S-1131B52UC-N5LTFU 概述
IC REG LINEAR 5.2V 300MA SOT89-5
S-1131B52UC-N5LTFU 数据手册
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PDF下载S-1131 Series
HIGH RIPPLE-REJECTION AND LOW DROPOUT
MIDDLE OUTPUT CURRENT CMOS VOLTAGE REGULATOR
www.ablic.com
© ABLIC Inc., 2002-2014
Rev.4.1_02
The S-1131 Series is a positive voltage regulator with a low dropout voltage, high-accuracy output voltage, and
low current consumption developed based on CMOS technology.
A built-in low on-resistance transistor provides a low dropout voltage and large output current, and a built-in
overcurrent protection circuit prevents the load current from exceeding the current capacitance of the output
transistor. An ON/OFF circuit ensures a long battery life, and small SOT-89-3, SOT-89-5 and 6-Pin HSON(A)
packages realize high-density mounting.
Features
1.5 V to 5.5 V, selectable in 0.1 V step
1.0%
250 mV typ. (3.0 V output product, IOUT = 100 mA)
During operation: 35 A typ., 65 A max.
During power-off: 0.1 A typ., 1.0 A max.
Possible to output 300 mA (VIN VOUT(S) 1.0 V)*1
70 dB typ. (f = 1.0 kHz)
Output voltage:
Output voltage accuracy:
Dropout voltage:
Current consumption:
Output current:
Ripple rejection:
Limits overcurrent of output transistor.
Ensures long battery life.
Built-in overcurrent protection circuit:
Built-in ON/OFF circuit:
Operation temperature range:
Ta = 40°C to 85°C
Lead-free, Sn 100%, halogen-free*2
*1. Attention should be paid to the power dissipation of the package when the output current is large.
*2. Refer to “ Product Name Structure” for details.
Applications
Constant-voltage power supply for DVD and CD-ROM drive
Constant-voltage power supply for battery-powered device
Constant-voltage power supply for personal communication device
Constant-voltage power supply for note book PC
Packages
SOT-89-3
SOT-89-5
6-Pin HSON(A)
1
HIGH RIPPLE-REJECTION LOW DROPOUT MIDDLE OUTPUT CURRENT CMOS VOLTAGE REGULATOR
Rev.4.1_02
S-1131 Series
Block Diagrams
(1) Without ON/OFF circuit (Package: SOT-89-3)
*1
VIN
VOUT
Overcurrent
protection circuit
Reference
voltage circuit
VSS
*1. Parasitic diode
Figure 1
(2) With ON/OFF circuit (Package: SOT-89-5, 6-Pin HSON(A))
*1
VIN
VOUT
Overcurrent
protection circuit
ON/OFF
ON/OFF
circuit
Reference
voltage circuit
VSS
*1. Parasitic diode
Figure 2
2
HIGH RIPPLE-REJECTION LOW DROPOUT MIDDLE OUTPUT CURRENT CMOS VOLTAGE REGULATOR
Rev.4.1_02
S-1131 Series
Product Name Structure
Users can select the product type, output voltage, and package type for the S-1131 Series. Refer to “1.
Product name” regarding the contents of product name, “2. Packages” regarding the package
drawings, “3. Product name list” regarding details of the product name.
1. Product name
(1) SOT-89-3, SOT-89-5
S-1131
x
xx xx
-
xxx TF
x
Environmental code
U: Lead-free (Sn 100%), halogen-free
G: Lead-free (for details, please contact our sales office)
IC direction in tape specifications*1
Product name (abbreviation)*2
Package name (abbreviation)
UA: SOT-89-3
UC: SOT-89-5
Output voltage
15 to 55
(e.g., when the output voltage is 1.5 V, it is expressed
as 15.)
Product type*3
A: ON/OFF pin negative logic
B: ON/OFF pin positive logic
*1. Refer to the tape drawing.
*2. Refer to the product name list.
*3. Refer to “3. ON/OFF pin” in “ Operation” (Expect SOT-89-3).
3
HIGH RIPPLE-REJECTION LOW DROPOUT MIDDLE OUTPUT CURRENT CMOS VOLTAGE REGULATOR
Rev.4.1_02
S-1131 Series
(2) 6-Pin HSON(A)
S-1131 xx PD
x
-
xxx TF
x
Environmental code
S: Lead-free, halogen-free
G: Lead-free (for details, please contact our sales office)
IC direction in tape specifications*1
Product name (abbreviation)*2
Package name (abbreviation)
PD: 6-Pin HSON(A)
Output voltage
15 to 55
(e.g., when the output voltage is 1.5 V, it is expressed
as 15.)
Product type*3
A: ON/OFF pin negative logic
B: ON/OFF pin positive logic
*1. Refer to the tape drawing.
*2. Refer to the product name list.
