S-L2980A23MC-TF-X [ABLIC]
HIGH RIPPLE-REJECTION AND LOW DROPOUT CMOS VOLTAGE REGULATOR;
| 型号： | S-L2980A23MC-TF-X |
| 厂家： | 
ABLIC |
| 描述： | HIGH RIPPLE-REJECTION AND LOW DROPOUT CMOS VOLTAGE REGULATOR |
| 文件： | 总23页 (文件大小：447K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
S-L2980 Series
HIGH RIPPLE-REJECTION AND LOW DROPOUT
CMOS VOLTAGE REGULATOR
www.ablic.com
© ABLIC Inc., 2001-2012
Rev.5.1_02
The S-L2980 Series is a positive voltage regulator with a low dropout voltage, high output voltage accuracy, and
low current consumption developed based on CMOS technology.
A built-in low on-resistance transistor provides a low dropout voltage and a large output current. A ON/OFF
circuit ensures long battery life.
Various types of output capacitors can be used in the S-L2980 Series compared with the conventional CMOS
voltage regulators. A small ceramic capacitor can also be used.
Features
1.5 V to 6.0 V, selectable in 0.1 V steps
±2.0 %
Output voltage:
Output voltage accuracy:
Dropout voltage:
120 mV typ. (3.0 V output product, IOUT=50 mA)
During operation: 90 A typ., 140 A max.
During power-off: 0.1 A typ., 1.0 A max.
Possible to output 150 mA (VINVOUT(S)+1.0 V)*1
A ceramic capacitor of 1.0 F or more can be used.
(A ceramic capacitor of 2.2 F or more can be used for the products whose
output voltage is 1.7 V or less.)
Current consumption:
Output current:
Output capacitor:
70 dB typ. (f=1.0 kHz)
Ripple rejection:
Ensures long battery life.
Ta=–40°C to +85°C
Built-in ON/OFF circuit:
Operation temperature range:
Lead-free, Sn 100%, halogen-free*2
*1. Attention should be paid to the power dissipation of the package when the load is large.
*2. Refer to “ Product Name Structure” for details.
Applications
Power supply for battery-powered device
Power supply for personal communication device
Power supply for home electric appliance
Power supply for cellular phone
Package
SOT-23-5
1
HIGH RIPPLE-REJECTION AND LOW DROPOUT CMOS VOLTAGE REGULATOR
S-L2980 Series
Rev.5.1_02
Block Diagram
*1
VIN
VOUT
ON/OFF circuit
ON/OFF
Reference
voltage circuit
VSS
*1. Parasitic diode
Figure 1
2
HIGH RIPPLE-REJECTION AND LOW DROPOUT CMOS VOLTAGE REGULATOR
S-L2980 Series
Rev.5.1_02
Product Name Structure
The product types and output voltage for S-L2980 Series can be selected at the user’s request. Refer to
the “1. Product Name” for the meanings of the characters in the product name, “2. Package” regarding
the package drawings and “3. Product Name List” for the full product names.
1. Product Name
S-L2980
x
xx MC
-
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
Package name (abbreviation)
MC: SOT-23-5
Output voltage
15 to 60
(e.g. when the output voltage is 1.5 V,
it is expressed as 15.)
Product type*2
A: ON/OFF pin positive logic
B: ON/OFF pin negative logic
*1. Refer to the tape drawing.
*2. Refer to the “3. ON/OFF Pin” in the “ Operation”.
