NCP785AH33T1G [ONSEMI]

High PSRR Linear Regulator;
NCP785AH33T1G
型号: NCP785AH33T1G
厂家: ONSEMI    ONSEMI
描述:

High PSRR Linear Regulator

输出元件 调节器
文件: 总10页 (文件大小:109K)
中文:  中文翻译
下载:  下载PDF数据表文档文件
NCP785A  
Wide Input Voltage Range  
10ꢀmA Ultra-Low Iq, High  
PSRR Linear Regulator  
The NCP785A is a high−performance linear regulator, offering a  
very wide operating input voltage range of up to 450 V DC, with an  
output current of up to 10 mA.  
Ideal for high input voltage applications such as industrial and home  
metering, home appliances. The NCP785A family offers 5% initial  
accuracy, extremely high−power supply rejection ratio and ultra−low  
quiescent current. The NCP785A is optimized for high−voltage line  
and load transients, making this part ideal for harsh environment  
applications.  
The NCP785A is offered in fixed output voltage options 3.3 V,  
5.0 V, 12 V and 15 V.  
SOT−89 package offers good thermal performance and help to  
minimize the solution size.  
www.onsemi.com  
MARKING  
DIAGRAM  
Tab  
AYW  
XXXXXG  
G
SOT−89  
CASE 528AG  
1
3
2
(Top Views)  
(Tab is connected to Pin 2)  
A
Y
W
= Assembly Location  
= Year  
= Work Week  
Features  
Wide Input Voltage Range:  
XXXXX = Specific Device Code  
DC: Up to 450 V  
G
= Pb−Free Package  
AC: 85 V to 260 V (half−wave rectifier and 2.2 mF capacitor)  
(Note: Microdot may be in either location)  
10 mA Guaranteed Output Current  
Ultra Low Quiescent Current: Typ. 10 mA (V  
5 V)  
OUT  
ORDERING INFORMATION  
5% Accuracy Over Full Load, Line and Temperature Variations  
See detailed ordering and shipping information in the package  
dimensions section on page 9 of this data sheet.  
Ultra−high PSRR: 70 dB at 60 Hz, 90 dB at 100 kHz  
Stable with Ceramic Output Capacitor 22 mF MLCC  
Thermal Shutdown and Current Limit Protection  
Available in Thermally Enhanced SOT89−3 Package  
This is a Pb−Free Device  
Typical Applications  
Industrial Applications, Home Appliances  
Home Metering / Network Application  
Off−line Power Supplies  
V
OUT  
V
IN  
V
OUT  
V
IN  
85 VAC − 260 VAC  
25 V − 450 V  
3.3 V, 5 V, 12 V, 15 V  
3.3 V, 5 V, 12 V, 15 V  
V
IN  
V
OUT  
V
IN  
V
OUT  
C
IN  
C
OUT  
NCP785A  
NCP785A  
C
22 μF  
C
2.2 μF  
OUT  
IN  
2.2 μF/  
22 μF  
450 V  
GND  
GND  
Figure 1. Typical Applications  
© Semiconductor Components Industries, LLC, 2014  
1
Publication Order Number:  
December, 2014 − Rev. 2  
NCP785A/D  
NCP785A  
VIN  
Thermal  
Shutdown  
Current  
Limit  
+
V
REF  
+
1.25 V  
VOUT  
GND  
NCP785A  
Figure 2. Simplified Internal Block Diagram  
Table 1. PIN FUNCTION DESCRIPTION  
Pin No.  
(SOT−89)  
Pin Name  
VIN  
Description  
Supply Voltage Input. Connect 2.2 mF capacitor from VIN to GND.  
Ground connection.  
1
2, Tab  
3
GND  
VOUT  
Regulator Output. Connect 22 mF or larger MLCC capacitor from VOUT to GND.  
