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參數(shù)資料
| 型號： | MIC2213-KNBML |
| 廠商： | MICREL INC |
| 元件分類： | 基準(zhǔn)電壓源/電流源 |
| 英文描述： | Sequenced Portable Power Management IC |
| 中文描述： | DUAL OUTPUT, FIXED POSITIVE LDO REGULATOR, DSO10 |
| 封裝： | 3 X 3 MM, MLF-10 |
| 文件頁數(shù)： | 10/11頁 |
| 文件大?。?/td> | 234K |
| 代理商： | MIC2213-KNBML |
MIC2213
Micrel
MIC2213
10
July 2003
Input Capacitor
Good bypassing is recommended from input to ground to
help improve AC performance. A 1
μ
F capacitor or greater
located close to the IC is recommended.
Bypass Capacitor
The internal reference voltage of the MIC2213 can be by-
passed with a capacitor to ground to reduce output noise and
increase power supply rejection (PSRR). A quick-start fea-
ture allows for quick turn-on of the output voltage regardless
of the size of the capacitor. The recommended nominal
bypass capacitor is 0.01
μ
F, but it can be increased without
limit.
Output Capacitor
Each regulator output requires a 1
μ
F ceramic output capaci-
tor for stability. The output capacitor value can be increased
to improve transient response, but performance has been
optimized for a 1
μ
F ceramic type output capacitor.
X7R/X5R dielectric-type ceramic capacitors are recom-
mended because of their temperature performance. X7R-
type capacitors change capacitance by 15% over their oper-
ating temperature range and are the most stable type of
ceramic capacitors. Z5U and Y5V dielectric capacitors change
value by as much as 50% and 60% respectively over their
operating temperature ranges. To use a ceramic chip capaci-
tor with Y5V dielectric, the value must be much higher than a
X7R ceramic capacitor to ensure the same minimum capaci-
tance over the equivalent operating temperature range.
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