2002.6.4
SOT23-5 3-MODE 200mA LDO REGULATOR
R1160X SERIES
I
OUTLINE
The R1160X Series are CMOS-based voltage regulator ICs with high output voltage accuracy, low supply current, and low
ON-resistance. Each of these voltage regulator ICs consists of a voltage reference unit, an error amplifier, resistors for setting
Output Voltage, a current limit circuit, and a chip enable circuit.
These ICs perform with low dropout voltage and a chip enable function. To prevent the destruction by over current, current
limit circuit is included. The R1160X Series have 3-mode. One is standby mode with CE or standby control pin. Other two
modes are realized with ECO pin. Fast Transient Mode (FT mode) and Low Power Mode (LP mode) are alternative with
ECO pin. Consumption current is reduced to 1/10 at Low Power Mode compared with Fast Transient Mode. Output voltage
is maintained between FT mode and LP mode.
The output voltage of these ICs is internally fixed with high accuracy. Since the packages for these ICs are SOT-23-5 and
SON-6 package, high density mounting of the ICs on boards is possible.
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FEATURES
Ultra-Low Supply Current......................................... Typ. 3.5µA(Low Power Mode, V
OUT
≤1.5V),
........................................................................................... Typ. 40µA (Fast Transient Mode)
Standby Mode ........................................................... Typ. 0.1µA
Low Dropout Voltage ................................................ Typ. 0.30V(I
OUT
=200mA Output Voltage=1.0V Type)
........................................................................................... Typ. 0.20V(I
OUT
=200mA Output Voltage=1.5V Type)
........................................................................................... Typ. 0.14V(I
OUT
=200mA Output Voltage=3.0V Type)
High Ripple Rejection ............................................... Typ. 70dB(f=1kHz, FT Mode)
Low Temperature-Drift Coefficient of Output Voltage Typ. ±100ppm/°C
Excellent Line Regulation ......................................... Typ. 0.05%/V
High Output Voltage Accuracy.................................. ±2.0%(±3.0% at LP Mode)
Small Package .......................................................... SOT-23-5(Super Mini-mold), SON6
Output Voltage........................................................... Stepwise setting with a step of 0.1V in the range of 0.8V to 3.3V is
possible
Input Voltage ............................................................. Min. 1.4V
Built-in fold-back protection circuit ..........................Typ. 50mA (Current at short mode)
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APPLICATIONS
Precision Voltage References.
Power source for electrical appliances such as cameras, VCRs and hand-held communication equipment.
Power source for battery-powered equipment.
Rev. 1.12
-1-
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BLOCK DIAGRAM
R1160XXX1A
R1160XXX1B
ECO
V
OUT
V
DD
Vref
Current Limit
ECO
V
OUT
-
+
V
DD
GND
CE
Vref
-
+
Current Limit
GND
CE
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SELECTION GUIDE
The output voltage, chip enable polarity, and the taping type for the ICs can be selected at the user's request. The selection can
be available by designating the part number as shown below;
R1160XXX1X-XX
←Part
Number
↑ ↑ ↑ ↑
a b c d
Code
a
b
c
d
Contents
Designation of Package Type :
N:SOT-23-5 (Mini-mold), D:SON6
Setting Output Voltage (V
OUT
) :
Stepwise setting with a step of 0.1V in the range of 0.8V to 3.3V is possible.
Designation of Chip Enable Option :
A:“L” active type.
B:“H” active type.
Designation of Taping Type :
Refer to Taping Specifications
Rev. 1.12
-2-
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PIN CONFIGURATIONS
SOT- 23 - 5
4
5
(mark side)
1
G
SON6
2
3
3.0 TYP.
0.2 TYP.
2.6 TYP.
0.2 TYP.
1
(0.5)
6
5
4
1.6 TYP.
2
(0.5)
3
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PIN DESCRIPTIONS
Pin No.
1
2
3
4
5
Pin No.
