R1160x SERIES
3-MODE 200mA LDO REGULATOR
NO.EA-083-0511
OUTLINE
The R1160x Series consist of 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 packages, high density mounting of the ICs on boards is possible.
FEATURES
Ultra-Low Supply Current .................................Typ. 3.5 A (Low Power Mode,V
OUT
1.5V)
Typ. 40 A (Fast Transient Mode)
Standby Mode ...................................................Typ. 0.1 A
Low Dropout Voltage.........................................Typ. 0.30V (I
OUT
200mA 3.0V Output Voltage=1.0V Type)
Typ. 0.20V (I
OUT
200mA 3.0V Output Voltage=1.5V Type)
Typ. 0.14V (I
OUT
200mA 3.0V 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)
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)
Small Packages ..............................................SOT-23-5 (Super Mini-mold),SON-6
APPLICATIONS
Precision Voltage References.
Power source for electrical appliances such as cameras, VCRs and hand-held communication equipment.
Power source for battery-powered equipment.
1
R1160x
BLOCK DIAGRAMS
R1160xxx1A
ECO
R1160xxx1B
ECO
V
DD
-
+
Vref
Current Limit
CE
V
OUT
V
DD
-
+
Vref
Current Limit
V
OUT
GND
CE
GND
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
a b
Code
a
b
c
d
c
d
Part Number
Contents
Designation of Package Type :
N: SOT-23-5 (Mini mold)
D: SON-6
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; TR type is the standard direction.
2
R1160x
PIN CONFIGURATION
SOT-23-5
5
4
SON-6
Top View
Bottom View
6
5
4
4
5
6
(mark side)
1
2
3
1
2
3
3
2
1
PIN DESCRIPTIONS
SOT-23-5
Pin No
1
2
3
4
5
Symbol
V
DD
GND
CE
or CE
SON-6
Pin Description
Input Pin
Ground Pin
Chip Enable Pin
MODE alternative pin
Output pin
Pin No
1
2
3
4
5
6
Symbol
V
DD
NC
V
OUT
ECO
GND
CE
or CE
Pin Description
Input Pin
No Connection
Output pin
MODE alternative pin
Ground Pin
Chip Enable Pin
ECO
V
OUT
* Tab in the
parts have GND level.
(They are connected to the reverse side of this IC.)
Do not connect to other wires or land patterns.
ABSOLUTE MAXIMUM RATINGS
Symbol
V
IN
V
ECO
V
CE
V
OUT
I
OUT
P
D
Topt
Tstg
Input Voltage
Input Voltage ( ECO Pin)
Input Voltage (
CE
or CE Pin)
Output Voltage
Output Current
Power Dissipation (SOT-23-5)*
Power Dissipation (SON-6)*
Operating Temperature Range
Storage Temperature Range
Item
Rating
6.5
6.5
6.5
0.3 ~ V
IN
0.3
250
420
500
40 ~ 85
55 ~ 125
Unit
V
V
V
V
mA
mW
mW
C
C
* ) For Power Dissipation, please refer to PACKAGE INFORMATION to be described.
3
R1160x
ELECTRICAL CHARACTERISTICS
R1160xxx1A
Topt 25 C
Symbol
V
OUT
Item
Output Voltage
Conditions
V
IN
Set V
OUT
1V,V
ECO
V
IN
1 A I
OUT
30mA *
1
V
IN
Set V
OUT
1V,V
ECO
=GND
1 A I
OUT
30mA *
2
V
IN
V
OUT
0.5V
V
IN
1.5V,V
OUT
1.0V
Min.
0.980
(-30mV)
0.970
(-45mV)
200
Typ.
Max.
1.020
(30mV)
1.030
(45mV)
Unit
V
V
mA
I
OUT
Output Current
Load Regulation(FT Mode)
V
OUT
/ I
OUT
Load Regulation(LP Mode)
V
DIF
I
SS1
Dropout Voltage
Supply Current (FT Mode)
V
IN
Set V
OUT
1V, V
ECO
V
IN
1mA I
OUT
200mA
20
40
mV
V
IN
Set V
OUT
1V, V
ECO
GND
10
40
mV
1mA I
OUT
100mA
Refer to the ELECTRICAL CHARACTERISTICS by OUTPUT
VOLTAGE
V
IN
Set V
OUT
1V
V
ECO
V
IN,
I
OUT
0mA
V
IN
Set V
OUT
1V, I
OUT
0mA
V
OUT
1.5V, V
ECO
GND
V
IN
Set V
OUT
1V, I
OUT
0mA
V
OUT
1.6V, V
ECO
GND
V
IN
V
CE
Set V
OUT
1V
V
ECO
GND
Set V
OUT
0.5V V
IN
I
OUT
30mA,V
ECO
V
IN,
6.0V
40
3.5
4.5
0.1
0.05
0.10
70
1.4
I
OUT
30mA
40 C Topt
V
OUT
0V
2.0
1.5
1.0
0.0
85 C
100
50
5.0
5.0
14.0
14.0
6.0
0.3
6.0
70
6.0
8.0
1.0
0.20
0.30
A
A
A
A
%/V
%/V
dB
V
ppm
/C
mA
M
M
V
V
I
SS2
Supply Current (LP Mode)
Istandby
Supply Current (Standby)
Line Regulation (FT Mode)
V
OUT
/ V
IN
Line Regulation (LP Mode)
RR
V
IN
V
OUT
/
Topt
Ilim
R
PU
R
PD
V
CEH
V
CEL
Ripple Rejection (FT Mode)
Input Voltage
Output Voltage
Temperature Coefficient
Short Current Limit
CE
Pull-up Resistance
Set V
OUT
0.5V V
IN
6.0V
I
OUT
30mA,V
ECO
GND
f=1kHz,Ripple 0.2Vp-p
V
IN
Set V
OUT
1V
I
OUT
30mA,V
ECO
V
IN
ECO Pull-down Resistance
CE
,ECO Input Voltage “H”
CE
,ECO Input Voltage “L”
*1 : 30mV Tolerance for V
OUT
*2 : 45mV Tolerance for V
OUT
1.5V
1.5V
4
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