S-1155B33-U5T1X [ABLIC]
HIGH RIPPLE-REJECTION LOW DROPOUT HIGH OUTPUT CURRENT CMOS VOLTAGE REGULATOR;
| 型号： | S-1155B33-U5T1X |
| 厂家： | 
ABLIC |
| 描述： | HIGH RIPPLE-REJECTION LOW DROPOUT HIGH OUTPUT CURRENT CMOS VOLTAGE REGULATOR 输出元件 |
| 文件： | 总28页 (文件大小：515K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
S-1155 Series
HIGH RIPPLE-REJECTION LOW DROPOUT
HIGH OUTPUT CURRENT CMOS VOLTAGE REGULATOR
www.ablic.com
© ABLIC Inc., 2007-2015
Rev.2.1_03
The S-1155 Series, developed by using CMOS technology, is a positive voltage regulator with a super low dropout voltage,
high-accuracy output voltage and low current consumption.
The S-1155 Series provides the very low dropout voltage and the large output current due to the built-in transistor with low
on-resistance. The S-1155 Series includes an overcurrent protection circuit that prevents the load current from exceeding
the current capacitance of the output transistor, a thermal shutdown circuit that prevents damage due to overheating, and
an inrush current limit circuit to limit the excessive inrush current generated at power-on.
The ON/OFF circuit ensures longer battery life. Compared with the voltage regulators using the conventional CMOS
technology, a large variety of capacitors are available, including small ceramic capacitors
The small package SOT-89-5 realizes high-density mounting.
Features
Output voltage:
Input voltage:
1.0 V to 5.0 V, selectable in 0.05 V step
1.5 V to 5.5 V
Output voltage accuracy:
Dropout voltage:
Current consumption:
1.0% (1.0 V to 1.45 V output product: 15 mV)
70 mV typ. (3.0 V output product, IOUT = 200 mA)
During operation: 70 A typ., 90 A max. (3.0 V output product)
During power-off: 0.1 A typ., 1.0 A max.
Possible to output 500 mA (3.0 V output product, VIN VOUT(S) 1.0 V)*1
A ceramic capacitor of 4.7 F or more can be used.
70 dB typ. (1.0 V output product, f = 1.0 kHz)
Limits overcurrent of output transistor.
Output current:
Input and output capacitors:
Ripple rejection:
Built-in overcurrent protection circuit:
Built-in thermal shutdown circuit:
Built-in inrush current limit circuit:
Built-in ON/OFF circuit:
Prevents damage caused by heat.
Limits excessive inrush current at power-on.
Ensures long battery life.
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 battery-powered device
Constant-voltage power supply for TV, notebook PC and home electric appliance
Constant-voltage power supply for portable equipment
Package
SOT-89-5
1
HIGH RIPPLE-REJECTION LOW DROPOUT HIGH OUTPUT CURRENT CMOS VOLTAGE REGULATOR
S-1155 Series
Rev.2.1_03
■ Block Diagram
*1
VIN
VOUT
Overcurrent
protection circuit
Thermal shutdown circuit
ON/OFF circuit
ON/OFF
Reference
voltage circuit
VSS
*1. Parasitic diode
Figure 1
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HIGH RIPPLE-REJECTION LOW DROPOUT HIGH OUTPUT CURRENT CMOS VOLTAGE REGULATOR
Rev.2.1_03
S-1155 Series
Product Name Structure
Users can select the product type, output voltage, and package type for the S-1155 Series. Refer to “1. Product
name” regarding the contents of product name, “2. Package” regarding the package drawings and “3. Product
name list” regarding details of product name.
1. Product name
S-1155
x
xx
-
U5T1
x
Environmental code
U: Lead-free (Sn 100%), halogen-free
G: Lead-free (for details, please contact our sales office)
Package abbreviation and packing specifications*1
U5T1: SOT-89-5, Tape
Output voltage*2
10 to 50
(e.g., when the output voltage is 1.0 V, it is expressed as 10.)
Product type*3
A: ON/OFF pin negative logic
B: ON/OFF pin positive logic
*1. Refer to the tape drawing.
*2. If you request the product which has 0.05 step, contact our sales office.
*3. Refer to “3. ON/OFF pin” in “ Operation”.
