R1110N441B-TR [RICOH]
Fixed Positive LDO Regulator, 4.4V, 0.26V Dropout, CMOS, PDSO5, MINI, PLASTIC, SOT-23, 5 PIN;型号: | R1110N441B-TR |
厂家: | RICOH ELECTRONICS DEVICES DIVISION |
描述: | Fixed Positive LDO Regulator, 4.4V, 0.26V Dropout, CMOS, PDSO5, MINI, PLASTIC, SOT-23, 5 PIN 光电二极管 输出元件 调节器 |
文件: | 总23页 (文件大小:172K) |
中文: | 中文翻译 | 下载: | 下载PDF数据表文档文件 |
LOW NOISE 150mA
L.D.O REGULATOR
R1110N SERIES
APPLICATION MANUAL
ELECTRONIC DEVICES DIVISION
NO. EA-046-9803
NOTICE
1. The products and the product specifications described in this application manual 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. This application manual 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 application manual 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, computer 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 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, fire-containment 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 application manual.
8. Please contact Ricoh sales representatives should you have any questions or comments concerning the
products or the technical information.
June 1995
R1110N SERIES
APPLICATION MANUAL
CONTENTS
......................................................................................................
OUTLINE
1
...................................................................................................
FEATURES
1
.............................................................................................
APPLICATIONS
BLOCK DIAGRAM
SELECTION GUIDE
PIN CONFIGURATION
1
.........................................................................................
2
.......................................................................................
2
...................................................................................
3
........................................................................................
PIN DESCRIPTION
3
...................................................................
ABSOLUTE MAXIMUM RATINGS
ELECTRICAL CHARACTERISTICS
4
................................................................
5
..................................................................................................
OPERATION
7
............................................................................................
TEST CIRCUITS
8
.......................................................................
TYPICAL CHARACTERISTICS
9
1) Output Voltage vs. Output Current ......................................................................
2) Output Voltage vs. Input Voltage ........................................................................
9
9
3) Dropout Voltage vs. Output Current ...................................................................
4) Output Voltage vs. Temperature .......................................................................
5) Supply Current vs. Input Voltage ......................................................................
6) Supply Current vs. Temperature .......................................................................
7) Dropout Voltage vs. Set Output Voltage ..............................................................
8) Ripple Rejection vs. Frequency........................................................................
9) Ripple Rejection vs. Input Voltage (DC bias).........................................................
10) Line Transient Response ...............................................................................
11) Load Transient Response ..............................................................................
10
11
11
12
13
13
14
15
16
18
18
19
..............................................................................
................................................................................
TYPICAL APPLICATION
PACKAGE DIMENSION
TAPING SPECIFICATION
.............................................................................
LOW NOISE 150mA L.D.O REGULATOR
R1110N SERIES
OUTLINE
The R1110N Series are voltage regulator ICs with high output voltage accuracy, lowest supply current, low ON Resistance
and high Ripple Rejection by CMOS process. Each of these voltage regulator ICs consists of a voltage reference unit, an
error amplifier, resistors, a current limit circuit and a chip enable circuit.
These ICs perform with low dropout voltage and a chip enable function.
The Dynamic Response to line and load is fast, so these ICs are very suitable for the power supply for handheld communi-
cation equipment.
The output voltage of these ICs is fixed with high accuracy.
Since the package for these ICs are SOT-23-5(Mini-mold)package, high density mounting of the ICs on boards is possible.
FEATURES
• Ultra-Low Supply Current
.....................
TYP. 35µA
.....................................
• Standby Current
TYP. 0.1µA
.....................................
• Dropout Voltage
TYP. 0.2V (IOUT=100mA)
TYP. 70dB (f=1kHz)
2.0%
............................
• High Ripple Rejection
• High Accuracy Output Voltage
............
• Low Temperature-Drift Coefficient of
.......................................
Output Voltage
TYP. 100ppm/˚C
.....................
• Excellent Line Regulation
TYP. 0.05%/V
.......................................................
• Pinout
Similar to the LP2980
SOT-23-5 (Mini-mold)
.........................................
• Small Package
APPLICATIONS
• Power source for portable communication tools, cameras and VCRs.
• Power source for battery-powered equipment.
• Power source for domestic appliances.
1
R1110N
BLOCK DIAGRAM
R1110N××1B
R1110N××1A
VDD
5
VOUT VDD
5 VOUT
1
1
--
+
--
+
Vref
Vref
Current Limit
Current Limit
3
CE
3
2
GND
2 GND
CE
SELECTION GUIDE
The output voltage, the active type, the packing type 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:
R1110N ××1 ×–××←Part Number
↑
↑
↑
a
b
c
Code
Contents
Setting Output Voltage (VOUT) :
a
Stepwise setting with a step of 0.1V in the range of 2.0V to 6.0V is possible.
