R1141Q171D-TL [ETC]
Analog IC ; 模拟IC\n
| 型号： | R1141Q171D-TL |
| 厂家： | 
ETC |
| 描述： | Analog IC
|
| 文件： | 总15页 (文件大小：448K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
'2001.10.24
SC82 120mA LDO REGULATOR
R1141Q SERIES
■ OUTLINE
The R1141Q Series are voltage regulator ICs with high output voltage accuracy, low 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 for setting Output Voltage, a current limit circuit, and a chip enable circuit.
Output Current Limit circuit is embedded in the R1141Q Series to prevent the break down of the IC caused by excess current.
Chip enable circuit realizes standby mode and makes consumption current extremely small.
These ICs perform with low dropout voltage and a chip enable function. The line transient response and load transient
response of the R1141Q Series are excellent, thus these ICs are very suitable for the power supply for hand-held
communication equipment.
The output voltage of these ICs is internally fixed with high accuracy. Since the package for these ICs is SC-82AB (Super
Mini-mold) package, high density mounting of the ICs on boards is possible.
■ FEATURES
z
z
z
z
z
z
z
z
z
z
Ultra-Low Supply Current......................................... TYP. 90µA
Standby Mode ........................................................... TYP. 0.1µA
Low Dropout Voltage ................................................ TYP. 0.15V(IOUT=100mA Output Voltage=3.0V Type)
High Ripple Rejection............................................... TYP. 75dB(VOUT≤2.4V),70dB(VOUT≥2.5V) (f=1kHz)
Low Temperature-Drift Coefficient of Output Voltage TYP. ±100ppm/°C
Excellent Line Regulation......................................... TYP. 0.02%/V
High Output Voltage Accuracy.................................. ±1.5% or ±30mV(VOUT≤2.0V)
Excellent Dynamic Response
Small Package ..........................................................SC-82AB(Super Mini-mold)
Output Voltage...........................................................Stepwise setting with a step of 0.1V in the range of 1.5V to 4.0V is
possible
z
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Built-in chip enable circuit (B/D: active high)
Built-in fold-back protection circuit..........................TYP. 40mA (Current at short mode)
Ceramic capacitor can be used for Output pin..........Recommended value is 2.2µF or more.
■ APPLICATIONS
z
z
z
z
Power source for cellular phones such as GSM, CDMA and various kinds of PCS.
Power source for electrical appliances such as cameras, VCRs, camcorders, and hand-held communication equipment.
Power source for battery-powered equipment.
Very stable Voltage Reference
Rev. 1.11
- 1 -
■ BLOCK DIAGRAM
R1141QXX1B
R1141QXX1D
OUT
V
4
1
4
3
1
OUT
V
DD
V
-
DD
V
-
+
+
Vref
GND
Vref
GND
Current Limit
Current Limit
CE
2
3
CE
2
■ 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
with designating the part number as shown below;
R1141QXX1X-XX
←Part Number
↑ ↑ ↑ ↑
a
b c d
Code
Contents
Designation of Package Type :
Q:SC82-AB (Super Mini-mold)
Setting Output Voltage (VOUT) :
a
b
c
d
Stepwise setting with a step of 0.1V in the range of 1.5V to 4.0V is possible.
Designation 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.)
Rev. 1.11
- 2 -
■ PIN CONFIGURATION
SC-82AB
4
3
Mark side
1
2
■ PIN DESCRIPTION
Pin No.
Symbol
VOUT
Description
1
2
3
4
Output pin
GND
CE
Ground Pin
Chip Enable Pin
Input Pin
VDD
■ ABSOLUTE MAXIMUM RATINGS
Item
Input Voltage
Symbol
Rating
6.5
Unit
V
VIN
VCE
Input Voltage(CE Pin)
Output Voltage
-0.3 ~ VIN+0.3
-0.3 ~ VIN+0.3
140
V
VOUT
IOUT
PD
V
Output Current
mA
mW
°C
°C
Power Dissipation
150
Operating Temperature Range
Storage Temperature Range
Topt
Tstg
-40 ~ 85
-55 ~ 125
Rev. 1.11
- 3 -
■ ELECTRICAL CHARACTERISTICS
■
R1141QXX1B/R1141QXX1D
Topt=25°C
Symbol
Item
Conditions
MIN.
VOUT
×0.985
(-30mV)
120
TYP.
MAX.
