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AIC1721DCX

更新时间：2024-09-18 02:30:20
品牌：AIC
描述：3-pin Low Dropout Linear Regulator

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AIC1721DCX 概述

3-pin Low Dropout Linear Regulator 3针低压差线性稳压器

AIC1721DCX 数据手册

通过下载AIC1721DCX数据手册来全面了解它。这个PDF文档包含了所有必要的细节，如产品概述、功能特性、引脚定义、引脚排列图等信息。

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AIC1721/1721D  
3-pin Low Dropout Linear Regulator  
ꢀ FEATURES  
ꢀ DESCRIPTION  
ꢀ Low Dropout Voltage of 130mV at 100mA Output  
Current (5V Output Version).  
The AIC1721/1721D is the enhanced CMOS  
version of the LP2950. The superior  
ꢀ Guaranteed 150mA/300mA Output Current.  
ꢀ Internal 1.3Ω P-MOSFET Draws no Base Current.  
ꢀ Low Ground Current at 55µA.  
ꢀ 1% Accuracy Output Voltage of 3.3V/5V.  
ꢀ Input Voltage Range up to 12V (5V Output  
Version).  
ꢀ Extremely Tight Load and Line Regulation.  
ꢀ Fast Transient Response.  
ꢀ Needs only 1µF for Stability.  
characteristics of the AIC1721/1721D include  
zero base current loss, very low dropout voltage,  
and 1% accuracy output voltage. Typica-l ground  
current remains approximately 55µA, from no  
load to maximum loading conditions. Dropout  
voltage at 100mA output current is significantly  
lower than its bipolar counterpart: 130mV for the  
AIC1721-5/1721D-5, and 180mV for the  
AIC1721/ 1721D. Output current limiting and  
thermal limiting are built in to provide maximal  
protection to the AIC1721/ 1721D against fault  
conditions.  
ꢀ Current and Thermal Limiting.  
ꢀ APPLICATIONS  
ꢀ Voltage Regulator for LAN Cards.  
ꢀ Wireless Communication Systems.  
ꢀ Battery Powered Systems.  
While pin-to-pin compatible with the LP2950 and  
the industry industry standard 78XX series of  
voltage regulators, the AIC1721/1721D comes in  
the popular3-pin SOT-89 or TO-92 packages.  
ꢀ TYPICAL APPLICATION CIRCUIT  
AIC1721/  
VOUT  
VIN  
AIC1721D  
VOUT  
VIN  
GND  
+
+
1 F  
µ
10 F  
µ
CIN  
COUT  
Negative Voltage Regulator  
Analog Integrations Corporation 4F, 9, Industry E. 9th Rd, Science Based Industrial Park, Hsinchu Taiwan, ROC  
DS-1721-01 TEL: 886-3-5772500 FAX: 886-3-5772510  
www.analog.com.tw  
1
AIC1721  
ꢀ ORDERING INFORMATION  
AIC1721X-XXX  
ORDER NUMBER  
PIN CONFIGURATION  
PACKAGING TYPE  
X: SOT-89  
AIC1721CX  
AIC1721-5CX  
AIC1721DCX  
AIC1721D-5CX  
(SOT-89)  
FRONT VIEW  
Z: TO-92  
1: VOUT  
2: GND  
3: VIN  
TEMPERATURE RANGE  
C: 0°C~+70°C  
1
2
3
OUTPUT VOLTAGE  
DEFAULT: 3.3V  
5: 5.0V  
AIC1721CZ  
AIC1721-5CZ  
AIC1721DCZ  
AIC1721D-5CZ  
(TO-92)  
TOP VIEW  
1: VOUT  
2: GND  
1
2
3
OUTPUT CURRENT  
DEFAULT: 150mA  
D: 300mA  
3: VIN  
ꢀ ABSOLUTE MAXIMUM RATINGS  
Input Supply Voltage .................................…………......……................................ -0.3~12V  
Operating Junction Temperature Range ..............….....……..….….............. -40°C~ 125°C  
Storage Temperature Range ..............................….………........................ -65°C~150°C  
Power Dissipation  
SOT-89 Package ..….…….…........... 0. 80W  
TO-92 Package .......…….…............ 0.78W  
ꢀ TEST CIRCUIT  
Refer to the TYPICAL APPLICATION CIRCUIT  
2
AIC1721  
ꢀ ELECTRICAL CHARACTERISTICS (Ta=25°C, CIN=1µF, COUT=10µF, unless  
otherwise specified.)  
PARAMETER  
TEST CONDITIONS  
MIN.  
TYP.  
MAX. UNIT  
Output Voltage  
No Load  
V
AIC1721/1721D-5  
VIN=5.5~12V  
VIN=3.6~12V  
