RN5RY211C-TR [RICOH]
Switching Controller, Voltage-mode, 0.05A, 180kHz Switching Freq-Max, CMOS, PDSO5, MINI, PLASTIC, SOT-23, 5 PIN;
| 型号： | RN5RY211C-TR |
| 厂家： | 
RICOH ELECTRONICS DEVICES DIVISION |
| 描述： | Switching Controller, Voltage-mode, 0.05A, 180kHz Switching Freq-Max, CMOS, PDSO5, MINI, PLASTIC, SOT-23, 5 PIN 开关 光电二极管 |
| 文件： | 总13页 (文件大小：567K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
VFM STEP-UP DC/DC
CONVERTER CONTROLLER
NO. EA-030-130502
RN5RYxx1 SERIES
OUTLINE
The RN5RYxx1 Series are CMOS-based VFM Control ICs for step-up DC/DC converter with an external dri-
ver transistor featuring high output voltage accuracy and low supply current. Each of the RN5RYxx1 Series ICs
consists of a voltage reference unit, an error amplifier, an oscillator, a VFM control circuit and feed back resistors.
A low ripple, high efficiency step-up DC/DC converter can be composed of the RN5RYxx1 Series with only an
inductor, a diode, a capacitor, and a drive transistor.
Since the package for these ICs is SOT-23-5( Mini-mold)package, high density mounting of the ICs on boards
is possible.
FEATURES
..................................................................................
..................................................................................
...........................
•
•
•
•
•
•
Low Supply Current
Low Standby Current
Typ. 3µA
Typ. 0.6µA
Low Temperature-Drift Coefficient of Output Voltage
Typ. 50ppm / ꢀC
2.5ꢁ
...................................................................
High Accuracy Output Voltage
Low Oscillation Start-up Voltage
...............................................................
Max. 0.8V
.............................................................................................
Small Package
SOT-23-5(Mini-Mold)
APPLICATIONS
•
•
Power source for battery-powered instruments.
Power source for cameras, VCRs, camcorders, pagers, and other hand-held communication instruments.
BLOCK DIAGRAM
VOUT
CE
2
5
3
OSC
EXT
–
+
Output
Buffer
Vref
GND
1
1
RN5RYxx1
SELECTION GUIDE
In the RN5RYxx1 Series, the output voltage, the version and the taping type for the ICs can be selected at
the user's request. The selection can be made by designating the part number as shown below :
←
RN5RYxxxx – xx
Part Number
↑ ↑↑
↑
a bc
d
Code
Contents
OUT
Designation of Output Voltage (V
)
a
b
OUT
V
can be designated within the range of 2.0 to 6.0V
1
Designation of Packing Type:
A: Taping
c
C: Antistatic bag for samples
Designation of Taping Type:
Ex. SOT-23-5: TR, TL
(refer to Taping Specification)
“TR” is prescribed as a standard
d
For example, the product with Output Voltage 2.0V, Taping Type TR, is designated by Part Number
RN5RY201A–TR.
2
RN5RYxx1
PIN CONFIGURATION
•
SOT-23-5
5
4
(mark side)
1
2
3
PIN DESCRIPTION
Pin No.
Symbol
GND
VOUT
EXT
NC
Description
1
2
3
4
5
Ground Pin
Output Pin
External Transistor Drive Pin(CMOS Output)
No Connection
CE
Chip Enable Pin
3
RN5RYxx1
ABSOLUTE MAXIMUM RATINGS
Unit
V
Symbol
VIN
Item
Ratings
+12
Input Voltage
VCE
CE Pin Input Voltage
EXT Pin Output Voltage
EXT Pin Output Current
Power Dissipation
–0.3 to VOUT+0.3
–0.3 to VOUT+0.3
50
V
VEXT
IEXT
PD
V
mA
mW
ꢀC
150
Topt
Tstg
Tsolder
Operating Temperature
Storage temperature
–30 to +85
–55 to +125
260ꢀC, 10s
ꢀC
Lead Temperature(Soldering)
ABSOLUTE MAXIMUM RATINGS
Absolute Maximum ratings are threshold limit values that must not be exceeded even for an instant under any
conditions. Moreover, such values for any two items must not be reached simultaneously. Operation above
these absolute maximum ratings may cause degradation or permanent damage to the device. These are stress
ratings only and do not necessarily imply functional operation below these limits.
