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R5326K025-TR Datasheet(PDF) 8 Page - RICOH electronics devices division

Part # R5326K025-TR
Description  Supply Current (Low Power Mode) Typ. 5.5關A횞2 (VR1&VR2) (IOUT=0mA)
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Manufacturer  RICOH [RICOH electronics devices division]
Direct Link  http://www.ricoh.com
Logo RICOH - RICOH electronics devices division

R5326K025-TR Datasheet(HTML) 8 Page - RICOH electronics devices division

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R5326x
8
TECHNICAL NOTES
When using these ICs, consider the following points:
Mounting on PCB
Make VDD and GND lines sufficient. If their impedance is high, noise pickup or unstable operation may result.
Connect a capacitor with a capacitance value as much as 1.0
μF or more as C1 between VDD and GND pin, and
as close as possible to the pins.
Set external components, especially the output capacitor, as close as possible to the ICs, and make wiring as
short as possible.
Phase Compensation
In these ICs, phase compensation is made for securing stable operation even if the load current is varied. For
this purpose, use capacitors C2 and C3 which are shown below table “Recommended Ceramic capacitor for
output “If you use a tantalum type capacitor and ESR value of the capacitor is Iarge, output might be unstable.
Evaluate your circuit with considering frequency characteristics.
TEST CIRCUITS
R5326x
Series
CE2
VOUT2
CE1
VOUT1
VDD
GND
C1
V
V
VOUT2
IOUT2
VOUT1
IOUT1
C2
C3
C1
=Ceramic 1.0μF
C2,C3
=refer to the term of the external capacitors
R5326x
Series
CE2
VOUT2
CE1
VOUT1
VDD
GND
C1
C2
C3
A
ISS
C1
=Ceramic 1.0μF
C2,C3
=refer to the term of the external capacitors
Fig.1 Standard test Circuit
Fig.2 Supply Current Test Circuit
R5326x
Series
CE2
VOUT2
CE1
VOUT1
VDD
GND
IOUT2
IOUT1
C2
C3
PG
Pulse
Generator
C2,C3
= refer to the term of the external capacitors
R5326x
Series
CE2
VOUT2
CE1
VOUT1
VDD
GND
C1
IOUT1b
C2
C3
IOUT1a
IOUT2a
IOUT2b
C1
=Ceramic 1.0μF
C2,C3
= refer to the term of the external capacitors
Fig.3 Ripple Rejection, Line Transient Response
Fig.4 Load Transient Response Test Circuit
Test Circuit
*R5326N (SOT-23-6) and R5326Z (WLCSP-6-P1) are the discontinued product. As of June in 2016.


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