Designation of Chip enable Active Type :
A : “L” active type
b
c
B : “H” active type
Designation of Taping Type :
Ex. TR, TL (refer to Taping Specifications, TR type is prescribed as a standard.)
2
R1110N
PIN CONFIGURATION
• SOT-23-5
5
4
(mark side)
1
2
3
PIN DESCRIPTION
Pin No.
Symbol
Pin Description
1
2
3
4
5
VDD
Input Pin
GND
Ground Pin
CE or CE Chip Enable Pin
NC
No Connection
Output Pin
VOUT
3
R1110N
ABSOLUTE MAXIMUM RATINGS
Symbol
Item
Rating
9
Unit
V
VIN
Input Voltage
VCE
Input Voltage for CE/CE Pin
Output Voltage
–0.3 to VIN +0.3
–0.3 to VIN +0.3
200
V
VOUT
IOUT
PD
V
Output Current
mA
mW
˚C
Power Dissipation
250
Topt
Tstg
Operating Temperature Range
Storage Temperature Range
–40 to 85
–55 to 125
˚C
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
R1110N
ELECTRICAL CHARACTERISTICS
Topt=25˚C
Symbol
Item
Conditions
MIN.
TYP.
MAX.
Unit
VIN–setVOUT=1.0V
VOUT
Output Voltage
×0.98
×1.02
V
1mA≤IOUT≤30mA
VIN–setVOUT=1.0V
IOUT
Output Current
Load Regulation
150
mA
when VOUT=setVOUT–0.1V
∆VOUT
∆IOUT
VIN–setVOUT=1.0V
12
40
mV
1mA≤IOUT≤80mA
VDIF
Iss
Dropout Voltage
Supply Current
Standby Current
refer to the ELECTICAL CHARACTERISTICS by OUTPUT VOLTAGE
VIN–setVOUT=1.0V
35
70
µA
µA
Istandby
VIN–setVOUT=1.0V, VCE=VIN
0.1
1.0
∆VOUT
∆VIN
refer to the ELECTICAL CHARACTERISTICS by OUTPUT VOLTAGE
f=1kHz, Ripple 0.5Vp-p
Line Regulation
RR
Ripple Rejection
Input Voltage
70
dB
VIN–setVOUT=1.0V
VIN
2.7
8
V
∆VOUT
∆Topt
Output Voltage
IOUT=30mA
100
ppm/
˚C
Temperature Coefficient
–40˚C≤Topt≤85˚C
Ilim
RPU
VCEH
VCEL
en
Short Current Limit
Pull up resistance for CE pin
CE Input Voltage “H”
CE Input Voltage “L”
Output Noise
VOUT=0V
50
5
mA
MΩ
V
2.5
1.5
0
10
VIN
0.25
V
BW=10Hz to 100kHz
60
µVrms
5
R1110N
Topt=25˚C
Symbol
Item
Conditions
MIN.
TYP.
MAX.
Unit
VIN–setVOUT=1.0V
VOUT
Output Voltage
×0.98
×1.02
V
1mA≤IOUT≤30mA
VIN–setVOUT=1.0V
IOUT
Output Current
Load Regulation
150
mA
when VOUT=setVOUT–0.1V
∆VOUT
∆IOUT
VIN–setVOUT=1.0V
12
40
mV
1mA≤IOUT≤80mA
VDIF
Iss
Dropout Voltage
Supply Current
Standby Current
refer to the ELECTICAL CHARACTREISTICS by OUTPUT VOLTAGE
VIN–setVOUT=1.0V
35
70
µA
µA
Istandby
VIN–setVOUT=1.0V, VCE=GND
0.1
1.0
∆VOUT
∆VIN
refer to the ELECTICAL CHARACTREISTICS by OUTPUT VOLTAGE
f=1kHz, Ripple 0.5Vp-p
Line Regulation
RR
Ripple Rejection
Input Voltage
70
dB
VIN–setVOUT=1.0V
VIN
2.7
8
V
∆VOUT
∆Topt
Output Voltage
IOUT=30mA
100
ppm/
˚C
Temperature Coefficient
–40˚C≤Topt≤85˚C
Ilim
RPD
VCEH
VCEL
en
Short Current Limit
Pull down resistance for CE pin
CE Input Voltage “H”
CE Input Voltage “L”
Output Noise
VOUT=0V
50
5
mA
MΩ
V
2.5
1.5
0
10
VIN
0.25
V
BW=10Hz to 100kHz
60
µVrms
• ELECTRICAL CHARACTERISTICS by OUTPUT VOLTAGE
Dropout Voltage
Topt=25˚C
Line Regulation
∆VOUT/∆VIN(%/V)
Output Voltage VOUT (V)
VDIF (V)
Conditions
TYP.
