njw4180 New Japan Radio Co.,Ltd, njw4180 Datasheet - Page 5

• Manufacturer Part Number: njw4180
• Description: High Voltage Low Current Consumption Regulator
• Manufacturer: New Japan Radio Co.,Ltd

Ver.2011-01-27
*Input Capacitance C
*Output Capacitance C
TEST CIRCUIT
TYPICAL APPLICATION
equivalent series resistance (ESR) influences stability of the regulator.
This product is designed to work with a low ESR capacitor for the C
greater value is essential for stable operation.
compensation.
GND terminal with minimal wiring. The recommended capacitance depends on the output voltage. Low voltage
regulator requires greater value of the C
voltage against rapid load change.
power supply impedance or a long power supply line.
Use the C
C
Output capacitor (C
Use of a smaller C
Therefore, use C
Use of a greater C
Input Capacitance (C
IN
should connect between GND and V
IN
value of 0.1µF greater to avoid the problem.
V
IN
V
IN
IN
O
O
O
O
with the recommended capacitance or greater value and connect between V
O
A
reduces output noise and ripple output, and also improves transient response of the output
may cause excess output noise or oscillation of the regulator due to lack of the phase
) is required for a phase compensation of the internal error amplifier. The capacitance and the
IN)
I
) is required to prevent oscillation and reduce power supply ripple for applications with high
IN
0.1µF
0.1µF
O
. Thus, check the recommended capacitance for each output voltage.
V
IN
IN
as short as possible.
NJW4180
V
IN
GND
NJW4180
GND
V
OUT
V
OUT
O
; however, use of recommended capacitance or
(ceramic)
1µF
1µF
I
OUT
V
V
OUT
V
OUT
NJW4180
O
terminal and
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