω
EXT
V
OUT
EXT
VOUT
Oscilloscope
CL
GND
CE
C
L
GND
CE
Oscilloscope
Test Circuit 3
&RPSRQHQWVꢀ,QGXFWRU ꢆ/ꢇ ꢊꢀꢄꢐ+ꢀꢆ6XPLGDꢀ(OHFWULFꢀ&Rꢈꢉꢀ/WGꢔꢀ&'ꢅꢂꢌꢑꢇ
Test Circuit 4
'LRGH
ꢆ6%'ꢇ ꢊꢀ5%ꢂꢂꢂ&ꢀꢆ5RKPꢀ&Rꢈꢉꢀ/WGꢔꢀ6FKRWWN\ꢀ7\SHꢇ
ꢆ&/ꢇ ꢊꢀꢑꢐ)×ꢄꢆ7DQWDOXPꢀ7\SHꢇ
ꢆ7Uꢇ ꢊꢀꢄ6'ꢂꢓꢄꢏ*
&DSDFLWRU
7UDQVLVWRU
%DVHꢀ5HVLVWRU
ꢆ5Eꢇ ꢊꢀꢋꢌꢌΩ %DVHꢀ&DSDFLWRUꢀꢆ&Eꢇꢊꢀꢌꢈꢌꢂ)
7KHꢀW\SLFDOꢀFKDUDFWHULVWLFVꢀZHUHꢀREWDLQHGꢀZLWKꢀXVLQJꢀWKHVHꢀWHVWꢀFLUFXLWVꢈ
7HVWꢀ&LUFXLWꢀꢂ ꢊꢀ7\SLFDOꢀ&KDUDFWHULVWLFVꢀꢆꢂꢇꢅꢆꢁꢇ
7HVWꢀ&LUFXLWꢀꢄ ꢊꢀ7\SLFDOꢀ&KDUDFWHULVWLFVꢀꢆꢏꢇꢅꢆꢂꢌꢇ
7HVWꢀ&LUFXLWꢀꢋ ꢊꢀ7\SLFDOꢀ&KDUDFWHULVWLFVꢀꢆꢂꢂꢇꢅꢆꢂꢑꢇ
7HVWꢀ&LUFXLWꢀꢑ ꢊꢀ7\SLFDOꢀ&KDUDFWHULVWLFVꢀꢆꢓꢇꢉꢀꢆꢐꢇ
10
RN5RKxx1A/xx1B/xx2A
TYPICAL CHARACTERISTICS
• RN5RKxx1A/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 OUT(mA)
0
0
0
20 40 60 80 100 120 140 160
Output Current OUT(mA)
I
I
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
4.0V
6
5
4
3
2
1
0
6
5
4
3
2
1
0
4.0V
2.0V
1.5V
3.0V
1.5V
2.0V
3.0V
V
IN=0.9V
V
IN=0.9V
50
100
150
200
50
100
150
200
Output Current
I
OUT(mA)
Output Current
I
OUT(mA)
11
RN5RKxx1A/xx1B/xx2A
RN5RK501B
RN5RK501B
L=100µH
L=220µH
4.0V
6
5
4
3
2
1
0
6
5
4
3
2
1
0
4.0V
3.0V
2.5V
3.0V
2.0V
2.0V
2.5V
V
IN=1.5V
V
IN=1.5V
0
50
100
150
200
0
50 150
100
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
V
IN=0.9V
V
1.3V
20 40 60 80 100 120 140 160
Output Current OUT(mA)
0
20 40 60 80 100 120 140 160
Output Current OUT(mA)
0
I
I
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
I
OUT(mA)
Output Current
IOUT(mA)
12
RN5RKxx1A/xx1B/xx2A
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
0
50
100
150
200
0
50
100
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
4.0V
2.5V
2.5V
3.0V
3.0V
V
IN=1.5V
V
IN=1.5V
0
50
100
150
200
0
50 150
100
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
20
20
V
IN=0.9V
V
IN=0.9V
20 40 60 80 100 120 140 160
Output Current OUT(mA)
0
0
0
20 40 60 80 100 120 140 160
Output Current OUT(mA)
0
I
I
13
RN5RKxx1A/xx1B/xx2A
RN5RK301B
RN5RK301B
L=100µH
L=220µH
45
40
35
30
25
20
15
10
5
45
40
35
30
25
20
15
10
5
2.0V
2.0V
1.0V 1.3V
1.5V
1.5V
1.3V
IN=1.0V
V
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
3.0V
2.0V
4.0V
4.0V
2.0V
1.5V
1.5V
IN=0.9V
50
Output Current
V
V
IN=0.9V
50
Output Current
0
0
100
150
200
100
150
200
IOUT(mA)
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
100
20
20
V
IN=1.5V
V
IN=1.5V
50
0
0
50
100
150
200
150
200
Output Current
IOUT(mA)
Output Current
IOUT(mA)
14
RN5RKxx1A/xx1B/xx2A
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
I
OUT(mA)
Output Current
I
OUT(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
I
OUT=30mA
IOUT=0mA
I
OUT=30
-25
mA
IOUT=10mA
-50
0
25
50
75
100
-50
-25
0
25
50
75
100
Temperature Topt( )
Temperature Topt( )
15
RN5RKxx1A/xx1B/xx2A
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
RN5RKxx1A/xx1B/xx2A
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
75
75
100
100
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
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
Temperature Topt( )
Temperature Topt( )
17
RN5RKxx1A/xx1B/xx2A
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
120
110
100
90
0.8
0.7
0.6
0.5
0.4
80
70
60
50
-50
-25
0
25
50
75
100
-50
-25
0
25
50
75
100
Temperature Topt( )
Temperature Topt( )
18
RN5RKxx1A/xx1B/xx2A
• RN5RKxx2A
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
1.5V
2.5
2.0
1.5
VIN=1.0V
1.0
0.5
0
1.5V
1.3V
V
IN=0.9V
1.0V
0
200
400
600
OUT(mA)
800
0
0
0
200
400
600
800
Output Current
I
Output Current
I
OUT(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
OUT(mA)
800
200
600
OUT(mA)
800
Output Current
I
Output Current
I
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
I
OUT(mA)
19
RN5RKxx1A/xx1B/xx2A
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
Vhold
0
50
100
150
200
0
50
100
150
200
Output Current
I
OUT(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
I
mA
OUT=50mA
I
OUT=50
m
A
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
RN5RKxx1A/xx1B/xx2A
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
75
75
100
100
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
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
Temperature Topt( )
Temperature Topt( )
21
RN5RKxx1A/xx1B/xx2A
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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