2. Package
Drawing Code
Tape
Package Name
Package
Reel
SOT-23-5
MP005-A-P-SD
MP005-A-C-SD
MP005-A-R-SD
3
HIGH RIPPLE-REJECTION AND LOW DROPOUT CMOS VOLTAGE REGULATOR
S-L2980 Series
Rev.5.1_02
3. Product Name List
Table 1
Output Voltage
1.5 V ±2.0 %
1.6 V ±2.0 %
1.7 V ±2.0 %
1.8 V ±2.0 %
1.9 V ±2.0 %
2.0 V ±2.0 %
2.1 V ±2.0 %
2.2 V ±2.0 %
2.3 V ±2.0 %
2.4 V ±2.0 %
2.5 V ±2.0 %
2.6 V ±2.0 %
2.7 V ±2.0 %
2.8 V ±2.0 %
2.9 V ±2.0 %
3.0 V ±2.0 %
3.1 V ±2.0 %
3.2 V ±2.0 %
3.3 V ±2.0 %
3.4 V ±2.0 %
3.5 V ±2.0 %
3.6 V ±2.0 %
3.7 V ±2.0 %
3.8 V ±2.0 %
3.9 V ±2.0 %
4.0 V ±2.0 %
4.1 V ±2.0 %
4.2 V ±2.0 %
4.3 V ±2.0 %
4.4 V ±2.0 %
4.5 V ±2.0 %
4.6 V ±2.0 %
4.7 V ±2.0 %
4.8 V ±2.0 %
4.9 V ±2.0 %
5.0 V ±2.0 %
5.1 V ±2.0 %
5.2 V ±2.0 %
5.3 V ±2.0 %
5.4 V ±2.0 %
5.5 V ±2.0 %
5.6 V ±2.0 %
5.7 V ±2.0 %
5.8 V ±2.0 %
5.9 V ±2.0 %
6.0 V ±2.0 %
SOT-23-5
S-L2980A15MC-TF-x
S-L2980A16MC-TF-x
S-L2980A17MC-TF-x
S-L2980A18MC-TF-x
S-L2980A19MC-TF-x
S-L2980A20MC-TF-x
S-L2980A21MC-TF-x
S-L2980A22MC-TF-x
S-L2980A23MC-TF-x
S-L2980A24MC-TF-x
S-L2980A25MC-TF-x
S-L2980A26MC-TF-x
S-L2980A27MC-TF-x
S-L2980A28MC-TF-x
S-L2980A29MC-TF-x
S-L2980A30MC-TF-x
S-L2980A31MC-TF-x
S-L2980A32MC-TF-x
S-L2980A33MC-TF-x
S-L2980A34MC-TF-x
S-L2980A35MC-TF-x
S-L2980A36MC-TF-x
S-L2980A37MC-TF-x
S-L2980A38MC-TF-x
S-L2980A39MC-TF-x
S-L2980A40MC-TF-x
S-L2980A41MC-TF-x
S-L2980A42MC-TF-x
S-L2980A43MC-TF-x
S-L2980A44MC-TF-x
S-L2980A45MC-TF-x
S-L2980A46MC-TF-x
S-L2980A47MC-TF-x
S-L2980A48MC-TF-x
S-L2980A49MC-TF-x
S-L2980A50MC-TF-x
S-L2980A51MC-TF-x
S-L2980A52MC-TF-x
S-L2980A53MC-TF-x
S-L2980A54MC-TF-x
S-L2980A55MC-TF-x
S-L2980A56MC-TF-x
S-L2980A57MC-TF-x
S-L2980A58MC-TF-x
S-L2980A59MC-TF-x
S-L2980A60MC-TF-x
Remark 1. Please contact our sales office for type B products.
2. x: G or U
3. Please select products of environmental code = U for Sn 100%, halogen-free products.
4
HIGH RIPPLE-REJECTION AND LOW DROPOUT CMOS VOLTAGE REGULATOR
S-L2980 Series
Rev.5.1_02
Pin Configuration
Table 2
Symbol
VIN
VSS
SOT-23-5
Top view
Pin No.
Pin Description
Input voltage pin
GND pin
ON/OFF pin
No connection
Output voltage pin
1
2
3
4
5
5
4
ON/OFF
NC*1
VOUT
*1. The NC pin is electrically open.
The NC pin can be connected to VIN or VSS.
1
2
3
Figure 2
Absolute Maximum Ratings
Table 3
(Ta=25 C unless otherwise specified)
Item
Symbol
VIN
VON/OFF
VOUT
PD
Absolute Maximum Rating
VSS–0.3 to VSS+12
VSS–0.3 to VSS+12
VSS–0.3 to VIN+0.3
300 (When not mounted on board)
600*1
Unit
V
V
Input voltage
Output voltage
Power dissipation
V
mW
mW
C
C
Operation ambient temperature
Storage temperature
Topr
Tstg
–40 to +85
–40 to +125
*1. When mounted on board
[Mounted board]
(1) Board size : 114.3 mm 76.2 mm t1.6 mm
(2) Board name : JEDEC STANDARD51-7
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.