4
RN5RYxx1
ELECTRICAL CHARACTERISTICS
• RN5RY301
Topt=25ꢀC
Symbol
VOUT
VIN
Item
Conditions
Min.
Typ.
Max.
3.075
10
Unit
V
Output Voltage
VIN=1.5V,IOUT=10mA
2.925
3.000
Input Voltage
V
µA
µA
µA
IDD1
Supply Current 1
EXT No load, VOUT=3.15V, Test circuits1
EXT No load, VOUT=2.85V, Test circuits1
VOUT=1.5V, Test circuits2
3
5
IDD2
Supply Current 2
25
50
Istandby
fosc
Standby Current
0.6
180
75
1.5
Maximum Oscillator Frequency
Oscillator Duty Cycle
Oscillator Start-Up Voltage
VOUT=2.85V, Test circuits3
kHZ
ꢁ
Duty
Vstart
VOUT=2.85V,
High side, Test circuits3
60
EXT
EXT No load, Test circuits4
0.7
0.8
V
Output Voltage
Temperature Coefficient
IOUT=10mA
–30ꢀC≤Topt≤85ꢀC
∆VOUT
∆Topt
50
ppm/ꢀC
IEXTH
IEXTL
VCEH
VCEL
ICEH
ICEL
EXT “H” Output Current
EXT “L” Output Current
CE “H” Input Voltage
CE “L” Input Voltage
CE “H” Input Current
CE “L” Input Current
V
OUT=2.85V, VEXT=GND, Test circuits5
OUT=2.85V, VEXT=2.85V, Test circuits6
VOUT=2.85V, Test circuits4
VOUT=2.85V, Test circuits4
CE=3.0V, Test circuits7
–1.5
mA
mA
V
V
1.5
1.5
0.25
0.1
V
µA
µA
0.0
0.0
CE=GND, Test circuits8
–0.1
5
RN5RYxx1
• RN5RY401
Topt=25ꢀC
Symbol
VOUT
VIN
Item
Conditions
Min.
Typ.
Max.
4.100
10
Unit
Output Voltage
VIN=2.0V, IOUT=10mA
3.900
4.000
V
Input Voltage
V
µA
µA
µA
IDD1
Supply Current 1
Supply Current 2
Standby Current
EXT No load, VOUT=4.2V, Test circuits1
EXT No load, VOUT=3.8V, Test circuits1
VOUT=2.0V, Test circuits2
3
5
IDD2
50
90
Istandby
fosc
0.6
180
75
1.5
Maximum Oscillator Frequency
Oscillator Duty Cycle
VOUT=3.8V, Test circuits3
kHZ
ꢁ
Duty
Vstart
V
OUT=3.8V,
High side, Test circuits3
60
EXT
-
Oscillator Start Up Voltage
EXT No load, Test circuits4
0.7
0.8
V
∆VOUT
∆Topt
Output Voltage
Temperature Coefficient
IOUT=10mA
–30ꢀC≤Topt≤85ꢀC
50
ppm/ꢀC
IEXTH
IEXTL
VCEH
VCEL
ICEH
ICEL
EXT “H” Output Current
EXT “L” Output Current
CE “H” Input Voltage
CE “L” Input Voltage
CE “H” Input Current
CE “L” Input Current
V
OUT=3.8V, VEXT=GND, Test circuits5
–1.5
mA
mA
V
V
OUT=3.8V, VEXT=3.8V, Test circuits6
VOUT=3.8V, Test circuits4
VOUT=3.8V, Test circuits4
CE=4.0V, Test circuits7
CE=GND, Test circuits8
1.5
1.5
0.25
0.1
V
µA
µA
0.0
0.0
–0.1
6
RN5RYxx1
• RN5RY501
Symbol
Topt=25ꢀC
Item
Conditions
Min.
