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PDF R1161x Data sheet ( Hoja de datos )
| Número de pieza | R1161x | |
| Descripción | 3-MODE 300mA LDO REGULATOR | |
| Fabricantes | RICOH | |
| Logotipo |  |
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R1161x SERIES
3-MODE 300mA LDO REGULATOR
NO.EA-106-0511
OUTLINE
The R1161x 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 R1161x Series have 3-mode. One is standby mode with CE or
standby control pin. Standby mode realizes ultra small consumption current off mode. 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 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, SON-6, and HSON-6, high density mounting of the ICs on boards is possible.
FEATURES
x Ultra-Low Supply Current .................................Typ. 3.5PA (Low Power Mode, VOUT<1.6V),
Typ. 80PA (Fast Transient Mode, VOUT<1.8V)
Typ. 60PA (Fast Transient Mode, VOUT ! 1.8V)
x Standby Mode ...................................................Typ. 0.1PA
x 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)
x High Ripple Rejection .......................................Typ. 65dB(f 1kHz, FT Mode)
x Low Temperature-Drift Coefficient of Output Voltage Typ. ±100ppm/qC
x Excellent Line Regulation .................................Typ. 0.01%/V (at Fast Transient Mode)
x High Output Voltage Accuracy ..........................r2.0%(r3.0% at LP Mode)
x Small Package ................................................SOT-23-5 (Super Mini-mold), SON-6, HSON-6
x Output Voltage ..................................................Stepwise setting with a step of 0.1V in the range of 0.8V to
3.3V is possible
x Input Voltage .....................................................Min. 1.40V(VOUT ! 1.0V)
Min. 1.45V(VOUT<1.0V)
x Built-in fold-back protection circuit ....................Typ. 50mA (Current at short mode)
x External Capacitors...........................................CIN COUT Tantalum 1.0PF (VOUT<1.0V)
CIN COUT Ceramic 1.0PF (VOUT ! 1.0V)
APPLICATIONS
x Precision Voltage References.
x Power source for electrical appliances such as cameras, VCRs and hand-held communication equipment.
x Power source for battery-powered equipment.
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R1161x
ELECTRICAL CHARACTERISTICS
x R1161xxxxA
Topt=25qC
Symbol
Item
Conditions
Min. Typ. Max. Unit
VOUT
IOUT
'VOUT/
'IOUT
'VOUT/
'IOUT
VDIF
ISS1
ISS2
Istandby
'VOUT/
'VIN
'VOUT/
'VIN
RR
VIN
'VOUT/
'Topt
Ilim
RPU
RPD
VCEH
Output Voltage
VIN Set VOUT1V,VECO VIN
1PA IOUT 30mA Note 1
VIN Set VOUT1V,VECO GND
1PA IOUT 30mA Note 2
u0.98
(-30mV)
u0.97
(-45mV)
u1.02
(30mV)
u1.03
(45mV)
V
V
Output Current
VINVOUT 1.0V
300 mA
Load Regulation(FT Mode)
VIN Set VOUT1V,VECO VIN
1mA IOUT 300mA
40 70 mV
Load Regulation(LP Mode)
VIN Set VOUT1V,VECO GND
1mA IOUT 100mA
15 30 mV
Dropout Voltage
Refer to the ELECTRICAL CHARACTERISTICS by OUTPUT VOLTAGE
Supply Current(FT Mode)
VIN Set VOUT1V
VECO VIN, VOUT<1.8V
VIN Set VOUT1V
VECO VIN, VOUT ! 1.8V
80 111 PA
60 90 PA
Supply Current(LP Mode)
VIN Set VOUT1V,
VOUT<1.6V,VECO GND
VIN Set VOUT1V
VOUT ! 1.6V,VECO=GND
3.5 8.0 PA
4.5 9.0 PA
Supply Current (Standby) VIN VCE Set VOUT+1V, VECO=GND
0.1 1.0 PA
Line Regulation(FT Mode)
Set VOUT0.5V VIN 6.0V
IOUT 30mA, VECO VIN
Set VOUT < 0.9V: 1.4V VIN 6.0V
0.01 0.15 %/V
Line Regulation(LP Mode)
Set VOUT 0.5V VIN 6.0V
IOUT 30mA, VECO GND
Set VOUT<0.9V:1.4V VIN 6.0V
0.05 0.20 %/V
Ripple Rejection(FT Mode)
f 1kHz, Ripple 0.2Vp-p
VIN Set VOUT 1V
IOUT 30mA, VECO VIN
65 dB
Input Voltage
1.4 6.0 V
Output Voltage
Temperature Coefficient
IOUT 30mA
40qC Topt 85qC
r100
ppm
/qC
Short Current Limit
VOUT 0V
50 mA
CE Pull-up Resistance
1.87 5.00 12.00 M:
ECO Pull-down Resistance
1.87 5.00 12.00 M:
CE , ECO Input Voltage “H”
1.0 6.0 V
VCEL CE , ECO Input Voltage “L”
0.0 0.3 V
VEN Output Noise
BW 10Hz to 100kHz
30 PVrms
Note1: r30mV tolerance for VOUT 1.5V.
Note2: r45mV tolerance for VOUT 1.5V.
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TYPICAL CHARACTERISTICS
1) Output Voltage vs. Output Current
R1161x08xx (ECO=H)
1.0
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0.0 0
VIN =2.8V
1.45V
100 200 300 400 500 600
Output Current lOUT (mA)
1.6
1.4
1.2
1.0
0.8
0.6
0.4
0.2
0.0 0
R1161x15xx (ECO=H)
VIN =3.5V
1.8V
100 200 300 400 500 600
Output Current lOUT (mA)
3.5
3.0
2.5
2.0
1.5
1.0
0.5
0.0
0
R1161x26xx (ECO=H)
VIN =4.6V
2.9V
100 200 300 400 500 600
Output Current lOUT (mA)
R1161x
1.0
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0.0 0
R1161x08xx (ECO=L)
1.45V
VIN =2.8V
100 200 300 400 500 600
Output Current lOUT (mA)
1.6
1.4
1.2
1.0
0.8
0.6
0.4
0.2
0.0 0
R1161x15xx (ECO=L)
VIN =3.5V
1.8V
100 200 300 400 500 600
Output Current lOUT (mA)
3.5
3.0
2.5
2.0
1.5
1.0
0.5
0.0
0
R1161x26xx (ECO=L)
VIN =4.6V
2.9V
100 200 300 400 500
Output Current lOUT (mA)
600
11
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| Páginas | Total 30 Páginas | |
| PDF Descargar | [ Datasheet R1161x.PDF ] | |
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