NCV78LxxA 반도체 회로 부품 판매점
Three-Terminal Low Current Positive Voltage Regulators
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 ON Semiconductor |
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MC78L00A Series,
NCV78L00A
100 mA Positive Voltage
Regulators
The MC78L00A 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.
Features
• 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−Free Packages are Available
• NCV Prefix for Automotive and Other Applications Requiring Site
and Control Changes
15k
Q1
3.8k
Q3 Q5
Q4 Q6
Q11
Q12
Input
Q10
5.0k 3.0 Output
0−25k
1.2k
Z1 Q2
420
1.9k 19k 2.2k
C Q9
Q8
Q7
1.0k
2.85k
Ground
Figure 1. Representative Schematic Diagram
Input
MC78LXXA
Output
Cin*
0.33mF
CO**
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.
* 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.
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TO−92
P SUFFIX
1 CASE 029
23
Pin: 1. Output
2. Ground
3. Input
8
1
SOIC−8*
D SUFFIX
CASE 751
*SOIC−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. SOIC−8 conforms to all exter-
nal dimensions of the standard SO−8 package.
PIN CONNECTIONS
VOUT 1
GND 2
GND 3
NC 4
8 VIN
7 GND
6 GND
5 NC
(Top View)
ORDERING INFORMATION
See detailed ordering and shipping information in the package
dimensions section on page 9 of this data sheet.
DEVICE MARKING INFORMATION
See general marking information in the device marking
section on page 13 of this data sheet.
© Semiconductor Components Industries, LLC, 2004
December, 2004 − Rev. 9
1
Publication Order Number:
MC78L00A/D
MC78L00A Series, NCV78L00A
MAXIMUM RATINGS (TA = +125°C, unless otherwise noted.)
Rating
Symbol
Value
Unit
Input Voltage (2.6 V−8.0 V)
Input Voltage (12 V−18 V)
Input Voltage (24 V)
VI 30 Vdc
35
40
Storage Temperature Range
Tstg −65 to +150
°C
Operating Junction Temperature Range
TJ 0 to +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.
ELECTRICAL CHARACTERISTICS (VI = 10 V, IO = 40 mA, CI = 0.33 mF, CO = 0.1 mF, −40°C < TJ < +125°C (for MC78LXXAB,
NCV78L05A), 0°C < TJ < +125°C (for MC78LXXAC), unless otherwise noted.)
MC78L05AC, AB, NCV78L05A
Characteristics
Symbol Min Typ Max Unit
Output Voltage (TJ = +25°C)
VO 4.8 5.0 5.2 Vdc
Line Regulation
(TJ = +25°C, IO = 40 mA)
7.0 Vdc ≤ VI ≤ 20 Vdc
8.0 Vdc ≤ VI ≤ 20 Vdc
Regline
mV
− 55 150
− 45 100
Load Regulation
(TJ = +25°C, 1.0 mA ≤ IO ≤ 100 mA)
(TJ = +25°C, 1.0 mA ≤ IO ≤ 40 mA)
Regload
−
mV
11 60
− 5.0 30
Output Voltage
(7.0 Vdc ≤ VI ≤ 20 Vdc, 1.0 mA ≤ IO ≤ 40 mA)
(VI = 10 V, 1.0 mA ≤ IO ≤ 70 mA)
VO Vdc
4.75 − 5.25
4.75 − 5.25
Input Bias Current
(TJ = +25°C)
(TJ = +125°C)
IIB mA
− 3.8 6.0
− − 5.5
Input Bias Current Change
(8.0 Vdc ≤ VI ≤ 20 Vdc)
(1.0 mA ≤ IO ≤ 40 mA)
DIIB mA
− − 1.5
− − 0.1
Output Noise Voltage
(TA = +25°C, 10 Hz ≤ f ≤ 100 kHz)
Vn − 40 − mV
Ripple Rejection (IO = 40 mA,
f = 120 Hz, 8.0 Vdc ≤ VI ≤ 18 V, TJ = +25°C)
RR 41 49 − dB
Dropout Voltage (TJ = +25°C)
VI − VO − 1.7 − Vdc
NOTE: NCV78L05A: Tlow = −40°C, Thigh = +125°C. Guaranteed by design. NCV prefix is for automotive and other applications requiring
site and change control.
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