*3. Refer to “3. ON/OFF pin” in “ Operation”
2. Packages
Drawing Code
Tape
Package Name
Package
Reel
SOT-89-3
SOT-89-5
6-Pin HSON(A)
UP003-A-P-SD
UP005-A-P-SD
PD006-A-P-SD
UP003-A-C-SD
UP005-A-C-SD
PD006-A-C-SD
UP003-A-R-SD
UP005-A-R-SD
PD006-A-R-SD
4
HIGH RIPPLE-REJECTION LOW DROPOUT MIDDLE OUTPUT CURRENT CMOS VOLTAGE REGULATOR
Rev.4.1_02
S-1131 Series
3. Product name list
Table 1
Output voltage
1.5V±1.0%
1.6V±1.0%
1.7V±1.0%
1.8V±1.0%
1.9V±1.0%
2.0V±1.0%
2.1V±1.0%
2.2V±1.0%
2.3V±1.0%
2.4V±1.0%
2.5V±1.0%
2.6V±1.0%
2.7V±1.0%
2.8V±1.0%
2.9V±1.0%
3.0V±1.0%
3.1V±1.0%
3.2V±1.0%
3.3V±1.0%
3.4V±1.0%
3.5V±1.0%
3.6V±1.0%
3.7V±1.0%
3.8V±1.0%
3.9V±1.0%
4.0V±1.0%
4.1V±1.0%
4.2V±1.0%
4.3V±1.0%
4.4V±1.0%
4.5V±1.0%
4.6V±1.0%
4.7V±1.0%
4.8V±1.0%
4.9V±1.0%
5.0V±1.0%
5.1V±1.0%
5.2V±1.0%
5.3V±1.0%
5.4V±1.0%
5.5V±1.0%
SOT-89-3
SOT-89-5
6-Pin HSON(A)
S-1131B15UA-N4ATFx
S-1131B16UA-N4BTFx
S-1131B17UA-N4CTFx
S-1131B18UA-N4DTFx
S-1131B19UA-N4ETFx
S-1131B20UA-N4FTFx
S-1131B21UA-N4GTFx
S-1131B22UA-N4HTFx
S-1131B23UA-N4ITFx
S-1131B24UA-N4JTFx
S-1131B25UA-N4KTFx
S-1131B26UA-N4LTFx
S-1131B27UA-N4MTFx
S-1131B28UA-N4NTFx
S-1131B29UA-N4OTFx
S-1131B30UA-N4PTFx
S-1131B31UA-N4QTFx
S-1131B32UA-N4RTFx
S-1131B33UA-N4STFx
S-1131B34UA-N4TTFx
S-1131B35UA-N4UTFx
S-1131B36UA-N4VTFx
S-1131B37UA-N4WTFx
S-1131B38UA-N4XTFx
S-1131B39UA-N4YTFx
S-1131B40UA-N4ZTFx
S-1131B41UA-N5ATFx
S-1131B42UA-N5BTFx
S-1131B43UA-N5CTFx
S-1131B44UA-N5DTFx
S-1131B45UA-N5ETFx
S-1131B46UA-N5FTFx
S-1131B47UA-N5GTFx
S-1131B48UA-N5HTFx
S-1131B49UA-N5ITFx
S-1131B50UA-N5JTFx
S-1131B51UA-N5KTFx
S-1131B52UA-N5LTFx
S-1131B53UA-N5MTFx
S-1131B54UA-N5NTFx
S-1131B55UA-N5OTFx
S-1131B15UC-N4ATFx
S-1131B16UC-N4BTFx
S-1131B17UC-N4CTFx
S-1131B18UC-N4DTFx
S-1131B19UC-N4ETFx
S-1131B20UC-N4FTFx
S-1131B21UC-N4GTFx
S-1131B22UC-N4HTFx
S-1131B23UC-N4ITFx
S-1131B24UC-N4JTFx
S-1131B25UC-N4KTFx
S-1131B26UC-N4LTFx
S-1131B27UC-N4MTFx
S-1131B28UC-N4NTFx
S-1131B29UC-N4OTFx
S-1131B30UC-N4PTFx
S-1131B31UC-N4QTFx
S-1131B32UC-N4RTFx
S-1131B33UC-N4STFx
S-1131B34UC-N4TTFx
S-1131B35UC-N4UTFx
S-1131B36UC-N4VTFx
S-1131B37UC-N4WTFx
S-1131B38UC-N4XTFx
S-1131B39UC-N4YTFx
S-1131B40UC-N4ZTFx
S-1131B41UC-N5ATFx
S-1131B42UC-N5BTFx
S-1131B43UC-N5CTFx
S-1131B44UC-N5DTFx
S-1131B45UC-N5ETFx
S-1131B46UC-N5FTFx
S-1131B47UC-N5GTFx
S-1131B48UC-N5HTFx
S-1131B49UC-N5ITFx
S-1131B50UC-N5JTFx
S-1131B51UC-N5KTFx
S-1131B52UC-N5LTFx
S-1131B53UC-N5MTFx
S-1131B54UC-N5NTFx
S-1131B55UC-N5OTFx
S-1131B15PD-N4ATFz
S-1131B16PD-N4BTFz
S-1131B17PD-N4CTFz
S-1131B18PD-N4DTFz
S-1131B19PD-N4ETFz
S-1131B20PD-N4FTFz
S-1131B21PD-N4GTFz
S-1131B22PD-N4HTFz
S-1131B23PD-N4ITFz
S-1131B24PD-N4JTFz
S-1131B25PD-N4KTFz
S-1131B26PD-N4LTFz
S-1131B27PD-N4MTFz
S-1131B28PD-N4NTFz
S-1131B29PD-N4OTFz
S-1131B30PD-N4PTFz
S-1131B31PD-N4QTFz
S-1131B32PD-N4RTFz
S-1131B33PD-N4STFz
S-1131B34PD-N4TTFz
S-1131B35PD-N4UTFz
S-1131B36PD-N4VTFz
S-1131B37PD-N4WTFz
S-1131B38PD-N4XTFz
S-1131B39PD-N4YTFz
S-1131B40PD-N4ZTFz
S-1131B41PD-N5ATFz
S-1131B42PD-N5BTFz
S-1131B43PD-N5CTFz
S-1131B44PD-N5DTFz
S-1131B45PD-N5ETFz
S-1131B46PD-N5FTFz
S-1131B47PD-N5GTFz
S-1131B48PD-N5HTFz
S-1131B49PD-N5ITFz
S-1131B50PD-N5JTFz
S-1131B51PD-N5KTFz
S-1131B52PD-N5LTFz
S-1131B53PD-N5MTFz
S-1131B54PD-N5NTFz
S-1131B55PD-N5OTFz
Remark1. Please contact our sales office for type A products.
