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PDF R1131D291D Data sheet ( Hoja de datos )

Número de pieza R1131D291D
Descripción Low Voltage 300mA LDO REGULATOR
Fabricantes RICOH 
Logotipo RICOH Logotipo



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No Preview Available ! R1131D291D Hoja de datos, Descripción, Manual

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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R1131D291D pdf
R1131x
R1131xxxxB/D
Topt=25°C
Symbol
Item
VOUT Output Voltage
IOUT
VOUT/
IOUT
www.DataSheet4U.cVoDmIF
Output Current
Load Regulation
Dropout Voltage
Conditions
Min. Typ. Max. Unit
VIN=Set VOUT+1V
1µA <= IOUT <= 30mA
VINVOUT=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
VOUT/
VIN
RR
VIN
VOUT/
Topt
Ilim
RPD
VCEH
VCEL
en
RLOW
Supply Current
VIN=Set VOUT+1V,VOUT < 1.8V
Supply Current (Standby)
VIN=Set VOUT+1V,VOUT >= 1.8V
VIN=Set VOUT+1V, VCE=GND
Line Regulation
IOUT=30mA
VOUT+0.5V <= VIN <= 6.0V(VOUT > 0.9V)
1.4V <= VIN <= 6.0V(VOUT <= 0.9V)
Ripple Rejection
f=1kHz, Ripple 0.2Vp-p
VIN=Set VOUT+1V,IOUT=30mA
Input Voltage
Output Voltage
Temperature Coefficient
Short Current Limit
IOUT=30mA
40°C <= Topt <= 85°C
VOUT=0V
CE Pull-down Resistance
CE Input Voltage “H”
CE Input Voltage “L”
Output Noise
BW=10Hz to 100kHz
Nch On Resistance for auto
discharge
VCE=0V
(applied to D version only)
1.4
1.87
1.0
0.0
80 111 µA
60 90 µA
0.1 1.0 µA
0.01 0.15 %/V
65
±100
50
5.0
30
dB
6.0
12.0
VIN
0.3
V
ppm
/°C
mA
M
V
V
µVrms
60
Electrical Characteristics by Output Voltage
Output Voltage
VOUT (V)
0.8=VOUT
0.9=VOUT
1.0 <= VOUT < 1.5
1.5 <= VOUT < 2.6
2.6 <= VOUT <= 3.3
Dropout Voltage VDIF (mV)
Condition
Typ.
620
550
IOUT=300mA
480
310
230
Max.
850
780
700
450
350
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R1131D291D arduino
www.DataSheet4U.com
80
70
60
50
40
30
20
10
0-40 -25
R1131x26xx
0 25 50
Temperature Topt(°C)
75 85
6) Dropout Voltage vs. Output Current
R1131x08xx
0.8
0.7
0.6
0.5
0.4
0.3 85°C
0.2 25°C
0.1 -40°C
0 0 50 100 150 200 250 300
Output Current IOUT(mA)
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
00
R1131x10xx
85°C
25°C
-40°C
50 100 150 200 250 300
Output Current IOUT(mA)
R1131x
80
70
60
50
40
30
20
10
0-40 -25
R1131x33xx
0 25 50
Temperature Topt(°C)
75 85
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
00
R1131x09xx
85°C
25°C
-40°C
50 100 150 200 250 300
Output Current IOUT(mA)
0.40
0.35
0.30
0.25
0.20
0.15
0.10
0.05
00
R1131x15xx
85°C
25°C
-40°C
50 100 150 200 250 300
Output Current IOUT(mA)
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