R1163N151B Datasheet, PDF (8/36 Pages) RICOH electronics devices division – 3-MODE 150mA LDO REGULATOR with the Reverse Current Protection

R1163x
ELECTRICAL CHARACTERISTICS by OUTPUT VOLTAGE
Output Voltage
VOUT (V)
1.5 ^<= VOUT < 1.6
1.6 ^<= VOUT < 1.7
1.7 ^<= VOUT < 1.8
1.8 ^<= VOUT < 2.0
2.0 ^<= VOUT < 2.8
2.8 ^<= VOUT ^<= 4.0
Condition
IOUT = 150mA
Dropout Voltage (V)
VDIF(ECO=H)
Typ.
Max.
0.400
0.680
0.380
0.550
0.350
0.520
0.340
0.490
0.290
0.425
0.250
0.350
Topt = 25°C
VDIF(ECO=L)
Typ.
Max.
0.420
0.680
0.390
0.550
0.370
0.520
0.350
0.490
0.300
0.425
0.250
0.350
TECHNICAL NOTES
When using these ICs, consider the following points:
Phase Compensation
In these ICs, phase compensation is made for securing stable operation even if the load current is varied. For
this purpose, be sure to use a 0.47µF or more ceramic capacitor COUT.
(Test these ICs with as same external components as ones to be used on the PCB.)
When a tantalum capacitor is used with this IC, if the equivalent series resistor (ESR) of the capacitor is large,
output voltage may be unstable.
PCB Layout
Make VDD and GND lines sufficient. If their impedance is high, noise pickup or unstable operation may result.
Connect a capacitor with as much as 1.0µF capacitor between VDD and GND pin as close as possible.
Set external components such as an output capacitor, as close as possible to the ICs and make wiring as
short as possible.
TYPICAL APPLICATION
VDD
OUT
R1163x
C1
Series
GND
C2
CE
ECO
IOUT
V
VOUT
∗External Components
Ex. : C1: Ceramic Capacitor 1.0µF
C2 : Ceramic Capacitor 0.47µF (Murata GRM40B474K)
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