R1140Q21DTR-F [RICOH]
Fixed Positive LDO Regulator, 2.1V, 0.4V Dropout, CMOS, PDSO4, SC-82AB, 4-PIN;
| 型号： | R1140Q21DTR-F |
| 厂家： | 
RICOH ELECTRONICS DEVICES DIVISION |
| 描述： | Fixed Positive LDO Regulator, 2.1V, 0.4V Dropout, CMOS, PDSO4, SC-82AB, 4-PIN 光电二极管 |
| 文件： | 总16页 (文件大小：428K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
R1140Q SERIES
Discontinued
120mA LDO REGULATOR
OUTLINE
NO.EA-074-110412
The R1140Q Series are CMOS-based voltage regulator ICs with high output voltage accuracy, low supply
current, low ON-resistance, and high ripple rejection. Each of these voltage regulator ICs consists of a voltage
reference unit, an error amplifier, resistors for setting Output Voltage, a current limit circuit, and a chip enable
circuit.
These ICs perform with low dropout voltage and a chip enable function. The ine transient response and load
transient response of the R1140Q Series are excellent, thus these ICs are veble for the power supply for
hand-held communication equipment.
The output voltage of these ICs is internally fixed with high accuracnce the package for these ICs is
SC-82AB (Super Mini-mold) package, high density mounting of the ICs oboars is possible.
FEATURES
• Ultra-Low Supply Current.............................................Typ. 75μA
• Standby Mode..............................................................Ty. 0.1μA
• Low Dropout Voltage....................................................Typ. 0.15V (IOUT=100mA, Output Voltage=3.0V Type)
• High Ripple Rejection ..................................................Typ. 75dB (f=1kHz)
• Low Temperature-Drift Coefficient of Output Voltage...Typ. ±100ppm/°C
• Excellent Line Regulation ...........................................Typ. 0.05%/V
• High Output Voltage Accuracy .....................................±2.0%
• Output Voltage Range.......................................1.5V to 4.0V
• Excellent Dynamic Response
• Small Package............................................................SC-82AB (Super Mini-mold)
• Built-in Chip Enable Circuit (B/D : active hih)
• Built-in Fold-back Protection Circuit............................ Typ. 40mA (Current at short mode)
APPLICATION
• Power source for cnes such as GSM, CDMA and various kinds of PCS.
• Power source for elepliances such as cameras, VCRs and camcorders.
• Power source for batterywered equipment.
1
R1140Q
Discontinued
BLOCK DIAGRAMS
R1140Qxx1B
R1140Qxx1D
4
4
1
1
VDD
VDD
VOUT
VOUT
Vref
Current Limit
Vref
Current Limit
CE
3
CE
3
2
2
GND
GND
SELECTION GUIDE
The output voltage, mask option, 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;:
R1140Qxx1x-xx-x←Part Number
↑ ↑
a b
↑
c
↑ ↑
d e
Code
Contents
Designation of Package Type
Q: SC-82AB (Mini-mold)
a
Setting Output e (VOUT):
Stepwise setting with a step of 0.1V in the range of 1.5V to 4.0V is possible.
b
c
Designatin of Mask Option :
B: Without auto discharge function at OFF state.
D: With auto discharge function at OFF state.
Designation of Taping Type :
Ex. TR, TL (refer to Taping Specifications; TR type is the standard direction.)
d
e
siguation of composition of pin plating
Leed free plating
2
R1140Q
Discontinued
PIN CONFIGURATION
z SC-82AB
4
3
(mark side)
1
2
PIN DESCRIPTION
Pin No
Symbol
Pin Description
1
2
3
4
VOUT
Output Pin
GND
CE
Ground Pin
Chip Enable Pin
Input Pn
VDD
ABSOLUTE MAXIMUM RATI
Symbol
Item
Rating
Unit
V
VIN
Input Voltage
6.5
VCE
Input Voltage (CE Pin)
Output Voltage
V
−0.3 to VIN +0.3
VOUT
IOUT
V
−0.3 to VIN +0.3
140
Outrrent
mA
mW
°C
°C
Pation (SC-82AB)∗
OperatTemperature Range
Storage Temperature Range
PD
380
Topt
Tstg
−40 to 85
−55 to 125
∗) For Power Dissipation, please refer to PACKAGE INFORMATION to be described.
3
R1140Q
Discontinued
ELECTRICAL CHARACTERISTICS
• R1140Qxx1B/D
Topt=25°C
Symbol
VOUT
Item
Output Voltage
Conditions
Min.
Typ.
Max.
