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參數(shù)資料
| 型號(hào)： | SE5166DHG |
| 廠商： | Electronic Theatre Controls, Inc. |
| 元件分類： | 基準(zhǔn)電壓源/電流源 |
| 英文描述： | 150mA CMOS LDO Regulator(Preliminary) |
| 中文描述： | 150mA的LDO穩(wěn)壓器的CMOS（初步） |
| 文件頁數(shù)： | 5/7頁 |
| 文件大?。?/td> | 153K |
| 代理商： | SE5166DHG |
Preliminary and all contents are subject to change without prior notice.
Seaward Electronics, Inc., 2004. www.seawardinc.com Page 5
ELECTRONICS
SEAWARD
150mA CMOS LDO
Regulator
(Preliminary)
SE5166
Application Hints
Like any low dropout regulator, SE5166 requires
external capacitors to ensure stability. The
external capacitors must be carefully selected to
ensure performance.
Thermal Considerations
It is important that the thermal limit of the package is
not exceeded. The SE5166 has built-in thermal
protection. When the thermal limit is exceeded,
the IC will enter protection, and V
OUT
will be pulled
to ground. The power dissipation for a given
application can be calculated as following:
The power dissipation (P
D
) is
P
D
= I
OUT
* [V
IN
– V
OUT
]
The thermal limit of the package is then limited to
P
D(MAX)
= [T
J
– T
A
]/
Θ
JA
where T
J
is the junction
temperature, T
A
is the ambient temperature, and
Θ
JA
is around 250°C/W for SE5166. SE5166 is
designed to enter thermal protection at 150°C. For
example, if T
A
is 25°C then the maximum P
D
is
limited to about 0.5W. In other words, if I
OUT(MAX)
=
150mA, then [V
IN
– V
OUT
] cannot exceed 3.33V.
Input Capacitor
An input capacitor of at least 2.2μF is required.
Ceramic or Tantalum can be used. The value can
be increase without upper limit.
Output Capacitor
An output capacitor is required for stability. It must
be placed no more than 1 cm away from the V
OUT
pin, and connected directly between V
OUT
and GND
pins. The minimum value is 2.2μF but may be
increase without limit.
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| SE5166DHN | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:150mA CMOS LDO Regulator(Preliminary) |
| SE5166DLG | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:150mA CMOS LDO Regulator(Preliminary) |
| SE5166DLN | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:150mA CMOS LDO Regulator(Preliminary) |
| SE5166DPG | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:150mA CMOS LDO Regulator(Preliminary) |
| SE5166DPN | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:150mA CMOS LDO Regulator(Preliminary) |
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