S-875255CUP-AHB-T2 Seiko Instruments, S-875255CUP-AHB-T2 Datasheet - Page 36

• Manufacturer Part Number: S-875255CUP-AHB-T2
• Description: Linear Regulators - Standard 5.2V with 5.5V Detec
• Manufacturer: Seiko Instruments

Specifications of S-875255CUP-AHB-T2

• Polarity: Positive
• Number Of Outputs: 1
• Output Type: Fixed
• Output Voltage: 5.2 V
• Output Current: 0.6 mA
• Line Regulation: 50 mV
• Load Regulation: 50 mV
• Input Voltage Max: 24 V
• Maximum Operating Temperature: + 85 C
• Minimum Operating Temperature: - 40 C
• Package / Case: SOT-89-5
• Maximum Power Dissipation: 1000 mW
• Mounting Style: SMD/SMT
• Output Voltage Tolerance: +/- 2.4 %
• Voltage Regulation Accuracy: 2.4 %
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

36
HIGH WITHSTAND-VOLTAGE VOLTAGE REGULATOR WITH RESET FUNCTION
S-87x Series
S-8750xxx,
S-8730xxx
2. Load transient response characteristics due to load current fluctuation
Series
An overshoot and an undershoot are caused in the output voltage if the load current is changed from
50 µA to 40 mA while the input voltage is kept constant. Figure 30 shows the output voltage fluctuation
due to a change in the load current. The measuring circuit is shown in Figure 31 for reference. The
latter half of this section describes ringing waveform and parameter dependency.
*1. R
*2. R
*3. AL electrolytic capacitor
Power
supply
1
0
=
=
V
V
Output Voltage deviation
Load current (I
Load capacitance (C
Power supply voltage (V
Temperature (Ta)
40
50
OUT
OUT
mA
µ
[
[
Figure 30 Output voltage fluctuation due to a change in the load current
A
] V
] V
Table 21 Parameter dependency due to load current fluctuation
10 µF
Parameter
[Ω]
[Ω]
Load current
OUT
+
−
)
VIN
L
)
IN
)
50 µA
Series
S-87x
Figure 31 Measuring circuit
10 to 60 mA, C
1 to 47 µF, I
(V
−40 °C to +85 °C
VSS
OUT
Seiko Instruments Inc.
+1) to 24 V
Conditions
VOUT
OUT
L
=40 mA
=10 µF
R
1
*1
R
0
Method to decrease
*2
40 mA
Low temperature
overshoot
Decrease
Increase
Increase
+
−
C
Overshoot
Undershoot
L
*3
Method to decrease
Low temperature
Oscilloscope
10:1
undershoot
Decrease
Increase
Increase
Rev.6.1
probe
_10