Table 2. ABSOLUTE MAXIMUM RATINGS  
Rating  
Symbol  
Value  
−0.3 to 700  
−0.3 to 18  
150  
Unit  
V
Input Voltage (Note 1)  
V
IN  
Output Voltage  
V
OUT  
V
Maximum Junction Temperature  
Storage Temperature  
T
°C  
°C  
V
J(MAX)  
T
STG  
−55 to 150  
2000  
ESD Capability, Human Body Model (All pins except HV pin no.1) (Note 2)  
ESD Capability, Machine Model (Note 2)  
ESD  
HBM  
ESD  
200  
V
MM  
Stresses exceeding those listed in the Maximum Ratings table may damage the device. If any of these limits are exceeded, device functionality  
should not be assumed, damage may occur and reliability may be affected.  
1. Peak 650 V max 1 ms non repeated for 1 s  
2. This device series incorporates ESD protection and is tested by the following methods:  
ESD Human Body Model tested per AEC−Q100−002 (EIA/JESD22−A114)  
ESD Machine Model tested per AEC−Q100−003 (EIA/JESD22−A115)  
Latch−up Current Maximum Rating tested per JEDEC standard: JESD78.  
Table 3. THERMAL CHARACTERISTICS  
Rating  
Symbol  
Value  
Unit  
Thermal Characteristics, SOT−89  
Thermal Resistance, Junction−to−Air  
R
79  
°C/W  
q
JA  
www.onsemi.com  
2
 
NCP785A  
Table 4. ELECTRICAL CHARACTERISTICS, VOUT = 3.3 V (−40°C T 85°C; V = 340 V; I  
= 100 mA, C = 2.2 mF,  
IN  
J
IN  
OUT  
C
= 22 mF, unless otherwise noted. Typical values are at T = +25°C.) (Note 3)  
OUT  
J
Parameter  
Test Conditions  
Symbol  
Min  
25  
Typ  
Max  
450  
Unit  
V
Operating Input Voltage DC  
Output Voltage Accuracy  
V
IN  
T = 25°C, Iout = 100 mA, 25 V Vin 450 V  
V
OUT  
V
OUT  
3.1515  
3.135  
3.3  
3.3  
3.4485  
3.465  
V
J
−40°C T 85°C, Iout = 100 mA,  
25 V Vin 450 V  
V
J
Line Regulation  
25 V Vin 450 V, Iout = 100 mA  
Reg  
Reg  
−0.5  
−1.0  
10.5  
0.2  
0.6  
+0.5  
+1.0  
%
%
LINE  
Load Regulation  
100 mA I  
10 mA, Vin = 35 V  
OUT  
LOAD  
Maximum Output Current (Note 4)  
Quiescent Current  
35 V Vin 450 V  
= 0, 25 V Vin 450 V  
I
mA  
mA  
mA  
OUT  
I
I
Q
7.5  
14  
15  
OUT  
Ground Current (Note 4)  
25 V Vin 450 V  
0 < I 10 mA  
I
GND  
OUT  
Power Supply Rejection Ratio  
Noise  
Vin = 340 V +1 Vpp  
modulation, Iout = 100 mA  
f = 1 kHz  
PSRR  
70  
240  
145  
10  
dB  
mVrms  
°C  
DC  
f = 100 Hz to 100 kHz  
V
NOISE  
Vin = 340 V , Iout = 100 mA  
DC  
Thermal Shutdown Temperature  
(Note 5)  
Temperature increasing from T = +25°C  
T
SD  
J
Thermal Shutdown Hysteresis  
(Note 5)  
Temperature falling from T  
T
SDH  
°C  
SD  
Table 5. ELECTRICAL CHARACTERISTICS, VOUT = 5.0 V (−40°C T 85°C; V = 340 V; I  
= 100 mA, C = 2.2 mF,  
IN  
J
IN  
