S-875255CUP-AHB-T2 Seiko Instruments, S-875255CUP-AHB-T2 Datasheet - Page 31

• 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

Rev.6.1
An undershoot or an overshoot may occur in the output voltage of the voltage regulator if input voltage or
load current fluctuates transiently. If an undershoot is large, the voltage detector operates to output reset
signal in the B type in which the voltage detector detects the output voltage of the regulator. If an overshoot
is large, the load circuit is adversely affected. Therefore it is important to determine the capacitor value so as
to minimize undershoot and overshoot.
1. Line: Transient characteristics due to input voltage fluctuation
Transient Characteristics
Input voltage fluctuation differs depending on the types of the signal applied: type 1 which is a rectangular
wave between (V
Figure 25 to 26) The ringing waveforms and parameter dependency of each type are described below.
The measuring circuit is shown in Figure 27 for reference.
Remark Rise/fall time (time between 10 % and 90 %) is 1 µs.
*1. AL electrolytic capacitor
HIGH WITHSTAND-VOLTAGE VOLTAGE REGULATOR WITH RESET FUNCTION
_10
P.G.
Input voltage
Output voltage
deviation
Fast amplifier
Fiogure 25 Rectangular wave between (V
OUT
+1) V and 10 V, and type 2 which is a rectangular wave from 0 V to 10 V. (Refer to
Output voltage
deviation
Input voltage
Figure 26 Rectangular wave from 0 V to 10 V (Type 2)
10 V
VIN
0 V
Figure 27 Measuring circuit
(V
S-87x Series
Seiko Instruments Inc.
OUT
+1) V
VSS
10 V
VOUT
R
O
OUT
+ + + + 1) V and 10 V (Type 1)
Undershoot
Overshoot
+
−
C
L
*1
Overshoot
Undershoot
Oscilloscope
10:1
S-87x Series
probe
31