VOUT
×1.015
Unit
VIN = Set VOUT+1V
1mA ≤ IOUT ≤ 30mA(Note 1)
VOUT
Output Voltage
V
(+30mV)
IOUT
Output Current
VIN - VOUT = 1.0V
VIN = Set VOUT+1V
1mA ≤ IOUT ≤ 120mA
mA
mV
Load Regulation
12
40
∆VOUT/∆IOUT
Refer to the ELECTRICAL CHARACTERISTICS by OUTPUT
VOLTAGE
VDIF
Dropout Voltage
ISS
Istandby
Supply Current
Supply Current (Standby)
VIN = Set VOUT+1V
VIN = VCE = Set VOUT+1V
90
0.1
160
1.0
µA
µA
Set VOUT+0.5V ≤ VIN ≤ 6V
IOUT = 30mA
(In case that VOUT≤1.6V,
2.2V≤ VIN ≤ 6V)
f = 1kHz, Ripple 0.5Vp-p
VIN = Set VOUT+1V,
IOUT = 30mA
Line Regulation
Ripple Rejection
0.02
0.10
%/V
∆VOUT/∆VIN
75
(70)
(Note 2)
RR
dB
(In case that VOUT≤1.7V,
VIN -VOUT =1.2V)
VIN
Input Voltage
Output Voltage
Temperature Coefficient
Short Current Limit
2.2
6.0
V
ppm
/°C
mA
MΩ
V
V
µVrms
IOUT = 30mA
-40°C ≤ Topt ≤ 85°C
VOUT = 0V
±100
∆VOUT/∆T
Ilim
RPU
VCEH
VCEL
en
40
2.0
Pull-up Resistance
Input Voltage “H”
Input Voltage “L”
0.7
1.5
0.0
8.0
VIN
0.3
CE
CE
CE
Output Noise
Low Output Nch Tr. ON
Resistance (of D version)
BW=10Hz to 100kHz
VCE=0V
30
60
RLOW
Ω
Note 1: ±30mV Tolerance at VOUT≤2.0V
Note 2:70dB at VOUT≥2.5V
■
ELECTRICAL CHARACTERISTICS by OUTPUT VOLTAGE
Topt = 25°C
Dropout Voltage
Output Voltage
DIF
V
(V)
OUT
V
(V)
Condition
TYP.
0.36
0.32
0.30
0.28
0.24
0.18
MAX.
0.70
0.60
0.50
0.40
0.35
0.28
VOUT = 1.5
VOUT = 1.6
VOUT = 1.7
1.8 ≤ VOUT ≤ 2.0
2.1 ≤ VOUT ≤ 2.7
2.8 ≤ VOUT ≤ 4.0
IOUT = 120mA
Rev. 1.11
- 4 -
■ 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 would be a cause of picking up the noise or
unstable operation. Connect a capacitor with as much as 1.0µF capacitor 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.
■ TEST CIRCUITS
4
VOUT
1
DD
V
R1141Q
SERIES
VOUT
IOUT
V
C2
C1
2
3
CE
GND
C1 = Ceramic 1.0 F
µ
*
C2 = Ceramic 2.2 F
µ
Fig.1 Standard test Circuit
4
1
VOUT
V
R1141Q
SERIES
DD
A
C2
I SS
3
C1
2
GND
CE
C1 = Ceramic1.0 F
µ
*
C2 = Ceramic 2.2 F
µ
Fig.2 Supply Current Test Circuit
Rev. 1.11
- 5 -
1
2
4
3
VOUT
R1141Q
SERIES
GND
VDD
Pulse
I OUT
Generator
C2
CE
PG
Fig.3 Ripple Rejection, Line Transient Response Test Circuit
4
1
OUT
DD
R1141Q
OUTb
I
C2
SERIES
OUTa
I
C1
2
GND CE
3
C1 = Ceramic 1.0 F
µ
*
C2 = Ceramic 2.2 F
µ
Fig.4 Load Transient Response Test Circuit
■ TYPICAL APPLICATION
1
2
4
3
OUT
OUT
V
IN
DD
V
R1141Q
SERIES
C2
C1
GND
CE
(External Components)
Output Capacitor; Ceramic Type C1=1µF C2=2.2µF
Rev. 1.11
- 6 -
■ TYPICAL CHARACTERISTICS
1) Output Voltage vs. Output Current
R1141Q151X
R1141Q201X
1.6
2.5
2.0
1.5
1.0
0.5
0.0
3.5V
2.5V
3.0V
1.4
2.0V
2.5V
VIN=1.8V
1.2
VIN=2.3V
1.0
0.8
0.6
0.4
0.2
0.0
4.0V
0
50
100
150
200
250
300
0
50
100
150
200
250
300
Output Current Iout[mA]
Output Current Iout[mA]
R1141Q281X