1
2
3
4
5
6
V
DD
NC
V
OUT
ECO
GND
CE or CE
V
DD
GND
CE or CE
ECO
V
OUT
Symbol
Input Pin
No Connection
Output pin
MODE alternative pin
Ground Pin
Chip Enable Pin
Symbol
Input Pin
Ground Pin
Chip Enable Pin
MODE alternative pin
Output pin
Description
Description
Rev. 1.12
-3-
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ABSOLUTE MAXIMUM RATINGS
Item
Input Voltage
Input Voltage(ECO Pin)
Input Voltage(CE/CE Pin)
Output Voltage
Output Current
Power Dissipation(SOT23-5)
Power Dissipation(SON-6)
Operating Temperature Range
Storage Temperature Range
Symbol
V
IN
V
ECO
V
CE
V
OUT
I
OUT
P
D
P
D
Topt
Tstg
Rating
6.5
-0.3 ~ V
IN
+0.3
-0.3 ~ V
IN
+0.3
-0.3 ~ V
IN
+0.3
250
250
150
-40 ~ 85
-55 ~ 125
Unit
V
V
V
V
mA
mW
mW
°C
°C
Rev. 1.12
-4-
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ELECTRICAL CHARACTERISTICS
G
R1160XXX1A
Symbol
Item
Conditions
V
IN
= Set V
OUT
+1V V
ECO
=V
IN
1µA
≤
I
OUT
≤
30mA(Note 1)
V
IN
= Set V
OUT
+1V V
ECO
=GND
1µA
≤
I
OUT
≤
30mA(Note 2)
I
OUT
∆V
OUT
/∆I
OUT
∆V
OUT
/∆I
OUT
V
DIF
I
SS1
I
SS2
Istandby
∆V
OUT
/∆V
IN
∆V
OUT
/∆V
IN
RR
V
IN
∆V
OUT
/∆T
Ilim
R
PU
R
PD
V
CEH
V
CEL
Output Current
Load Regulation(FT Mode)
Load Regulation(LP Mode)
Dropout Voltage
Supply Current(FT Mode)
Supply Current(LP Mode)
Supply Current (Standby)
Line Regulation(FT Mode)
Line Regulation(LP Mode)
Ripple Rejection(FT Mode)
Input Voltage
Output Voltage
Temperature Coefficient
Short Current Limit
CE Pull-up Resistance
ECO Pull-down Resistance
CE , ECO Input Voltage “H”
CE , ECO Input Voltage “L”
Min.
V
OUT
×0.98
(-30mV)
V
OUT
×0.97
(-45mV)
Typ.
Topt=25°C
Max.
Unit
V
OUT
V
×1.02
(30mV)
V
OUT
V
×1.03
(45mV)
mA
mV
mV
V
OUT
Output Voltage
V
IN
- V
OUT
= 0.5V
200
V
IN
≥1.5V
,
V
OUT
≤1.0V
V
IN
= Set V
OUT
+1V, V
ECO
=V
IN
20
40
1mA
≤
I
OUT
≤
200mA
V
IN
= Set V
OUT
+1V, V
ECO
=GND
10
40
1mA
≤
I
OUT
≤
100mA
Refer to the ELECTRICAL CHARACTERISTICS by OUTPUT
VOLTAGE
V
IN
= Set V
OUT
+1V
40
70
V
ECO
=V
IN
V
IN
= Set V
OUT
+1V,
3.5
6.0
V
OUT
≤
1.5V, V
ECO
=GND
V
IN
= Set V
OUT
+1V
4.5
8.0
V
OUT
≥
1.6V, V
ECO
=GND
V
IN
= V
CE
= Set V
OUT
+1V
0.1
1.0
Set V
OUT
+0.5V
≤
V
IN
≤
6V
0.05
0.20
I
OUT
= 30mA, V
ECO
=V
IN
Set V
OUT
+0.5V
≤
V
IN
≤
6V
0.10
0.30
I
OUT
= 30mA, V
ECO
=GND
f = 1kHz, Ripple 0.2Vp-p
V
IN
= Set V
OUT
+1V
70
I
OUT
= 30mA, V
ECO
=V
IN
1.4
6.0
I
OUT
= 30mA
±100
-40°C
≤
Topt
≤
85°C
V
OUT
= 0V
50
2.0
5.0
14.0
1.5
5.0
14.0
1.0
V
IN
0.0
0.3
µA
µA
µA
µA
%/V
%/V
dB
V
ppm
/°C
mA
MΩ
MΩ
V
V
Note1:
±30mV
tolerance for V
OUT
≤1.5V.
Note2:
±45mV
tolerance for V
OUT
≤1.5V.
Rev. 1.12
-5-
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