2. Package
Drawing Code
Tape
Package Name
SOT-89-5
Package
Reel
UP005-A-P-SD
UP005-A-C-SD
UP005-A-R-SD
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HIGH RIPPLE-REJECTION LOW DROPOUT HIGH OUTPUT CURRENT CMOS VOLTAGE REGULATOR
S-1155 Series
Rev.2.1_03
3. Product name list
Table 1
Output Voltage
1.0 V 15 mV
SOT-89-5
S-1155B10-U5T1x
S-1155B11-U5T1x
S-1155B12-U5T1x
S-1155B13-U5T1x
S-1155B14-U5T1x
S-1155B15-U5T1x
S-1155B16-U5T1x
S-1155B17-U5T1x
S-1155B18-U5T1x
S-1155B1J-U5T1x
S-1155B19-U5T1x
S-1155B20-U5T1x
S-1155B21-U5T1x
S-1155B22-U5T1x
S-1155B23-U5T1x
S-1155B24-U5T1x
S-1155B25-U5T1x
S-1155B26-U5T1x
S-1155B27-U5T1x
S-1155B28-U5T1x
S-1155B2J-U5T1x
S-1155B29-U5T1x
S-1155B30-U5T1x
S-1155B31-U5T1x
S-1155B32-U5T1x
S-1155B33-U5T1x
S-1155B34-U5T1x
S-1155B35-U5T1x
S-1155B36-U5T1x
S-1155B37-U5T1x
S-1155B38-U5T1x
S-1155B39-U5T1x
S-1155B40-U5T1x
S-1155B41-U5T1x
S-1155B42-U5T1x
S-1155B43-U5T1x
S-1155B44-U5T1x
S-1155B45-U5T1x
S-1155B46-U5T1x
S-1155B47-U5T1x
S-1155B48-U5T1x
S-1155B49-U5T1x
S-1155B50-U5T1x
1.1 V 15 mV
1.2 V 15 mV
1.3 V 15 mV
1.4 V 15 mV
1.5 V 1.0%
1.6 V 1.0%
1.7 V 1.0%
1.8 V 1.0%
1.85 V 1.0%
1.9 V 1.0%
2.0 V 1.0%
2.1 V 1.0%
2.2 V 1.0%
2.3 V 1.0%
2.4 V 1.0%
2.5 V 1.0%
2.6 V 1.0%
2.7 V 1.0%
2.8 V 1.0%
2.85 V 1.0%
2.9 V 1.0%
3.0 V 1.0%
3.1 V 1.0%
3.2 V 1.0%
3.3 V 1.0%
3.4 V 1.0%
3.5 V 1.0%
3.6 V 1.0%
3.7 V 1.0%
3.8 V 1.0%
3.9 V 1.0%
4.0 V 1.0%
4.1 V 1.0%
4.2 V 1.0%
4.3 V 1.0%
4.4 V 1.0%
4.5 V 1.0%
4.6 V 1.0%
4.7 V 1.0%
4.8 V 1.0%
4.9 V 1.0%
5.0 V 1.0%
Remark 1. Please contact our sales office for products with an
output voltage other than those specified above or
type A products.
2. x: G or U
3. Please select products of environmental code = U for
Sn 100%, halogen-free products.
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HIGH RIPPLE-REJECTION LOW DROPOUT HIGH OUTPUT CURRENT CMOS VOLTAGE REGULATOR
Rev.2.1_03
S-1155 Series
Pin Configuration
Table 2
SOT-89-5
Top view
Pin No.
Symbol
Description
ON/OFF pin
5
4
1
2
3
4
5
ON/OFF
VSS
NC*1
GND pin
No connection
Input voltage pin
Output voltage pin
VIN
VOUT
*1. The NC pin is electrically open.
The NC pin can be connected to VIN pin or VSS pin.
1
2
3
Figure 2
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HIGH RIPPLE-REJECTION LOW DROPOUT HIGH OUTPUT CURRENT CMOS VOLTAGE REGULATOR
S-1155 Series
Rev.2.1_03
Absolute Maximum Ratings
Table 3
(Ta 25C unless otherwise specified)
Item
Symbol
VIN
Absolute Maximum Rating
Unit
V
VSS 0.3 to VSS + 6
VSS 0.3 to VIN + 0.3
VSS 0.3 to VIN + 0.3
1000*1
Input voltage
VON/OFF
VOUT
PD
V
Output voltage
V
Power dissipation
mW
°C
°C
Operation ambient temperature Topr
40 to +85
40 to +125
Storage temperature
Tstg
*1. When mounted on board
[Mounted board]
(1) Board size :
114.3 mm 76.2 mm t1.6 mm
JEDEC STANDARD51-7
(2) Name :
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.
1200
1000
800
600
400
200
0
100
150
50
0
Ambient temperature (Ta) [C]
Figure 3 Power Dissipation of Package (When Mounted on Board)
Table 4
Condition
SOT-89-5 (When mounted on board)
Power Dissipation
1000 mW
Thermal Resistance Value (ja)
100°C/W
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HIGH RIPPLE-REJECTION LOW DROPOUT HIGH OUTPUT CURRENT CMOS VOLTAGE REGULATOR
Rev.2.1_03
S-1155 Series
Electrical Characteristics
Table 5 (1 / 2)
(Ta 25C unless otherwise specified)
Test
Circuit
Item
Symbol
VOUT(E)
IOUT
Condition
Min.
Typ.
Max.