700
600
500
400
300
200
100
0
100
Ambient Temperature (Ta) [C]
Figure 3 Power Dissipation of Package (When Mounted on Board)
150
50
0
5
HIGH RIPPLE-REJECTION AND LOW DROPOUT CMOS VOLTAGE REGULATOR
S-L2980 Series
Rev.5.1_02
Electrical Characteristics
Table 4
(Ta=25 C unless otherwise specified)
Test
Item
Symbol
VOUT(E)
Condition
Min.
Typ.
Max.
Unit
circuit
1
VOUT(S) VOUT(S) VOUT(S)
Output voltage*1
VIN =VOUT(S)+1.0 V, IOUT=50 mA
V
0.98
1.02
Output current*2
Dropout voltage*3
IOUT
Vdrop
VIN
VOUT(S)+1.0 V
150*5
mA
V
V
V
V
3
1
1
1
1
1
1
IOUT = 50 mA
1.5 V
1.8 V
2.0 V
2.5 V
3.0 V
3.3 V
VOUT(S)
VOUT(S)
VOUT(S)
VOUT(S)
VOUT(S)
VOUT(S)
1.7 V
1.9 V
2.4 V
2.9 V
3.2 V
6.0 V
0.17
0.16
0.15
0.13
0.12
0.11
0.33
0.29
0.26
0.20
0.15
0.14
V
V
∆VOUT1
Line regulation
Load regulation
V
OUT(S)+0.5 V
VIN=VOUT(S)+1.0 V, 1.0 mA
VIN=VOUT(S)+1.0 V, IOUT =50 mA,
VIN
10 V, IOUT=50 mA
0.05
12
0.2
40
%/V
1
1
1
∆VINVOUT
VOUT2
IOUT 80 mA
mV
∆VOUT
ppm/
C
Output voltage
100
temperature coefficient*4
–40 Ta 85
C
C
∆Ta VOUT
Current consumption
during operation
Current consumption
during power-off
Input voltage
ON/OFF pin
input voltage “H”
ON/OFF pin
input voltage “L”
ON/OFF pin
input current “H”
ON/OFF pin
VIN=VOUT(S)+1.0 V, ON/OFF pin=ON,
No load
VIN=VOUT(S)+1.0 V, ON/OFF pin =OFF,
No load
ISS1
90
140
A
2
ISS2
VIN
2.0
1.5
0.1
1.0
10
A
2
4
V
VSH
VIN=VOUT(S)+1.0 V, RL=1.0 k
V
V
VSL
ISH
VIN=VOUT(S)+1.0 V, RL=1.0 k
0.3
0.1
0.1
4
4
4
VIN=VOUT(S)+1.0 V, VON/OFF=7.0 V
VIN=VOUT(S)+1.0 V, VON/OFF=0 V
–0.1
–0.1
A
ISL
A
input current “L”
RR
Ripple rejection
1.5 V
3.4 V
5.1 V
VOUT(S)
VOUT(S)
VOUT(S)
3.3 V
5.0 V
6.0 V
70
65
60
dB
dB
dB
5
5
5
VIN=VOUT(S)+1.0 V,
f = 1.0 kHz,
Vrip=0.5 V rms,
IOUT=50 mA
*1. VOUT(S): Set output voltage
OUT(E): Actual output voltage at the fixed load
The output voltage when fixing IOUT(=50 mA) and inputting VOUT(S)+1.0 V
V
*2. Output current at which output voltage becomes 95 % of VOUT after gradually increasing output current.
*3. Vdrop=VIN1(VOUT×0.98)
VIN1 is the input voltage at which output voltage becomes 98 % of VOUT after gradually decreasing input voltage.
*4. Temperature change ratio in the output voltage [mV/°C] is calculated by using the following equation.
VOUT
Ta
VOUT
TaVOUT
mV/°C *1 = VOUT(S)
V
[ ]
*2
ppm/°C *3 1000
[ ]
[
]
*1. Temperature change ratio of the output voltage
*2. Set output voltage
*3. Output voltage temperature coefficient
*5. The output current can be supplied at least to 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 load is large.
This specification is guaranteed by design.
6
HIGH RIPPLE-REJECTION AND LOW DROPOUT CMOS VOLTAGE REGULATOR
S-L2980 Series
Rev.5.1_02
Test Circuits
1.
VIN
VOUT
VSS
A
V
ON/OFF
Set to ON
Figure 4
2.
VIN
VOUT
VSS
A
ON/OFF
Set to
VIN or GND
Figure 5
3.