Typ.
Max.
5.125
10
Unit
VOUT
VIN
Output Voltage
VIN=2.5V, IOUT=10mA
4.875
5.000
V
Input Voltage
V
µA
µA
µA
IDD1
IDD2
Supply Current 1
EXT No load, VOUT=5.25V, Test circuits1
EXT No load, VOUT=4.75V, Test circuits1
VOUT=2.5V, Test circuits2
3
5
Supply Current 2
90
150
1.5
Istandby
fosc
Standby Current
0.6
180
75
Maximum Oscillator Frequency
Oscillator Duty Cycle
Oscillator Start-Up Voltage
VOUT=4.75V, Test circuits3
kHZ
ꢁ
Duty
VOUT=4.75V,
High side, Test circuits3
60
EXT
Vstart
EXT No load, Test circuits4
0.7
0.8
V
∆VOUT
∆Topt
Output Voltage
Temperature Coefficient
IOUT=10mA
–30ꢀC≤Topt≤85ꢀC
50
ppm/ꢀC
IEXTH
IEXTL
VCEH
VCEL
ICEH
ICEL
EXT “H” Output Current
EXT “L” Output Current
CE “H” Input Voltage
CE “L” Input Voltage
CE “H” Input Current
CE “L” Input Current
V
OUT=4.75V, VEXT=GND, Test circuits5
OUT=4.75V, VEXT=4.75V, Test circuits6
VOUT=4.75V, Test circuits4
VOUT=4.75V, Test circuits4
CE=5.0V, Test circuits7
–1.5
mA
mA
V
V
1.5
1.5
0.25
0.1
V
µA
µA
0.0
0.0
CE=GND, Test circuits8
–0.1
7
RN5RYxx1
TEST CIRCUIT
A
GND
VOUT
EXT
CE
NC
GND
CE
NC
A
VOUT
EXT
Test Circuit 1
Test Circuit 2
GND
VOUT
EXT
CE
GND
CE
NC
VOUT
EXT
NC
Oscilloscope
Oscilloscope
Test Circuit 3
Test Circuit 4
GND
CE
NC
GND
VOUT
EXT
CE
NC
VOUT
EXT
Oscilloscope
Oscilloscope
Test Circuit 5
Test Circuit 6
A
GND
CE
NC
A
GND
CE
NC
VOUT
EXT
VOUT
EXT
Test Circuit 7
Test Circuit 8
8
RN5RYxx1
TYPICAL CHARACTERISTICS
1) Output Voltage vs. Output Current
RN5RY301
L=68µH
RN5RY301
L=27µH
4.00
3.00
2.00
4.00
3.00
VIN=2.0V
VIN=2.0V
1.0V
200
1.5V
300
0.8V
1.0V
1.5V
0.8V
0.9V
0.9V
2.00
5.00
0
100
200
300
400
500
0
100
400
500
Output Current IOUT(mA)
Output Current IOUT(mA)
L=27µH
RN5RY401
L=68µH
RN5RY401
5.00
4.00
3.00
VIN=3.0V
VIN=3.0V
4.00
3.00
2.0V
1.0V
2.0V
1.0V
0.9V
0.8V
0.8V
0.9V
100
0
200
300
400
500
600
0
100
200
300
400
500
600
Output Current IOUT(mA)
Output Current IOUT(mA)
RN5RY501
L=27µH
RN5RY501
L=68µH
6.00
5.00
4.00
6.00
5.00
4.00
VIN=4.0V
VIN=4.0V
3.0V
1.0V
0.9V
1.0V
0.9V
2.0V
3.0V
2.0V
0.8V
0.8V
0
100 200 300 400 500 600 700
Output Current IOUT(mA)
0
100 200 300 400 500 600 700
Output Current IOUT(mA)
9
RN5RYxx1
2) Efficiency vs. Output Current
RN5RY301
L=27µH
RN5RY301
L=68µH
100
90
80
70
60
50
40
30
20
10
0
100
90
80
70
60
50
40
30
20
10
0
VIN=2.0V
VIN=2.0V
1.0V
0.9V
1.5V
1.0V
1.5V