MAX.
Conditions
TYP.
MAX.
IOUT=30mA
2.0≤VOUT≤2.4
0.30
0.70
setVOUT+0.7V≤VIN≤8V
2.5≤VOUT≤2.7
2.8≤VOUT≤3.3
3.4≤VOUT≤6.0
0.24
0.20
0.17
0.35
0.30
0.26
IOUT=100mA
0.05
0.20
IOUT=30mA
setVOUT+0.5V≤VIN≤8V
6
R1110N
OPERATION
R1110N××1B
R1110N××1A
VDD
5
VOUT VDD
5 VOUT
1
1
--
+
--
+
R1
R2
R1
R2
Vref
Vref
Current Limit
Current Limit
3
CE
3
2
GND
2 GND
CE
In these ICs, fluctuation in Output Voltage VOUT is detected by Feed-back Registers R1, R2, and the result is compare with
a reference voltage by Error Amplifier, so that a constant voltage is output.
A current limit circuit working for Short Protect and a chip enable circuit are included.
7
R1110N
TEST CIRCUITS
CE
CE
3
3
VDD
IN
VOUT
VDD
VOUT
IN
ISS
OUT
IOUT
OUT
1
5
1
5
R1110N××1B Series
R1110N××1B Series
10µF
10µF
10µF
10µF
2
2
GND
GND
Standard Test Circuit
Test Circuit for Supply Current
CE
3
CE
3
VDD
VOUT
VDD
VOUT
IN
OUT
OUT
1
5
1
5
IOUT
10µF
R1110N××1B Series
R1110N××1B Series
10µF
10µF
P.G
2
2
I1 I2
GND
GND
Test Circuit for Ripple Rejection and Line Transient Response
Test Circuit for Load Transient Response
8
R1110N
TYPICAL CHARACTERISTICS
1) Output Voltage vs. Output Current
R1110N401B
R1110N301B
T
opt=25˚C
5.0V
Topt=25˚C
3.5
3.0
4.5
4.0
3.5
6.0V
2.5
2.0
1.5
5.0V
4.5V
4.0V
3.5V
3.0
2.5
2.0
1.5
1.0
0.5
0.0
V
IN=4.3V
VIN=3.3V
1.0
0.5
0.0
0
100
200
300
400
500
0
100
200
300
400
500
Output Current IOUT(mA)
Output Current IOUT(mA)
R1110N501B
T
opt=25˚C
7.0V
6.0V
6.0
5.0
4.0
3.0
2.0
5.5V
IN=5.3V
V
1.0
0.0
0
200
300
400
500
100
Output Current IOUT(mA)
2) Output Voltage vs. Input Voltage
R1110N301B
R1110N401B
T
opt=25˚C
T
opt=25˚C
3.1
3.0
2.9
2.8
2.7
4.5
4.0
3.5
IOUT=1mA
IOUT=1mA
30mA
3.0
2.5
50mA
2.6
2.5
30mA
2.0 3.0
50mA
3.0 4.0
Input Voltage VIN(V)
4.0
5.0
6.0
7.0
8.0
2.0
5.0
6.0
7.0 8.0
Input Voltage VIN(V)
9
R1110N
R1110N501B
T
opt=25˚C
5.5
5.0
4.5
4.0
3.5
3.0
2.5
IOUT=1mA
30mA
50mA
4.0
Input Voltage VIN(V)
2.0
3.0
5.0
6.0
7.0
8.0
3) Dropout Voltage vs. Output Current
R1110N301B
R1110N401B
0.40
0.35
0.30
0.25
0.20
0.15
0.10
0.05
0.00
0.40
Topt=85˚C
0.35
0.30
Topt=85˚C
25˚C
0.25
0.20
0.15
0.10
0.05
0.00
25˚C
–40˚C
–40˚C
0
50
100
150
0
50
100
150
Output Current IOUT(mA)
Output Current IOUT(mA)
R1110N501B
0.40
0.35
0.30
Topt=85˚C
0.25
0.20
0.15
0.10
0.05
25˚C
–40˚C
0.00
0
50
100
150
Output Current IOUT(mA)
10
R1110N
4) Output Voltage vs. Temperature
R1110N301B
R1110N401B
V
IN=4V
V
IN=5V
IOUT=10mA
IOUT=10mA
3.10
3.08
3.06
3.04
3.02
3.00
4.10
4.08
4.06
4.04
4.02
4.00
2.98
2.96
2.94
2.92
2.90
3.98
3.96
3.94
3.92
3.90
–50 –25
0
25
50
75
100
–50 –25
0
25
50
75
100
TemperatureTopt(˚C)
TemperatureTopt(˚C)
R1110N501B
V
IN=6V
IOUT=10mA
5.10
5.08
5.06
5.04