Unit
VOUT
×0.98
VOUT
×1.02
VIN=Set VOUT+1.0V
V
1mA
IOUT
30mA
=
IOUT
Output Current
120
mA
mV
VIN−VOUT=1.0V
VIN=Set VOUT+1.0V
Load Regulation
12
40
ΔVOUT/ΔIOUT
1mA
IOUT
120mA
=
Refer to the ELECTRICAL HARACTERISTICS
by OUTPUT AGE
VDIF
Dropout Voltage
ISS
Supply Current
75
150
1.0
VIN=Set VOUT+1.0V
μA
μA
Istandby
Supply Current (Standby)
0.1
VIN=VCE=Set VOUT+1.0V
Set VOUT+0.5V VIN 6.0V
=
IOUT=30mA
Line Regulation
0.05
75
0.20
%/V
ΔVOUT/ΔVIN
(In case that VOUT 1.6V,
=
2.2V VIN 6.0V)
=
f=1kHz, Ripple .5Vp-p
VIN=Set VOUT+1V,
IOUT=30mA
(In case that VOUT 1.7V,
VIN−VUT=1.2V)
RR
Ripple Rejection
Input Voltage
dB
V
VIN
2.2
6.0
ppm/
°C
Output Voltage Temperature
Coefficient
I0mA
ΔVOUT/ΔTopt
±100
Topt 85°C
=
=
ILIM
RPU
VCEH
VCEL
en
Short Current Limit
40
mA
MΩ
V
VOUT=0V
1.5
1.5
0.0
4.0
16.0
VIN
CE
CE
CE
Pull up resistance
Input Voltage “H”
Input Voltage “L”
0.3
V
Output Noise
30
70
µVrms
BW=10Hz to 100kHz
VCE=0V
Low OutpN
Resistance (ion)
RLOW
Ω
• ELECTRICAL CHARACTERISTICS by OUTPUT VOLTAGE
Topt = 25°C
Dropout Voltage VDIF (V)
Output Voltage
VOUT (V)
Condition
Typ.
0.36
0.30
0.28
0.24
0.18
Max.
<
=
<
<
<
<
<
1.5V
1.7V
1.9V
2.1V
2.8V
VOUT
VOUT
VOUT
VOUT
VOUT
1.6V
1.8V
2.0V
2.7V
4.0V
0.70
0.50
0.45
0.40
0.30
<
=
<
=
IOUT=120mA
<
=
<
=
4
R1140Q
Discontinued
TECHNICAL NOTES
When using these ICs, consider the following points:
Phase Compensation
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 2.2µF or more capacitor COUT with good frequency characteristics and ESR
(Equivalent Series Resistance).
(Note: When the additional ceramic capacitors are connected to the Output Pin with Output capacitor for
phase compensation, the operation might be unstable. Because of this, test these ICs with as same external
components as ones to be used on the PCB.)
PCB Layout
Make VDD and GND line sufficient. When the impedance of these is high, it woud be a cause of picking up the
noise or unstable operation. Connect a capacitor with as much as 1.0µF acior between VDD and GND pin as
close as possible.
Set external components, especially output capacitor as close as possible to the ICs and make wiring
shortest.
TYPICAL APPLICATION
1
2
4
3
OUT
DD
OUT
V
V
IN
R1140Q
SERIES
C2
C1
GND
CE
(External Components)
Output Capacitor; Tantalu
5
R1140Q
Discontinued
TEST CIRCUITS
1
2
OUT
DD 4
V
V
R1140Q
SERIES
V
C2
C1
OUT
I
OUT
V
3
CE
GND
∗C1=Tntal 1.0μf
C2=2.2μf
Fig.1 Standard test Circuit
1
2
OUT
DD 4
V
V
R1140Q
SERIES
A
SS
I
C2
C1
3
CE
GND
∗C1=Tantal 1.0μf
C2=Tantal 2.2μf
Fig.2 Supply Current Test Circuit
1
2
OUT
DD 4
V
V
R1140Q
SERIES
Pulse
Generator
C2
OUT
I
PG
3
CE
GND
Fig.3 Ripe Rejection, Line Transient Response Test Circuit
1
2
OUT
DD 4
V
V
R1140Q
SERIES
C2
C1
3
CE
GND
OUT
I
