R1118 SERIES
AUTOMATIC MODE SHIFT / 150mA LOW VOLTAGE REGULATOR
EA-175-071023
OUTLINE
R1118 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 threshold is fixed internally). 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 R1118 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 (H: 0.4mm), 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. 0.1µA
•
Input Voltage Range ··········································································1.4V ~ 6.0V
•
Output Voltage Range ·······································································0.8V ~ 4.2V
•
Dropout Voltage·················································································TYP. 0.27V (I
OUT
=150mA, V
OUT
=2.8V)
•
Output Voltage Accuracy ···································································±1.0% (1.5V<V
OUT
<
3.5V)
=
•
Ripple Rejection ················································································TYP. 70dB (f=1kHz)
··············································································································TYP. 60dB (f=10kHz)
•
Excellent Line Regulation ··································································TYP. 0.02%/V
•
Packages ···························································································DFN(PLP)1612-4B (H=0.4mm), SOT-23-5
•
Built-in Short Current Limit Circuit ·····················································TYP. 40mA
•
Ceramic capacitors are recommended to be used this IC ················C
IN
=C
OUT
=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.
•
Power source for home appliances
1
R1118
BLOCK DIAGRAM
R1118xxx1B
V
DD
V
OUT
V
DD
R1118xxx1D
V
OUT
-
+
Vref
Vref
Current Limit
-
+
Current Limit
CE
GND
CE
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;
R1118xxxxx-xx
↑ ↑ ↑
a b c
Code
a
Designation of Package Type:
N: SOT-23-5
K: DFN(PLP)1612-4B (H: 0.4mm)
↑
d
←Part
Number
Contents
b
Setting Output Voltage (V
OUT
) :
Fixed Type: 08 to 42 Stepwise setting with 0.1V increment in the range from 0.8V to 4.2V
Exception:1.85V=R1118x181x5-xx
:2.85V=R1118x281x5-xx
Designation of Active Type:
B: active high type
D: active high type, with auto-discharge
Designation of Taping Type:
Ex.TR (refer to Taping Specifications: TR type is the standard direction)
c
d
2
R1118
PIN CONFIGURATION
SOT-23-5
DFN(PLP)1612-4B
Top View
4
3
5
4
Bottom View
3
4
(mark side)
1
2
3
1
2
2
1
PIN DESCRIPTIONS
R1118N : SOT-23-5
Pin No.
1
2
3
4
5
Symbol
V
DD
GND
CE
NC
V
OUT
Input Pin
Ground Pin
Chip Enable Pin (“H” Active)
No Connection
Output Pin
Description
R1118K : DFN(PLP)1612-4B
Pin No.
1
2
3
4
Symbol
V
OUT
GND
CE
V
DD
Output Pin
Ground Pin
Chip Enable Pin (“H” Active)
Input Pin
Description
Tab is GND level.(They are connected to the reverse side of this IC)
Do not connect to other wires or land patterns.
3
R1118
ABSOLUTE MAXIMUM RATINGS
Symbol
V
IN
V
CE
V
OUT
I
OUT
P
D
Ta
Tstg
Input Voltage
Input Voltage (CE pin)
Output Voltage
Output Current
Power Dissipation*
Ambience Temperature Range
Storage Temperature Range
SOT-23-5
DFN(PLP)1612-4B
−
40°C ~ +85°C
−
55°C ~ +125°C
Item
Rating
6.5
−
0.3 ~ 6.5
−
0.3 ~ V
IN
+0.3
180
420
580
Unit
V
V
V
mA
mW
°C
°C
* For Power Dissipation, please refer refer to the PACKAGE INFORMATION.
ELECTRICAL CHARACTERISTICS
V
IN
= Set V
OUT
+ 1V, I
OUT
=1mA, unless otherwise noted.
values indicate -40°C
Symbol
<
=
Ta
<
=
85°C, unless otherwise noted.
(Ta=25°C)
Item
Conditions
V
OUT
<
1.5V
=
MIN.
-15mV
-40mV
V
OUT
x 0.99
V
OUT
x 0.973
V
OUT
x 0.985
V
OUT
x 0.968
150
TYP.
MAX.
15mV
30mV
V
OUT
x 1.01
V
OUT
x 1.02
V
OUT
x 1.015
V
OUT
x 1.025
Unit
V
OUT
Output Voltage
1.5V<V
OUT
<
3.5V
=
V
3.5V<V
OUT
I
OUT
∆V
OUT
/∆I
OUT
V
DIF
I
SS
1
I
SS
2
Istandby
I
OUT
H
I
OUT
L
∆V
OUT
/∆V
IN
Output Current
Load Regulation
Dropout Voltage
Supply Current
(Low Power Mode)
Supply Current (Fast Mode)
Supply Current (Standby)
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
V
OUT
+ 0.5V
<
V
IN
<
6.0V
=
=
<
0.9V
(Incase that V
OUT
=
1.4V
<
V
IN
)
=
f=1kHz
f=10kHz
Ripple 0.2Vp-p, I
OUT
=30mA
(Incase that V
OUT
<1.5V
1mA
<
I
OUT
<
150mA
=
=
mA
80
mV
Refer to the Dropout Voltage Specifications table
5.5
50
0.1
7
1
2
±0.02
70
60
±0.2
16
105
1.0
12
µA
µA
µA
mA
mA
%/V
RR
Ripple Rejection
dB
4
R1118
V
IN
=Set V
OUT
+ 1.5V)
V
IN
∆V
OUT
/∆T
I
LIM
I
PD
V
CEH
V
CEL
en
R
LOW
Input Voltage
Output Voltage Temperature
Coefficient
Short Current
CE Pull-down Constant Current
CE Input Voltage ”H”
CE Input Voltage ”L”
Output Noise
Nch On Resistance
for Auto Discharge
(D version Only)
BW10Hz ~ 100kHz
V
CE
=0V
100
40
−
40°C
<
Ta
<
85°C
=
=
V
OUT
=0V
0.01
1.0
0.4
1.4
±100
40
0.30
0.6
6.0
V
ppm/
°C
mA
µA
V
V
µVrms
Ω
The specifications in
are guaranteed by design.
All specifications are specified under load conditions such that Tj
≈
Ta=25°C except for items of Output Noise, Ripple
Rejection and Output Voltage Temperature Coefficient.
Dropout Voltage
V
OUT
(V)
0.8
0.9
1.0
1.2
1.5
2.0
<
=
<
=
<
=
<
=
<
=
<
=
Dropout Voltage (V)
Condition
TYP.
0.82
0.74
0.66
I
OUT
=150mA
0.54
0.45
0.34
0.27
are guaranteed by design.
MAX.
1.06
0.98
0.90
0.77
0.64
0.49
0.37
V
OUT
<0.9
V
OUT
<1.0
V
OUT
<1.2
V
OUT
<1.5
V
OUT
<2.0
V
OUT
<2.8
<
=
2.8
The values in
V
OUT
TEST CIRCUITS
V
DD
V
OUT
C1
R1118x
Series
CE
GND
C2
V
V
OUT
I
OUT
Standard Test Circuit
5