0.8V
0.8V 0.9V
0
100
200
300
400
500
0
100
200
300
400
500
Output Current IOUT(mA)
Output Current IOUT(mA)
RN5RY401
L=68µH
RN5RY401
L=27µH
VIN=3.0V
2.0V
100
90
80
70
60
50
40
30
20
10
0
100
90
80
70
60
50
40
30
20
10
0
VIN=3.0V
2.0V
1.0V
0.9V
1.0V
0.9V
0.8V
0.8V
0
100
200
300
400
500
600
0
100
200
300
400
500
600
Output Current IOUT(mA)
Output Current IOUT(mA)
RN5RY501
L=68µH
RN5RY501
L=27µH
100
90
80
70
60
50
40
30
20
10
0
100
90
80
70
60
50
40
30
20
10
0
VIN=4.0V
VIN=4.0V
3.0V
1.0V
0.9V
1.0V
0.9V
3.0V
2.0V
2.0V
0.8V
0.8V
0
100
200
300 400
Output Current IOUT(mA)
500 600
700
0
100 200 300 400 500 600 700
Output Current IOUT(mA)
10
RN5RYxx1
3) Ripple Voltage vs. Output Current
RN5RY401
L=27µH
RN5RY301
L=27µH
400
300
200
350
1.5V
300
2.0V
1.0V
VIN=2.0V
250
VIN=3.0V
200
150
100
50
0.9V
0.8V
1.0V
0.9V
0.8V
100
0
0
200
Output Current IOUT(mA)
0
100
300
400
500
600
0
100
200
300
400
500
Output Current IOUT(mA)
RN5RY501
L=27µH
500
400
300
200
100
0
3.0V
2.0V
VIN=4.0V
1.0V
0.9V
0.8V
100 200
Output Current IOUT(mA)
0
300
400
500 600 700
11
RN5RYxx1
TYPICAL APPLICATIONS
L1
D1
VIN
RN5RYxx1
VOUT
VOUT
Cb
Rb
EXT
CE
GND
+
+
+
C2
C3
C1
Q1
Components : Inductor (L1)
Diode (D1)
: CD105
: D1FS4A (Schottky Type)
: 33µF (Tantalum Type)
: 47µF (Tantalum Type)
: 47µF (Tantalum Type)
: 2SD1628G
Capacitor (C1)
Capacitor (C2)
Capacitor (C3)
Transistor (Q1)
Base Resistor (Rb)
Base Capacitor (Cb)
: 220Ω
: 2200pF
APPLICATION HINTS
• A spike-shaped voltage higher than output voltage may be applied to the driver transistor. Therefore, care should be
paid regarding its absolute maximum ratings (VDS, VCF). We recommend to use a transistor having absolute maxi-
mum ratings of at least twice the set output voltage.
• We also recommend the use of an output capacitor with an allowable voltage which is at least 1.5 times the set out-
put voltage. This is because there may be the case where a spike-shaped voltage higher than the set output voltage
is generated.
Use capacitor with good high frequency characteristics such as tantalum capacitor.
• Choose such an inductor that a sufficiently small D.C. resistance and large allowable current, and hardly reaches
magnetic saturation.
• Use a diode of a Schottky type with high switching speed, and also take care of the rated current.