2. x: G or U
z: G or S
3. Please select products of environmental code = U for Sn 100%, halogen-free products.
5
HIGH RIPPLE-REJECTION LOW DROPOUT MIDDLE OUTPUT CURRENT CMOS VOLTAGE REGULATOR
Rev.4.1_02
S-1131 Series
Pin Configurations
Table 2
SOT-89-3
Top view
Pin No.
Symbol
VOUT
VSS
Description
1
2
3
Output voltage pin
GND pin
Input voltage pin
VIN
1
2
3
Figure 3
Table 3
SOT-89-5
Top view
Pin No.
Symbol
VOUT
VSS
Description
Output voltage pin
GND pin
5
4
1
2
3
4
5
NC*1
No connection
ON/OFF pin
ON/OFF
VIN
Input voltage pin
*1. The NC pin is electrically open.
The NC pin can be connected to the VIN pin or the VSS pin.
1
2
3
Figure 4
6
HIGH RIPPLE-REJECTION LOW DROPOUT MIDDLE OUTPUT CURRENT CMOS VOLTAGE REGULATOR
Rev.4.1_02
S-1131 Series
6-Pin HSON(A)
Top view
Table 4
6
5
4
Pin No.
Symbol
VOUT
VSS
Description
Output voltage pin
GND pin
No connection
No connection
ON/OFF pin
1
2
3
4
5
6
NC*1
NC*1
ON/OFF
VIN
1
2
3
Input voltage pin
Bottom view
1
2
3
*1. The NC pin is electrically open.
*1
*2
The NC pin can be connected to the VIN pin or the VSS pin.
6
5
4
*1. Connect the exposed thermal
die pad at shadowed area to
the board, and set electric
potential open or VSS.
However, do not use it as the
function of electrode.
*2. Be careful of the contact with
other wires because the pinch
lead has the same electric
potential as VSS.
Figure 5
Absolute Maximum Ratings
Table 5
(Ta
= 25C unless otherwise specified)
Item
Input voltage
Symbol
VIN
VON/OFF
VOUT
Absolute Maximum Rating
VSS 0.3 to VSS 7
VSS 0.3 to VIN 0.3
VSS 0.3 to VIN 0.3
500
Unit
V
V
Output voltage
V
SOT-89-3
SOT-89-5
6-Pin HSON(A)
mW
mW
mW
C
Power
dissipation
PD
500
500
40 to 85
40 to 125
Operation ambient temperature
Storage temperature
Topr
Tstg
C
Caution The absolute maximum ratings are rated values exceeding which the product could suffer
physical damage. These values must therefore not be exceeded under any conditions.
7
HIGH RIPPLE-REJECTION LOW DROPOUT MIDDLE OUTPUT CURRENT CMOS VOLTAGE REGULATOR
Rev.4.1_02
S-1131 Series
Electrical Characteristics
Table 6
(Ta
=
25C unless otherwise specified)
Test
Circuit
Item
Symbol
VOUT(E)1
Conditions
Min.
Typ.
Max.
Unit
VOUT(S)
VOUT(S)
VOUT(S)
VOUT(S)
V
1
V
IN = VOUT(S)
1.0 V, IOUT = 30 mA
0.99
1.01
Output voltage*1
Output current*2
VOUT(S)
VOUT(S)
VOUT(E)2
IOUT
V
1
V
IN = VOUT(S)
VOUT(S)
1.0 V, IOUT = 80 mA
1.0 V
0.98
1.02
300*5
mA
V
V
V
V
V
V
V
V
3
1
1
1
1
1
1
1
1
1
1
VIN
VOUT(S) = 1.5 V
1.00
0.90
0.80
0.70
0.60
0.50
0.40
0.30
0.25
0.20
1.05
0.95
0.85
0.75
0.65
0.60
0.55
0.49
0.34
0.28
VOUT(S) = 1.6 V
VOUT(S) = 1.7 V
VOUT(S) = 1.8 V
VOUT(S) = 1.9 V
VOUT(S) = 2.0 V
VOUT(S) = 2.1 V
Dropout voltage*3
Vdrop
IOUT = 100 mA
2.2 V
2.6 V
3.4 V
VOUT(S)
VOUT(S)
VOUT(S)
2.5 V
3.3 V
5.5 V
V
V
VOUT1
VOUT(S)
OUT = 80 mA
VIN = VOUT(S)
1.0 mA IOUT
VIN = VOUT(S)
40 Ta
0.5 V
VIN
6.5 V,
Line regulation
Load regulation
0.05
20
0.2
40
%/V
1
1
1
VINVOUT
I
1.0 V,
80 mA
1.0 V, IOUT = 10 mA,
85
mV
VOUT2
ppm
Output voltage
VOUT
TaVOUT
100
temperature coefficient*4
/
C
C
C
Current consumption
during operation
Input voltage
VIN = VOUT(S)
no load
1.0 V, ON/OFF pin = ON,
ISS1
VIN
35
70
65
6.5
2
5
2.0
A
V
VIN = VOUT(S)
1.0 V, f = 1.0 kHz,
RR
Ripple rejection
dB
Vrip = 0.5 Vrms, IOUT = 80 mA
VIN = VOUT(S)
1.0 V, ON/OFF pin = ON,
Short-circuit current
Ishort
ISS2
VSH
VSL
ISH
450
0.1
mA
3
2
4
4
4
4
1.0
VOUT = 0 V
Current consumption
during power-off
ON/OFF pin
input voltage “H”
ON/OFF pin
input voltage “L”
ON/OFF pin
input current “H”
ON/OFF pin
input current “L”
VIN = VOUT(S)
no load
1.0 V, ON/OFF pin = OFF,
A
1.5
V
VIN = VOUT(S)
VIN = VOUT(S)
1.0 V, RL = 1.0 k
1.0 V, RL = 1.0 k
0.3
0.1
0.1
V
