R1118x SERIES
AUTOMATIC MODE SHIFT / 150mA LOW VOLTAGE REGULATOR
NO.EA-175-111026
OUTLINE
R1118x Series are CMOS-based voltage regulator ICs with ultra low supply current (Typ.5.5μA), and
remarkable improved transient response compared with the conventional low supply current voltage regulator.
The supply current of these ICs is automatically shifts between fast mode and low power mode, it depending on
the load current. The current threshould is fixed internally. R1118x shifts from low power mode to fast response
mode at I
OUT
=7mA (Typ.) and shifts fast response mode to low power mode at I
OUT
=2mA (Typ.).
These ICs are capable of the low input voltage (Min.1.4V) and the output voltage range from 0.8V is possible.
The output voltage of R1118x is fixed in the IC.
Each of these ICs consists of a voltage reference unit, an error amplifier, a resister net for setting output
voltage, a current limit circuits for over-current.
A standby mode with ultra low supply current can be realized with the chip enable function.
Since the packages for these ICs are SOT-23-5 and DFN(PLP)1612-4B, therefore high density mounting of the
ICs on boards is possible.
FEATURES
•
•
•
•
•
•
•
•
•
•
•
•
•
Supply Current (Low power Mode) ..............................Typ. 5.5μA (I
OUT
=0mA)
Supply Current (Fast Mode).........................................Typ. 50μA (I
OUT
=11mA)
Supply Current (Standby Mode)...................................Typ. 0.1
μA
Ripple Rejection ...........................................................Typ. 70dB (f=1kHz)
Typ. 60dB (f=10kHz)
Input Voltage Range.....................................................1.4V to 6.0V
Output Voltage Range ..................................................0.8V to 4.2V (0.1V steps)
(
For other voltages, please refer to MARK INFORMATIONS.)
Output Voltage Accuracy..............................................±1.0% (1.5V < V
OUT
<
3.5V, T
opt
=25°C)
=
Temperature-Drift Coefficient of Output Voltage ..........Typ.
±100ppm/°C
Dropout Voltage............................................................Typ. 0.27V (I
OUT
=150mA,
V
OUT
=2.8V)
Line Regulation ............................................................Typ. 0.02%/V
Packages......................................................................DFN(PLP)1612-4B, SOT-23-5
Built-in Fold Back Protection Circuit.............................Typ. 40mA
Ceramic capacitors are recommended to be used with this IC .... 1.0μF
APPLICATIONS
•
Power source for portable communication equipment.
•
Power source for electrical appliances such as cameras, VCRs and camcorders.
•
Power source for battery-powered equipment.
1
R1118x
BLOCK DIAGRAMS
R1118xxx1B
V
DD
V
OUT
V
DD
R1118xxx1D
V
OUT
Vref
Current Limit
Vref
Current Limit
CE
GND
CE
GND
SELECTION GUIDE
The output voltage, auto discharge function, package, and the taping type, etc. for the ICs can be selected at
the user’s request.
Product Name
R1118Kxx1∗-TR
R1118Nxx1∗-TR-FE
Package
DFN(PLP)1612-4B
SOT-23-5
Quantity per Reel
5,000 pcs
3,000 pcs
Pb Free
Yes
Yes
Halogen Free
Yes
Yes
xx : The output voltage can be designated in the range from 0.8V(08) to 4.2V(42) in 0.1V steps.
(For other voltages, please refer to MARK INFORMATIONS.)
∗
: CE pin polarity and auto discharge function at off state are options as follows.
(B) "H" active, without auto discharge function at off state
(D) "H" active, with auto discharge function at off state
2
R1118x
ABSOLUTE MAXIMUM RATINGS
Symbol
V
IN
V
CE
V
OUT
I
OUT
P
D
T
opt
T
stg
Input Voltage
Input Voltage (CE Pin)
Output Voltage
Output Current (DC)
Power Dissipation (DFN(PLP)1612-4B)*
Power Dissipation (SOT-23-5)*
Operating Temperature Range
Storage Temperature Range
Item
Rating
6.5
−0.3
to 6.5
−0.3
to V
IN
+0.3
180
580
420
−40
to 85
−55
to 125
Unit
V
V
V
mA
mW
°C
°C
∗)
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 ratings is not assured.