VIN
VOUT
VSS
A
V
ON/OFF
Set to ON
Figure 6
4.
VIN
VOUT
VSS
V
RL
A
ON/OFF
Figure 7
5.
VIN
VOUT
VSS
ON/OFF
RL
V
Set to ON
Figure 8
7
HIGH RIPPLE-REJECTION AND LOW DROPOUT CMOS VOLTAGE REGULATOR
S-L2980 Series
Rev.5.1_02
Standard Circuit
OUTPUT
INPUT
VIN
VOUT
*1
*2
CIN
CL
ON/OFF
VSS
GND
Single GND
*1. CIN is a capacitor used to stabilize input.
*2. A ceramic capacitor of 1.0 F or more can be used for CL, provided that a ceramic capacitor of
2.2 F or more can be used for the product whose output voltage is 1.7 V or less.
Figure 9
Caution The above connection diagram and constant will not guarantees successful operation.
Perform through evaluation using the actual application to set the constant.
Application Conditions
Input capacitor (CIN):
Input series resistance (RIN):
Output capacitor (CL):
0.47 F or more
10 or less
1.0 F or more*1
Equivalent Series Resistance (ESR) for output capacitor: 10 or less
*1. If the product whose output voltage is 1.7 V or less will be used, the capacitance should be 2.2 F or
more.
Caution Generally a series regulator may cause oscillation, depending on the selection of external
parts. Confirm that no oscillation occurs in the application for which the above capacitors
are used.
8
HIGH RIPPLE-REJECTION AND LOW DROPOUT CMOS VOLTAGE REGULATOR
S-L2980 Series
Rev.5.1_02
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. Low ESR
Low ESR means the Equivalent Series Resistance of a capacitor is small. The low ESR ceramics
output capacitor (CL) can be used in the S-L2980 Series. A capacitor whose ESR is 10 or less
can be used.
3. Output Voltage (VOUT
)
The accuracy of the output voltage is ensured at 2.0 % under the specified conditions of fixed input
voltage*1, fixed output current, and fixed temperature.
*1. Differs depending upon 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 the “ Electrical Characteristics” and
“ Typical Characteristics” for details.
∆VOUT1
4.Line Regulation
∆VIN VOUT
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.
5. 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.
6. Dropout Voltage (Vdrop
)
Indicates the difference between the input voltage (VIN1) and output voltage when the output voltage
falls to 98 % of the output voltage (VOUT(E)) by gradually decreasing the input voltage.
Vdrop=VIN1–(VOUT(E)×0.98)
9
HIGH RIPPLE-REJECTION AND LOW DROPOUT CMOS VOLTAGE REGULATOR
S-L2980 Series
Rev.5.1_02
VOUT
7. Output Voltage Temperature Coefficient
TaV
OUT
The shaded area in Figure 10 is the range where VOUT varies in operation temperature range when the
output voltage temperature coefficient is 100 ppm/C.
Example of S-L2980A28 typ. product
VOUT
[V]
0.28 mV/C
*1
VOUT(E)
0.28 mV/C
40
25
Ta [C]
85
*1.
V
OUT(E) is the value of the output voltage measured at Ta=25C.
Figure 10
A change in the temperature of the output voltage [mV/°C] is calculated using the following equation.
VOUT
Ta
VOUT
TaVOUT
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
10
HIGH RIPPLE-REJECTION AND LOW DROPOUT CMOS VOLTAGE REGULATOR
S-L2980 Series
Rev.5.1_02
Operation
1. Basic Operation
Figure 11 shows the block diagram of the S-L2980 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 11
2. Output Transistor
In the S-L2980 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 inverse current flowing from the VOUT pin through a parasitic diode to the VIN pin.
11
HIGH RIPPLE-REJECTION AND LOW DROPOUT CMOS VOLTAGE REGULATOR
S-L2980 Series
Rev.5.1_02
3. ON/OFF Pin
This pin starts and stops the regulator.
When the ON/OFF pin is set to OFF level, the operation of all internal circuits stops, the built-in P-
channel MOS FET output transistor between VIN pin and VOUT pin is turned off to make current
consumption drastically reduced. The VOUT pin becomes the VSS level due to internally divided
resistance of several hundreds k between the VOUT pin and VSS pin.
Furthermore, the structure of the ON/OFF pin is as shown in Figure 12. Since the ON/OFF pin is
neither pulled down nor pulled up internally, do not use it in the floating state. In addition, please note
that current consumption increases if a voltage of 0.3 V to VIN–0.3 V is applied to the ON/OFF pin.