OUT  
C
= 22 mF, unless otherwise noted. Typical values are at T = +25°C.) (Note 3)  
OUT  
J
Parameter  
Test Conditions  
Symbol  
Min  
50  
Typ  
Max  
450  
Unit  
V
Operating Input Voltage DC  
Output Voltage Accuracy  
V
IN  
T = 25°C, Iout = 100 mA, 50 V Vin 450 V  
V
OUT  
V
OUT  
4.775  
4.75  
5.0  
5.0  
5.225  
5.25  
V
J
−40°C T 85°C, Iout = 100 mA,  
50 V Vin 450 V  
V
J
Line Regulation  
50 V Vin 450 V, Iout = 100 mA  
Reg  
Reg  
−0.5  
−1.0  
10.5  
0.2  
+0.5  
+1.0  
%
%
LINE  
Load Regulation  
100 mA I  
10 mA, Vin = 55 V  
0.62  
OUT  
LOAD  
Maximum Output Current (Note 4)  
Quiescent Current  
55 V Vin 450 V  
= 0, 50 V Vin 450 V  
I
mA  
mA  
mA  
OUT  
I
I
Q
16  
21  
23  
OUT  
Ground Current (Note 4)  
50 V Vin 450 V  
0 < I 10 mA  
I
GND  
OUT  
Power Supply Rejection Ratio  
Noise  
Vin = 340 V +1 Vpp  
modulation, Iout = 100 mA  
f = 1 kHz  
PSRR  
70  
300  
145  
10  
dB  
mVrms  
°C  
DC  
f = 100 Hz to 100 kHz  
V
NOISE  
Vin = 340 V , Iout = 100 mA  
DC  
Thermal Shutdown Temperature  
(Note 5)  
Temperature increasing from T = +25°C  
T
SD  
J
Thermal Shutdown Hysteresis  
(Note 5)  
Temperature falling from T  
T
SDH  
°C  
SD  
Product parametric performance is indicated in the Electrical Characteristics for the listed test conditions, unless otherwise noted. Product  
performance may not be indicated by the Electrical Characteristics if operated under different conditions.  
3. Performance guaranteed over the indicated operating temperature range by design and/or characterization production tested at T = T =  
J
A
25°C. Low duty cycle pulse techniques are used during testing to maintain the junction temperature as close to ambient as possible.  
4. A proper heatsinking and/or low duty cycle pulse techniques are used to operate the device within the Safe Operating Area.  
5. Guaranteed by design  
www.onsemi.com  
3
 
NCP785A  
Table 6. ELECTRICAL CHARACTERISTICS, VOUT = 12 V (−40°C T 85°C; V = 340 V; I  
= 100 mA, C = 2.2 mF,  
IN  
J
IN  
OUT  
C
= 22 mF, unless otherwise noted. Typical values are at T = +25°C.) (Note 6)  
OUT  
J
Parameter  
Test Conditions  
Symbol  
Min  
Typ  
Max  
450  
Unit  
V
Operating Input Voltage DC  
Output Voltage Accuracy  
V
IN  
55  
T = 25°C, Iout = 100 mA, 55 V Vin 450 V  
V
11.460  
11.4  
12  
12  
12.540  
12.6  
V
J
OUT  
OUT  
−40°C T 85°C, Iout = 100 mA,  
55 V Vin 450 V  
V
V
J
Line Regulation  
55 V Vin 450 V, Iout = 100 mA  
Reg  
Reg  
−0.5  
−1.0  
10.5  
0.1  
+0.5  
+1.0  
%/V  
%
LINE  
Load Regulation  
100 mA I  
10 mA, Vin = 65 V  
0.66  
OUT  
