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AS7805AD-E1 [BCDSEMI]

1A 3-TERMINAL POSITIVE VOLTAGE REGULATOR; 1A 3端正电压稳压器
AS7805AD-E1
型号： AS7805AD-E1
厂家： BCD SEMICONDUCTOR MANUFACTURING LIMITED    BCD SEMICONDUCTOR MANUFACTURING LIMITED
描述：

1A 3-TERMINAL POSITIVE VOLTAGE REGULATOR
1A 3端正电压稳压器

稳压器
文件： 总13页 (文件大小：168K)
中文：  中文翻译
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Preliminary Datasheet  
1A 3-TERMINAL POSITIVE VOLTAGE REGULATOR  
AS7805A  
General Description  
Features  
·
Output Current up to 1A  
Fixed Output Voltage of 5V  
Output Voltage Accuracy of ±4% over the Full  
Temperature Range  
The AS7805A is a three terminal positive regulator  
designed for a wide variety of applications including  
local, on-card regulation.  
·
·
The AS7805A is complete with internal current limit-  
ing, thermal shutdown protection, and safe-area com-  
pensation which make it virtually immune from output  
overload. If adequate heat sinking is provided, this IC  
can deliver output current up to 1A.  
·
·
·
·
·
Internal Short Circuit Current Limiting  
Internal Thermal Overload Protection  
Output Transistor Safe-area Protection  
Low Load Regulation  
Stable Performance in High Temperature  
The AS7805A is available in TO-220-3 and TO-252-2  
(1) packages.  
Applications  
·
·
·
·
High Efficiency Linear Regulator  
Post Regulation for Switching Supply  
Microprocessor Power Supply  
Mother Board  
TO-220-3  
TO-252-2 (1)  
Figure 1. Package Types of AS7805A  
Mar. 2007 Rev. 1. 1  
BCD Semiconductor Manufacturing Limited  
1
Preliminary Datasheet  
1A 3-TERMINAL POSITIVE VOLTAGE REGULATOR  
AS7805A  
Pin Configuration  
T Package  
(TO-220-3)  
D Package  
(TO-252-2 (1) )  
OUTPUT  
GND  
3
2
1
OUTPUT  
GND  
3
2
1
INPUT  
INPUT  
Figure 2. Pin Configuration of AS7805A (Top View)  
Pin Description  
Pin Number  
Pin Name  
INPUT  
GND  
Function  
1
2
3
Voltage Input  
Ground  
OUTPUT  
Voltage Output  
Mar. 2007 Rev. 1. 1  
BCD Semiconductor Manufacturing Limited  
2
Preliminary Datasheet  
1A 3-TERMINAL POSITIVE VOLTAGE REGULATOR  
AS7805A  
Functional Block Diagram  
1
INPUT  
R9  
D1  
Zener  
Q9  
Q14  
R16  
Q21  
Q24  
R20  
C1  
R21  
R1  
Q18  
R12  
R17  
R18  
R23  
3
Q6  
OUTPUT  
Q3  
R2  
2
Q10  
Q11  
Q22  
R3  
R7  
Q7  
Q8  
Q1  
Q4  
Q16  
R4  
R5  
R14  
R15  
R11  
R6  
Q23  
Q13  
Q15  
Q2  
Q5  
R19  
C2  
Q19  
Q17  
Q20  
Q12  
R2  
R13  
R8  
R10  
2
GND  
Figure 3. Functional Block Diagram of AS7805A  
Mar. 2007 Rev. 1. 1  
BCD Semiconductor Manufacturing Limited  
3
Preliminary Datasheet  
1A 3-TERMINAL POSITIVE VOLTAGE REGULATOR  
AS7805A  
Ordering Information  
-
AS7805A  
E1: Lead Free  
Circuit Type  
TR: Tape and Reel  
Blank: Tube  
Package  
T: TO-220-3  
D: TO-252-2 (1)  
Package  
Temperature Range  
Part Number  
Marking ID  
Packing Type  
Tube  
-40 to 125oC  
TO-220-3  
AS7805AT-E1  
AS7805AT-E1  
AS7805AD-E1  
AS7805ADTR-E1  
AS7805AD-E1  
AS7805AD-E1  
Tube  
-40 to 125oC  
TO-252-2 (1)  
Tape & Reel  
BCD Semiconductor's Pb-free products, as designated with "E1" suffix in the part number, are RoHS compliant.  