• Set external components as close as possible to the IC and minimize the current between the components and the
IC. In particular, make minimum connection with the output capacitor.
• Make sufficient grounding. A large current flows through GND pin by switching. When the impedance of the GND
connection is high, the potential within the IC is varied by the switching current. This may result in unstable opera-
tion of the IC.
12
1.The products and the product specifications described in this document are subject to change or
discontinuation of production without notice for reasons such as improvement. Therefore, before
deciding to use the products, please refer to Ricoh sales representatives for the latest
information thereon.
2.The materials in this document may not be copied or otherwise reproduced in whole or in part
without prior written consent of Ricoh.
3.Please be sure to take any necessary formalities under relevant laws or regulations before
exporting or otherwise taking out of your country the products or the technical information
described herein.
4.The technical information described in this document shows typical characteristics of and
example application circuits for the products. The release of such information is not to be
construed as a warranty of or a grant of license under Ricoh's or any third party's intellectual
property rights or any other rights.
5.The products listed in this document are intended and designed for use as general electronic
components in standard applications (office equipment, telecommunication equipment,
measuring instruments, consumer electronic products, amusement equipment etc.). Those
customers intending to use a product in an application requiring extreme quality and reliability,
for example, in a highly specific application where the failure or misoperation of the product
could result in human injury or death (aircraft, spacevehicle, nuclear reactor control system,
traffic control system, automotive and transportation equipment, combustion equipment, safety
devices, life support system etc.) should first contact us.
6.We are making our continuous effort to improve the quality and reliability of our products, but
semiconductor products are likely to fail with certain probability. In order to prevent any injury to
persons or damages to property resulting from such failure, customers should be careful enough
to incorporate safety measures in their design, such as redundancy feature, firecontainment
feature and fail-safe feature. We do not assume any liability or responsibility for any loss or
damage arising from misuse or inappropriate use of the products.
7.Anti-radiation design is not implemented in the products described in this document.
8.Please contact Ricoh sales representatives should you have any questions or comments
concerning the products or the technical information.
For the conservation of the global environment, Ricoh is advancing the decrease of the negative environmental impact material.
After Apr. 1, 2006, we will ship out the lead free products only. Thus, all products that will be shipped from now on comply with RoHS Directive.
Basically after Apr. 1, 2012, we will ship out the Power Management ICs of the Halogen Free products only. (Ricoh Halogen Free products are
also Antimony Free.)
Halogen Free
RICOH COMPANY, LTD.
Electronic Devices Company
http://www.ricoh.com/LSI/
RICOH COMPANY, LTD.
Electronic Devices Company
● Higashi-Shinagawa Office (International Sales)
3-32-3, Higashi-Shinagawa, Shinagawa-ku, Tokyo 140-8655, Japan
Phone: +81-3-5479-2857 Fax: +81-3-5479-0502
RICOH EUROPE (NETHERLANDS) B.V.
● Semiconductor Support Centre
“Nieuw Kronenburg”Prof. W.H. Keesomlaan 1, 1183 DJ, Amstelveen, The Netherlands
P.O.Box 114, 1180 AC Amstelveen
Phone: +31-20-5474-309 Fax: +31-20-5474-791
RICOH ELECTRONIC DEVICES KOREA Co., Ltd.
11 floor, Haesung 1 building, 942, Daechidong, Gangnamgu, Seoul, Korea
Phone: +82-2-2135-5700 Fax: +82-2-2135-5705
RICOH ELECTRONIC DEVICES SHANGHAI Co., Ltd.
Room403, No.2 Building, 690#Bi Bo Road, Pu Dong New district, Shanghai 201203,
People's Republic of China
Phone: +86-21-5027-3200 Fax: +86-21-5027-3299
RICOH COMPANY, LTD.
Electronic Devices Company
● Taipei office
Room109, 10F-1, No.51, Hengyang Rd., Taipei City, Taiwan (R.O.C.)
Phone: +886-2-2313-1621/1622 Fax: +886-2-2313-1623
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