參數(shù)資料
型號(hào)： NCV7812BT
廠商： ON SEMICONDUCTOR
元件分類： 基準(zhǔn)電壓源/電流源
英文描述： THREE-TERMINAL POSITIVE FIXED VOLTAGE REGULATORS
中文描述： 12 V FIXED POSITIVE REGULATOR, SFM3
封裝： TO-220, 3 PIN
文件頁(yè)數(shù)： 1/32頁(yè)
文件大?。?/td> 234K
代理商： NCV7812BT
Semiconductor Components Industries, LLC, 2005
April, 2005 Rev. 14
1
Publication Order Number:
MC7800/D
MC7800, MC7800A,
NCV7805
1.0 A Positive Voltage
Regulators
These voltage regulators are monolithic integrated circuits designed
as fixedvoltage regulators for a wide variety of applications
including local, oncard regulation. These regulators employ internal
current limiting, thermal shutdown, and safearea 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.
Output Current in Excess of 1.0 A
No External Components Required
Internal Thermal Overload Protection
Internal Short Circuit Current Limiting
Output Transistor SafeArea Compensation
Output Voltage Offered in 2% and 4% Tolerance
Available in Surface Mount D
2
PAK3, DPAK3 and Standard
3Lead Transistor Packages
NCV Prefix for Automotive and Other Applications Requiring Site
and Control Changes
PbFree Packages are Available
MAXIMUM RATINGS
(T
A
= 25
°
C, unless otherwise noted)
Value
Unit
Rating
Symbol
369C
221A
936
Input Voltage
(5.0 18 V)
(24 V)
V
I
35
40
Vdc
Power Dissipation
P
D
Internally Limited
W
Thermal Resistance,
JunctiontoAmbient
R
JA
92
65
Figure
14
°
C/W
Thermal Resistance,
JunctiontoCase
R
JC
5.0
5.0
5.0
°
C/W
Storage Junction Temperature
Range
T
stg
65 to +150
°
C
Operating Junction Temperature
T
J
+150
°
C
Maximum ratings are those values beyond which device damage can occur.
Maximum ratings applied to the device are individual stress limit values (not
normal operating conditions) and are not valid simultaneously. If these limits are
exceeded, device functional operation is not implied, 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.
TO2203
T SUFFIX
CASE 221A
1
D
2
PAK3
D2T SUFFIX
CASE 936
2
3
See detailed ordering and shipping information in the package
dimensions section on page 22 of this data sheet.
ORDERING INFORMATION
Heatsink surface
connected to Pin 2.
Pin 1. Input
2. Ground
3. Output
Heatsink surface (shown as terminal 4 in
case outline drawing) is connected to Pin 2.
4
1
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 the output
voltage even during the low point on the input
ripple voltage.
XX,
MC78XX
Input
C
in
*
0.33 F
C
O
**
Output
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
is not needed for stability; however,
it does improve transient response. Values
of less than 0.1 F could cause instability.
*
**
See general marking information in the device marking
section on page 28 of this data sheet.
DEVICE MARKING INFORMATION
DPAK3
DT SUFFIX
CASE 369C
http://onsemi.com
1 2
3
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