R1141Q401X
3.0
2.5
2.0
1.5
1.0
0.5
0.0
4.5
4.0
3.5
3.0
2.5
2.0
1.5
1.0
0.5
0.0
3.8V
3.3V
4.5V
6.0V
5.0V
VIN=3.1V
4.8V
VIN=4.3V
0
50
100
150
200
250
300
0
50
100
150
200
250
300
Output Current Iout[mA]
Output Current Iout[mA]
2) Output Voltage vs. Input Voltage
R1141Q151X
R1141Q201X
1.6
1.5
1.4
1.3
1.2
1.1
1.0
2.2
2.0
1.8
1.6
1.4
1.2
1.0
Iout=-1mA
Iout=-30mA
Iout=-50mA
Iout=-1mA
Iout=-30mA
Iout=-50mA
1
2
3
4
5
6
1
2
3
4
5
6
Input Voltage Vin[V]
Input Voltage Vin[V]
Rev. 1.11
- 7 -
R1141Q281X
R1141Q401X
2.9
2.8
2.7
2.6
2.5
2.4
2.3
2.2
2.1
2.0
4.2
4.0
3.8
3.6
3.4
3.2
3.0
Iout=-1mA
Iout=-30mA
Iout=-50mA
Iout=-1mA
Iout=-30mA
Iout=-50mA
1
2
3
4
5
6
1
2
3
4
5
6
Input Voltage Vin[V]
Input Voltage Vin[V]
3) Dropout Voltage vs. Output Current
R1141Q151X
R1141Q201X
1.2
0.4
0.3
0.2
0.1
0.0
85℃
25℃
-40℃
1.0
85℃
25℃
0.8
0.6
0.4
0.2
0.0
-40℃
0
20
40
60
80
100
120
0
20
40
60
80
100
120
Output Current Iout[mA]
Output Current Iout[mA]
R1141Q281X
R1141Q401X
0.25
0.20
0.15
0.10
0.05
0.00
0.20
0.18
0.16
0.14
0.12
0.10
0.08
0.06
0.04
0.02
0.00
85℃
25℃
-40℃
85℃
25℃
-40℃
0
20
40
60
80
100
120
0
20
40
60
80
100
120
Output Current Iout[mA]
Output Current Iout[mA]
Rev. 1.11
- 8 -
4) Output Voltage vs. Temperature
R1141Q151X
R1141Q201X
VIN=3.0V, IOUT=30mA
VIN=2.5V, IOUT=30mA
1.54
1.53
1.52
1.51
1.50
1.49
1.48
1.47
1.46
2.04
2.02
2.00
1.98
1.96
1.94
-50
-25
0
25
50
(°C)
75
100
-50
-25
0
25
50
(°C)
75
100
Temperature Topt
Temperature Topt
R1141Q281X
VIN=3.8V, IOUT=30mA
R1141Q401X
VIN=5.0V, IOUT=30mA
2.86
2.84
2.82
2.80
2.78
2.76
2.74
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
-50
-25
0
25
50
(°C)
75
100
Temperature Topt
Temperature Topt
(°C)
5) Supply Current vs. Input Voltage (Topt=25°C)
R1141Q151X
R1141Q201X
100
90
80
70
60
50
40
30
20
10
0
100
90
80
70
60
50
40
30
20
10
0
0
1
2
3
4
5
6
0
1
2
3
4
5
6
Input Voltage Vin[V]
Input Voltage Vin[V]
Rev. 1.11
- 9 -
R1141Q281X
R1141Q401X
100
90
80
70
60
50
40
30
20
10
0
100
90
80
70
60
50
40
30
20
10
0
0
1
2
3
4
5
6
0
1
2
3
4
5
6
Input Voltage Vin[V]
Input Voltage Vin[V]
6) Supply Current vs. Temperature
R1141Q151X
R1141Q201X
VIN=2.5V
VIN=3.0V
120
110
100
90
120
110
100
90
80
80
70
70
60
60
-50
0
50
(°C)
100
-50
0
50
(°C)
100
Temperature Topt
Temperature Topt
R1141Q281X
R1141Q401X
VIN=3.8V
VIN=5.0V
120
110
100
90
120
110
100
90
80
80
70
70
60
60
-50
0
50
(°C)
100
-50
0
50
(°C)
100
Temperature Topt
Temperature Topt
Rev. 1.11
- 10 -
7) Dropout Voltage vs. Set Output Voltage
1.0
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0.0
10mA
30mA
50mA
120mA
1.0
2.0
3.0
4.0
Set Output Voltage Vreg[V]
8) Ripple Rejection vs. Frequency
R1141Q151X