Unit
VOUT(S)
0.015
VOUT(S)
VOUT(S) VOUT(S)
+ 0.015
VOUT(S) VOUT(S)
1.0 V
1.5 V
VOUT(S) < 1.5 V
V
1
V
IN = VOUT(S) + 1.0 V,
IOUT = 100 mA
Output voltage*1
Output current*2
VOUT(S)
4.5 V
5.0 V
V
1
0.99
1.01
VIN = 5.5 V,
IOUT = 100 mA
VIN
VOUT(S)
VOUT(S) VOUT(S)
4.5 V < VOUT(S)
VOUT(S)
4.5 V < VOUT(S)
V
1
3
0.99
1.01
VOUT(S) + 1.0 V 1.0 V
4.5 V
5.0 V
500*5
mA
VIN = 5.5 V
500*5
mA
V
V
V
V
V
V
V
3
1
1
1
1
1
1
1
1.0 V
1.1 V
1.2 V
1.3 V
1.4 V
1.5 V
2.6 V
VOUT(S) < 1.1 V
VOUT(S) < 1.2 V
VOUT(S) < 1.3 V
VOUT(S) < 1.4 V
VOUT(S) < 1.5 V
VOUT(S) < 2.6 V
0.5
0.54
0.44
0.34
0.24
0.14
0.10
0.07
0.58
0.48
0.38
0.28
0.18
0.15
0.10
Dropout voltage*3
Vdrop
IOUT = 200 mA
VOUT(S)
5.0 V
V
OUT(S) + 0.5 V
5.5 V,
VIN
1.0 V
3.6 V
VOUT(S) < 3.6 V
0.05
2.5
0.2
10
%/V
mV
1
1
VOUT1
VIN VOUT
VOUT(S)
4.8 V
5.0 V
IOUT = 100 mA
Line regulation
Load regulation
5.3 V VIN 5.5 V,
IOUT = 100 mA
VIN = VOUT(S) + 1.0 V,
1 mA
VIN = 5.5 V,
1 mA IOUT
4.8 V < VOUT(S)
1.0 V VOUT(S)
4.5 V < VOUT(S)
2.5
15
15
10
30
30
mV
mV
mV
1
1
1
4.5 V
5.0 V
IOUT
200 mA
VOUT2
200 mA
V
IN = VOUT(S) + 1.0 V,
IOUT = 100 mA,
40°C Ta 85°C
VIN = 5.5 V,
IOUT = 100 mA,
40°C Ta 85°C
VIN VOUT(S) 1.0 V, ON/OFF pin
no load, 1.0 V VOUT(S) < 1.8 V
VIN VOUT(S) 1.0 V, ON/OFF pin
no load, 1.8 V VOUT(S) 4.5 V
VIN 5.5 V, ON/OFF pin
no load, 4.5 V < VOUT(S)
1.0 V
VOUT(S)
4.5 V
5.0 V
130
130
ppm/
ppm/
C
C
1
1
Output voltage
temperature
coefficient*4
VOUT
Ta VOUT
4.5 V < VOUT(S)
ON,
ON,
90
70
70
110
90
A
2
2
2
Current consumption
during operation
ISS1
A
A
ON,
90
5.0 V
VIN
VOUT(S)
1.0 V,
OFF,
ON/OFF pin
no load
1.0 V
VOUT(S)
4.5 V
5.0 V
0.1
1.0
A
A
2
Current consumption
during power-off
ISS2
VIN
5.5 V,
ON/OFF pin
no load
OFF,
4.5 V < VOUT(S)
0.1
1.0
5.5
2
Input voltage
VIN
1.5
V
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HIGH RIPPLE-REJECTION LOW DROPOUT HIGH OUTPUT CURRENT CMOS VOLTAGE REGULATOR
S-1155 Series
Rev.2.1_03
Table 5 (2 / 2)
(Ta 25C unless otherwise specified)
Test
Circuit
Item
Symbol
Condition
Min.
Typ.
Max.
Unit
V
IN = VOUT(S) + 1.0 V,
RL = 1.0 k,
determined by VOUT
output level
VIN = 5.5 V,
RL = 1.0 k,
1.0 V
VOUT(S)
4.5 V
5.0 V
4.5 V
5.0 V
1.0
V
4
ON/OFF pin input
voltage “H”
VSH
4.5 V < VOUT(S)
1.0
V
V
V
4
4
4
determined by VOUT
output level
V
IN = VOUT(S) + 1.0 V,
RL = 1.0 k
,
1.0 V
VOUT(S)
0.3
0.3
determined by VOUT
output level
VIN = 5.5 V,
RL = 1.0 k,
determined by VOUT
output level
ON/OFF pin input
voltage “L”
VSL
4.5 V < VOUT(S)
ON/OFF pin input
current “H”
ON/OFF pin input
current “L”
ISH
ISL
VIN = 5.5 V, VON/OFF = 5.5 V
VIN = 5.5 V, VON/OFF = 0 V
0.1
0.1
0.1
0.1
A
A
4
4
1.0 V
1.2 V
VOUT(S) < 1.2 V
70
65
60
dB
dB
dB
5
5
5
VIN = VOUT(S) + 1.0 V,
f = 1 kHz,
VOUT(S)
3.0 V
4.5 V
Vrip = 0.5 Vrms,
IOUT = 100 mA
3.0 V < VOUT(S)
RR
Ripple rejection
VIN = 5.5 V,
f = 1 kHz,
4.5 V < VOUT(S)
5.0 V
60
dB
5
Vrip = 0.5 Vrms,
IOUT = 100 mA
VIN VOUT(S)
ON/OFF pin
VOUT 0 V
VIN 5.5 V,
ON/OFF pin
VOUT 0 V
1.0 V,
ON,
1.0 V
VOUT(S)
4.5 V
5.0 V
200
200
mA
mA
3
3
Short-circuit current
ISHORT
ON,
4.5 V < VOUT(S)
Thermal shutdown
detection temperature
TSD
TSR
Junction temperature
Junction temperature
150
120
C
C
Thermal shutdown
release temperature
*1. VOUT(S) : Set output voltage
VOUT(E) : Actual output voltage
Output voltage when fixing IOUT ( 100 mA) and inputting VOUT(S) 1.0 V or 5.5 V
*2. The output current at which the output voltage becomes 95% of VOUT(E) after gradually increasing the output current.
