HIGH WITHSTAND-VOLTAGE VOLTAGE REGULATOR WITH RESET FUNCTION
S-87x Series
Rev.7.2_00
Type 1 (Rectangle wave between (VOUT+1) V and 10 V)
IOUT=40 mA, CL=10 μF, Ta=25°C
10 V
Input voltage
[1 V/div]
(VOUT+1) V
Output voltage
[200 mV/div]
5 ms/div
Overshoot amount: 350 mV
Undershoot amount: 325 mV
Figure 29 Ringing waveform (Type 1)
Table 20 Parameter dependency (Type 1)
Method to decrease Method to decrease
Series
Parameter
Conditions
overshoot
undershoot
S-8750xxx
Load current (IOUT
Load capacitance (CL)
Input fluctuation (ΔVIN
)
10 to 60 mA, CL=10 μF
1 to 47 μF, IOUT=40 mA
2 to 4 V
Decrease
Increase
Decrease
Decrease
Increase
Decrease
*1
)
4 to 18 V
Increase
Decrease
Temperature (Ta)
−40 °C to +85 °C
10 to 60 mA, CL=10 μF
1 to 47 μF, IOUT=40 mA
4 to 20 V
Low temperature
Increase
Low temperature
Decrease
S-8730xxx
Load current (IOUT
Load capacitance (CL)
Input fluctuation (ΔVIN
)
Increase
Increase
Increase
Decrease
*1
)
Temperature (Ta)
−40 °C to +85 °C
Low temperature
Low temperature
*1. High voltage value − low voltage value
For reference, the following pages describe the ringing in VOUT measured using the output load current (IOUT),
output load capacitance (CL), input fluctuation width (ΔVIN), and temperature (Ta) as parameters.
34
Seiko Instruments Inc.
SII [ SEIKO INSTRUMENTS INC ]
