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參數(shù)資料
| 型號： | S-8328B50MA-EXE-T2 |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | 0.3 A SWITCHING CONTROLLER, 115 kHz SWITCHING FREQ-MAX, PDSO3 |
| 封裝： | PLASTIC, SOT-23, 3 PIN |
| 文件頁數(shù)： | 18/65頁 |
| 文件大?。?/td> | 759K |
| 代理商： | S-8328B50MA-EXE-T2 |
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SMALL PACKAGE PWM/PFM CONTROL STEP-UP SWITCHING REGULATOR
Rev. 7.2-10
S-8324/8328 Series
Seiko Instruments Inc.
25
(7) S-8328JXXMC
R1
R2
PWM
control
circuit
VREF
+
-
SD
VOUT
VSS
-
+
COUT
VIN
-
+
CIN
EXT
Soft start circuit
Note:
The power supply for
IC chip is supplied
from VDD pin.
L
VDD
(8) S-8328HXXMC
VREF
+
-
VSS
-
+
COUT
VIN
-
+
CIN
EXT
Note:
The power supply for
IC chip is supplied
from VOUT pin.
L
VOUT
ON / OFF
-
Soft start circuit
PWM
control
circuit
SD
VREF
Precautions
Mount external capacitors, a diode, and a coil as near as possible to the IC.
Ripple voltage and spike noise occur in switching regulators. Because they largely depend on the coil and the capacitor used,
check them using an actually mounted model.
The performance of this IC varies depending on the PCB patterns, peripheral circuits or external parts. Thoroughly test all
settings with your device. Also, try to use recommended external parts. If not, contact your local SII Sales Office.
Seiko Instruments shall not be responsible for any patent infringement by products including S-8324/8328 Series in connection
with the method of using S-8324/8328 Series in such products, the specification of such products, or the country of destination
thereof.
Make sure dissipation of the switching transistor (especially at a high temperatures) does not exceed the allowable power
dissipation of the package.
Figure 17
Figure 18
Figure 19 Power dissipation of the package (before mounting)
Amb. Temperature Ta (
°C)
Power
dissipation
PD
(mW)
600
400
200
0
050
100
150
SOT-23-5, SOT-23-3
SOT-89-3
DISCONTINUED
PRODUCT
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