5.02
5.00
4.98
4.96
4.94
4.92
4.90
–50 –25
0
25
50
75
100
TemperatureTopt(˚C)
5) Supply Current vs. Input Voltage
R1110N301B
R1110N401B
T
opt=25˚C
T
opt=25˚C
50
40
30
50
40
30
20
10
0
20
10
0
2.0
3.0
4.0
5.0
6.0
7.0
8.0
2.0
3.0
4.0
5.0
6.0
7.0
8.0
Input Voltage VIN(V)
Input Voltage VIN(V)
11
R1110N
R1110N501B
T
opt=25˚C
50
40
30
20
10
0
2.0
3.0
4.0
5.0
6.0
7.0
8.0
Input Voltage VIN(V)
6) Supply Current vs. Temperature
R1110N301B
R1110N401B
V
IN=4V
VIN=5V
50
50
45
40
35
30
25
20
45
40
35
30
25
20
–50 –25
0
25
50
75 100
–50 –25
0
25
50
75 100
TemperatureTopt(˚C)
TemperatureTopt(˚C)
R1110N501B
V
IN=6V
50
45
40
35
30
25
20
–50 –25
0
25
50
75 100
TemperatureTopt(˚C)
12
R1110N
7) Dropout Voltage vs. Set Output Voltage
R1110N××1B
Topt=25˚C
0.7
IOUT=150mA
0.6
IOUT=100mA
0.5
0.4
0.3
0.2
0.1
0.0
IOUT=50mA
IOUT=30mA
IOUT=10mA
2.0
3.0
4.0
5.0
6.0
Set Output Voltage Vreg(V)
8) Ripple Rejection vs. Frequency
R1110N301B
R1110N301B
VIN=4VDC+0.5Vp-p
COUT=tantal 4.7µF
VIN=4VDC+0.5Vp-p
COUT=10µF
80
70
60
50
40
30
20
10
0
80
70
60
50
40
30
20
10
0
IOUT=1mA
IOUT=1mA
IOUT=30mA
IOUT=50mA
IOUT=30mA
IOUT=50mA
0.1
1
10
100
0.1
1
10
100
Frequency f(kHZ)
Frequency f(kHZ)
R1110N401B
R1110N401B
VIN=5VDC+0.5Vp-p
VIN=5VDC+0.5Vp-p
COUT=4.7µF
COUT=10µF
80
70
60
50
40
30
20
10
0
80
70
60
50
40
30
20
10
0
IOUT=1mA
IOUT=30mA
IOUT=50mA
IOUT=1mA
IOUT=30mA
IOUT=50mA
0.1
1
10
100
0.1
1
10
100
Frequency f(kHZ)
Frequency f(kHZ)
13
R1110N
R1110N501B
R1110N501B
VIN=6VDC+0.5Vp-p
COUT=4.7µF
VIN=6VDC+0.5Vp-p
COUT=10µF
80
70
60
50
40
30
20
10
0
80
70
60
50
40
30
20
10
0
IOUT=1mA
IOUT=30mA
IOUT=50mA
IOUT=1mA
IOUT=30mA
IOUT=50mA
0.1
1
10
100
0.1
1
10
100
Frequency f(kHZ)
Frequency f(kHZ)
9) Ripple Rejection vs. Input Voltage (DC bias)
R1110N301B IOUT =1mA
R1110N301B IOUT =10mA
COUT=10µF
COUT=10µF
80
80
70
60
50
40
30
20
10
0
70
60
50
40
30
20
10
0
f=400Hz
f=1kHz
f=400Hz
f=1kHz
f=10kHz
f=10kHz
3.1
3.2
3.3
3.4
3.5
3.1
3.2
3.3
3.4
3.5
Input Voltage VIN(V)
Input Voltage VIN(V)
R1110N301B IOUT=50mA
COUT=10µF
80
70
60
50
40
30
20
10
0
f=400Hz
f=1kHz
f=10kHz
3.1
3.2
3.3
3.4
3.5
Input Voltage VIN(V)
14
R1110N
10) Line Transient Response
IOUT=30mA
tr=tf=5µs
R1110N301B
COUT=Tantalum4.7µF
3.4
3.3
3.2
3.1
3.0
2.9
2.8
6
5
4
3
2
1
0
Input Voltage
Output Voltage
0
0
0
20
20
20
40
40
40
60
80
100
120
Time t(µS)
IOUT=30mA
R1110N301B
tr=tf=5µs
COUT=Tantalum6.8µF
3.4
3.3
3.2
3.1
3.0
2.9
2.8
6
5
4
3
2
1
0
Input Voltage
Output Voltage
60
80
100
120
Time t(µS)
IOUT=30mA
tr=tf=5µs
COUT=Tantalum10µF
R1110N301B
3.4
3.3
3.2
3.1
3.0
2.9
2.8
6
5
4
3
2
1
0
Input Voltage
Output Voltage
60
80
100
120
Time t(µS)
15
R1110N
11) Load Transient Response
VIN=4V
CIN=Tantalum1µF