4.950  
3.267  
5.0  
3.3  
50  
5.050  
AIC1721/1721D  
(Note 1)  
3.333  
Output Voltage  
Temperature  
Coefficiency  
150  
PPM/°C  
mV  
Line Regulation  
IL=1mA  
AIC1721/1721D-5  
AIC1721/1721D  
AIC1721-5  
VIN=5.5~12V  
VIN=3.6~12V  
3
3
10  
10  
15  
25  
15  
25  
Load Regulation  
(Note 2)  
VIN=7V, IL=0.1~150mA  
VIN=7V, IL=0.1~300mA  
VIN=5V, IL=0.1~150mA  
VIN=5V, IL=0.1~300mA  
VIN=7V, VOUT=0V  
VIN=5V, VOUT=0V  
VIN=7V, VOUT=0V  
VIN=5V, VOUT=0V  
IL=0.1mA  
7
mV  
AIC1721D-5  
AIC1721  
AIC1721D  
AIC1721-5  
AIC1721  
AIC1721D-5  
AIC1721D  
AIC1721/1721D  
AIC1721-5  
AIC1721  
AIC1721D-5  
AIC1721D  
7
7
7
Current Limit  
(Note 3)  
320  
320  
320  
320  
440  
440  
440  
440  
0.2  
200  
270  
400  
540  
mA  
mV  
Dropout Voltage  
(Note 4)  
10  
IL=150mA  
300  
370  
500  
640  
IL=150mA  
IL=300mA  
IL=300mA  
Ground Current  
IO=0.1mA~IMAX  
AIC1721/1721D-5  
AIC1721/1721D  
µA  
VIN=5.5~12V  
VIN=4~12V  
55  
55  
80  
80  
Note 1:  
Note 2:  
Note 3:  
Note 4:  
Guaranteed by design.  
Regulation is measured at constant junction temperature, using pulse testing with a low ON time.  
Current limit is measured by pulsing a short time.  
Dropout voltage is defined as the input to output differential at which the output voltage drops  
100mV below the value measured with a 1V differential.  
3
AIC1721  
ꢀ BLOCK DIAGRAM  
GND  
+
VREF  
+
-
-
VOUT  
VIN  
ꢀ TYPICAL PERFORMANCE CHARACTERISTICS  
Ground Current vs. Input Voltage  
Output Voltage vs. Temperature  
60  
102  
101  
50  
40  
30  
20  
10  
100  
99  
0
98  
0
2
4
6
8
10  
12  
-40  
0
50  
100  
125  
0
Input Voltage (V)  
Temperature (°C)  
Dropout Voltage vs Load Current  
VOUT=3.3V  
Ground Current vs. Temperature  
IL=300mA  
600  
60  
58  
500  
400  
56  
54  
52  
50  
300  
200  
IL=150mA  
VOUT=5V  
IL=0.1mA  
100  
0
300  
0
100  
150  
250  
200  
50  
75  
100  
125  
0
25  
50  
-50  
-25  
Temperature( C)  
°
Load Current (mA)  
4
AIC1721  
ꢀ TYPICAL PERFORMANCE CHARACTERISTICS (Continued)  
Short Circuit Current vs. Temperature  
Dropout Voltage vs Temperature  
IL=300mA  
500  
400  
300  
200  
600  
500  
400  
300  
200  
VOUT=5V  
AIC1721D  
IL=150mA  
AIC1721  
100  
0
IL=0.1mA  
-50  
-25  
0
25  
50  
75  
100  
125  
-50  
-25  
0
25  
50  
Temperature (°C) 75  
100  
125  
Temperature( C)  
°
Line Transient Response  
Load Transient Response  
100  
50  
100  
0
0
COUT=1 F  
µ
-50  
-100  
-200  
COUT=1µF  
IL=1mA  
V
OUT=5V  
VOUT=5V  
8
6
150  
0.1  
0
0.1  
0.2  
0.3  
0.4  
0.5  
0.6  
0.7  
0.8  
0.9  
1.0  
0
0.5  
1.0  
1.5  
2.0  
2.5  
3.0  
3.5  
4.0  
4.5  
5.0  
Time (mS)  
Time (mS)  
Load Transient Response  
COUT=10 F  
µ
20  
0
VOUT=5V  
-20  
-40  
-60  
150  
0.1  
0
0.5  
1.0  
1.5  
2.0  
3.0  
3.5  
4.0  
4.5  
5.0  
Time2(.5mS)  
5
AIC1721  
ꢀPHYSICAL DIMENSIONS  
ꢀ SOT-89 (unit: mm)  
A
D
D1  
SYMBOL  
MIN  
1.40  
0.36  
0.35  
4.40  
1.62  
2.29  
MAX  
1.60  
0.48  
0.44  
4.60  
1.83  
2.60  
A
B
C
D
D1  
E
C
H
E
L
e
e1  
H
1.50 (TYP.)  
3.00 (TYP.)  
B
e
e1  
3.94  
0.89  
4.25  
1.20  
L
ꢀ SOT89 Marking  
Part No.  
Marking  
AIC1714-30 AP30  
AIC1714-33 AP33  
AIC1714-50 AP50  
ꢀ TO-92 (unit: mm)  
SYMBOL  
MIN  
4.32  
MAX  
5.33  
E
L
A
A
C
D
E
C
0.38 (TYP.)  
e1  
4.40  
3.17  
5.20  
4.20  
D
e1  
L
1.27 (TYP.)  
12.7  
-
6

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