Mar. 2007 Rev. 1. 1  
BCD Semiconductor Manufacturing Limited  
4
Preliminary Datasheet  
1A 3-TERMINAL POSITIVE VOLTAGE REGULATOR  
AS7805A  
Absolute Maximum Ratings (Note 1)  
Parameter  
Symbol  
VIN  
Value  
Unit  
Input Voltage  
36  
260  
V
oC  
W
TLEAD  
PD  
Lead Temperature (Soldering, 10sec)  
Power Dissipation  
Internally Limited  
150  
oC  
oC  
TJ  
Operating Junction Temperature  
Storage Temperature Range  
TSTG  
-65 to 150  
TO-220-3  
TO-252-2 (1)  
60  
oC/W  
θJA  
Thermal Resistance  
100  
ESD (Human Body Model)  
ESD (Machine Model)  
ESD  
ESD  
6000  
500  
V
V
Note 1: Stresses greater than those listed under "Absolute Maximum Ratings" may cause permanent damage to the  
device. These are stress ratings only, and functional operation of the device at these or any other conditions  
beyond those indicated under "Recommended Operating Conditions" is not implied. Exposure to "Absolute Max-  
imum Ratings" for extended periods may affect device reliability.  
Recommended Operating Conditions  
Parameter  
Symbol  
VIN  
Min  
Max  
25  
Unit  
V
Input Voltage  
oC  
TJ  
Operating Junction Temperature Range  
-40  
125  
Mar. 2007 Rev. 1. 1  
BCD Semiconductor Manufacturing Limited  
5
Preliminary Datasheet  
1A 3-TERMINAL POSITIVE VOLTAGE REGULATOR  
AS7805A  
Electrical Characteristics  
VIN=10V, IOUT=1A, TJ=-40 to 125oC, unless otherwise specified.  
Parameter  
Symbol  
Conditions  
Min Typ Max Unit  
TJ=25oC  
4.9  
4.8  
5
5.1  
5.2  
VOUT  
Output Voltage  
V
IOUT=5mA to 1A, VIN=7.5V to 20V,  
PD≤15W  
VIN=7.5V to 20V,  
25  
15  
50  
40  
mV  
mV  
IOUT=500mA, TJ=25oC  
VRLINE  
Line Regulation  
VIN=7.5V to 20V,  
IOUT=500mA, TJ=75oC  
VIN=10V, IOUT=5mA to 1A, TJ=25oC  
VRLOAD  
IQ  
Load Regulation  
Quiescent Current  
20  
3.2  
0.3  
0.08  
70  
50  
6
mV  
mA  
VIN=10V, IOUT=0  
VIN=8V to 25V, IOUT=500mA, TJ=25oC  
IOUT=5mA to 1A, TJ=25oC  
0.8  
0.5  
∆IQ  
Quiescent Current Change  
mA  
VIN=8V to 18V, f=120Hz, IOUT=500mA  
Ripple Rejection  
PSRR  
dB  
V
∆VOUT=1%, IOUT=1A, TJ=25oC  
f=10Hz to 100kHz, TA=25oC  
f=1kHz  
VDROP  
Dropout Voltage  
2
NO  
µV/VO  
Output Noise Voltage  
Output Resistance  
Short Circuit Current  
Peak Output Current  
10  
RO  
ISC  
10  
mΩ  
A
VIN=35V, TA=25oC  
VIN=10V, TJ=25oC  
0.05  
2.2  
0.4  
80  
IPK  
A
mV/oC  
ppm/oC  
∆VOUT/∆T  
(∆VOUT/VOUT)/∆T  
Output Voltage  
Temperature Coefficient  
Mar. 2007 Rev. 1. 1  
BCD Semiconductor Manufacturing Limited  
6
Preliminary Datasheet  
1A 3-TERMINAL POSITIVE VOLTAGE REGULATOR  
AS7805A  
Typical Performance Characteristics  
5.050  
2.5  
VIN=10V  