LOAD  
Maximum Output Current (Note 7)  
Quiescent Current  
55 V Vin 450 V  
= 0, 55 V Vin 450 V  
I
mA  
mA  
OUT  
I
I
Q
17  
22  
25  
OUT  
Ground Current (Note 7)  
55 V Vin 450 V  
0 < I 10 mA  
I
mA  
GND  
OUT  
Power Supply Rejection Ratio  
Noise  
Vin = 340 V +1 Vpp  
modulation, Iout = 100 mA  
f = 1 kHz  
PSRR  
70  
420  
145  
10  
dB  
mVrms  
°C  
DC  
f = 100 Hz to 100 kHz  
V
NOISE  
Vin = 340 V , Iout = 100 mA  
DC  
Thermal Shutdown Temperature  
(Note 8)  
Temperature increasing from T = +25°C  
T
SD  
J
Thermal Shutdown Hysteresis  
(Note 8)  
Temperature falling from T  
T
SDH  
°C  
SD  
Table 7. ELECTRICAL CHARACTERISTICS, VOUT = 15 V (−40°C T 85°C; V = 340 V; I  
= 100 mA, C = 2.2 mF,  
IN  
J
IN  
OUT  
C
= 22 mF, unless otherwise noted. Typical values are at T = +25°C.) (Note 6)  
OUT  
J
Parameter  
Test Conditions  
Symbol  
Min  
Typ  
Max  
450  
Unit  
V
Operating Input Voltage DC  
Output Voltage Accuracy  
V
IN  
60  
T = 25°C, Iout = 100 mA, 60 V Vin 450 V  
V
14.325  
14.25  
15  
15  
15.675  
15.75  
V
J
OUT  
OUT  
−40°C T 85°C, Iout = 100 mA,  
60 V Vin 450 V  
V
V
J
Line Regulation  
60 V Vin 450 V, Iout = 100 mA  
Reg  
Reg  
−0.5  
−1.0  
10.5  
0.1  
+0.5  
+1.0  
%/V  
%
LINE  
Load Regulation  
100 mA I  
10 mA, Vin = 65 V  
0.66  
OUT  
LOAD  
Maximum Output Current (Note 7)  
Quiescent Current  
65 V Vin 450 V  
= 0, 60 V Vin 450 V  
I
mA  
mA  
OUT  
I
I
Q
18  
22  
25  
OUT  
Ground Current (Note 7)  
60 V Vin 450 V  
0 < I 10 mA  
I
mA  
GND  
OUT  
Power Supply Rejection Ratio  
Noise  
Vin = 340 V +1 Vpp  
modulation, Iout = 100 mA  
f = 1 kHz  
PSRR  
70  
500  
145  
10  
dB  
mVrms  
°C  
DC  
f = 100 Hz to 100 kHz  
V
NOISE  
Vin = 340 V , Iout = 100 mA  
DC  
Thermal Shutdown Temperature  
(Note 8)  
Temperature increasing from T = +25°C  
T
SD  
J
Thermal Shutdown Hysteresis  
(Note 8)  
Temperature falling from T  
T
SDH  
°C  
SD  
Product parametric performance is indicated in the Electrical Characteristics for the listed test conditions, unless otherwise noted. Product  
performance may not be indicated by the Electrical Characteristics if operated under different conditions.  
6. Performance guaranteed over the indicated operating temperature range by design and/or characterization production tested at T = T =  
J
A
25°C. Low duty cycle pulse techniques are used during testing to maintain the junction temperature as close to ambient as possible.  
7. A proper heatsinking and/or low duty cycle pulse techniques are used to operate the device within the Safe Operating Area.  
