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參數(shù)資料
| 型號： | S-81227 |
| 廠商： | Seiko Instruments Inc. |
| 英文描述： | 2.7V±2.4% High-Precision Three-Terminal Positive Voltage Regulator(輸出電壓2.7V±2.4%，高精度三端（輸入端，輸出端，接地端）正電壓穩(wěn)壓器) |
| 中文描述： | 2.7 ± 2.4％高精度三端穩(wěn)壓器（輸出電壓為2.7V ± 2.4％，高精度三端（輸入端，輸出端，接地端）正電壓穩(wěn)壓器） |
| 文件頁數(shù)： | 15/33頁 |
| 文件大小： | 337K |
| 代理商： | S-81227 |
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HIGH-PRECISION VOLTAGE REGULATOR
S-812XXSG Series
14
Seiko Instruments Inc.
3
Temperature characteristic of output voltage
The temperature characteristic of the output voltage is expressed by the following formula in the range of
-40 C to 85 C.
* V
REF
is 0.7 V min., 0.8 V typ., 0.9 V max.
Transient Response
1.
Line transient response
The overshoot and undershoot are caused in the output voltage if the input voltage fluctuates while the output
current is constant. Figure 7 shows the output voltage fluctuation due to input voltage change between 6.0 V and
10 V in square wave. Table 19 shows the parameter dependency when input voltage fluctuates. For reference,
Figure 8 describes the measurement circuit.
Table 29 Parameter dependency due to input voltage fluctuation
Parameter
Method to decrease
overshoot
Method to decrease
undershoot
Output current
Load capacitance C
L
Input voltage fluctuation
Temperature
I
OUT
Decrease
Increase
Decrease
Decrease
Increase
Decrease
V
IN
*
Ta
High temperature
*
V
IN
: High voltage value - low voltage value
For reference, the next page describes the results of measuring the ringing amounts at the V
OUT
pin using the
output current (I
OUT
), load capacitance (C
L
), input voltage fluctuation width ( V
IN
), and temperature as parameters.
V
REF
V
OUT
x (±0.1) mV/ C typ.
Figure 7 Output voltage fluctuation due to input voltage fluctuation
Input voltage
6.0
10 V
Undershoot
Overshoot
Output voltage
Figure 8 Measuring circuit
Fast amplifier
P.G.
S-812XXSG
Oscilloscope
C
L
V
OUT
V
SS
V
IN
+
-
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| S-81230 | 3.0V±2.4% High-Precision Three-Terminal Positive Voltage Regulator(輸出電壓3.0V±2.4%，高精度三端（輸入端，輸出端，接地端）正電壓穩(wěn)壓器) |
| S-81233 | 3.3V±2.4% High-Precision Three-Terminal Positive Voltage Regulator(輸出電壓3.3V±2.4%，高精度三端（輸入端，輸出端，接地端）正電壓穩(wěn)壓器) |
| S-81235 | 3.5V±2.4% High-Precision Three-Terminal Positive Voltage Regulator(輸出電壓3.5V±2.4%，高精度三端（輸入端，輸出端，接地端）正電壓穩(wěn)壓器) |
| S-81236 | 3.6V±2.4% High-Precision Three-Terminal Positive Voltage Regulator(輸出電壓3.6V±2.4%，高精度三端（輸入端，輸出端，接地端）正電壓穩(wěn)壓器) |
| S-81237 | 3.7V±2.4% High-Precision Three-Terminal Positive Voltage Regulator(輸出電壓3.7V±2.4%，高精度三端（輸入端，輸出端，接地端）正電壓穩(wěn)壓器) |
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