IOUT=10mA  
IOUT=1A  
TJ=-40OC  
5.025  
TJ=25OC  
TJ=125OC  
2.0  
1.5  
1.0  
0.5  
0.0  
5.000  
4.975  
4.950  
4.925  
4.900  
4.875  
4.850  
-40  
-20  
0
20  
40  
60  
80  
100  
120  
3
6
9
12  
15  
18  
21  
24  
Junction Temperature (OC)  
VIN-VOUT (V)  
Figure 5. Output Voltage vs. Junction Temperature  
Figure 4. Peak Output Current vs. Input/Output  
Differential Voltage  
5.050  
5.025  
5.000  
4.975  
4.950  
4.925  
5.050  
5.025  
5.000  
4.975  
4.950  
4.925  
4.900  
4.875  
4.850  
VIN=10V, TJ=25OC  
IOUT=500mA, TJ=25OC  
IOUT=500mA, TJ=75OC  
IOUT=1A, TJ=25OC  
4.900  
4.875  
4.850  
8
10  
12  
14  
16  
18  
20  
22  
24  
0
200  
400  
600  
800  
1000  
1200  
1400  
Input Voltage (V)  
Output Current (mA)  
Figure 6. Output Voltage vs. Output Current  
Figure 7. Output Voltage vs. Input Voltage  
Mar. 2007 Rev. 1. 1  
BCD Semiconductor Manufacturing Limited  
7
Preliminary Datasheet  
1A 3-TERMINAL POSITIVE VOLTAGE REGULATOR  
AS7805A  
Typical Performance Characteristics (Continued)  
100  
6
VIN=10V  
5
80  
IOUT=0  
4
3
2
1
0
60  
40  
20  
0
10  
100  
1k  
10k  
100k  
1M  
-40  
-20  
0
20  
40  
60  
80  
100  
120  
Junction Temperature (OC)  
Frequency (Hz)  
Figure 9. Ripple Rejection vs. Frequency  
Figure 8. Quiescent Current vs. Junction Temperature  
30  
25  
20  
15  
10  
5
2.5  
2.0  
1.5  
Package: TO-220-3  
Heatsink: 60*43mm2  
1.0  
IOUT=100mA  
IOUT=500mA  
IOUT=1A  
0.5  
0
-40  
0.0  
-40  
-20  
0
20  
40  
60  
80  
100  
120  
-20  
0
20  
40  
60  
80  
100  
120  
Junction Temperature (OC)  
Junction Temperature (OC)  
Figure 11. Power Dissipation vs. Junction Temperature  
Figure 10. Dropout Voltage vs. Junction Temperature  
Mar. 2007 Rev. 1. 1  
BCD Semiconductor Manufacturing Limited  
8
Preliminary Datasheet  
1A 3-TERMINAL POSITIVE VOLTAGE REGULATOR  
AS7805A  
Typical Performance Characteristics (Continued)  
2
25  
AS7805A  
1
0
AS7805A  
20  
15  
10  
0.005A  
-1  
100  
0
0
-50  
-100  
-150  
-100  
-200  
Time (100µs/Div)  
Time (40µs/Div)  
Figure 12. Line Transient  
Figure 13. Load Transient  
(Conditions: IOUT=500mA, COUT=0.1µF)  
(Conditions: VIN=10V, CIN=0.33µF, COUT=0.1µF)  
Mar. 2007 Rev. 1. 1  
BCD Semiconductor Manufacturing Limited  
9
Preliminary Datasheet  
1A 3-TERMINAL POSITIVE VOLTAGE REGULATOR  
AS7805A  
Typical Application  
AS7805A  
VIN  
VOUT  
INPUT  
OUTPUT  
GND  
0.33µF  
0.1µF  
Figure 14. Typical Application of AS7805A  
Mar. 2007 Rev. 1. 1  
BCD Semiconductor Manufacturing Limited  
10  
Preliminary Datasheet  
1A 3-TERMINAL POSITIVE VOLTAGE REGULATOR  
AS7805A  
Mechanical Dimensions  
