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參數(shù)資料
| 型號： | CYT6119FKN |
| 廠商： | Electronic Theatre Controls, Inc. |
| 英文描述： | 400mA Super LDO Linear Regulator |
| 中文描述： | 400mA的超級LDO線性穩(wěn)壓器 |
| 文件頁數(shù)： | 4/6頁 |
| 文件大小： | 174K |
| 代理商： | CYT6119FKN |
All contents are subject to change without prior notice.
4
400mA Super LDO Linear
Regulator
CYT6
119
Application Hints
Like any Low dropout regulator,
CYT6
119 requires
external capacitors to ensure stability. The external
capacitors must be carefully selected to ensure the
performances.
Input Capacitor:
An Input Capacitor of at least 10uF is required.
Ceramic or Tantalum can be used. The value can
be increased without upper limit.
Output Capacitor:
An Output Capacitor is required for look stability. It
must be located no more than 1cm away from the
V
OUT
pin, and connected directly between V
OUT
and
GND pins. The minimum value is 10uF but once
again its value can be increased without limit.
Thermal Consideration
It is important that the thermal limit of the package
should not be exceeded. The
CYT6
119 has built-in
thermal protection. When the thermal limit is
exceeded, the IC will enter protection, and the V
OUT
will be reset to zero. The power dissipation for a
given application can be calculated as follows:
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 ambient temperature, and
θ
JA
is
around 180°C/W for
CYT6
119.
CYT6
119 is designed
to enter thermal protection at 150°C. For example, if
T
A
is 25°C then the max P
D
is limited to about 0.7W.
In other words, if I
OUT(MAX)
= 400mA, then [V
IN
–
V
OUT
] can not exceed 1.75V.
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