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R1163K251D Datasheet(PDF) 8 Page - RICOH electronics devices division

Part # R1163K251D
Description  3-MODE 150mA LDO REGULATOR with the Reverse Current Protection
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Manufacturer  RICOH [RICOH electronics devices division]
Direct Link  http://www.ricoh.com
Logo RICOH - RICOH electronics devices division

R1163K251D Datasheet(HTML) 8 Page - RICOH electronics devices division

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R1163x
8
ELECTRICAL CHARACTERISTICS by OUTPUT VOLTAGE
Topt
= 25°C
Dropout Voltage (V)
VDIF(ECO
=H)
VDIF(ECO
=L)
Output Voltage
VOUT (V)
Condition
Typ.
Max.
Typ.
Max.
1.5 <
= VOUT < 1.6
0.400
0.680
0.420
0.680
1.6 <
= VOUT < 1.7
0.380
0.550
0.390
0.550
1.7 <
= VOUT < 1.8
0.350
0.520
0.370
0.520
1.8 <
= VOUT < 2.0
0.340
0.490
0.350
0.490
2.0 <
= VOUT < 2.8
0.290
0.425
0.300
0.425
2.8 <
= VOUT <
= 4.0
IOUT
= 150mA
0.250
0.350
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 0.47
µF 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 1.0
µF 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
C1
C2
VDD
OUT
CE
GND
R1163x
Series
ECO
VOUT
V
IOUT
∗External Components
Ex. : C1: Ceramic Capacitor 1.0
µF
C2 : Ceramic Capacitor 0.47
µF (Murata GRM40B474K)


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