When the ON/OFF pin is not used, connect it to the VIN pin in case the product type is “A” and to the
VSS pin in case of “B”.
Table 5
Product Type
ON/OFF Pin
“H”: ON
“L”: OFF
“H”: OFF
“L”: 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 12
Selection of Output Capacitor (CL)
The S-L2980 Series needs an output capacitor between VOUT pin and VSS pin for phase compensation.
A ceramic capacitor whose capacitance is 1.0 F or more*1 can be used. When an OS (Organic Semi-
conductor) capacitor, a tantalum capacitor or an aluminum electrolyte capacitor is used, the capacitance
should be 2.2 F or more and the ESR should be 10 or less.
The value of the output overshoot or undershoot transient response varies depending on the value of the
output capacitor.
Sufficient evaluation including temperature dependency in the actual environment is needed.
*1. If the product whose output voltage is 1.7 V or less will be used, the capacitance should be 2.2 F
or more.
12
HIGH RIPPLE-REJECTION AND LOW DROPOUT CMOS VOLTAGE REGULATOR
S-L2980 Series
Rev.5.1_02
Precautions
Wiring patterns for VIN pin, VOUT pin and GND pin should be designed to hold low impedance. When
mounting an output capacitor between the VOUT and VSS pins (CL) and a capacitor for stabilizing the
input between VIN and VSS pins (CIN), the distance from the capacitors to these pins should be as short
as possible.
Note that output voltage may increase when a series regulator is used at low load current (1.0 mA or less).
Generally a series regulator may cause oscillation, depending on the selection of external parts. The
following conditions are recommended for this IC. However, be sure to perform sufficient evaluation under
the actual usage conditions for selection, including evaluation of temperature characteristics.
Input capacitor (CIN):
Output capacitor (CL):
0.47 F or more
1.0 F or more*1
Equivalent Series Resistance (ESR): 10 or less
Input series resistance (RIN): 10 or less
*1. If the product whose output voltage will be is 1.7 V or less is used, the capacitance should be 2.2 F
or more.
A voltage regulator may oscillate when the impedance of the power supply is high and the input capacitor
is small or 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 condition for input voltage, output voltage and 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 output current attention should be paid to the output current value specified in the Table 4
for “ Electrical Characteristics” and the footnote *5.
ABLIC Inc. claims no responsibility for any and all disputes arising out of or in connection with any
infringement of the products including this IC upon patents owned by a third party.
13
HIGH RIPPLE-REJECTION AND LOW DROPOUT CMOS VOLTAGE REGULATOR
S-L2980 Series
Rev.5.1_02
Typical Characteristics
1. Output Voltage versus Output Current (When Load Current Increases)
S-L2980A15 (Ta=25°C)
2.0
S-L2980A30 (Ta=25°C)
3.5
5.0 V
4.0 V
10 V
3.0
2.5
1.5
VIN=3.3 V
2.0
2.5 V
3.0 V
1.0
3.5 V
10 V
VIN=1.8 V
1.5
1.0
0.5
0.0
2.0 V
0.5
0.0
0
100
200
300
400
500
0
100
200
300
400
500
IOUT [mA]
IOUT [mA]
S-L2980A50 (Ta=25°C)
6.0
5.0
VIN=5.3 V
4.0
7.0 V
Remark In determining output current, attention
5.5 V
3.0
10 V
should be paid to the followings.
2.0
1.0
0.0
6.0 V
1) The minimum output current value
and footnote *5 in the Table 4 for the
“ Electrical Characteristics”.
2) The package power dissipation
0
100
200
300
400
500
I
OUT [mA]
2. Maximum Output Current versus Input Voltage
S-L2980A15 (Short-circuit protection included)
500
S-L2980A30 (Short-circuit protection included)
500
Ta=–40°C
400
Ta=–40°C
400
300
300
200
25°C
200
100
0
85°C
8
25°C
100
0
85°C
8
0
2
4
6
10
2
4
6
10
VIN [V]
VIN [V]
S-L2980A50 (Short circuit protection included)
500
Ta=–40°C
400
300
Remark In determining output current, attention
25°C
85°C
should be paid to the followings.
200
100
0
1) The minimum output current value
and footnote *5 in the Table 4 for the
“ Electrical Characteristics”.