VIN = 6.5 V, VON/OFF = 6.5 V
VIN = 6.5 V, VON/OFF = 0 V
0.1
0.1
A
A
ISL
*1. VOUT(S): Set output voltage
V
OUT(E)1: Actual output voltage
Output voltage when fixing IOUT(= 30 mA) and inputting VOUT(S) 1.0 V
OUT(E)2: Actual output voltage
Output voltage when fixing IOUT(= 80 mA) and inputting VOUT(S) 1.0 V
V
*2. The output current at which the output voltage becomes 95% of VOUT(E)1 after gradually increasing the output current.
*3. Vdrop = VIN1 (VOUT3 0.98)
VOUT3 is the output voltage when VIN = VOUT(S) 1.0 V and IOUT = 100 mA.
V
IN1 is the input voltage at which the output voltage becomes 98% of VOUT3 after gradually decreasing the input voltage.
*4. A change in the temperature of the output voltage [mV/°C] is calculated using the following equation.
VOUT
Ta
VOUT
Ta VOUT
mV/°C *1 = VOUT(S)
V
[ ]
*2
ppm/°C *3 1000
[ ]
[
]
*1. Change in temperature of the output voltage
*2. Set output voltage
*3. Output voltage temperature coefficient
*5. The output current can be at least this value.
Due to restrictions on the package power dissipation, this value may not be satisfied. Attention should be paid to the power
dissipation of the package when the output current is large.
This specification is guaranteed by design.
8
HIGH RIPPLE-REJECTION LOW DROPOUT MIDDLE OUTPUT CURRENT CMOS VOLTAGE REGULATOR
Rev.4.1_02
S-1131 Series
Test Circuits
1.
A
VIN
VOUT
VSS
ON/OFF*1
V
Set to ON
Figure 6
2.
3.
4.
A
VIN
ON/OFF*1
VOUT
VSS
Set to
IN or GND
V
Figure 7
A
VIN
ON/OFF*1
VOUT
V
VSS
Set to ON
Figure 8
VIN
VOUT
ON/OFF*1
V
A
RL
VSS
Figure 9
5.
VIN
VOUT
ON/OFF*1
V
RL
VSS
Set to ON
Figure 10
*1. In case of product with ON/OFF circuit.
9
HIGH RIPPLE-REJECTION LOW DROPOUT MIDDLE OUTPUT CURRENT CMOS VOLTAGE REGULATOR
Rev.4.1_02
S-1131 Series
Standard Circuit
Output
Input
VIN
VOUT
*3
ON/OFF*2
VSS
*1
CL
CIN
GND
Single GND
*1. CIN is a capacitor for stabilizing the input.
*2. In case of product with ON/OFF circuit.
*3. A tantalum capacitor (2.2 F or more) can be used.
Figure 11
Caution The above connection diagram and constant will not guarantee successful operation.
Perform thorough evaluation using the actual application to set the constant.
Condition of Application
Input capacitor (CIN):
1.0 F or more
Output capacitor (CL): 2.2 F or more (tantalum capacitor)
Caution Generally a series regulator may cause oscillation, depending on the selection of external
parts. Check that no oscillation occurs with the application using the above capacitor.
10
HIGH RIPPLE-REJECTION LOW DROPOUT MIDDLE OUTPUT CURRENT CMOS VOLTAGE REGULATOR
Rev.4.1_02
S-1131 Series
Explanation of Terms
1. Low dropout voltage regulator
This voltage regulator has the low dropout voltage due to its built-in low on-resistance transistor.
2. Output voltage (VOUT
)
The accuracy of the output voltage is ensured at 1.0% under the specified conditions of fixed input
voltage*1, fixed output current, and fixed temperature.
*1. Differs depending the product.
Caution If the above conditions change, the output voltage value may vary and exceed the
accuracy range of the output voltage. Refer to " Electrical Characteristics" and "
Characteristics (Typical Data)" for details.
VOUT1
3. Line regulation
V V
OUT
IN
Indicates the dependency of the output voltage on the input voltage. That is, the value shows how much
the output voltage changes due to a change in the input voltage with the output current remaining
unchanged.
4. Load regulation (VOUT2
)
Indicates the dependency of the output voltage on the output current. That is, the value shows how
much the output voltage changes due to a change in the output current with the input voltage remaining
unchanged.