8. Guaranteed by design  
www.onsemi.com  
4
 
NCP785A  
TYPICAL CHARACTERISTICS  
3.310  
3.309  
3.308  
3.307  
3.306  
5.055  
V
IN  
= 350 V  
V
= 100 V − 450 V  
IN  
V
= 450 V  
= 250 V  
IN  
5.050  
5.045  
5.040  
V
IN  
V
IN  
= 50 V  
NCP785AH33T1G  
NCP785AH50T1G  
C
C
= 2.2 mF  
IN  
C
C
= 2.2 mF  
IN  
5.035  
5.030  
= 22 mF  
OUT  
3.305  
3.304  
= 22 mF  
OUT  
I
= 100 mA  
OUT  
I
= 100 mA  
OUT  
−40  
−20  
0
20  
40  
60  
80  
−40  
−20  
0
20  
40  
60  
80  
TEMPERATURE (°C)  
TEMPERATURE (°C)  
Figure 3. Output Voltage vs. Temperature  
Figure 4. Output Voltage vs. Temperature  
12.00  
11.99  
15.060  
15.055  
15.050  
15.045  
15.040  
15.035  
15.030  
15.025  
V
= 350 V  
V
IN  
= 250 V  
V
= 150 V  
IN  
IN  
V
IN  
= 150 V  
V
IN  
= 450 V  
V
IN  
= 250 V  
V
IN  
= 50 V  
V
IN  
= 60 V  
V
= 450 V  
11.98  
11.97  
IN  
V
= 350 V  
IN  
NCP785A150T1G  
NCP785AH12T1G  
C
C
I
= 2.2 mF  
= 22 mF  
= 100 mA  
C
C
I
= 2.2 mF  
= 22 mF  
= 100 mA  
IN  
11.96  
11.95  
IN  
OUT  
OUT  
15.020  
15.015  
OUT  
OUT  
−40  
−20  
0
20  
40  
60  
80  
−40  
−20  
0
20  
40  
60  
80  
TEMPERATURE (°C)  
TEMPERATURE (°C)  
Figure 5. Output Voltage vs. Temperature  
Figure 6. Output Voltage vs. Temperature  
3.3088  
3.3087  
3.3086  
3.3085  
3.3084  
5.0485  
5.0475  
5.0465  
5.0455  
5.0445  
NCP785AH50T1G  
NCP785AH33T1G  
C
C
= 2.2 mF  
= 22 mF  
IN  
C
C
I
= 2.2 mF  
= 22 mF  
= 100 mA  
OUT  
IN  
T = 25°C  
A
OUT  
3.3083  
3.3082  
5.0435  
5.0425  
I
= 100 mA  
OUT  
OUT  
0
50 100 150 200 250 300 350 400 450  
INPUT VOLTAGE (V)  
50 100  
150 200  
250 300  
350 400 450  
INPUT VOLTAGE (V)  
Figure 7. Output Voltage vs. Input Voltage  
Figure 8. Output Voltage vs. Input Voltage  
www.onsemi.com  
5
NCP785A  
TYPICAL CHARACTERISTICS  
11.985  
11.980  
15.050  
15.048  
15.046  
15.044  
11.975  
11.970  
NCP785AH150T1G  
NCP785AH120T1G  
C
C
= 2.2 mF  
IN  
C
C
= 2.2 mF  
= 22 mF  
IN  
= 22 mF  
OUT  
11.965  
11.960  
15.042  
15.040  
OUT  
T = 25°C  
A
T = 25°C  
A
I
= 100 mA  
OUT  
I
= 100 mA  
OUT  
50 100  
150 200  
250  
300  
350 400 450  
50 100 150 200  
250 300  
350 400 450  
INPUT VOLTAGE (V)  
INPUT VOLTAGE (V)  
Figure 9. Output Voltage vs. Input Voltage  
Figure 10. Output Voltage vs. Input Voltage  
8.0  
7.8  
7.6  
7.4  
7.2  
7.0  
6.8  
6.6  
6.4  
18  
17  
16  
15  
14  
T = 85°C  
A
T = 25°C  
A
T = 85°C  
A
T = 25°C  
A
T = −40°C  
A
T = −40°C  
A
NCP785AH33T1G  
C
C
I
= 2.2 mF  
= 22 mF  
= 0  
C
C
I
= 2.2 mF  
= 22 mF  
IN  
IN  
13  
12  
OUT  
OUT  
6.2  
6.0  
NCP785AH50T1G  
= 0  
OUT  
OUT  
0
50 100 150 200 250 300 350 400 450  
INPUT VOLTAGE (V)  
50 100  
150 200  
250 300  
350 400 450  
INPUT VOLTAGE (V)  
Figure 11. Quiescent Current vs. Input Voltage  
Figure 12. Quiescent Current vs. Input Voltage  
www.onsemi.com  
6
NCP785A  
TYPICAL CHARACTERISTICS  
20  