2) The package power dissipation
4
6
8
10
VIN [V]
14
HIGH RIPPLE-REJECTION AND LOW DROPOUT CMOS VOLTAGE REGULATOR
S-L2980 Series
Rev.5.1_02
3. Output Voltage versus Input Voltage
S-L2980A15 (Ta=25°C)
1.60
S-L2980A30 (Ta=25°C)
3.15
3.10
1.55
IOUT=1.0 mA
IOUT=1.0 mA
3.05
3.00
2.95
2.90
2.85
1.50
100 mA
50 mA
100 mA
50 mA
30 mA
1.45
30 mA
1.40
1.0
1.5
2.0
2.5
3.0
3.5
2.5
3.0
3.5
4.0
4.5
5.0
V
IN [V]
VIN [V]
S-L2980A50 (Ta=25°C)
5.20
5.10
IOUT=1.0 mA
5.00
4.90
4.80
100 mA
50 mA
30 mA
4.5
5.0
5.5
6.0
IN [V]
6.5
7.0
V
4. Dropout Voltage versus Output Voltage
S-L2980A15
600
S-L2980A30
400
85°C
85°C
350
300
250
200
150
100
50
500
25°C
400
25°C
300
200
Ta=–40°C
100
Ta=–40°C
100
0
0
0
50
100
IOUT [mA]
150
0
50
150
IOUT [mA]
S-L2980A50
350
85°C
300
250
200
150
100
50
25°C
Ta=–40°C
100
0
0
50
150
IOUT [mA]
15
HIGH RIPPLE-REJECTION AND LOW DROPOUT CMOS VOLTAGE REGULATOR
S-L2980 Series
Rev.5.1_02
5. Output Voltage versus Ambient Temperature
S-L2980A15
1.53
S-L2980A30
3.06
1.52
1.51
1.50
1.49
1.48
1.47
3.04
3.02
3.00
2.98
2.96
2.94
–50
0
50
100
–50
0
50
100
Ta [°C]
Ta [°C]
S-L2980A50
5.10
5.05
5.00
4.95
4.90
–50
0
50
100
Ta [°C]
6. Line Regulation versus Ambient Temperature
7. Load Regulation versus Ambient Temperature
S-L2980Axx
S-L2980Axx
C =4.7 F, C =10 F
IN
L
C =4.7 F, C =10 F
IN
L
40
30
20
10
0
40
30
20
10
0
S-L2980A30
S-L2980A50
S-L2980A15
S-L2980A15
S-L2980A50
S-L2980A30
50
–50
0
100
–50
0
50
100
Ta [°C]
Ta [°C]
16
HIGH RIPPLE-REJECTION AND LOW DROPOUT CMOS VOLTAGE REGULATOR
S-L2980 Series
Rev.5.1_02
8. Threshold Voltage of ON/OFF Pin versus Input Voltage
S-L2980A15
RL=100 , CIN=4.7 F, CL=10 F
1.5
Ta = −40°C
25°C
85°C
85°C
1.0
0.5
0.0
25°C
Ta =
−
40°C
10
4
2
8
0
6
V
IN [V]
9. Current Consumption versus Input Voltage
S-L2980A15
100
S-L2980A30
100
80
80
60
40
20
85°C
25°C
25°C
85°C
60
40
20
0
Ta=–40°C
Ta=–40°C
0
0
0
2
4
6
8
2
4
6
8
10
10
VIN [V]
VIN [V]
S-L2980A50
100
80
60
40
20
85°C
25°C
Ta=–40°C
0
0
2
4
6
8
10
VIN [V]
10. Ripple Rejection
S-L2980A30 (Ta=25°C)
S-L2980A50 (Ta=25°C)
VIN=4.0 V, CL=2.2 F
VIN=6.0 V, CL=2.2 F
100
80
60
40
20
0
100
80
60
40
20
0
IOUT=1 mA
IOUT=1 mA
50 mA
50 mA
100
100
10
10
1 k
10 k
1 M
1 k
10 k
1 M
100 k
100 k
Frequency [Hz]
Frequency [Hz]
17
HIGH RIPPLE-REJECTION AND LOW DROPOUT CMOS VOLTAGE REGULATOR
S-L2980 Series
Rev.5.1_02
Reference Data
1. Transient Response Characteristics (S-L2980A30MC, Typical data, Ta=25C)
Input voltage
or
Load current
Overshoot
Output voltage
Undershoot
1-1. Power Source Fluctuation
Overshoot
Undershoot
VIN, VON/OFF=5.04.0 V, IOUT=1.0 mA
VIN, VON/OFF=4.0 5.0 V, IOUT=1.0 mA
VIN
3.10
3.05
3.10
3.05
3.0
5.0
5.0
4.0
VIN
4.0
VOUT
VOUT
3.0
CL=2.2 F
CL=2.2 F
TIME (20 s / div.)