*3. Vdrop VIN1 (VOUT3 0.98)
VOUT3 is the output voltage when VIN VOUT(S) 1.0 V or 5.5 V, and IOUT 200 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
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
*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.
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HIGH RIPPLE-REJECTION LOW DROPOUT HIGH OUTPUT CURRENT CMOS VOLTAGE REGULATOR
Rev.2.1_03
S-1155 Series
Test Circuits
1.
+
VOUT
VSS
VIN
A
+
ON/OFF
V
Set to ON
Figure 4
+
2.
A
VOUT
VSS
VIN
ON/OFF
Set to VIN or GND
Figure 5
3.
VOUT
VSS
A
VIN
ON/OFF
V
Set to ON
Figure 6
4.
VOUT
VSS
VIN
ON/OFF
A
V
RL
Figure 7
5.
VOUT
VSS
VIN
ON/OFF
V
RL
Set to ON
Figure 8
9
HIGH RIPPLE-REJECTION LOW DROPOUT HIGH OUTPUT CURRENT CMOS VOLTAGE REGULATOR
S-1155 Series
Rev.2.1_03
Standard Circuit
Input
Output
VIN
VOUT
*1
*2
CIN
ON/OFF
CL
VSS
Single GND
GND
*1. CIN is a capacitor for stabilizing the input.
*2. A ceramic capacitor of 4.7 F or more can be used as CL.
Figure 9
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) :
4.7 F or more
Output capacitor (CL) : 4.7 F or more
Caution 1. Set input capacitor (CIN) and output capacitor (CL) as CIN = CL.
2. 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.
Selection of Input and Output Capacitors (CIN, CL)
The S-1155 Series requires an output capacitor between the VOUT pin and the VSS pin for phase compensation.
Operation is stabilized by a ceramic capacitor with an output capacitance of 4.7 F or more over the entire
temperature range. When using an OS capacitor, a tantalum capacitor, or an aluminum electrolytic capacitor, the
capacitance must be 4.7 F or more.
The values of output overshoot and undershoot, which are transient response characteristics, vary depending on the
value of output capacitor.
The required value of capacitance for the input capacitor differs depending on the application.
Set the value for input capacitor (CIN) and output capacitor (CL) as follows.
CIN 4.7 F
CL 4.7 F
CIN = CL
Caution The S-1155 Series may oscillate if setting the value as CIN 4.7 F, CL 4.7 F, CIN CL.
Define the values by sufficient evaluation including the temperature characteristics under the usage
condition.
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HIGH RIPPLE-REJECTION LOW DROPOUT HIGH OUTPUT CURRENT CMOS VOLTAGE REGULATOR
Rev.2.1_03
S-1155 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% or 15 mV*2 under the specified conditions of fixed input
voltage*1, fixed output current, and fixed temperature.
*1. Differs depending on the product.
*2. When VOUT < 1.5 V : 15 mV, when 1.5 V VOUT : 1.0%
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 against the input voltage. That is, the value shows how much the
output voltage changes due to a change in the input voltage after fixing output current constant.
4. Load regulation (VOUT2
)
Indicates the dependency of the output voltage against the output current. That is, the value shows how much the
output voltage changes due to a change in the output current after fixing output current constant.
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 or 5.5 V.
V
drop = VIN1 (VOUT3 0.98)
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HIGH RIPPLE-REJECTION LOW DROPOUT HIGH OUTPUT CURRENT CMOS VOLTAGE REGULATOR
S-1155 Series
Rev.2.1_03
VOUT
6. Output voltage temperature coefficient
TaV
OUT
The shaded area in Figure 10 is the range where VOUT varies in the operation temperature range when the output
voltage temperature coefficient is 130 ppm/C.
Example of S-1155B30 typ. product
VOUT [V]
0.39 mV/C
*1
VOUT(E)
0.39 mV/C
40
25
85
Ta [C]
*1. VOUT(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
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HIGH RIPPLE-REJECTION LOW DROPOUT HIGH OUTPUT CURRENT CMOS VOLTAGE REGULATOR
Rev.2.1_03
S-1155 Series
Operation
1. Basic operation
Figure 11 shows the block diagram of the S-1155 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
amplifier
VOUT
Vref
Rf
Vfb
Reference voltage
circuit
Rs
VSS
*1. Parasitic diode
Figure 11
2. Output transistor
In the S-1155 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.