OUT
I
a
b
∗C1=Tantal 1.0μf
C2=Tantal 2.2μf
Fig.4 Load Transient Response Test Circuit
6
R1140Q
Discontinued
TYPICAL CHARACTERISTICS
1) Output Voltage vs. Output Current
R1140Q151x
R1140Q281x
3.0
2.5
2.0
1.5
1.0
0.5
0
1.6
3.5V
4.8V
1.4
2.0V
3.3V
VIN=1.8V
1.2
1
V
IN=3.1V
0.8
0.6
0.4
3.8V
2.5V
0.2
0
0
5
0.1
0.15
0.2
0.25
0.3
0
0.05
0.1
0.15
0.2
0.25
0.3
Output Current IOUT(A)
Output Current IOUT (A)
R1140Q401x
4.5
4
6.0V
5.0V
4.5V
V
IN=4.3V
3.5
3
2.5
2
1.5
1
0.5
0
0
0.05
0.1
0.15
0.2
.25
0.3
Output Current IOT (A)
2) Output Voltage vs. Input Voltage
R1x
R1140Q281x
2.9
2.8
2.7
2.6
2.5
2.4
2.3
2.2
1.6
1.5
1.4
1.3
1.2
1mA
30mA
50mA
1mA
30mA
50mA
1.1
1
2.1
2
1
2
3
4
5
6
1
2
3
4
5
6
Input Voltage VIN (V)
Input Voltage VIN (V)
7
R1140Q
Discontinued
R1140Q401x
4.2
4
3.8
3.6
3.4
3.2
1mA
30mA
50mA
3
1
2
3
4
5
6
Input Voltage VIN (V)
3) Dropout Voltage vs. Output Current
R1140Q151x
R1140Q281x
0.25
0.2
1.2
85°C
25°C
-40°C
85°C
25°C
1
0.8
0.6
0.4
-40°C
0.15
0.1
0.05
0
0.2
0
0
20
40
60
80
100
120
0
20
40
60
80
100
120
Output Current IOUT (mA)
Output Current IOUT (mA)
R1140Q401x
0.2
0.18
0.16
0.14
85°
2
-40
0.12
0.1
0.08
0.06
0.04
0.02
0
0
20
40
60
80
100
120
Output Current IOUT (mA)
8
R1140Q
Discontinued
4) Output Voltage vs. Temperature
R1140Q151x
R1140Q281x
1.54
2.86
1.53
1.52
1.51
1.50
1.49
2.84
2.82
2.80
2.78
1.48
1.47
1.46
2.76
2.74
-50
-25
0
25
50
75
100
-50
-5
0
25
50
75
100
Temperature Topt (°C)
emperature Topt (°C)
R1140Q401x
4.08
4.06
4.04
4.02
4.00
3.98
3.96
3.94
3.92
-50
-25
0
25
50
75
100
Temperature Topt (°C)
5) Supply Current vs. Input Voltage
R1140Q151x
R1140Q281x
90
90
80
70
60
50
40
30
20
80
70
60
50
40
30
20
10
0
10
0
1
2
3
4
5
6
1
2
3
4
5
6
Input Voltage VIN (V)
Input Voltage VIN (V)
9
R1140Q
Discontinued
R1140Q401x
90
80
70
60
50
40
30
20
10
0
1
2
3
4
5
6
Input Voltage VIN (V)
6) Supply Current vs. Temperature
R1140Q151x
R1140Q281x
V
IN=2.5V
VIN=3.8V
200
160
120
80
200
160
120
80
40
0
40
0
-50
0
50
10
-50
0
50
100
Temperature Topt (°C)
Temperature Topt (°C)
R1140Q401x
VIN=5.0V
200
160
120
80
40
0
-50
0
50
100
Temperature Topt (°C)
10
R1140Q
Discontinued
7) Dropout Voltage vs. Set Output Voltage
1
0.9
0.8
0.7
10mA
30mA
50mA
120mA
0.6
0.5
0.4
0.3
0.2
0.1
0
1.5
2.5
3.5
Set Output Voltage Vreg (V)
8) Ripple Rejection vs. Frequency
R1140Q151x
R1140Q151x
V
IN=2.5VDC+0.5Vp-p
V
IN=2.5VDC+0.5Vp-p
COUT=tantal 1.0μF, Topt=25°C
COUT=tantal 2.2μF, Topt=25°C
-90
-80
-70
-60
-50
-40
-30
-20
-90
-80
70
-60
-50
-40
-30
-20
50mA
30mA
1mA
50mA
30mA
1mA
-10
0
-10
0
0.1
1.0
10.0
100.0
0.1
1.0
10.0
100.0
Frequency (kHz)
Frequency (kHz)
R1140Q281x
R1140Q281x
VDC+05Vp-p
V
IN=3.8VDC+0.5Vp-p
al 1.0μF, Topt=25°C
COUT=tantal 2.2μF, Topt=25°C
-90
-80
-70
-60
-50
-40