TIME (20 s / div.)
Overshoot
Undershoot
VIN, VON/OFF=4.05.0 V, IOUT=50 mA
VIN, VON/OFF=5.04.0 V, IOUT=50 mA
VIN
3.10
3.05
3.0
5.0
3.10
5.0
4.0
VIN
4.0
3.05
3.0
VOUT
VOUT
CL=2.2 F
CL=2.2 F
TIME (20 s / div.)
TIME (20 s / div.)
18
HIGH RIPPLE-REJECTION AND LOW DROPOUT CMOS VOLTAGE REGULATOR
S-L2980 Series
Rev.5.1_02
1-2. Load Fluctuation
Overshoot
Undershoot
VIN, VON/OFF=4.0 V, IOUT=1.0 mA50 mA
VIN, VON/OFF=4.0 V, IOUT=50 mA1.0 mA
IOUT
3.10
3.05
3.0
50
50
3.10
3.05
3.0
IOUT
1.0
1.0
VOUT
VOUT
CL=2.2 F
CL=2.2 F
TIME (20 s / div.)
TIME (20 s / div.)
1-3. ONOFF Switching (S-L2980A50MC, Typical data, Ta=25C)
Overshoot
Undershoot
VIN=6.0 V, RL=5.0 k, CL=2.2 F
VIN=6.0 V, RL=5.0 k, CL=2.2 F
7
6
5
4
3
2
1
0
7
6
5
4
3
2
1
0
VON/OFF
VON/OFF
VOUT
VOUT
TIME (20 s / div.)
TIME (20 s / div.)
19
2.9±0.2
1.9±0.2
4
5
+0.1
-0.06
1
2
3
0.16
0.95±0.1
0.4±0.1
No. MP005-A-P-SD-1.3
TITLE
SOT235-A-PKG Dimensions
MP005-A-P-SD-1.3
No.
ANGLE
UNIT
mm
ABLIC Inc.
4.0±0.1(10 pitches:40.0±0.2)
+0.1
-0
2.0±0.05
0.25±0.1
ø1.5
+0.2
-0
4.0±0.1
ø1.0
1.4±0.2
3.2±0.2
3
4
2 1
5
Feed direction
No. MP005-A-C-SD-2.1
TITLE
SOT235-A-Carrier Tape
MP005-A-C-SD-2.1
No.
ANGLE
UNIT
mm
ABLIC Inc.
12.5max.
9.0±0.3
Enlarged drawing in the central part
ø13±0.2
(60°)
(60°)
No. MP005-A-R-SD-1.1
TITLE
SOT235-A-Reel
MP005-A-R-SD-1.1
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 responsible for damages 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 responsible for damages caused by the incorrect information described herein.
4. Be careful to use the products within their specified ranges. Pay special attention to the absolute maximum ratings,
operation voltage range and electrical characteristics, etc.
ABLIC Inc. is not responsible for damages caused by failures and / or accidents, etc. that occur due to the use of the
products outside their specified ranges.
5. When 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 must not be used or provided (exported) for the purposes of the development of weapons of mass
destruction or military use. ABLIC Inc. is not responsible for any provision (export) to those whose purpose is to
develop, manufacture, use or store nuclear, biological or chemical weapons, missiles, or other military use.
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. Do
not apply the products to the above listed devices and equipments without prior written permission by ABLIC Inc.
Especially, the products cannot be used for life support devices, devices implanted in the human body and devices
that directly affect human life, etc.
Prior consultation with our sales office is required when considering the above uses.
ABLIC Inc. is not responsible for damages caused by unauthorized or unspecified use of our products.
9. 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 must be sufficiently evaluated and applied 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 without the express permission
of ABLIC Inc. is strictly prohibited.
14. For more details on the information described herein, contact our sales office.
2.2-2018.06
www.ablic.com
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