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AMS2951ACP-25

更新时间： 2025-07-18 22:50:27
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ADMOS 稳压器
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14页 147K
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150mA LOW DROPOUT VOLTAGE REGULATOR

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AMS2951ACP-25 数据手册

 浏览型号AMS2951ACP-25的Datasheet PDF文件第1页浏览型号AMS2951ACP-25的Datasheet PDF文件第2页浏览型号AMS2951ACP-25的Datasheet PDF文件第4页浏览型号AMS2951ACP-25的Datasheet PDF文件第5页浏览型号AMS2951ACP-25的Datasheet PDF文件第6页浏览型号AMS2951ACP-25的Datasheet PDF文件第7页 
AMS2950/AMS2951  
ELECTRICAL CHARACTERISTICS (Note 2) (Continued)  
AMS2950AC  
AMS2951AC  
AMS2950C  
AMS2951C  
PARAMETER  
CONDITIONS  
Units  
(Note 2)  
Min.  
Typ.  
Max.  
Min.  
Typ.  
Max.  
80  
I
I
= 100m A  
Dropout Voltage  
50  
80  
50  
mV  
mV  
L
L
(Note 5)  
= 150 mA  
380  
450  
380  
450  
I
I
= 100 mA  
L
L
Ground Current  
75  
8
120  
12  
75  
8
120  
12  
mA  
= 150 mA  
mA  
Current Limit  
V
= 0  
160  
200  
0.2  
160  
200  
0.2  
mA  
out  
Thermal Regulation  
(Note 13)  
0.05  
0.05  
%/W  
C
C
C
= 1mF  
L
L
L
Output Noise,  
430  
160  
100  
430  
160  
100  
mV rms  
mV rms  
mV rms  
= 200 mF  
= 13.3 mF  
10Hz to 100KHz  
(Bypass = 0.01 mF pins 7 to  
1(AMS2951))  
8-Pin Versions only  
AMS2951AC  
AMS2951C  
Reference Voltage  
Reference Voltage  
1.22  
1.235  
1.25  
1.21  
1.235  
1.26  
V
V
Over Temperature (Note 7)  
1.19  
1.27  
1.185  
1.285  
Feedback Pin Bias Current  
40  
20  
60  
40  
60  
nA  
Reference Voltage Temperature  
Coefficient  
50  
ppm/°C  
( Note 12 )  
Feedback Pin Bias Current  
Temperature Coefficient  
Error Comparator  
0.1  
0.1  
nA/°C  
Output Leakage Current  
V
= 30V  
0.01  
150  
1
0.01  
150  
1
mA  
OH  
V
I
= 4.5V  
Output Low Voltage  
in  
250  
250  
mV  
= 400mA  
OL  
(Note 6)  
(Note 6)  
(Note 6)  
40  
60  
75  
15  
40  
60  
75  
15  
mV  
mV  
mV  
Upper Threshold Voltage  
Lower Threshold Voltage  
95  
95  
Hysteresis  
Shutdown Input  
Low (Regulator ON)  
High (Regulator OFF)  
1.3  
1.3  
V
V
0.7  
0.7  
Input logic Voltage  
2
2
Vs = 2.4V  
30  
50  
30  
50  
mA  
mA  
Shutdown Pin Input Current  
(Note 3)  
V = 30V  
s
450  
600  
450  
600  
Regulator Output Current in  
Shutdown (Note 3)  
(Note 11)  
3
10  
3
10  
mA  
Note 1: Absolute Maximum Ratings are limits beyond which damage to the device may occur. Operating Ratings are conditions under which operation of the  
device is guaranteed. Operating Ratings do not imply guaranteed performance limits. For guaranteed performance limits and associated test conditions, see the  
Electrical Characteristics tables.  
Note 2: Unless otherwise specified all limits guaranteed for VIN = ( VONOM +1)V, IL = 100 mA and CL = 1 mF for 5V versions and 2.2mF for 3V and 3.3V  
versions. Limits appearing in boldface type apply over the entire junction temperature range for operation. Limits appearing in normal type apply for TA = TJ =  
25°C Additional conditions for the 8-pin versions are FEEDBACK tied to VTAP, OUTPUT tied to SENSE and VSHUTDOWN £ 0.8V.  
Note 3: Guaranteed and 100% production tested.  
Note 4: Guaranteed but not 100% production tested. These limits are not used to calculate outgoing AQL levels.  
Note 5: Dropout voltage is defined as the input to output differential at which the output voltage drops 100 mV below its nominal value measured at 1V  
differential. At very low values of programmed output voltage, the minimum input supply voltage of 2V ( 2.3V over temperature) must be taken into account.  
Note 6: Comparator thresholds are expressed in terms of a voltage differential at the feedback terminal below the nominal reference voltage measured at  
VIN = ( VONOM +1)V. To express these thresholds in terms of output voltage change, multiply by the error amplifier gain = Vout/Vref = (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 95 mV x 5V/1.235 = 384 mV. Thresholds  
remain constant as a percent of Vout as Vout is varied, with the dropout warning occurring at typically 5% below nominal, 7.5% guaranteed.  
Note 7: Vref £Vout £ (Vin - 1V), 2.3 £Vin£30V, 100mA£IL£ 150 mA, TJ £ TJMAX  
.
Advanced Monolithic Systems, Inc. 6680B Sierra Lane, Dublin, CA 94568 Phone (925) 556-9090 Fax (925) 556-9140  
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