-30
-20
-90
-80
-70
-60
-50
-40
-30
-20
50mA
30mA
1mA
50mA
30mA
1mA
-10
0
-10
0
0.1
1.0
10.0
100.0
0.1
1.0
10.0
100.0
Frequency (kHz)
Frequency (kHz)
11
R1140Q
Discontinued
R1140Q401x
R1140Q401x
V
IN=5.0VDC+0.5Vp-p
V
IN=5.0VDC+0.5Vp-p
C
OUT=tantal 1.0μF, Topt=25°C
C
OUT=tantal 2.2μF, Topt=25°C
-90
-80
-70
-60
-50
-40
-30
-20
-10
-90
-80
-70
-60
-50
-40
-30
-20
50mA
30mA
1mA
50mA
30mA
1mA
-10
0
0
0.1
1.0
10.0
100.0
0.1
1.0
10.0
100.0
Frequency (kHz)
Frequency (kHz)
9) Ripple Rejection vs. Input Bias
R1140Q281x
R1140Q281x
I
OUT=30mA
IOUT=1mA
100
90
80
70
60
50
40
30
20
80
70
60
50
1kHz
10kHz
100kHz
40
1kHz
10kHz
100kHz
30
20
10
0
10
0
2.9
2.9
3
3.1
Input Voltage VIN (V)
3.2
3.3
3
3.1
Input Voltage VIN (V)
3.2
3.3
R1140x
IOUT=50mA
90
80
70
60
50
40
30
20
1kHz
10kHz
100kHz
10
0
2.9
3
3.1
Input Voltage VIN (V)
3.2
3.3
12
R1140Q
Discontinued
10) Input Transient Response
R1140Q281x
V
C
IN=3.8V 4.8V, tr=tf=5μs
OUT=tantal 1.0μF, IOUT=30mA
6
5
4
V
V
IN
2.80
2.79
2.78
2.77
3
2
1
0
OUT
0
0
0
10
10
10
20
20
20
30
30
30
40
40
40
50
60
60
60
0
80
90
100
Time t (μs)
R1140Q281x
V
C
IN=3.8V 4.8V, tr=tf=5μs
OUT=tantal 2.2μF, IOUT=30mA
6
5
4
V
V
IN
3
2
1
0
2.80
2.79
2.78
2.77
OUT
50
70
80
90
100
Time t (μs)
R1140Q281x
V
C
IN=3.8V 4.8V, tr=tf=5μs
OUT=tantal 6.8μF, IOUT=30mA
6
5
4
V
V
IN
3
2
1
0
2.80
2.79
2.78
2.77
OUT
50
70
80
90
100
Time t (μs)
13
R1140Q
Discontinued
11) Input Transient Response
R1140Q281x
V
C
IN=3.8V, CIN=tantal 1.0μF
OUT=tantal 1.0μF
150
100
50
I
OUT
2.85
2.80
2.75
2.70
0
V
OUT
-4
-2
0
2
4
6
8
10
12
14
16
Time t (μs)
R1140Q281x
V
C
IN=3.8V, CIN=tantal 1.0μF
OUT=tantal 2.2μF
150
100
50
I
OUT
2.85
2.80
2.75
2.70
0
V
OUT
-4
-2
0
2
4
6
8
10
12
14
16
Time t (μs)
R1140Q281x
V
C
IN=3.8V, CIN=tantal 1.0μF
OUT=tantal 6.8μF
150
100
50
I
OUT
0
2.85
2.80
2.75
2.70
V
OUT
-4
-2
0
2
4
6
8
10
12
14
16
Time t (μs)
14
R1140Q
Discontinued
ESR vs. Output Current
When using these ICs, consider the 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.
<Test conditions>
(1) VIN=3.8V
(2) Frequency band: 10Hz to 2MHz
(3) Temperature: 25°C
R1140Q281x
R1140Q281x
V
IN=3.8V,CIN=Ceramic 1.0μF
V
IN=3.8V,CIN=Ceramic 2.2μF
C
OUT=Ceramic 2.2μF
C
OUT=Ceramic 2.2μF
100
10
100
10
1
1
0.1
0.01
0.1
0.01
0
20
40
60
80
100 120
0
20
40
60
80
100 120
Output Current IOUT(m)
Output Current IOUT(mA)
15
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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
相关型号：
R1140Q22D-TL
Fixed Positive LDO Regulator, 2.2V, 0.4V Dropout, CMOS, PDSO4, MINI, PLASTIC, SC-82AB, 4 PIN
RICOH
R1140Q231D-TL-F
Fixed Positive LDO Regulator, 2.3V, 0.4V Dropout, CMOS, PDSO4, LEAD FREE, SC-82AB, 4 PIN
RICOH
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