R1180x SERIES
150mA LDO REGULATOR
NO.EA-105-0606
OUTLINE
The R1180x Series are CMOS-based voltage regulator ICs with high output voltage accuracy, extremely low
supply current, and low ON-resistance. Each of these ICs 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 of these ICs 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.
Since the packages for these ICs are SOT-23-5 (R1180N Series), SC-82AB (R1180Q Series), and SON1612-6
(R1180D Series), therefore high density mounting of the ICs on boards is possible.
FEATURES
•
•
•
•
•
•
•
Low Supply Current ..........................................Typ. 1µA(Except the current through CE pull-down circuit)
Standby Mode ...................................................Typ. 0.1µA
Low Dropout Voltage.........................................Typ. 0.25V (I
OUT
=150mA
3.0V Output type)
Low Temperature-Drift Coefficient of Output Voltage Typ.
±100ppm/°C
Good Line Regulation .......................................Typ. 0.05%/V
High Output Voltage Accuracy ..........................±2.0%
Small Packages ..............................................SOT-23-5 (R1180N), SC-82AB (R1180Q),
SON1612-6 (R1180D)
•
Output Voltage ..................................................1.2V to 3.6V
•
Built-in Fold Back Protection Circuit .................Typ. 40mA (Current at short mode)
•
Ceramic capacitors are recommended to be used with this IC 0.1µF
APPLICATIONS
•
Stable voltage reference.
•
Power source for electrical appliances such as cameras, VCRs and camcorders.
•
Power source for battery-powered equipment.
1
R1180x
BLOCK DIAGRAMS
R1180xxx1B
V
DD
V
OUT
V
DD
R1180xxx1C
V
OUT
Vref
Vref
Current Limit
CE
GND
Current Limit
GND
SELECTION GUIDE
The output voltage, version, and the taping type for the ICs can be selected at the user's request.
The selection can be made with designating the part number as shown below:
R1180xxx1x-TR-x
←Part
Number
↑ ↑
a b
Code
a
↑
c
↑ ↑
d e
Contents
Designation of Package Type :
N: SOT-23-5 (Mini mold)
Q: SC-82AB (Super-mini mold)
D: SON1612-6
Setting Output Voltage (V
OUT
) :
Stepwise setting with a step of 0.1V in the range of 1.2V to 3.6V is possible.
Designation of Active Type :
B: active high type
C: without chip enable circuit
Designation of Taping Type :
Ex. TR (refer to Taping Specifications; TR type is the standard direction.)
Designation of composition of pin plating:
-F: Lead free plating (SOT-23-5,SC-82AB,SON1612-6)
b
c
d
e
2
R1180x
ABSOLUTE MAXIMUM RATINGS
Symbol
V
IN
V
CE
V
OUT
I
OUT
Input Voltage
Input Voltage(CE Pin)
Output Voltage
Output Current
Power Dissipation (SOT23-5) *
1
Power Dissipation (SC82-AB)*
1
Power Dissipation (SON1612-6) *
1
Topt
Tstg
Operating Temperature Range
Storage Temperature Range
Item
Rating
6.5
6.5
−0.3
to V
IN
+0.3
180
420
380
500
−40
to 85
−55
to 125
°C
°C
Unit
V
V
V
mA
∗1
)
For Power Dissipation, please refer to PACKAGE INFORMATION to be described.
4
Analog electronics
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