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HIGH RIPPLE-REJECTION LOW DROPOUT HIGH OUTPUT CURRENT CMOS VOLTAGE REGULATOR
S-1155 Series
Rev.2.1_03
3. ON/OFF pin
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 is set to the VSS level by the internal dividing resistor of several hundred k between
the VOUT pin and the VSS pin.
Note that the current consumption increases when a voltage of 0.3 V to 1.0 V is applied to the ON/OFF pin.
The ON/OFF pin is configured 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 status. 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 6
Product Type ON/OFF Pin Internal Circuit VOUT Pin Voltage Current Consumption
A
A
B
B
“L”: ON
“H”: OFF
“L”: OFF
“H”: ON
Operate
Stop
Set value
ISS1
ISS2
ISS2
ISS1
V
V
SS level
SS level
Stop
Operate
Set value
VIN
ON/OFF
VSS
Figure 12
4. Overcurrent protection circuit
The S-1155 Series includes an overcurrent protection circuit having the characteristics shown in “1. Output
Voltage vs. Output Current (When load current increases) (Ta = 25C)” in “ Characteristics (Typical Data)”, in
order to protect the output transistor against an excessive output current and short circuiting between the VOUT pin
and the VSS pin. The current when the output pin is short-circuited (ISHORT) is internally set at approx. 200 mA typ.,
and the normal value is restored for the output voltage, if releasing a short circuit once.
Caution This overcurrent protection circuit does not work as for thermal protection. If this IC long keeps
short circuiting inside, pay attention to the conditions of input voltage and the load current so
that, under the usage conditions including short circuit, the loss of the IC will not exceed power
dissipation of the package.
14
HIGH RIPPLE-REJECTION LOW DROPOUT HIGH OUTPUT CURRENT CMOS VOLTAGE REGULATOR
Rev.2.1_03
S-1155 Series
5. Thermal shutdown circuit
The S-1155 Series has a thermal shutdown circuit to protect the device from damage due to overheat. When the
junction temperature rises to 150C typ., the thermal shutdown circuit operates to stop regulating. When the
junction temperature drops to 120C typ., the thermal shutdown circuit is released to restart regulating.
Due to self-heating of the S-1155 Series, if the thermal shutdown circuit starts operating, it stops regulating so that
the output voltage drops. When regulation stops, the S-1155 Series does not itself generate heat so that the IC’s
temperature drops. When the temperature drops, the thermal shutdown circuit is released to restart regulating, thus
the S-1155 Series generates heat again. Repeating this procedure makes waveform of the output voltage pulse-like
form. Stop or restart of regulation continues unless decreasing either or both of the input voltage and the output
current in order to reduce the internal power consumption, or decreasing the ambient temperature.
Table 7
Thermal Shutdown Circuit
Operation: 150C typ.*1
Release: 120C typ.*1
VOUT Pin Voltage
VSS level
Set value
*1. Junction temperature
6. Inrush current limit circuit
The S-1155 Series has a built-in inrush current limit circuit to limit the inrush current generated at power-on or at
the time when the ON/OFF pin is set to ON. This circuit limits the inrush current (400 mA, typ.) immediately after
power-on or from the time when the ON/OFF pin is set to ON until the specified time (100 s min.) which is set
internally.
Caution The junction temperature drops to 120C typ. by the operation of thermal shutdown circuit, after
stopping regulation, the circuit is released to restart regulation; in this case, note that the period
to limit inrush current may become shorter (10 s min.).
15
HIGH RIPPLE-REJECTION LOW DROPOUT HIGH OUTPUT CURRENT CMOS VOLTAGE REGULATOR
S-1155 Series
Rev.2.1_03
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).
Note that generally the output voltage may increase due to the leakage current from an output driver when a series
regulator is used at high temperature.
Note that the output voltage may increase due to the leakage current from an output driver even if the ON/OFF pin is
at OFF level when a series regulator is used at high temperature.
Generally a series regulator may cause oscillation, depending on the selection of external parts. The following
conditions are recommended for the S-1155 Series. However, be sure to perform sufficient evaluation under the
actual usage conditions for selection, including evaluation of temperature characteristics. Refer to “5. Example of
Equivalent Series Resistance vs. Output Current Characteristics (Ta = 25°C)” in “ Reference Data” for the
equivalent series resistance (RESR) of the output capacitor.
Input capacitor (CIN):
Output capacitor (CL):
4.7 F or more
4.7 F or more
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. Note that the voltage regulator may oscillate when the value of the
output capacitor is greater than that of the input capacitor.
Ringing may occur when these three conditions below are satisfied. Before selecting an input capacitor, be sure to
evaluate sufficiently under the actual usage conditions, including the temperature characteristics.
The power supply inductance is high.
The load current is 100 mA or more.
The difference between the input voltage and the output voltage is close to the value of dropout voltage.
If the output capacitance is small, power supply’s fluctuation and the characteristics of load fluctuation become worse.
Sufficiently evaluate the output voltage’s fluctuation with the actual device.
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 5 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.
