R1180N SERIES
150mA LDO REGULATOR FOR AUTOMOTIVE APPLICATIONS
NO.EC-105-140212
OUTLINE
The R1180x is a CMOS-based voltage regulator IC with high output voltage accuracy, extremely low supply
current, and low ON-resistance. This IC consists of a voltage reference unit, an error amplifier, resistor-net for
voltage setting, a current limit circuit which prevents the destruction by excess current, and so on.
The output voltage is fixed with high accuracy. B version has a chip enable pin, therefore ultra-low consumption
current standby mode can be realized with the pin.
The R1180x is available in SOT-23-5 package which is possible to mount at high density.
FEATURES
•
Input Voltage (Maximum Rating).............................. 1.7V to 6.0V (6.5V)
•
Supply Current ......................................................... Typ. 1.0μA
(Except the current through CE pull-down circuit)
•
Standby Mode .......................................................... Typ. 0.1μA
•
Dropout Voltage ....................................................... Typ. 0.25V (I
OUT
=150mA
3.0V Output type)
•
Temperature-Drift Coefficient of Output Voltage ...... Typ.
±100ppm/°C
•
Line Regulation ........................................................ Typ. 0.05%/V
•
Output Voltage Accuracy..........................................
±2.0%
•
Packages ................................................................ SOT-23-5
•
Output Voltage Range.............................................. 1.2V to 3.6V (0.1V steps)
•
Built-in Fold Back Protection Circuit ........................ Typ. 40mA (Current at short mode)
•
Recommended Ceramic Capacitor to IC ..................0.1μF or more
APPLICATIONS
•
Power source for car accessories including car audio equipment, car navigation system, and ETC system.
•
Power source for control units including EV inverter and charge control.
1
R1180N
NO.EC-105-140212
BLOCK DIAGRAMS
R1180xxx1B
R1180xxx1C
V
DD
V
OUT
V
DD
V
OUT
Vref
Vref
Current Limit
CE
GND
Current Limit
GND
SELECTION GUIDE
The output voltage, CE pin polarity, package, etc. for the ICs can be selected at the user’s request.
Product Name
R1180Nxx1∗-TR-#E
Package
SOT-23-5
Quantity per Reel
3,000 pcs
Pb Free
Yes
Halogen Free
Yes
xx : The output voltage can be designated in the range from 1.2V(12) to 3.6V(36) in 0.1V steps.
∗
: CE pin polarity is options as follows.
(B) "H" Active
(C) without CE pin
# : Specify the automotive class code.
Operating Temperature
Guaranteed Specs
Range
Temperature Range
A
−4
0°C to 85°C
25°C
H
−4
0°C to 85°C
25°C
Screening
High Temperature
High and Low
Temperature
Note: The product with “H” class code supports the device with CE pin (“H” Active) only.
(R1180Nxx1B-TR-HE)
2
R1180N
NO.EC-105-140212
PIN DESCRIPTIONS
SOT-23-5
5
4
(Mark side)
1
2
3
•
SOT-23-5
Pin No
1
2
3
4
5
Symbol
V
DD
GND
CE or NC
NC
V
OUT
Input Pin
Ground Pin
Chip Enable Pin or No Connection
No Connection
Output pin
Pin Description
3
R1180N
NO.EC-105-140212
ABSOLUTE MAXIMUM RATINGS
Symbol
V
IN
V
CE
V
OUT
I
OUT
P
D
Tj
Tstg
Input Voltage
Input Voltage (CE Pin)
Output Voltage
Output Current
Power Dissipation
(SOT-23-5)*
1
Junction Temperature
Storage Temperature Range
Standard Land
Pattern
Item
Rating
6.5
6.5
−0.3
to V
IN
+0.3
180
525
−40
to 150
−55
to 150
Unit
V
V
V
mA
mW
°C
°C
*
1
For Power Dissipation, please refer to
PACKAGE INFORMATION.
ABSOLUTE MAXIMUM RATINGS
Electronic and mechanical stress momentarily exceeded absolute maximum ratings may cause the
permanent damages and may degrade the life time and safety for both device and system using the
device in the field.
The functional operation at or over these absolute maximum rating is not assured.
RECOMMENDED OPERATING RATINGS
Symbol
V
IN
Ta
Input Voltage
Operating Temperature Range
Item
Rating
1.7 to 6.0
−40
to 85
Unit
V
°C
RECOMMENDED OPERATING RATINGS
All of electronic equipment should be designed that the mounted semiconductor devices operate within the
recommended operating ratings. The semiconductor devices cannot operate normally over the recommended
operating ratings, even if when they are used over such ratings by momentary electronic noise or surge. And the
semiconductor devices may receive serious damage when they continue to operate over the recommended
operating ratings.
4
R1180N
NO.EC-105-140212
ELECTRICAL CHARACTERISTICS
•
R1180xxx1B/C
Symbol
V
OUT
I
OUT
ΔV
OUT
/ΔI
OUT
V
DIF
I
SS
Istandby
ΔV
OUT
/ΔV
IN
V
IN
ΔV
OUT
/
ΔTa
I
SC
I
PD
V
CEH
V
CEL
Item
Output Voltage
Output Current
Load Regulation
Dropout Voltage
Supply Current
Supply Current (Standby)
Line Regulation
Conditions
V
IN
=Set
V
OUT
+1V
1mA
≤
I
OUT
≤
30mA
V
IN
−V
OUT
=1.0V(V
OUT
≥
1.5V)
V
IN
=2.4V(V
OUT
<1.5V)
V
IN
−V
OUT
=1.0V(V
OUT
≥
1.5V)
V
IN
=2.4V(V
OUT
<1.5V)
1μA
≤
I
OUT
≤
150mA
I
OUT
=150mA
V
IN
−V
OUT
=1.0V,I
OUT
=0mA
V
IN
−V
OUT
=1.0V,V
CE
=GND
I
OUT
=30mA
V
OUT
＋0.5V
≤
V
IN
≤
6.0V
(V
OUT
≥
1.5V)
2.0V
≤
V
IN
≤
6.0V
(1.2V
≤
V
OUT
≤
1.4V)
1.7
I
OUT
=30mA
−40°C
≤
Ta
≤
85°C
V
OUT
=0V
(R1180xxx1B)
(R1180xxx1B)
(R1180xxx1B)
1.2
0.0
±100
40
0.35
6.0
0.3
Min.
×0.980
150
20
40
Typ.
Ta=25°C
Max.
×1.020
Unit
V
mA
mV
Refer to the
Product-specific
Electrical Characteristics.
1.0
0.1
0.05
1.5
1.0
0.20
μA
μA
%/V
Input Voltage
Output Voltage
Temperature Coefficient
Short Current Limit
CE Pull-down Constant
Current
CE Input Voltage "H"
CE Input Voltage "L"
6.0
V
ppm
/°C
mA
μA
V
V
5
