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R1131N231A 데이터시트 PDF




RICOH에서 제조한 전자 부품 R1131N231A은 전자 산업 및 응용 분야에서
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부품번호 R1131N231A 기능
기능 Low Voltage 300mA LDO REGULATOR
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R1131N231A 데이터시트, 핀배열, 회로
R1131x SERIES
Low Voltage 300mA LDO REGULATOR
NO.EA-116-061102
OUTLINE
The R1131x Series are CMOS-based low voltage regulator ICs with output voltage range from 0.8V to 3.3V.
The minimum operating voltage is 1.4V. Each of these voltage regulator ICs consists of a voltage reference unit,
www.DataSheeta4nU.ceormror amplifier, resistors for setting output voltage, a current limit circuit, and a chip enable circuit.
To prevent the destruction by over current, current limit circuit is included. Standby mode realizes ultra small
consumption current.
The output voltage of these ICs is internally fixed with high accuracy. Since the packages for these ICs are
SOT-23-5, SON-6, and HSON-6, high density mounting of the ICs on boards is possible.
FEATURES
Supply Current ..................................................Typ. 80µA (VOUT < 1.8V)
Typ. 60µA (VOUT >= 1.8V)
Standby Mode ...................................................Typ. 0.1µA
Low Dropout Voltage.........................................Typ. 0.48V(IOUT=300mA Output Voltage=1.0V Type)
Typ. 0.31V(IOUT=300mA Output Voltage=1.5V Type)
Typ. 0.23V(IOUT=300mA Output Voltage=3.0V Type)
Ripple Rejection................................................Typ. 65dB(f=1kHz)
Low Temperature-Drift Coefficient of Output Voltage Typ. ±100ppm/°C
Excellent Line Regulation .................................Typ. 0.01%/V
Output Voltage Accuracy...................................±2.0%
Packages .........................................................SOT-23-5, SON-6, HSON-6
Output Voltage Range.......................................0.8V to 3.3V
Input Voltage Range .........................................1.4V to 3.3V
Built-in fold-back protection circuit ....................Typ. 50mA (Current at short mode)
External Capacitors...........................................CIN=COUT=Tantalum 1.0µF (VOUT < 1.0V)
CIN=COUT=Ceramic 1.0µF (VOUT >= 1.0V)
APPLICATIONS
Precision Voltage References.
Power source for electrical appliances such as cameras, VCRs and hand-held communication equipment.
Power source for battery-powered equipment.
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R1131N231A pdf, 반도체, 판매, 대치품
R1131x
ELECTRICAL CHARACTERISTICS
R1131xxxxA
Topt=25°C
Symbol
Item
VOUT Output Voltage
IOUT
VOUT/
www.DataSheet4UIO.cUoTm
VDIF
Output Current
Load Regulation
Dropout Voltage
Conditions
Min. Typ. Max. Unit
VIN=Set VOUT+1V
1µA <= IOUT <= 30mA
VIN VOUT=1.0V
VOUT < 1.8V
VOUT <= 1.8V
×0.98
30
300
×1.02
+30
V
mV
mA
VIN=Set VOUT+1V,
1mA <= IOUT <= 300mA
40 70 mV
Refer to the ELECTRICAL CHARACTERISTICS by OUTPUT VOLTAGE
ISS1
Istandby
Supply Current
Supply Current (Standby)
VIN=Set VOUT+1V,VOUT < 1.8V
VIN=Set VOUT+1V,VOUT >= 1.8V
VIN=VCE=Set VOUT+1V
VOUT/
VIN
Line Regulation
RR Ripple Rejection
IOUT=30mA
VOUT+0.5V <= VIN <= 6.0V(VOUT > 0.9V)
1.4V <= VIN <= 6.0V(VOUT <= 0.9V)
f=1kHz, Ripple 0.2Vp-p
VIN=Set VOUT+1V,IOUT=30mA
VIN Input Voltage
VOUT/
Topt
Ilim
Output Voltage
Temperature Coefficient
Short Current Limit
IOUT=30mA
40°C <= Topt <= 85°C
VOUT=0V
RPU CE Pull-up Resistance
VCEH CE Input Voltage “H”
VCEL CE Input Voltage “L”
en Output Noise
BW=10Hz to 100kHz
80 111 µA
60 90 µA
0.1 1.0 µA
0.01 0.15 %/V
1.4
1.87
1.0
0.0
65
±100
50
5.0
30
dB
6.0 V
ppm
/°C
mA
12.0 M
6.0 V
0.3 V
µVrms
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R1131N231A 전자부품, 판매, 대치품
TEST CIRCUIT
VDD OUT
R1131x
C1
Series
C2 IOUT VOUT
GND
V
www.DataSheet4U.com
CE CE
C1=C2=Tantalum VOUT <1.0V)
C1=C2=Ceramic1.0µF (VOUT >= 1.0V)
Standard Test Circuit
R1131x
ISS
A
C1
VDD
OUT
R1131x
Series
GND
C2
OUT
CE CE
C1=C2=Tantalum VOUT <1.0V)
C1=C2=Ceramic1.0µF (VOUT >= 1.0V)
Supply Current Test Circuit
Pulse
Generator
P.G
VDD OUT
R1131x
Series
GND
C2
IOUT
Pulse
Generator
P.G
VDD OUT
R1131x
Series
GND
C2
IOUT
CE CE
C2=Tantalum VOUT <1.0V)
C2=Ceramic1.0µF (VOUT >= 1.0V)
Ripple Rejection, Line Transient Response
Test Circuit
CE CE
C2=Tantalum VOUT <1.0V)
C2=Ceramic1.0µF (VOUT >= 1.0V)
Load Transient Response Test Circuit
C1
Pulse
Generato
VDD OUT
R1131x
Series
GND
CE CE
C2
IOUT
Input signal waveform
to CE pin is shown below.
Set VOUT
0 V +10V
C1=C2=Tantalum VOUT <1.0V)
C1=C2=Ceramic1.0µF (VOUT >= 1.0V)
Turn on Speed vifh CE pin Test Circuit
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