R1171 Datasheet, PDF (6/24 Pages) RICOH electronics devices division – 2.0A/1.5A LDO REGULATOR

R1171x
• R1171Sxx1B
Topt=25°C
Symbol
Item
Conditions
Min. Typ. Max. Unit
VOUT
ΔVOUT/
ΔIOUT
VDIF
Reference Voltage for
Adjustable Voltage Regulator
Load Regulation
Dropout Voltage
VIN−VOUT=1.0V
IOUT=200mA
×0.98
×1.02 V
VIN−VOUT=1.0V
1mA ^<= IOUT ^<= 300mA
10
60 mV
1.5 ^<= VOUT<1.6
0.16 0.35
1.6 ^<= VOUT<1.7
0.14 0.32
IOUT=300mA ^{1.7 <= VOUT<1.8}
1.8 ^<= VOUT<2.0
0.13 0.28
V
0.12 0.24
2.0 ^<= VOUT<2.5
0.10 0.21
2.5 ^<= VOUT ^<= 5.0
0.09 0.18
ISS
Supply Current
VIN−VOUT=1.0V, VCE=VIN
130 320 μA
Istandby Standby Current
VIN−VOUT=1.0V, VCE=0V
0.1 2.0 μA
ΔVOUT/ΔVIN Line Regulation
RR
Ripple Rejection
IOUT=200mA
f=1kHz, Ripple 0.5Vp-p
Refer to the following table
VIN
Input Voltage
2.1
6.0
V
ΔVOUT/
ΔTopt
ILIM
Output Voltage
Temperature Coefficient
Output Current
IOUT=10mA
−40°C ^<= Topt ^<= 85°C
VIN−VOUT=1.0V
±100
1.5
ppm/°C
A
ISC
Short Current Limit
VOUT=0V
200
mA
RPD
Pull-down resistance
for CE pin
2.5 5.0 10.0 MΩ
VCEH CE Input Voltage "H"
1.2
VIN
V
VCEL
CE Input Voltage "L"
0
0.25 V
TTSD
Thermal Shutdown
Detector Threshold Temperature
Junction Temperature
TTSR
Thermal Shutdown
Released Temperature
Junction Temperature
150
°C
120
°C
• Line Regulation by Output Voltage
Output Voltage
VOUT (V)
1.5 ^<= VOUT < 1.6
1.6 ^<= VOUT ^<= 5.0
Line Regulation ΔVOUT/ΔVIN (%/V)
Condition
Typ.
IOUT=200mA, 2.1V ^<= VIN ^<= 6.0V
IOUT=200mA, VOUT+0.5V ^<= VIN ^<= 6.0V
0.05
Topt=25°C
Max.
0.30
• Ripple Rejection by Output Voltage
Output Voltage
VOUT (V)
1.5 ^<= VOUT < 4.7
4.7 ^<= VOUT ^<= 5.0
Ripple Rejection RR (dB)
Condition
f=1kHz, Ripple 0.5Vp-p, VIN−VOUT=1.0V
f=1kHz, Ripple 0.5Vp-p, VIN=5.75V
Topt=25°C
Typ.
50
6