19  
18  
17  
16  
23  
22  
21  
T = 85°C  
A
T = 85°C  
A
T = 25°C  
A
T = 25°C  
A
20  
19  
18  
T = −40°C  
A
T = −40°C  
A
15  
C
C
I
= 2.2 mF  
= 22 mF  
C
C
I
= 2.2 mF  
= 22 mF  
IN  
IN  
17  
16  
14  
13  
OUT  
OUT  
NCP785AH120T1G  
NCP785AH150T1G  
= 0  
= 0  
OUT  
OUT  
50 100  
150  
200  
250  
300  
350 400 450  
0
50 100 150 200 250 300 350 400 450  
INPUT VOLTAGE (V)  
INPUT VOLTAGE (V)  
Figure 13. Quiescent Current vs. Input Voltage  
Figure 14. Quiescent Current vs. Input Voltage  
3.32  
3.31  
5.15  
5.10  
V
= 50 V  
V
= 150 V  
IN  
IN  
V
= 100 V  
IN  
V
= 200 V  
IN  
IN  
V
IN  
= 25 V  
3.30  
3.29  
3.28  
3.27  
V
= 250 V  
IN  
5.05  
V
= 350 V  
V
V
IN  
= 350 V  
NCP785AH33T1G  
= 50 V  
NCP785AH50T1G  
IN  
V
IN  
= 450 V  
5.00  
4.95  
V
= 450 V  
C
C
= 2.2 mF  
= 22 mF  
IN  
IN  
C
C
= 2.2 mF  
= 22 mF  
IN  
OUT  
3.26  
3.25  
OUT  
T = 25°C  
A
T = 25°C  
A
0
1
2
3
4
5
6
7
8
9
10  
0
1
2
3
4
5
6
7
8
9
10  
OUTPUT CURRENT (mA)  
OUTPUT CURRENT (mA)  
Figure 15. Output Voltage vs. Output Current  
Figure 16. Output Voltage vs. Output Current  
11.99  
11.98  
11.97  
11.96  
15.10  
15.05  
15.00  
14.95  
14.90  
V
= 100 V  
V
= 150 V  
V
= 100 V  
IN  
IN  
IN  
V
= 200 V  
IN  
V
IN  
= 60 V  
V
= 55 V  
IN  
11.95  
11.94  
11.93  
11.92  
11.91  
V
= 200 V  
= 300 V  
NCP785AH150T1G  
IN  
NCP785AH120T1G  
V
= 300 V  
IN  
V
IN  
= 450 V  
C
C
= 2.2 mF  
= 22 mF  
C
C
= 2.2 mF  
= 22 mF  
IN  
IN  
V
IN  
V
= 350 V  
IN  
14.85  
14.80  
OUT  
OUT  
V
= 450 V  
9
V
= 350 V  
11.90  
11.89  
IN  
IN  
T = 25°C  
A
T = 25°C  
A
0
1
2
3
4
5
6
7
8
10  
0
2
4
6
8
10  
OUTPUT CURRENT (mA)  
OUTPUT CURRENT (mA)  
Figure 17. Output Voltage vs. Output Current  
Figure 18. Output Voltage vs. Output Current  
www.onsemi.com  
7
NCP785A  
TYPICAL CHARACTERISTICS  
5.0  
4.5  
4.0  
3.5  
3.0  
2.5  
2.0  
1.5  
1.0  
8
NCP785AH33T1G  
NCP785AH50T1G  
7
6
5
4
3
2
C
C
= 2.2 mF  
C
C
= 2.2 mF  
IN  
IN  
= 22 mF  
= 22 mF  
OUT  
OUT  
I
= 100 mA  
I
= 100 mA  
OUT  
OUT  
V
IN  
= 340 V  
V
IN  
= 340 V  
T = 25°C  
A
T = 25°C  
A
1
0
0.5  
0
10  
100  
1K  
10K  
100K  
1M  
10  
100  
1K  
10K  
100K  
1M  
FREQUENCY (Hz)  
FREQUENCY (Hz)  
Figure 19. Output Noise Density vs. Frequency  
Figure 20. Output Noise Density vs. Frequency  
8
7
6
25  
20  
15  
10  
NCP785AH50T1G  
NCP785AH150T1G  
C
C
I
= 2.2 mF  
C
C
I
= 2.2 mF  
IN  
IN  
= 22 mF  
= 22 mF  
OUT  
OUT  
5
4
3
2
= 100 mA  
= 100 mA  
OUT  
OUT  
V
IN  
= 340 V  
V
IN  
= 340 V  
T = 25°C  
A
T = 25°C  
A
5
0
1
0
10  
100  
1K  
10K  
100K  
1M  
10  
100  
1K  
10K  
100K  
1M  
FREQUENCY (Hz)  
FREQUENCY (Hz)  
Figure 21. Output Noise Density vs. Frequency  
Figure 22. Output Noise Density vs. Frequency  
www.onsemi.com  
8
NCP785A  
APPLICATION INFORMATION  
The typical application circuit for the NCP785A device is shown below.  