5. Dropout voltage (Vdrop
)
Indicates the difference between input voltage (VIN1) and the output voltage when; decreasing input
voltage (VIN) gradually until the output voltage has dropped out to the value of 98% of output voltage
(VOUT3), which is at VIN = VOUT(S) 1.0 V.
Vdrop = VIN1 (VOUT3 0.98)
11
HIGH RIPPLE-REJECTION LOW DROPOUT MIDDLE OUTPUT CURRENT CMOS VOLTAGE REGULATOR
Rev.4.1_02
S-1131 Series
VOUT
6. Output voltage temperature coefficient
Ta V
OUT
The shaded area in Figure 12 is the range where VOUT varies in the operation temperature range when
the output voltage temperature coefficient is 100 ppm/C.
Example of S-1131B28 typ. product
VOUT
[V]
0.28 mV/C
*1
VOUT(E)1
0.28 mV/C
40
25
85
Ta [C]
*1. VOUT(E)1 is the value of the output voltage measured at Ta = 25C.
Figure 12
A change in the temperature of the output voltage [mV/°C] is calculated using the following equation.
VOUT
Ta
VOUT
Ta VOUT
mV/°C *1 = VOUT(S)
V
[ ]
*2
ppm/°C *3 1000
[ ]
[
]
*1. Change in temperature of output voltage
*2. Set output voltage
*3. Output voltage temperature coefficient
12
HIGH RIPPLE-REJECTION LOW DROPOUT MIDDLE OUTPUT CURRENT CMOS VOLTAGE REGULATOR
Rev.4.1_02
S-1131 Series
Operation
1. Basic operation
Figure 13 shows the block diagram of the S-1131 Series.
The error amplifier compares the reference voltage (Vref) with feedback voltage (Vfb), which is the output
voltage resistance-divided by feedback resistors (Rs and Rf). It supplies the gate voltage necessary to
maintain the constant output voltage which is not influenced by the input voltage and temperature
change, to the output transistor.
VIN
*1
Current
supply
Error
VOUT
amplifier
Vref
Rf
Vfb
Reference voltage
circuit
Rs
VSS
*1. Parasitic diode
Figure 13
2. Output transistor
In the S-1131 Series, a low on-resistance P-channel MOS FET is used as the output transistor.
Be sure that VOUT does not exceed VIN 0.3 V to prevent the voltage regulator from being damaged due
to reverse current flowing from the VOUT pin through a parasitic diode to the VIN pin, when the potential
of VOUT became higher than VIN.
13
HIGH RIPPLE-REJECTION LOW DROPOUT MIDDLE OUTPUT CURRENT CMOS VOLTAGE REGULATOR
Rev.4.1_02
S-1131 Series
3. ON/OFF pin
In case of product with ON/OFF circuit, this pin starts and stops the regulator.
When the ON/OFF pin is set to OFF level, the entire internal circuit stops operating, and the built-in
P-channel MOS FET output transistor between the VIN pin and the VOUT pin is turned off, reducing
current consumption significantly. The VOUT pin becomes the Vss level due to the internally divided
resistance of several hundreds k between the VOUT pin and the VSS pin.
The structure of the ON/OFF pin is as shown in Figure 14. Since the ON/OFF pin is neither pulled down
nor pulled up internally, do not use it in the floating states. In addition, note that the current consumption
increases if a voltage of 0.3 V to VIN – 0.3 V is applied to the ON/OFF pin. When not using the ON/OFF
pin, connect it to the VSS pin in the product A type, and connect it to the VIN pin in B type.
Table 7
Product Type
ON/OFF Pin
“L”: ON
“H”: OFF
“L”: OFF
“H”: ON
Internal Circuit
Operate
Stop
VOUT Pin Voltage
Set value
Current Consumption
A
A
B
B
ISS1
ISS2
ISS2
ISS1
VSS level
VSS level
Set value
Stop
Operate
VIN
ON/OFF
VSS
Figure 14
Selection of Output Capacitor (CL)
The S-1131 Series performs phase compensation using the internal phase compensator in the IC and the
ESR (Equivalent Series Resistance) of the output capacitor to enable stable operation independent of
changes in the output load. Therefore, always place a capacitor (CL) of 2.2 F or more between the VOUT
pin and the VSS pin.
For stable operation of the S-1131 Series, it is essential to employ a capacitor whose ESR is within an
optimum range. Using a capacitor whose ESR is outside the optimum range (approximately 0.5 to 5 ),
whether larger or smaller, may cause an unstable output, resulting in oscillation. For this reason, a tantalum
electrolytic capacitor is recommended.
When a ceramic capacitor or an OS capacitor with a low ESR is used, it is necessary to connect an
additional resistor that serves as the ESR in series with the output capacitor. The required resistance value
is approximately 0.5 to 5 , which varies depending on the usage conditions, so perform sufficient
evaluation for selection. Ordinarily, around 1.0 is recommended.
Note that an aluminum electrolytic capacitor may increase the ESR at a low temperature, causing
oscillation. When using this kind of capacitor, perform thorough evaluation, including evaluation of
temperature characteristics.
14
HIGH RIPPLE-REJECTION LOW DROPOUT MIDDLE OUTPUT CURRENT CMOS VOLTAGE REGULATOR
Rev.4.1_02
S-1131 Series
Precautions
Wiring patterns for the VIN pin, the VOUT pin and GND should be designed so that the impedance is
low. When mounting an output capacitor between the VOUT pin and the VSS pin (CL) and a capacitor
for stabilizing the input between the VIN pin and the VSS pin (CIN), the distance from the capacitors to
these pins should be as short as possible.
