RN5RZ RICOH electronics devices division, RN5RZ Datasheet - Page 20

• Manufacturer Part Number: RN5RZ
• Description: LOW DROP-OUT AND LOW NOISE VOLTAGE REGULATOR
• Manufacturer: RICOH electronics devices division

FOR STABLE OPERATION
• Countermeasure for Noise
The relation between output current (I
described below. The conditions when the noise level is under 40µV (Avg.) are marked as the hatched area in the
graph.
[Measuring conditions]
Frequency band : 0Hz to 1MHz
Temperature : 25˚C
100.0
10.0
1.0
0.1
0.0
0.0
20.0
Ceramic Capacitor 1µF
Output Current I
V
IN
40.0
: Noise level is under 40µV
Ceramic capacitor
0.01µF
60.0
Measuring circuit for white noise ; RN5RZ30B
OUT
2
5
(mA)
OUT
RN5RZ SERIES
80.0
V
CE
IN
) and Equivalent Series Resistance (ESR) in the output capacitor are
GND
100.0
1
V
OUT
3
100.0
10.0
Ceramic
Capacitor
1.0
0.1
0.0
ESR
0.0
I
OUT
20.0
Ceramic Capacitor 2.2µF
Output Current I
S.A.
40.0
Spectrum
Analyzer
: Noise level is under 40µV
60.0
OUT
(mA)
80.0
RN5RZ
100.0
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