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參數(shù)資料
| 型號： | AMS2951ACS-33 |
| 廠商： | Advanced Monolithic Systems, Inc. |
| 元件分類： | 基準(zhǔn)電壓源/電流源 |
| 英文描述： | 150mA LOW DROPOUT VOLTAGE REGULATOR |
| 中文描述： | 150mA的低壓差穩(wěn)壓器 |
| 文件頁數(shù)： | 4/14頁 |
| 文件大小： | 144K |
| 代理商： | AMS2951ACS-33 |
Advanced Monolithic Systems, Inc.
6680B Sierra Lane, Dublin, CA 94568 Phone (925) 556-9090 Fax (925) 556-9140
AMS2950/AMS2951
Note 8:
The junction-to-ambient thermal resistance are as follows:180
°
C/W and 160
°
C/W for the TO-92 (N) package with 0.40 inch and 0.25 inch leads to the
printed circuit board (PCB) respectively, 105
°
C/W for the molded plastic DIP (P) and 160
°
C/W for the molded plastic SO-8 (S). The above thermal resistances
for the N, S and P packages apply when the package is soldered directly to the PCB.
Note 9:
May exceed input supply voltage.
Note 10:
When used in dual-supply systems where the output terminal sees loads returned to a negative supply, the output voltage should be diode-clamped to
ground.
Note 11:
V
shutdown
≥
2V, V
in
≤
30V, V
out
=0, Feedback pin tied to 5V
TAP
.
Note 12:
Output or reference voltage temperature coefficients defined as the worst case voltage change divided by the total temperature range.
Note 13:
Thermal regulation is defined as the change in output voltage at a time T after a change in power dissipation is applied, excluding load or line
regulation effects. Specifications are for a 50mA load pulse at V
IN
=30V (1.25W pulse) for T =10 ms.
Note 14:
Regulation is measured at constant junction temperature, using pulse testing with a low duty cycle. Changes in output voltage due to heating effects
are covered under the specification for thermal regulation.
Note 15
: Line regulation for the AMS2951 is tested at 150
°
C for I
L
= 1 mA. For I
L
= 100
μ
A and T
J
= 125
°
C, line regulation is guaranteed by design to 0.2%.
See typical performance characteristics for line regulation versus temperature and load current.
Note 16:
All AMS2950 devices have the nominal output voltage coded as the last two digits of the part number. In the AMS2951 products, the 2.5V 3.0V and
3.3V versions are designated by the last two digits, but the 5V version is denoted with no code of the part number.
BLOCK DIAGRAM AND TYPICAL APPLICATIONS
AMS2950-XX
AMS2951-XX
INPUT
OUTPUT
GROUND
ERROR
AMPLIFIER
1.23V
REFERENCE
UNREGULATED DC
V
OUT
I
L
150mA
SEE APPLICATION
HINTS
+
+
+
+
-
INPUT
OUTPUT
GROUND
ERROR
AMPLIFIER
1.23V
REFERENCE
UNREGULATED DC
V
OUT
I
L
≤
150mA
SEE APPLICATION
HINTS
+
+
+
+
-
F7
BACK
SHUT-
DOWN
SENSE
V
TAP
ERROR
TO CMOS
OR TTL
+
-
+
330k
4
5
6
2
1
8
3
FROM
CMOS
OR TTL
50mV
ERROR DETECTION COMPARATOR
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| AMS2951CP-33 | 制造商:ADMOS 制造商全稱:ADMOS 功能描述:150mA LOW DROPOUT VOLTAGE REGULATOR |
| AMS2951CP-X | 制造商:ADMOS 制造商全稱:ADMOS 功能描述:150mA LOW DROPOUT VOLTAGE REGULATOR |
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