TO-220-3  
Unit: mm(inch)  
9.660(0.380)  
2.580(0.102)  
3.380(0.133)  
10.660(0.420)  
φ3.560(0.140)  
4.060(0.160)  
0.550(0.022)  
1.350(0.053)  
0.200(0.008)  
φ1.500(0.059)  
3.560(0.140)  
4.820(0.190)  
2.080(0.082)  
2.880(0.113)  
7°  
0.381(0.015)  
1.160(0.046)  
1.760(0.069)  
60°  
0.813(0.032)  
8.763(0.345)  
0.381(0.015)  
2.540(0.100)  
0.356(0.014)  
0.406(0.016)  
2.540(0.100)  
Mar. 2007 Rev. 1. 1  
BCD Semiconductor Manufacturing Limited  
11  
Preliminary Datasheet  
1A 3-TERMINAL POSITIVE VOLTAGE REGULATOR  
AS7805A  
Mechanical Dimensions (Continued)  
TO-252-2(1)  
Unit: mm(inch)  
6.350(0.250)  
6.650(0.262)  
2.200(0.087)  
2.400(0.094)  
4.300(0.169)  
5.400(0.212)  
5.200(0.205)  
5.400(0.213)  
0.430(0.017)  
0.580(0.023)  
8°  
0.000(0.000)  
0.127(0.005)  
5°  
5°  
0.700(0.028)  
0.900(0.035)  
0.500(0.020)  
0.700(0.028)  
3°  
4°  
2.300TYP  
0.430(0.017)  
0.580(0.023)  
4.500(0.177)  
4.700(0.165)  
Mar. 2007 Rev. 1. 1  
BCD Semiconductor Manufacturing Limited  
12  
http://www.bcdsemi.com  
IMPORTANT NOTICE  
BCD Semiconductor Manufacturing Limited reserves the right to make changes without further notice to any products or specifi-  
cations herein. BCD Semiconductor Manufacturing Limited does not assume any responsibility for use of any its products for any  
particular purpose, nor does BCD Semiconductor Manufacturing Limited assume any liability arising out of the application or use  
of any its products or circuits. BCD Semiconductor Manufacturing Limited does not convey any license under its patent rights or  
other rights nor the rights of others.  
MAIN SITE  
BCD Semiconductor Manufacturing Limited  
BCD Semiconductor Manufacturing Limited  
- Wafer Fab  
- IC Design Group  
Shanghai SIM-BCD Semiconductor Manufacturing Limited  
800, Yi Shan Road, Shanghai 200233, China  
Tel: +86-21-6485 1491, Fax: +86-21-5450 0008  
Advanced Analog Circuits (Shanghai) Corporation  
8F, Zone B, 900, Yi Shan Road, Shanghai 200233, China  
Tel: +86-21-6495 9539, Fax: +86-21-6485 9673  
REGIONAL SALES OFFICE  
Shenzhen Office  
Taiwan Office  
BCD Semiconductor (Taiwan) Company Limited  
4F, 298-1, Rui Guang Road, Nei-Hu District, Taipei, 30920 Huntwood Ave. Hayward,  
USA Office  
BCD Semiconductor Corporation  
Shanghai SIM-BCD Semiconductor Manufacturing Co., Ltd. Shenzhen Office  
Advanced Analog Circuits (Shanghai) Corporation Shenzhen Office  
Room E, 5F, Noble Center, No.1006, 3rd Fuzhong Road, Futian District, Shenzhen 518026, China Taiwan  
CA 94544, U.S.A  
Tel: +86-755-8826 7951  
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