Note that generally the output voltage may increase when a series regulator is used at low load current
(1.0 mA or less).
The S-1131 Series performs phase compensation by using an internal phase compensator and the ESR
of an output capacitor. Therefore, always place a capacitor of 2.2 F or more between the VOUT pin
and the VSS pin. A tantalum type capacitor is recommended. Moreover, to secure stable operation of
the S-1131 Series, it is necessary to employ a capacitor with an ESR within an optimum range (0.5 to
5 ). Using a capacitor whose ESR is outside the optimum range (approximately 0.5 to 5 ), whether
larger or smaller, may cause an unstable output, resulting in oscillation. Perform sufficient evaluation
under the actual usage conditions for selection, including evaluation of temperature characteristics.
The voltage regulator may oscillate when the impedance of the power supply is high and the input
capacitance is small or an input capacitor is not connected.
Overshoot may occur in the output voltage momentarily if the voltage is rapidly raised at power-on or
when the power supply fluctuates. Sufficiently evaluate the output voltage at power-on with the actual
device.
The application conditions for the input voltage, the output voltage, and the load current should not
exceed the package power dissipation.
Do not apply an electrostatic discharge to this IC that exceeds the performance ratings of the built-in
electrostatic protection circuit.
In determining the output current, attention should be paid to the output current value specified in Table
6 in “ Electrical Characteristics” and footnote *5 of the table.
ABLIC Inc. claims no responsibility for any disputes arising out of or in connection with any infringement
by products including this IC of patents owned by a third party.
15
HIGH RIPPLE-REJECTION LOW DROPOUT MIDDLE OUTPUT CURRENT CMOS VOLTAGE REGULATOR
Rev.4.1_02
S-1131 Series
Characteristics (Typical Data)
(1) Output voltage vs. Output current (when load current increases)
S-1131B15 (Ta = 25°C)
S-1131B30 (Ta = 25°C)
2.5
4
3.5
3
3.5 V
2.0 V
4.0 V
6.5 V
2.5 V
2
1.5
1
2.5
2
VIN = 3.3 V
1.5
1
6.5 V
V
IN = 1.8 V
200
0.5
0
0.5
0
0
400
600
800
0
200
400
600
800
IOUT [mA]
IOUT [mA]
S-1131B50 (Ta = 25°C)
6
5
6.5 V
VIN = 5.3 V
4
Remark In determining the output current, attention
should be paid to the following.
3
2
1
0
5.5 V
1) The minimum output current value and
footnote *5 of Table 6 in the “ Electrical
Characteristics”
6.0 V
400
2) The package power dissipation
0
200
600
800
IOUT [mA]
(2) Output voltage vs. Input voltage
S-1131B15 (Ta = 25°C)
S-1131B30 (Ta = 25°C)
3.05
1.6
50 mA
30 mA
I
OUT = 1 mA
50 mA
IOUT = 1 mA
3
2.95
2.9
1.55
1.5
30 mA
80 mA
80 mA
1.45
1.4
2.85
2.8
1
1.5
2
2.5
3
3.5
2.5
3
3.5
4
4.5
5
VIN [V]
VIN [V]
S-1131B50 (Ta = 25°C)
5.1
5.08
5.06
5.04
5.02
5
IOUT = 1 mA
30 mA
4.98
4.96
4.94
4.92
4.9
50 mA
80 mA
4.5
5
5.5
VIN [V]
6
6.5
7
16
HIGH RIPPLE-REJECTION LOW DROPOUT MIDDLE OUTPUT CURRENT CMOS VOLTAGE REGULATOR
Rev.4.1_02
S-1131 Series
(3) Dropout voltage vs. Output current
S-1131B15
S-1131B30
1.0
1.0
0.8
0.8
0.6
0.4
0.2
85C
25C
85C
0.6
0.4
0.2
0
25C
–40C
–40C
0
0
0
50 100
200 250 300 350
50 100
200 250 300 350
150
150
IOUT [mA]
IOUT [mA]
S-1131B50
1.0
0.8
0.6
0.4
0.2
85C
25C
–40C
200 250 300 350
0
0
50 100
150
IOUT [mA]
(4) Dropout voltage vs. Set output voltage