RECOMMENDED OPERATING CONDITIONS (ELECTRICAL CHARACTERISTICS)
All of electronic equipment should be designed that the mounted semiconductor devices operate within the
recommended operating conditions. The semiconductor devices cannot operate normally over the
recommended operating conditions, even if when they are used over such conditions by momentary
electronic noise or surge. And the semiconductor devices may receive serious damage when they continue
to operate over the recommended operating conditions.
4
R1118x
ELECTRICAL CHARACTERISTICS
•
R1118xxx1B/D
V
IN
=Set
V
OUT
+1V,
I
OUT
=1mA,
unless otherwise noted.
The specification in
is checked and guaranteed by design engineering at
−40°C
unless otherwise noted.
Symbol
Item
T
opt
=25°C
V
OUT
Output Voltage
−40°C
I
OUT
ΔV
OUT
/
ΔI
OUT
V
DIF
I
SS1
I
SS2
I
standby
I
OUTH
I
OUTL
ΔV
OUT
/
ΔV
IN
RR
V
IN
ΔV
OUT
/
ΔT
opt
I
SC
I
PD
V
CEH
V
CEL
en
R
LOW
Output Current
Load Regulation
Dropout Voltage
Supply Current
(Low Power Mode)
Supply Current
(Fast Mode)
Standby Current
Fast Mode Current
Threshold
Low Power Mode
Current Threshold
Line Regulation
I
OUT
=0mA
I
OUT
=11mA
V
IN
=6.0V,
V
CE
=GND
I
OUT
=1μA→30mA
I
OUT
=30mA→1μA
Set V
OUT
+0.5V
<
V
IN
<
6.0V
=
=
<
0.9V, V
IN
>
1.4V)
(In
case that V
OUT
=
=
Ripple 0.2Vp-p
f=1kHz
I
OUT
=30mA
(In case that V
OUT
<1.5V,
f=10kHz
V
IN
=Set
V
OUT
+1.5V)
1.4
−40°C
<
=
<
=
<
=
T
opt
<
=
85°C,
Topt=25°C
Conditions
V
OUT
<
=
Min.
1.5V
<
=
Typ.
Max.
15
×1.01
×1.015
30
×1.02
×1.025
Unit
mV
V
V
mV
V
V
mA
−15
3.5V
×0.99
×0.985
−40
3.5V
×0.973
×0.968
150
1.5V < V
OUT
3.5V < V
OUT
V
OUT
<
=
1.5V
<
=
T
opt
<
85°C 1.5V < V
OUT
=
3.5V < V
OUT
1mA
<
=
I
OUT
<
=
150mA
Refer to the following table
5.5
50
0.1
7
1
2
±0.02
70
80
mV
16
105
1.0
12
μA
μA
μA
mA
mA
±0.2
%/V
Ripple Rejection
Input Voltage
Output Voltage
Temperature Coefficient
Short Current Limit
CE Pull-down Current
CE Input Voltage "H"
CE Input Voltage "L"
Output Noise
dB
60
6.0
±100
40
0.01
1.0
0.4
0.3
0.6
V
ppm
/°C
mA
μA
V
V
μVrms
Ω
100
40
T
opt
<
=
85°C
V
OUT
=0V
BW=10Hz to 100kHz
Low Output Nch Tr. ON
V
CE
=0V
Resistance (of D version)
All of unit are tested and specified under load conditions such that Tj
≈
T
opt
=25°C except for Output Noise,
Ripple Rejection and Output Voltage Temperature Coefficient items.
5
Analog electronics
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