COUT=Tantalum4.7µF
R1110N301B
3.4
3.3
3.2
3.1
3.0
2.9
2.8
150
100
50
Output Current
0
Output Voltage
–50
–100
–150
0
0
0
2
2
2
4
4
4
6
6
6
8
8
8
10
12
14
16
18
20
Time t(µS)
VIN=4V
CIN=Tantalum1µF
COUT=Tantalum6.8µF
R1110N301B
3.4
3.3
3.2
3.1
3.0
2.9
2.8
150
100
50
Output Current
Output Voltage
0
–50
–100
–150
10
12
14
16
18
20
Time t(µS)
VIN=4V
CIN=Tantalum1µF
COUT=Tantalum10µF
R1110N301B
3.4
3.3
3.2
3.1
3.0
2.9
2.8
150
100
50
Output Current
Output Voltage
0
–50
–100
–150
10
12
14
16
18
20
Time t(µS)
16
R1110N
APPLICATION HINTS
When using these ICs, be sure to take care of following points :
• In these ICs, phase compensation is made for securing stable operation even if the load current is varied.
For this purpose, be sure to use a capacitor COUT with good frequency characteristics and ESR (Equivalent
Series Resistance) of which is in the range described as follows :
The relations between IOUT (Output Current) and ESR of Output Capacitor are shown below. The
conditions when the white noise level is under 40µV (Avg.) are marked as the hatched area in the graph.
(note : When the additional ceramic capacitors are connected to the Output Pin with Output capacitor for
phase compensation, there are possibilities that the operation will be unstable. Because of this, test these
ICs with as same external components as ones to be used on the PCB.)
< measuring conditions >
VIN=4V
Freqency band : 10Hz to 1MHz
Temperature : 25˚C
• Make VDD and GND line sufficient. When the impedance of these is high, there is a case to pick up the noise or
not to work correctly.
• Connect the capacitor with a capacitance of 1µF or more between VDD and GND as close as possible.
• Set external components, especially Output Capacitor, as close as possible to the ICs and make wiring
shortest.
Ceramic Capacitor 4.7µF
Ceramic Capacitor 6.8µF
100
10
1
100
10
1
0.1
0.1
0
50
80
150
0
50
80
150
Output Current IOUT(mA)
Output Current IOUT(mA)
Ceramic Capacitor 10µF
100
10
1
• Measuring Circuit for white noise ; R1110N301B
3
CE
VOUT
5
Ceramic
Capacitor
R1110N301B
S.A.
Spectrum
Analyzer
ESR
1
VIN
GND
IOUT
2
Ceramic
Capacitor1µF
VIN
0.1
0
50
80
150
Output Current IOUT(mA)
17
R1110N
TYPICAL APPLICATION
CE
CE
R1110N××1A
R1110N××1B
IN
VDD
VOUT
OUT IN
VDD
VOUT
OUT
+
+
+
+
Cap.
Cap.
Cap.
Cap.
GND
GND
PACKAGE DIMENSION (Unit : mm)
• SOT-23-5
2.9±0.2
+0.2
1.1
–0.1
1.9±0.2
(0.95) (0.95)
0.8±0.1
5
4
0 to 0.1
1
2
3
0.4±0.1
+0.1
–0.05
0.15
18
R1110N
TAPING SPECIFICATION (Unit : mm)
• SOT-23-5
4.0±0.1
+0.1
–0
ø
1.5
0.3±0.1
2.0±0.05
3.2
3.3
4.0±0.1
2.0MAX.
T R
T L
User Direction of Feed
19
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