16
HIGH RIPPLE-REJECTION LOW DROPOUT HIGH OUTPUT CURRENT CMOS VOLTAGE REGULATOR
Rev.2.1_03
S-1155 Series
Characteristics (Typical Data)
1. Output Voltage vs. Output Current (When load current increases) (Ta = 25C)
S-1155B10
1.2
S-1155B30
3.5
3.0
2.5
2.0
1.5
1.0
0.5
1.0
0.8
0.6
0.4
0.2
5.0 V
5.5 V
5.5 V
3.0 V
2.0 V
VIN = 3.5 V
4.0 V
V
IN = 1.5 V
0
0
800
800
0
200
400
600
1000
0
200
400
600
1000
I
OUT [mA]
IOUT [mA]
S-1155B50
6
5
4
3
2
1
0
Remark In determining the output current, attention
V
IN = 5.3 V
should be paid to the following.
5.5 V
1. The minimum output current value and
footnote *5 of Table 5 in “ Electrical
Characteristics”
2. Power dissipation of the package
800
1000
0
200
400
600
IOUT [mA]
2. Output Voltage vs. Input Voltage (Ta = 25°C)
S-1155B10
S-1155B30
3.1
1.1
I
OUT = 1 mA
1.0
0.9
3.0
2.9
2.8
2.7
2.6
50 mA
100 mA
I
OUT = 1 mA
50 mA
0.8
0.7
0.6
0.5
100 mA
2.5
0.5
1.0
1.5
2.0
2.5
3.0
2.5
3.0
3.5
4.0
4.5
5.0
VIN [V]
VIN [V]
S-1155B50
5.1
IOUT = 1 mA
5.0
4.9
4.8
4.7
4.6
50 mA
100 mA
4.5
4.5
4.7
4.9
5.1
5.3
5.5
VIN [V]
17
HIGH RIPPLE-REJECTION LOW DROPOUT HIGH OUTPUT CURRENT CMOS VOLTAGE REGULATOR
S-1155 Series
Rev.2.1_03
3. Dropout Voltage vs. Output Current
S-1155B10
S-1155B30
S-1155B50
4. Dropout Voltage vs. Set Output Voltage
0.40
0.35
I
OUT = 500 mA
300 mA
0.30
0.25
0.20
0.15
0.10
0.05
0
10 mA
0
1
2
3
4
5
6
V
OUT(S) [V]
18
HIGH RIPPLE-REJECTION LOW DROPOUT HIGH OUTPUT CURRENT CMOS VOLTAGE REGULATOR
Rev.2.1_03
S-1155 Series
5. Output Voltage vs. Ambient Temperature
S-1155B10
1.100
S-1155B30
3.20
3.15
3.10
1.075
1.050
3.05
3.00
1.025
1.000
2.95
2.90
0.975
0.950
2.85
2.80
0.925
0.900
40 25
0
25
50
75 85
40 25
0
25
50
75 85
Ta [C]
Ta [C]
S-1155B50
5.30
5.20
5.10
5.00
4.90
4.80
4.70
40 25
0
25
50
75 85
Ta [C]
6. Current Consumption vs. Input Voltage
S-1155B10
S-1155B30
120
Ta = 85 C
100
80
25 C
60
40 C
40
20
0
0 0.5
1.5 2.0 2.5
3.5 4.0 4.5
1.0
3.0
5.0
5.5
VIN [V]
S-1155B50
19
HIGH RIPPLE-REJECTION LOW DROPOUT HIGH OUTPUT CURRENT CMOS VOLTAGE REGULATOR
S-1155 Series
Rev.2.1_03
7. Ripple Rejection (Ta = 25C)
S-1155B10
S-1155B30
100
VIN = 2.0 V, COUT = 4.7 F
VIN = 4.0 V, COUT = 4.7 F
100
I
OUT = 1 mA
I
OUT = 1 mA
80
60
40
20
80
60
40
20
30 mA
30 mA
100 mA
100 mA
0
0
10
100
1K
10K
100K
1M
10
100
1K
10K
100K
1M
Frequency [Hz]
Frequency [Hz]
S-1155B50
V
IN = 5.5 V, COUT = 4.7 F
100
80
60
40
20
I
OUT = 1 mA
30 mA
100 mA
0
10
100
1K
10K
100K
1M
Frequency [Hz]
20
HIGH RIPPLE-REJECTION LOW DROPOUT HIGH OUTPUT CURRENT CMOS VOLTAGE REGULATOR
Rev.2.1_03
S-1155 Series
Reference Data
1. Characteristics of Input Transient Response (Ta = 25°C)
S-1155B10
S-1155B30
IOUT = 100 mA, tr = tf = 5.0 s, COUT = 4.7 F, CIN = 4.7 F
IOUT = 100 mA, tr = tf = 5.0 s, COUT = 4.7 F, CIN = 4.7 F
6
5
4
3
2
1
0
1.15
1.10
1.05
1.00
0.95
3.20
3.15
3.10
3.05
3.00
2.95
2.90
4
3
2
V
IN
V
IN
V
OUT
V
OUT
1
0
200
0
200 400 600 800 1000 1200
t [μs]
200
0
200 400 600 800 1000 1200
t [μs]
S-1155B50
OUT = 100 mA, tr = tf = 5.0 s, COUT = 4.7 F, CIN = 4.7 F
I
5.25
5.20
5.15
5.10
5.05
5.00
4.95
7
6
5
4
3
2
1
V
IN
V
OUT
4.90
0
200
0
200 400 600 800 1000 1200
t [μs]
2. Characteristics of Load Transient Response (Ta = 25C)
S-1155B10
