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参数资料
| 型号： | SI-8050JD-TL |
| 元件分类： | 稳压器 |
| 英文描述： | 1.5 A SWITCHING REGULATOR, 125 kHz SWITCHING FREQ-MAX, PSSO5 |
| 封装： | LEAD FREE, PLASTIC, TO-263, 5 PIN |
| 文件页数： | 7/10页 |
| 文件大小： | 538K |
| 代理商： | SI-8050JD-TL |
SI-8050JD
Step-Down
to 5.0 V, 1.5 A,
DC/DC Converter
115 Northeast Cutoff, Box 15036
Worcester, Massachusetts 01615-0036
Switching
Regulators
6
Layout Guideline
APPLICATIONS INFORMATION (cont.)
Thermal Protection. Circuitry turns off the switching
transistor when the junction temperature rises above 150°C.
It is intended only to protect the device from failures due to
excessive junction temperatures and should not imply that
output short circuits or continuous overloads are permitted.
Heat Radiation and Reliability. The reliability of the
IC is directly related to the junction temperature (T
J) in its
operation. Accordingly, careful consideration should be
given to heat dissipation.
The inner frame on which the integrated circuit is mounted
is connected to the GND terminal (pin 3). Therefore, it is
very effective for heat radiation to enlarge the copper area
that is connected to the GND terminal. The graph illus-
trates the effect of the copper area on the junction-to-
ambient thermal resistance (RθJA).
The junction temperature (T
J) can be determined from
either of the following equations:
T
J = (PDR
θJA) + TA
or
T
J = (PDR
θJC) + TC
where P
D = VIII – VOIO – VFIO(1 – [VO/VI])
or the adjacent graph,
V
F = the Schottky diode forward voltage, and
RθJC =3°C/W.
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相关代理商/技术参数 |
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| SI-8050JF | 制造商:Sanken Electric Co Ltd 功能描述:IC REG BUCK 5V 1.5A TO220F-5 |
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| SI-8050S LF1116 | 制造商:Sanken Electric Co Ltd 功能描述:Tube |
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