Document
Voltage Regulators – Positive
1.0 A
MC7800, MC7800A, MC7800AE, NCV7800
These voltage regulators are monolithic integrated circuits designed as fixed−voltage regulators for a wide variety of applications including local, on−card regulation. These regulators employ internal current limiting, thermal shutdown, and safe−area compensation. With adequate heatsinking they can deliver output currents in excess of 1.0 A. Although designed primarily as a fixed voltage regulator, these devices can be used with external components to obtain adjustable voltages and currents.
Features
• Output Current in Excess of 1.0 A • No External Components Required • Internal Thermal Overload Protection • Internal Short Circuit Current Limiting • Output Transistor Safe−Area Compensation • Output Voltage Offered in 1.5%, 2% and 4% Tolerance • Available in Surface Mount D2PAK−3, DPAK−3 and Standard
3−Lead Transistor Packages
• NCV Prefix for Automotive and Other Applications Requiring
Unique Site and Control Change Requirements; AEC−Q100 Qualified and PPAP Capable
• These are Pb−Free Devices
MAXIMUM RATINGS (TA = 25°C, unless otherwise noted)
Value
Unit
Rating
Symbol 369C 221A 936
Input Voltage
(5.0 − 18 V)
VI
(24 V)
35
Vdc
40
Power Dissipation
Thermal Resistance, Junction−to−Ambient
PD RqJA
Internally Limited
W
92 65 Figure °C/W 15
Thermal Resistance, Junction−to−Case
RqJC 5.0 5.0 5.0 °C/W
Storage Junction Temperature
Tstg
Range
−65 to +150
°C
Operating Junction Temperature
TJ
+150
°C
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.
*This device series contains ESD protection and exceeds the following tests: Human Body Model 2000 V per MIL_STD_883, Method 3015. Machine Model Method 200 V.
DATA SHEET www.onsemi.com
12 3
TO−220 T SUFFIX CASE 221AB
Heatsink surface connected to Pin 2.
Pin 1. Input
D2PAK−3
2. Ground D2T SUFFIX
1
3. Output
CASE 936
3
Heatsink surface (shown as terminal 4 in case outline drawing) is connected to Pin 2.
4
12 3
DPAK−3 DT SUFFIX CASE 369C
STANDARD APPLICATION
Input Cin*
0.33 mF
MC78XX
Output CO**
A common ground is required between the input and the output voltages. The input voltage must remain typically 2.0 V above the output voltage even during the low point on the input ripple voltage.
XX, These two digits of the type number indicate nominal voltage.
* Cin is required if regulator is located an appreciable distance from power supply filter.
** CO is not needed for stability; however, it does improve transient response. Values of less than 0.1 mF could cause instability.
ORDERING INFORMATION
See detailed ordering and shipping information in the package dimensions section on page 23 of this data sheet.
DEVICE MARKING INFORMATION
See general marking information in the device marking section on page 27 of this data sheet.
© Semiconductor Components Industries, LLC, 2014
1
August, 2021 − Rev. 28
Publication Order Number: MC7800/D
MC7800, MC7800A, MC7800AE, NCV7800
R18 100 k
D1 Zener
MC7800
LAT Q17
R24 50
LAT 3 A Q18
Q19 QNPN
D2 Zener
R19 27.5 k
C3 1.0 P
Q10 QNPN
R22 100
R14 1.0 k
R15
R21
680
600
Q7 QNPN R17 9.0 k
R1 10.66 k
Q5 QNPN 2
Q9
QNPN 2 Q6
R11
QNPN
15 k
R2 1.56 k
Q8 QNPN
Q14 QNPN
R5 4.5 k
C2 3.0 P
Q1 QNPN 6
Q13 QNPN
R6 1.0 k
Q15 QNPN
R20 17500
Q12 QNPN
R12 3.0 k
R25
R16
R10 6.0 k
600
3340-(3316ACT) R26
3.0 k
R9 3.0 k
C1 N+ 30 P
Q4 QNPN
Q2 Q16 QNPN 4
Diode
Q3 QNPN
SUB Q11 2
R13 11660
R7
R3
R8
14 k 1.8 k
5.0 k
Q20 QNPN
R23 0.2
Vin
R30 18 k R29 9.0 k R28 9.0 k R27 9.0 k
Vout 5.01 Sense
This device contains 22 active transistors. Figure 1. Representative Schematic Diagram
www.onsemi.com 2
MC7800, MC7800A, MC7800AE, NCV7800
ELECTRICAL CHARACTERISTICS (Vin = 10 V, IO = 500 mA, TJ = Tlow to 125°C (Note 1), unless otherwise noted)
MC7805B, NCV7805B
MC7805C
Characteristic
Symbol Min
Typ
Max
Min
Typ
Max Unit
Output Voltage (TJ = 25°C) Output Voltage (5.0 mA ≤ IO ≤ 1.0 A, PD ≤ 15 W)
7.0 Vdc ≤ Vin ≤ 20 Vdc 8.0 Vdc ≤ Vin ≤ 20 Vdc
Line Regulation (Note 4) 7.5 Vdc ≤ Vin ≤ 20 Vdc, 1.0 A 8.0 Vdc ≤ Vin ≤ 12 Vdc
Load Regulation (Note 4) 5.0 mA ≤ IO ≤ 1.0 A 5.0 mA ≤ IO ≤ 1.5 A (TA = 25°C)
Quiescent Current
Quiescent Current Change 7.0 Vdc ≤ Vin ≤ 25 Vdc 5.0 mA ≤ IO ≤ 1.0 A (TA = 25°C)
Ripple Rejection 8.0 Vdc ≤ Vin ≤ 18 Vdc, f = 120 Hz
Dropout Voltage (IO = 1.0 A, TJ = 25°C) Output Noise Voltage (TA = 25°C)
10 Hz ≤ f ≤ 100 kHz
VO VO
Regline
Regload
IB DIB
RR VI − VO
Vn
4.8
− 4.75
− −
− − −
− −
− −
−
5.0
− 5.0
5.0 1.3
1.3 0.15 3.2
− −
68 2.0
10
5.2
− 5.25
100 50
100 50 8.0
− 0.5
− −
−
4.8
4.75 −
− −
− − −
− −
62 −
−
5.0
5.0 −
0.5 0.8
1.3 1.3 3.2
0.3 0.08
83 2.0
10
5.2.