VIN  
VOUT  
25 V − 450 V  
3.3 V, 5 V, 15 V  
VIN  
NCP785A  
GND  
VOUT  
COUT  
22 μF  
CIN  
2.2 μF  
Figure 23. Typical Application Schematic  
Layout Recommendations  
Input Decoupling (C1)  
A 1 mF capacitor either ceramic or electrolytic is  
recommended and should be connected close to the input pin  
of NCP785A. Higher value 2.2 mF is necessary to sustain the  
required minimum input voltage at full load for AC voltage  
as low as 85 V with half wave rectifier.  
Please be sure the V and GND lines are sufficiently  
IN  
wide. When the impedance of these lines is high, there is a  
chance to pick up noise or to cause the malfunction of  
regulator.  
Set external components, especially the output capacitor,  
as close as possible to the circuit, and make leads as short as  
possible.  
Output Decoupling (C2)  
The NCP785A Regulator does not require any specific  
Equivalent Series Resistance (ESR). Thus capacitors  
exhibiting ESRs ranging from a few mW up to 0.5 W can be  
used safely. The minimum decoupling value is 22 mF. The  
regulator accepts ceramic chip capacitors as well as  
tantalum devices or low ESR electrolytic capacitors. Larger  
values improve noise rejection and load transient response.  
Thermal  
As power across the NCP785A increases, it might become  
necessary to provide some thermal relief. The maximum  
power dissipation supported by the device is dependent  
upon board design layout and used package. Mounting pad  
configuration on the PCB, the board material, and also the  
ambient temperature affect the rate of temperature rise for  
the part. This is stating that when the NCP785A has good  
thermal conductivity through the PCB, the junction  
temperature will be relatively low with high power  
dissipation applications.  
ORDERING INFORMATION  
Part Number  
NCP785AH33T1G  
NCP785AH50T1G  
NCP785AH120T1G  
NCP785AH150T1G  
Output Voltage  
Marking  
AA  
Package  
Shipping  
3.3 V  
5 V  
AC  
SOT−89  
(Pb−Free)  
1000 / Tape & Reel  
12 V  
15 V  
AJ  
AD  
†For information on tape and reel specifications, including part orientation and tape sizes, please refer to our Tape and Reel Packaging  
Specifications Brochure, BRD8011/D.  
www.onsemi.com  
9
NCP785A  
PACKAGE DIMENSIONS  
SOT−89, 3 LEAD  
CASE 528AG  
ISSUE O  
A
H
NOTES:  
D
1. DIMENSIONING AND TOLERANCING PER ASME  
Y14.5M, 1994.  
2. CONTROLLING DIMENSION: MILLIMETERS.  
3. LEAD THICKNESS INCLUDES LEAD FINISH.  
4. DIMENSIONS D AND E DO NOT INCLUDE MOLD  
FLASH, PROTRUSIONS, OR GATE BURRS.  