0.4
150 mA
0.35
0.3
100 mA
0.25
0.2
0.15
50 mA
0.1
30 mA
10 mA
0.05
0
0
1
2
3
4
5
6
7
VOUT(S) [V]
17
HIGH RIPPLE-REJECTION LOW DROPOUT MIDDLE OUTPUT CURRENT CMOS VOLTAGE REGULATOR
Rev.4.1_02
S-1131 Series
(5) Output voltage vs. Ambient temperature
S-1131B15
S-1131B30
3.1
1.6
3.05
1.55
3
1.5
2.95
1.45
2.9
1.4
80
60
100
40
40
0
0
20
40
20
60
80
20
20
40
100
Ta [C]
Ta [C]
S-1131B50
5.1
5.08
5.06
5.04
5.02
5
4.98
4.96
4.94
4.92
4.9
40
0
100
20
40
60
80
20
Ta [C]
(6) Current consumption vs. Input voltage
S-1131B15
S-1131B30
45
40
35
30
25
20
15
10
5
45
40
35
30
25
20
15
10
5
25°C
25°C
85°C
40°C
40°C
85°C
0
0
0
2
4
6
8
0
2
4
6
8
VIN [V]
VIN [V]
S-1131B50
45
40
35
30
25
20
15
10
5
85°C
25°C
40°C
0
0
2
4
6
8
VIN [V]
18
HIGH RIPPLE-REJECTION LOW DROPOUT MIDDLE OUTPUT CURRENT CMOS VOLTAGE REGULATOR
Rev.4.1_02
S-1131 Series
(7) Ripple rejection
S-1131B15 (Ta = 25°C)
VIN = 2.5 V, COUT = 2.2 F
S-1131B30 (Ta = 25°C)
VIN = 4.0 V, COUT = 2.2 F
100
80
60
40
20
0
100
80
IOUT = 1 mA
30 mA
IOUT = 1 mA
60
40
20
0
30 mA
80 mA
80 mA
100 k 1 M
10
100
1 k
10 k
100 k
1 M
10
100
1 k
10 k
Frequency [Hz]
Frequency [Hz]
S-1131B50 (Ta = 25°C)
VIN = 6.0 V, COUT = 2.2 F
100
80
IOUT = 1 mA
60
40
20
0
30 mA
80 mA
100 k
10
100
1 k
10 k
1 M
Frequency [Hz]
19
HIGH RIPPLE-REJECTION LOW DROPOUT MIDDLE OUTPUT CURRENT CMOS VOLTAGE REGULATOR
Rev.4.1_02
S-1131 Series
Reference Data
(1) Input transient response characteristics
IOUT = 80 mA, tr = tf = 5.0 s, COUT = 2.2 F, CIN = 0 F
IOUT = 80 mA, tr = tf = 5.0 s, COUT = 4.7 F, CIN = 0 F
3.02
6
5
3.02
6
5
3.015
3.01
3.015
4
3
2
1
0
3.01
3.005
3
4
3
2
1
0
VIN
VIN
3.005
VOUT
VOUT
3
2.995
2.99
2.995
2.99
-20
0
20
40
60
80 100 120 140 160 180
-20
0
20 40 60 80 100 120 140 160 180
t [s]
t [s]
(2) Load transient response characteristics
VIN = 4.0 V, COUT = 2.2 F, CIN = 1.0 F,
IOUT = 50 mA100 mA
VIN = 4.0 V, COUT = 4.7 F, CIN = 1.0 F,
IOUT = 50 mA100 mA
3.2
150
100
3.2
150
100
3.15
3.1
3.15
50
0
3.1
3.05
3
50
0
I
OUT
3.05
3
I
OUT
-50
-50
V
OUT
V
OUT
2.95
2.9
-100
-150
2.95
2.9
-100
-150
-2
0
2
4
6
8
10 12 14 16 18
-2
0
2
4
6
8
10 12 14 16 18
t [s]
t [s]
(3) ON/OFF pin transient response characteristics
S-1131B15 (Ta = 25°C)
VIN = 2.5 V, COUT = 2.2 F, CIN = 1.0 F
S-1131B30 (Ta = 25°C)
VIN = 4.0 V, COUT = 2.2 F, CIN = 1.0 F
2.5
3
2
5
6
4
2
4
3
VON/OFF
1.5
1
1
0
2
0
VOUT
2
VON/OFF
VOUT
0.5
0
-1
-2
-3
1
0
-2
-4
-6
-0.5
-1
-10
0
10 20 30 40 50 60 70 80 90
-10
0
10 20 30 40 50 60 70 80 90
t [s]
t [s]
S-1131B50 (Ta = 25°C)
VIN = 6.0 V, COUT = 2.2 F, CIN = 1.0 F
7
8
6
6
4
VON/OFF
5
4
3
2
1
0
VOUT
2
0
-2
-4
-6
-8
-10
0
10 20 30
40 50 60 70 80 90
-1
t [s]
20
4.5±0.1
1.6±0.2
1.5±0.1
45°
1
2
3
1.5±0.1 1.5±0.1
0.4±0.05
0.4±0.1
0.4±0.1
0.45±0.1
No. UP003-A-P-SD-2.0
TITLE
SOT893-A-PKG Dimensions
UP003-A-P-SD-2.0
No.
ANGLE
UNIT
mm
ABLIC Inc.
4.0±0.1(10 pitches : 40.0±0.2)
+0.1
-0
ø1.5
2.0±0.05
0.3±0.05
2.0±0.1
+0.1
-0
ø1.5
8.0±0.1
4.75±0.1
Feed direction
No. UP003-A-C-SD-2.0
TITLE
SOT893-A-Carrier Tape
UP003-A-C-SD-2.0
No.
ANGLE
UNIT
mm
ABLIC Inc.
16.5max.
13.0±0.3
Enlarged drawing in the central part
(60°)
(60°)
No. UP003-A-R-SD-1.1
TITLE
SOT893-A-Reel
UP003-A-R-SD-1.1
No.
1,000
ANGLE
UNIT
QTY.
mm
ABLIC Inc.
4.5±0.1
1.6±0.2
1.5±0.1
5
4
0.3
45°
1
2
3
1.5±0.1 1.5±0.1
0.4±0.05
0.4±0.1
0.4±0.1
0.45±0.1
No. UP005-A-P-SD-2.0
SOT895-A-PKG Dimensions
UP005-A-P-SD-2.0
TITLE
No.
ANGLE
mm
UNIT
ABLIC Inc.
