2001.6.21
SOT23-5 3-MODE 200mA LDO REGULATOR
R1160N SERIES
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OUTLINE
The R1160N Series are voltage regulator ICs with high output voltage accuracy, low supply current, and low ON-resistance by
CMOS process. 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 R1160N 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 package for these ICs is SOT-23-5 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)
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. 1.10
-1-
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BLOCK DIAGRAM
R1160NXX1A
R1160NXX1B
4
1
V
DD
Vref
Current Limit
ECO
V
OUT
4
1
-
+
Vref
Current Limit
ECO
V
OUT
5
-
+
GND
5
V
DD
GND
CE
3
2
CE
3
2
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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;
R1160NXX1X-XX
←Part
Number
↑ ↑ ↑ ↑
a b c d
Code
a
b
c
d
Contents
Designation of Package Type :
N:SOT-23-5 (Mini-mold)
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.
Rev. 1.10
-2-
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