VIN = 2.0 V, COUT = 4.7
1.20
S-1155B30
VIN = 4.0 V, COUT = 4.7
F, CIN = 4.7
F, IOUT = 50 mA
150
100 mA
F, CIN = 4.7
F, IOUT = 50 mA
150
100 mA
3.20
100
3.15
100
50
1.15
I
OUT
I
OUT
1.10
1.05
1.00
0.95
0.90
3.10
3.05
3.00
2.95
2.90
50
0
0
V
OUT
V
OUT
50
100
150
50
100
150
200
0
200 400 600 800 1000 1200
200
0
200 400 600 800
1000 1200
t [μs]
t [μs]
S-1155B50
VIN = 5.5 V, COUT = 4.7
F, CIN = 4.7
F, IOUT = 50 mA
100 mA
5.20
150
5.15
100
50
I
OUT
5.10
5.05
5.00
4.95
4.90
0
V
OUT
50
100
150
200
0
200 400 600 800 1000 1200
t [μs]
21
HIGH RIPPLE-REJECTION LOW DROPOUT HIGH OUTPUT CURRENT CMOS VOLTAGE REGULATOR
S-1155 Series
Rev.2.1_03
3. Transient Response Characteristics of ON/OFF Pin (Ta = 25°C)
S-1155B10
S-1155B30
IN = 4.0 V, COUT = 4.7 F, CIN = 4.7 F, IOUT = 100 mA
VIN = 2.0 V, COUT = 4.7 F, CIN = 4.7 F, IOUT = 100 mA
V
V
ON / OFF = 0 V 2.0 V, tr = 1.0 s
V
ON / OFF = 0 V 4.0 V, tr = 1.0 s
3
6
5
4
10
8
2
1
4
2
3
2
6
V
ON/OFF
V
ON/OFF
4
0
0
1
2
1
2
3
2
4
6
VOUT
V
OUT
0
0
1
500
2
500
2000
2000
0
500
1000 1500
0
500
1000 1500
t [μs]
t [μs]
S-1155B50
IN = 5.5 V, COUT = 4.7 F, CIN = 4.7 F, IOUT = 100 mA
V
V
ON / OFF = 0 V 5.5 V, tr = 1.0 s
9
20
16
12
8
6
3
V
ON/OFF
0
4
3
6
9
V
OUT
0
4
500
2000
0
500
1000 1500
t [μs]
4. Characteristics of Inrush Current (Ta = 25C)
S-1155B10
VIN = 2.0 V, COUT = 4.7 F, CIN = 4.7 F, IOUT = 100 mA
VIN = 2.0 V, COUT = 4.7 F, CIN = 4.7 F, IOUT = 500 mA
6
1.2
1.0
0.8
0.6
0.4
0.2
0
6
1.2
1.0
0.8
0.6
0.4
0.2
0
4
4
V
ON/OFF
V
ON/OFF
2
2
0
0
V
OUT
V
OUT
2
4
6
2
4
6
I
OUT
IOUT
200
400 500
50
0
50
100
t [μs]
150
100
0
100 200 300
t [μs]
S-1155B30
V
IN = 4.0 V, COUT = 4.7 F, CIN = 4.7 F, IOUT = 100 mA
VIN = 4.0 V, COUT = 4.7 F, CIN = 4.7 F, IOUT = 500 mA
6
1.2
1.0
0.8
0.6
0.4
0.2
0
6
1.2
1.0
0.8
0.6
0.4
0.2
0
V
ON/OFF
V
ON/OFF
4
4
2
2
0
V
OUT
0
V
OUT
2
4
6
2
4
6
I
OUT
IOUT
200
400 500
50
0
50
100
t [μs]
150
100
0
100 200 300
t [μs]
22
HIGH RIPPLE-REJECTION LOW DROPOUT HIGH OUTPUT CURRENT CMOS VOLTAGE REGULATOR
Rev.2.1_03
S-1155 Series
S-1155B50
V
IN = 5.5 V, COUT = 4.7 F, CIN = 4.7 F, IOUT = 100 mA
VIN = 5.5 V, COUT = 4.7 F, CIN = 4.7 F, IOUT = 500 mA
6
1.2
1.0
0.8
0.6
0.4
0.2
0
6
1.2
1.0
0.8
0.6
0.4
0.2
0
V
ON/OFF
4
4
V
ON/OFF
2
2
VOUT
V
OUT
0
0
2
4
6
2
4
6
I
OUT
I
OUT
400 500
400 500
100
0
100 200 300
100
0
100 200 300
t [μs]
t [μs]
5. Example of Equivalent Series Resistance vs. Output Current Characteristics (Ta = 25°C)
CIN = CL = 4.7 F
100
VIN
VOUT
CL
RESR
CIN
Stable
S-1155 Series
VSS
*1
ON/OFF
0
0.1
500
I
OUT [mA]
*1. CL: TAIYO YUDEN Co., Ltd. LMK316BJ475ML (4.7 F)
23
HIGH RIPPLE-REJECTION LOW DROPOUT HIGH OUTPUT CURRENT CMOS VOLTAGE REGULATOR
S-1155 Series
Rev.2.1_03
Marking Specification
1. SOT-89-5
Top view
(1) to (3) :
(4) to (6) :
Product abbreviation (refer to Product Name vs. Product Code)
Lot number
5
4
1
2
3
Product Name vs. Product Code
Product Code
Product Code
Product Name
Product Name
(1)
(2)
K
K
K
K
K
K
K
K
K
K
K
K
K
K
K
K
K
K
K
K
K
K
(3)
A
B
C
D
E
F
(1)
S
S
S
S
S
S
S
S
S
S
S
S
S
S
S
S
S
S
S
S
S
(2)
K
K
K
K
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
(3)
W
X
Y
Z
A
B
C
D
E
F
G
H
I
J
K
L
S-1155B10-U5T1x
S-1155B11-U5T1x
S-1155B12-U5T1x
S-1155B13-U5T1x
S-1155B14-U5T1x
