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RN5RK201B-TR-F PDF预览

RN5RK201B-TR-F

更新时间： 2024-11-29 05:07:39
品牌 Logo 应用领域
理光 - RICOH 光电二极管
页数 文件大小 规格书
2页 143K
描述
Switching Regulator, 100kHz Switching Freq-Max, CMOS, PDSO5, ROHS COMPLIANT, SOT-23, 5 PIN

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中文翻译

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RN5RK201B-TR-F 数据手册

 浏览型号RN5RK201B-TR-F的Datasheet PDF文件第2页 
RN5RK Series  
VFM Step-up DC/DC Converter  
The RN5RK Series are low supply current, CMOS-based VFM step-up DC/DC converters. By simply using an inductor, a diode, and a  
capacitor as external components, a high-efficiency step-up DC/DC converter can be easily configured. RN5RK comes in two  
versions: xx1 version with an internal output transistor and xx2 version with an external transistor.  
FEATURES  
• Supply Current (IDD1)·······················Typ. 35μA (RN5RK301x, at continuous oscillation) • Output Voltage Accuracy ········ ± 2.5%  
• Supply Current (IDD2)·······················Typ. 2μA (VOUT=SET VOUT+0.5V)  
• Standby Current (Istandby) ·················Max. 0.5μA (In standby)  
• Input Voltage Range (VIN)···············Max. 8V  
• Start-up Voltage (Vstart)····················Max. 0.9V (xx1 Version)  
Max. 0.8V (xx2 Version)  
• Oscillator Frequency (fosc)······· 100kHz  
• Oscillator Duty Cycle (Duty) ··· 77% (A Version)  
55% (B Version)  
• Efficiency ································ Typ. 85% (RN5RK301B,  
VIN=2V, IOUT=10mA)  
• Output Voltage Range (VOUT)··········2.0V to 5.5V  
(internally fixed  
)
• Package·································· SOT-23-5  
BLOCK DIAGRAMS  
RN5RKxx1x  
(Internal output transistor type)  
RN5RKxx2A  
(External transistor type)  
Vref  
Vref  
Lx  
5
5
EXT  
VLX Limiter  
VOUT  
VOUT  
2
2
Buffer  
Buffer  
LxSW  
-
-
+
VFM Control  
VFM Control  
OSC 100kHz  
Chip Enable  
+
OSC 100kHz  
Chip Enable  
Error Amp.  
Error Amp.  
4
4
GND  
GND  
1
1
CE  
CE  
SELECTION GUIDE  
TYPICAL APPLICATIONS  
RN5RKxx1x  
SD  
RN5RKxx2A  
SD  
Package Quantity per Reel  
Part No.  
SOT-23-5  
3,000 pcs  
RN5RK  
.
xx∗$-TR-F  
.
xx  
.
:
Specify the output voltage within the range  
Rb  
5
EXT VOUT  
L
L
Tr  
2.0V (  
.
20  
.
) to 5.5V (  
.
55  
.
) in 0.1V steps.  
5
4
2
1
2
1
Lx  
V
OUT  
.
.
: Select from (  
.
1
.
) internal output transistor type or  
∗
(.  
2
.
) external transistor type.  
C
L
C
L
Cb  
V
IN  
V
IN  
$ : Select from (  
.
.
A
.
) duty cycle of 77% or (  
.
B
.
) duty cycle of 55%.  
.
GND CE  
4
GND CE  
(The RN5RKxx2B-TR-F does not exist.)  
L=100μH, SD=MA721, CL=47μF  
L=27μH, SD=RB111C, CL=47μF×2,  
Tr=2SD1628G, Rb=300Ω, Cb=0.01μF  
PACKAGE (Top View)  
TYPICAL CHARACTERISTICS  
RN5RK301x  
Efficiency vs. Output Current  
RN5RK302A  
Efficiency vs. Output Current  
SOT-23-5  
5
4
L=27μH  
L=100μH  
100  
100  
90  
80  
70  
60  
50  
90  
80  
70  
60  
50  
1
2
3
1
2
3
4
5
CE  
VOUT  
NC  
GND  
LX or EXT  
V
V
V
V
V
IN=2.0V  
IN=1.5V  
IN=1.3V  
IN=1.0V  
IN=0.9V  
V
V
V
V
V
IN=2.0V  
IN=1.5V  
IN=1.3V  
IN=1.0V  
IN=0.9V  
40  
30  
20  
10  
0
40  
30  
20  
10  
0
0
20 40 60 80 100 120 140 160  
Output Current IOUT (mA)  
0
200  
400  
600  
800  
Output Current IOUT (mA)  
APPLICATIONS  
• Power source for battery-powered equipment  
• Power source for hand-held communication equipment, cameras, and VCRs  
• Power source for equipment that requires a voltage higher than battery voltage  
No.EK-077-091101  
Step-up DC/DC Converter  
12

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