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MC7918CT 数据手册 - ON Semiconductor（安森美）
制造商:
ON Semiconductor（安森美）
分类:
稳压芯片
封装:
TO-220-3
描述:
三端负固定电压的稳压器
Pictures:
3D模型
符号图
焊盘图
引脚图
产品图
页面导航:
原理图在P1
封装尺寸在P15P16
焊盘布局在P15
型号编码规则在P1P11P16
标记信息在P1P14P16
封装信息在P13
技术参数、封装参数在P13
应用领域在P9
电气规格在P2P3P4P5P6P7
导航目录
MC7918CT数据手册
Page:
of 16 Go
若手册格式错乱，请下载阅览PDF原文件
© Semiconductor Components Industries, LLC, 2013
July, 2013 − Rev. 18
1 Publication Order Number:
MC7900/D
MC7900 Series
1.0 A Negative Voltage
Regulators
The MC7900 series of fixed output negative voltage regulators are
intended as complements to the popular MC7800 series devices.
These negative regulators are available in the same seven−voltage
options as the MC7800 devices. In addition, one extra voltage option
commonly employed in MECL systems is also available in the
negative MC7900 series.
Available in fixed output voltage options from − 5.0 V to −24 V,
these regulators employ current limiting, thermal shutdown, and
safe−area compensation − making them remarkably rugged under
most operating conditions. With adequate heatsinking they can deliver
output currents in excess of 1.0 A.
• No External Components Required
• Internal Thermal Overload Protection
• Internal Short Circuit Current Limiting
• Output Transistor Safe−Area Compensation
• Available in 2% Voltage Tolerance (See Ordering Information)
• Pb−Free Package May be Available. The G−Suffix Denotes a
Pb−Free Lead Finish
Figure 1. Representative Schematic Diagram
Gnd
V
O
V
I
2.4 k
25
3.6 k
1.2 k
1.1 k
2.0 k
12 k
1.0 k
4.0 k
2.0 k
14.7 k
2.0 k
8.0 k
1.0 k
1.6 k
4.0 k
0.3
10 k
10 k
20 k 20 k
20 pF
10 pF
240
750
R
1
R
2
This device contains 26 active transistors.
http://onsemi.com
TO−220
T SUFFIX
CASE 221AB
Heatsink surface
connected to Pin 2.
Pin 1. Ground
2. Input
3. Output
D
2
PAK
D2T SUFFIX
CASE 936
Heatsink surface (shown as terminal 4 in
case outline drawing) is connected to Pin 2.
1
2
3
1
2
3
STANDARD APPLICATION
A common ground is required between the input
and the output voltages. The input voltage must
remain typically 2.0 V above more negative even
during the high point of the input ripple voltage.
These two digits of the type number
indicate nominal voltage.
C
in
is required if regulator is located an
appreciable distance from power supply filter.
C
O
improve stability and transient response.
MC79XX
Input
C
in
*
0.33 mF
C
O
**
1.0 mF
Output
XX,
**
**
See detailed ordering and shipping information in the package
dimensions section on page 11 of this data sheet.
ORDERING INFORMATION
See general marking information in the device marking
section on page 14 of this data sheet.
DEVICE MARKING INFORMATION
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