S-1155B15-U5T1x
S-1155B16-U5T1x
S-1155B17-U5T1x
S-1155B18-U5T1x
S-1155B1J-U5T1x
S-1155B19-U5T1x
S-1155B20-U5T1x
S-1155B21-U5T1x
S-1155B22-U5T1x
S-1155B23-U5T1x
S-1155B24-U5T1x
S-1155B25-U5T1x
S-1155B26-U5T1x
S-1155B27-U5T1x
S-1155B28-U5T1x
S-1155B2J-U5T1x
S-1155B29-U5T1x
S-1155B30-U5T1x
S-1155B31-U5T1x
S-1155B32-U5T1x
S-1155B33-U5T1x
S-1155B34-U5T1x
S-1155B35-U5T1x
S-1155B36-U5T1x
S-1155B37-U5T1x
S-1155B38-U5T1x
S-1155B39-U5T1x
S-1155B40-U5T1x
S-1155B41-U5T1x
S-1155B42-U5T1x
S-1155B43-U5T1x
S-1155B44-U5T1x
S-1155B45-U5T1x
S-1155B46-U5T1x
S-1155B47-U5T1x
S-1155B48-U5T1x
S-1155B49-U5T1x
S-1155B50-U5T1x
S
S
S
S
S
S
S
S
S
S
S
S
S
S
S
S
S
S
S
S
S
S
G
H
I
J
K
L
M
N
O
P
Q
R
S
T
M
N
O
P
Q
U
V
Remark 1. x: G or U
2. Please select products of environmental code = U for Sn 100%, halogen-free products.
24
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.
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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SMBus Multi-Output Power-Supply ControllerWarning: Undefined variable $rtag in /www/wwwroot/website_ic37/www.icpdf.com/pdf/pdf/index.php on line 217
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SI9136_11
Multi-Output Power-Supply ControllerWarning: Undefined variable $rtag in /www/wwwroot/website_ic37/www.icpdf.com/pdf/pdf/index.php on line 217
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VISHAY
SI9130CG-T1-E3
Pin-Programmable Dual Controller - Portable PCsWarning: Undefined variable $rtag in /www/wwwroot/website_ic37/www.icpdf.com/pdf/pdf/index.php on line 217
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SI9130LG-T1-E3
Pin-Programmable Dual Controller - Portable PCsWarning: Undefined variable $rtag in /www/wwwroot/website_ic37/www.icpdf.com/pdf/pdf/index.php on line 217
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VISHAY
SI9130_11
Pin-Programmable Dual Controller - Portable PCsWarning: Undefined variable $rtag in /www/wwwroot/website_ic37/www.icpdf.com/pdf/pdf/index.php on line 217
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SI9137
Multi-Output, Sequence Selectable Power-Supply Controller for Mobile ApplicationsWarning: Undefined variable $rtag in /www/wwwroot/website_ic37/www.icpdf.com/pdf/pdf/index.php on line 217
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VISHAY
SI9137DB
Multi-Output, Sequence Selectable Power-Supply Controller for Mobile ApplicationsWarning: Undefined variable $rtag in /www/wwwroot/website_ic37/www.icpdf.com/pdf/pdf/index.php on line 217
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VISHAY
SI9137LG
Multi-Output, Sequence Selectable Power-Supply Controller for Mobile ApplicationsWarning: Undefined variable $rtag in /www/wwwroot/website_ic37/www.icpdf.com/pdf/pdf/index.php on line 217
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VISHAY
SI9122E
500-kHz Half-Bridge DC/DC Controller with Integrated Secondary Synchronous Rectification DriversWarning: Undefined variable $rtag in /www/wwwroot/website_ic37/www.icpdf.com/pdf/pdf/index.php on line 217
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VISHAY
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