VIN=2.5V+0.5Vp-p, CIN = none, COUT = Ceramic 2.2µF VIN=3.8V+0.5Vp-p, CIN = none, COUT = Ceramic 2.2µF
R1141Q281X
90
80
70
60
50
40
30
20
10
0
90
80
70
60
50
40
30
20
10
0
0.1
1
10
100
0.1
1
10
100
Frequency f (kHz)
Frequency f (kHz)
R1141Q401X
VIN=5.0V+0.5Vp-p, CIN = none, COUT = Ceramic 2.2µF
90
80
70
60
50
40
30
20
10
0
0.1
1
10
100
Frequency f (kHz)
Rev. 1.11
- 11 -
9) Ripple Rejection vs. Input Bias
R1141Q281X
IOUT=1mA, CIN = none, COUT = Ceramic 2.2µF
R1141Q281X
IOUT=30mA, CIN = none, COUT = Ceramic 2.2µF
100
100
90
80
70
60
50
40
30
20
10
0
90
80
70
60
50
40
30
20
10
0
1kHz
10kHz
100kHz
1kHz
10kHz
100kHz
2.8
2.9
3
3.1
IN
3.2
3.3
2.8
2.9
3
3.1
3.2
3.3
Input Voltage V (V)
IN
Input Voltage V (V)
R1141Q281X
IOUT=50mA, CIN = none, COUT = Ceramic 2.2µF
100
90
80
70
60
50
40
1kHz
30
20
10
0
10kHz
100kHz
2.8
2.9
3
3.1
3.2
3.3
Input Voltage VIN(V)
10) Input Transient Response
R1141Q281X
VIN=3.8V to 4.8V, IOUT=30mA, COUT = Ceramic 1.0µF, Tr=Tf=5.0µs
2.83
2.82
2.81
2.80
2.79
2.78
2.77
6
Input Voltage
5
4
3
Output Voltage
2
1
0
-20
-10
0
10
20
30
40
50
60
70
80
Time t[us]
Rev. 1.11
- 12 -
R1141Q281X
VIN=3.8V to 4.8V, IOUT=30mA, COUT = Ceramic 2.2µF, Tr=Tf=5.0µs
2.83
2.82
2.81
2.80
2.79
2.78
2.77
6
5
Input Voltage
4
3
2
1
0
Output Voltage
-20
-10
0
10
20
30
40
50
60
70
80
Time t[us]
R1141Q281X
VIN=3.8V to 4.8V, IOUT=30mA, COUT = Ceramic 4.7µF, Tr=Tf=5.0µs
2.83
2.82
2.81
2.80
2.79
2.78
2.77
6
5
4
3
2
1
0
Input Voltage
Output Voltage
-20
-10
0
10
20
30
Time t[us]
40
50
60
70
80
11) Load Transient Response
R1141Q281X
VIN=3.8V, IOUT=50mA→100mA, CIN = Ceramic 1.0µF COUT = Ceramic 1.0µF, Tr=Tf=5.0µs
3.00
2.95
2.90
2.85
2.80
2.75
2.70
150
100
Output Current
50
0
-50
-100
-150
Output Voltage
14
16
18
20
22
24
26
28
30
32
34
Time t[us]
Rev. 1.11
- 13 -
R1141Q281X
VIN=3.8V, IOUT=50mA→100mA, CIN = Ceramic 1.0µF COUT = Ceramic 2.2µF, Tr=Tf=5.0µs
3.00
2.95
2.90
2.85
2.80
2.75
2.70
150
100
Output Current
50
0
Output Voltage
-50
-100
-150
14
16
18
20
22
24
26
28
30
32
34
Time t[us]
R1141Q281X
VIN=3.8V, IOUT=50mA→100mA, CIN = Ceramic 1.0µF COUT = Ceramic 4.7µF, Tr=Tf=5.0µs
3.00
2.95
2.90
2.85
2.80
2.75
2.70
150
100
Output Current
50
0
Output Voltage
-50
-100
-150
14
16
18
20
22
24
26
28
30
32
34
Time t[us]
Rev. 1.11
- 14 -
■ TECHNICAL NOTES
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=VSET+1V
(2) Frequency band: 10Hz to 30MHz
(3) Temperature: 25°C
R1141Q151X
f=10Hz to 2MHz, CIN = Ceramic 1.0µF,
COUT = Ceramic 2.2µF
R1141Q281X
f=10Hz to 2MHz,CIN = Ceramic1.0µF,
COUT = Ceramic2.2µF
100
10
100
10
1
1
0.1
0.01
0.1
0.01
0
30
60
90
120
0
30
60
90
120
Output Current IOUT(mA)
Output Current IOUT(mA)
Rev. 1.11
- 15 -
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