5. DIMENSIONS L, L2, D2, AND H ARE MEASURED AT  
DATUM PLANE C.  
E
6. CENTER LEAD CONTOUR MAY VARY WITHIN THE  
REGION DEFINED BY DIMENSION E.  
7. DIMENSION D2 IS DEFINED AT ITS WIDEST POINT.  
1
2
3
MILLIMETERS  
DIM MIN  
MAX  
1.60  
0.47  
0.55  
0.44  
4.60  
1.90  
2.60  
TOP VIEW  
A
b
1.40  
0.38  
0.46  
0.40  
4.40  
1.60  
2.40  
b1  
c
D
D2  
E
c
A
e
H
L
1.50 BSC  
0.10 C  
4.05  
0.89  
4.25  
1.20  
C
SIDE VIEW  
RECOMMENDED  
MOUNTING FOOTPRINT*  
e
b1  
e
b
L2  
PACKAGE  
2.00  
OUTLINE  
1
2
3
L
4.45  
1.57  
0.86  
1
B
D2  
BOTTOM VIEW  
2X  
0.50  
0.58  
2X  
1.50  
DIMENSIONS: MILLIMETERS  
*For additional information on our Pb−Free strategy and soldering  
details, please download the ON Semiconductor Soldering and  
Mounting Techniques Reference Manual, SOLDERRM/D.  
ON Semiconductor and the  
are registered trademarks of Semiconductor Components Industries, LLC (SCILLC) or its subsidiaries in the United States and/or other countries.  
SCILLC owns the rights to a number of patents, trademarks, copyrights, trade secrets, and other intellectual property. A listing of SCILLC’s product/patent coverage may be accessed  
at www.onsemi.com/site/pdf/Patent−Marking.pdf. SCILLC reserves the right to make changes without further notice to any products herein. SCILLC makes no warranty, representation  
or guarantee regarding the suitability of its products for any particular purpose, nor does SCILLC assume any liability arising out of the application or use of any product or circuit, and  
specifically disclaims any and all liability, including without limitation special, consequential or incidental damages. “Typical” parameters which may be provided in SCILLC data sheets  
and/or specifications can and do vary in different applications and actual performance may vary over time. All operating parameters, including “Typicals” must be validated for each  
customer application by customer’s technical experts. SCILLC does not convey any license under its patent rights nor the rights of others. SCILLC products are not designed, intended,  
or authorized for use as components in systems intended for surgical implant into the body, or other applications intended to support or sustain life, or for any other application in which  
the failure of the SCILLC product could create a situation where personal injury or death may occur. Should Buyer purchase or use SCILLC products for any such unintended or  
unauthorized application, Buyer shall indemnify and hold SCILLC and its officers, employees, subsidiaries, affiliates, and distributors harmless against all claims, costs, damages, and  
expenses, and reasonable attorney fees arising out of, directly or indirectly, any claim of personal injury or death associated with such unintended or unauthorized use, even if such claim  
alleges that SCILLC was negligent regarding the design or manufacture of the part. SCILLC is an Equal Opportunity/Affirmative Action Employer. This literature is subject to all applicable  
copyright laws and is not for resale in any manner.  
PUBLICATION ORDERING INFORMATION  
LITERATURE FULFILLMENT:  
N. American Technical Support: 800−282−9855 Toll Free  
USA/Canada  
Europe, Middle East and Africa Technical Support:  
Phone: 421 33 790 2910  
Japan Customer Focus Center  
Phone: 81−3−5817−1050  
ON Semiconductor Website: www.onsemi.com  
Order Literature: http://www.onsemi.com/orderlit  
Literature Distribution Center for ON Semiconductor  
P.O. Box 5163, Denver, Colorado 80217 USA  
Phone: 303−675−2175 or 800−344−3860 Toll Free USA/Canada  
Fax: 303−675−2176 or 800−344−3867 Toll Free USA/Canada  
Email: orderlit@onsemi.com  
For additional information, please contact your local  
Sales Representative  
NCP785A/D  

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