4.0±0.1(10 pitches : 40.0±0.2)
+0.1
-0
ø1.5
2.0±0.05
+0.1
-0
0.3±0.05
2.0±0.1
8.0±0.1
ø1.5
4.75±0.1
3
4
2
1
5
Feed direction
No. UP005-A-C-SD-2.0
TITLE
SOT895-A-Carrier Tape
UP005-A-C-SD-2.0
No.
ANGLE
mm
UNIT
ABLIC Inc.
16.5max.
13.0±0.3
Enlarged drawing in the central part
(60°)
(60°)
No. UP005-A-R-SD-1.1
TITLE
SOT895-A-Reel
UP005-A-R-SD-1.1
No.
ANGLE
QTY.
1,000
mm
UNIT
ABLIC Inc.
+0.1
-0.05
0.80
2.90±0.1
(1.5)
0.15±0.05
0.5typ.
+0.1
-0.05
0.30
The exposed thermal die pad has different
electric potential depending on the product.
Confirm specifications of each product.
Do not use it as the function of electrode.
0.95±0.05
No. PD006-A-P-SD-5.0
TITLE
HSON6A-A-PKG Dimensions
PD006-A-P-SD-5.0
No.
ANGLE
UNIT
mm
ABLIC Inc.
1.5±0.1
4.0±0.1
2.0±0.05
ø1.55±0.05
0.2±0.05
ø1.05±0.05
4.0±0.1
3.3±0.1
3
1
6
4
Feed direction
No. PD006-A-C-SD-2.0
TITLE
HSON6A-A-Carrier Tape
PD006-A-C-SD-2.0
No.
ANGLE
UNIT
mm
ABLIC Inc.
12.5max.
9.0±0.3
Enlarged drawing in the central part
ø13±0.2
(60°)
(60°)
No. PD006-A-R-SD-1.0
TITLE
HSON6A-A-Reel
PD006-A-R-SD-1.0
No.
ANGLE
UNIT
QTY.
3,000
mm
ABLIC Inc.
Disclaimers (Handling Precautions)
1. All the information described herein (product data, specifications, figures, tables, programs, algorithms and
application circuit examples, etc.) is current as of publishing date of this document and is subject to change without
notice.
2. The circuit examples and the usages described herein are for reference only, and do not guarantee the success of
any specific mass-production design.
ABLIC Inc. is not liable for any losses, damages, claims or demands caused by the reasons other than the products
described herein (hereinafter "the products") or infringement of third-party intellectual property right and any other
right due to the use of the information described herein.
3. ABLIC Inc. is not liable for any losses, damages, claims or demands caused by the incorrect information described
herein.
4. Be careful to use the products within their ranges described herein. Pay special attention for use to the absolute
maximum ratings, operation voltage range and electrical characteristics, etc.
ABLIC Inc. is not liable for any losses, damages, claims or demands caused by failures and / or accidents, etc. due to
the use of the products outside their specified ranges.
5. Before using the products, confirm their applications, and the laws and regulations of the region or country where they
are used and verify suitability, safety and other factors for the intended use.
6. When exporting the products, comply with the Foreign Exchange and Foreign Trade Act and all other export-related
laws, and follow the required procedures.
7. The products are strictly prohibited from using, providing or exporting for the purposes of the development of
weapons of mass destruction or military use. ABLIC Inc. is not liable for any losses, damages, claims or demands
caused by any provision or export to the person or entity who intends to develop, manufacture, use or store nuclear,
biological or chemical weapons or missiles, or use any other military purposes.
8. The products are not designed to be used as part of any device or equipment that may affect the human body, human
life, or assets (such as medical equipment, disaster prevention systems, security systems, combustion control
systems, infrastructure control systems, vehicle equipment, traffic systems, in-vehicle equipment, aviation equipment,
aerospace equipment, and nuclear-related equipment), excluding when specified for in-vehicle use or other uses by
ABLIC, Inc. Do not apply the products to the above listed devices and equipments.
ABLIC Inc. is not liable for any losses, damages, claims or demands caused by unauthorized or unspecified use of
the products.
9. In general, semiconductor products may fail or malfunction with some probability. The user of the products should
therefore take responsibility to give thorough consideration to safety design including redundancy, fire spread
prevention measures, and malfunction prevention to prevent accidents causing injury or death, fires and social
damage, etc. that may ensue from the products' failure or malfunction.
The entire system in which the products are used must be sufficiently evaluated and judged whether the products are
allowed to apply for the system on customer's own responsibility.
10. The products are not designed to be radiation-proof. The necessary radiation measures should be taken in the
product design by the customer depending on the intended use.
11. The products do not affect human health under normal use. However, they contain chemical substances and heavy
metals and should therefore not be put in the mouth. The fracture surfaces of wafers and chips may be sharp. Be
careful when handling these with the bare hands to prevent injuries, etc.
12. When disposing of the products, comply with the laws and ordinances of the country or region where they are used.
13. The information described herein contains copyright information and know-how of ABLIC Inc. The information
described herein does not convey any license under any intellectual property rights or any other rights belonging to
ABLIC Inc. or a third party. Reproduction or copying of the information from this document or any part of this
document described herein for the purpose of disclosing it to a third-party is strictly prohibited without the express
permission of ABLIC Inc.
14. For more details on the information described herein or any other questions, please contact ABLIC Inc.'s sales
representative.
15. This Disclaimers have been delivered in a text using the Japanese language, which text, despite any translations into
the English language and the Chinese language, shall be controlling.
2.4-2019.07
www.ablic.com
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