鈥?/div>
Wide Range of Available, Fixed Output Voltages
Low Cost
Internal Short Circuit Current Limiting
Internal Thermal Overload Protection
No External Components Required
Complementary Negative Regulators Offered (MC79L00A Series)
Pb鈭扚ree Packages are Available
NCV Prefix for Automotive and Other Applications Requiring Site
and Control Changes
15k
Q1
Q10
3.8k
Q4
Q6
5.0k
3.0
0鈭?5k
Output
Q3
Q5
Q11
Q12
Input
8
1
SOIC鈭?*
D SUFFIX
CASE 751
*SOIC鈭? is an internally modified SO鈭? package. Pins
2, 3, 6, and 7 are electrically common to the die attach
flag. This internal lead frame modification decreases
package thermal resistance and increases power
dissipation capability when appropriately mounted on
a printed circuit board. SOIC鈭? conforms to all exter-
nal dimensions of the standard SO鈭? package.
PIN CONNECTIONS
V
OUT
1
GND 2
8
7
6
5
(Top View)
V
IN
GND
GND
NC
1.2k
Q2
1.9k
19k
C
2.2k
Q9
Q8
2.85k
GND 3
NC 4
Z1
420
Q7
1.0k
Ground
ORDERING INFORMATION
See detailed ordering and shipping information in the package
dimensions section on page 9 of this data sheet.
Figure 1. Representative Schematic Diagram
Input
C
in
*
0.33mF
MC78LXXA
Output
C
O
**
DEVICE MARKING INFORMATION
See general marking information in the device marking
section on page 13 of this data sheet.
Figure 2. 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.
* 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.
漏
Semiconductor Components Industries, LLC, 2004
1
December, 2004 鈭?Rev. 9
Publication Order Number:
MC78L00A/D