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參數(shù)資料
| 型號： | MC78L12CP |
| 廠商： | MOTOROLA INC |
| 元件分類： | 固定正電壓單路輸出標(biāo)準(zhǔn)穩(wěn)壓器 |
| 英文描述： | Low Pin Count Synchronous Buck DC/DC Controller 10-SON -40 to 85 |
| 中文描述： | 12 V FIXED POSITIVE REGULATOR, PBCY3 |
| 封裝： | PLASTIC, POWER PACK-3 |
| 文件頁數(shù)： | 1/8頁 |
| 文件大?。?/td> | 157K |
| 代理商： | MC78L12CP |
MC78L00, A
Series
Order this document by MC78L00/D
DEVICE TYPE/NOMINAL VOLTAGE
D SUFFIX
PLASTIC PACKAGE
CASE 751
(SOP–8)*
P SUFFIX
CASE 29
8
1
2
3
1
Pin 1. Vout
2. GND
3. GND
4. NC
5. NC
6. GND
7. GND
8. Vin
* SOP–8 is an internally modified SO–8 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.
SOP–8 conforms to all external dimensions of the
standard SO–8 package.
Pin 1. Output
2. GND
3. Input
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.
*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.
MC78LXX
Input
Cin*
0.33
F
CO**
Output
10%
5%
Voltage
MC78L05C
MC78L08C
MC78L09C
MC78L12C
MC78L15C
MC78L18C
MC78L24C
MC78L05AC
MC78L08AC
MC78L09AC
MC78L12AC
MC78L15AC
MC78L18AC
MC78L24AC
5.0
8.0
9.0
12
15
18
24
1
MOTOROLA ANALOG IC DEVICE DATA
Three-Terminal Low Current
Positive Voltage Regulators
The MC78L00, A Series of positive voltage regulators are inexpensive,
easy–to–use devices suitable for a multitude of applications that require a
regulated supply of up to 100 mA. Like their higher powered MC7800 and
MC78M00 Series cousins, these regulators feature internal current limiting
and thermal shutdown making them remarkably rugged.
No external
components are required with the MC78L00 devices in many applications.
These devices offer a substantial performance advantage over the
traditional zener diode–resistor combination, as output impedance and
quiescent current are substantially reduced.
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 (MC79L00 Series)
Available in either ±5% (AC) or ±10% (C) Selections
Representative Schematic Diagram
15k
Q1
Q3
Q5
Input
Output
Ground
Q11
Q12
3.0
0–25k
2.85k
5.0k
Q10
3.8k
Q4
Q6
1.2k
1.9k
19k
2.2k
Q9
Q8
C
Q7
1.0k
420
Z1
Q2
ORDERING INFORMATION
Device
Operating
Temperature Range
Package
MC78LXXACD*
T
0
12
C
SOP–8
MC78LXXACP
TJ = 0° to +125°C
Plastic Power
MC78LXXCP
Plastic Power
MC78LXXABD*
TJ = –40° to +125°C
SOP–8
MC78LXXABP*
TJ = –40° to +125°C
Plastic Power
XX indicates nominal voltage
*Available in 5, 8, 9, 12 and 15 V devices.
Motorola, Inc. 1996
Rev 3
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