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參數(shù)資料
| 型號： | LM2950 |
| 廠商： | Electronic Theatre Controls, Inc. |
| 元件分類： | 基準(zhǔn)電壓源/電流源 |
| 英文描述： | 0.1A LOW DROPOUT VOLTAGE REGULATORS |
| 中文描述： | 0.1A低壓差調(diào)節(jié)器 |
| 文件頁數(shù)： | 3/3頁 |
| 文件大小： | 99K |
| 代理商： | LM2950 |
0.1A LOW DROPOUT VOLTAGE REGULATORS
LM2950
Note 4 : Dropout voltage is defined as the input to output differential at which the output voltage drops 100
below its nominal value measured at 1V differential. At very low values of programmed output voltage,
the minimum input supply voltage(2.3V over temperature) must be taken into account.
Note 5 : V
REF
≤V
OUT
≤(V
IN
-1V), 2.3V≤V
IN
≤30V, 100≤I
L
≤100, T
J
≤T
JMAX
Note 6 : Comparator thresholds are expressed in terms of a voltage differential at the feedback terminal below the
nominal reference voltage measured at V
0
+1V input. To express these thresholds in terms of output voltage changed,
multiply by the error amplifier gain=V
OUT
/V
REF
=(R1+R2)/R2. For example, at a programmed output voltage of 5V, the
error output is guaranteed to go low when the output drops by 95x5V/1.235V=384. Thresholds remain constant
as a percent V
OUT
as V
OUT
is varied, with the dropout warning occurring at typically 5% below nominal, 7.5%
guaranteed.
Note 7 : V
SHUTDOWN
≥2V, V
IN
≤30V, V
OUT
=0, Feed-back pin tied to -XX V Tap.
HTC
3
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