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PDF NCP4640 Data sheet ( Hoja de datos )
| Número de pieza | NCP4640 | |
| Descripción | Voltage Regulator | |
| Fabricantes | ON Semiconductor | |
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NCP4640
50 mA, Wide Input Range,
Voltage Regulator
The NCP4640 is a CMOS 50 mA linear voltage regulator with high
input voltage and ultra−low supply current. It incorporates multiple
protection features such as peak current limit, short circuit current
limit and thermal shutdown to ensure a very robust device.
A high maximum input voltage tolerance of 50 V and a wide
temperature range make the NCP4640 suitable for a variety of
demanding applications.
Features
• Operating Input Voltage Range: 4 V to 36 V
• Output Voltage Range: 2.0 to 12.0 V (0.1 steps)
• ±2% Output Voltage Accuracy
• Output Current: min 50 mA (VIN = 8 V, VOUT = 5 V)
• Line Regulation: 0.05%/V
• Peak Current Limit Circuit
• Short Current Limit Circuit
• Thermal Shutdown Circuit
• Available in SOT−89−5 and SOIC6−TL Package
• These are Pb−Free Devices
Typical Applications
• Power source for home appliances
• Power source for car audio equipment, navigation system
• Power source for notebooks, digital TVs, cordless phones and private
LAN systems
• Power source for office equipment machines such as copiers,
printers, facsimiles, scanners, projectors, etc.
VIN
C1
100n
NCP4640x
VIN VOUT
CE
GND
VOUT
C2
100n
http://onsemi.com
MARKING
DIAGRAMS
SOIC6−TL
CASE 751BR
XXX
XMM
1
SOT−89 5
CASE 528AB
1
XXX
XMM
XXXX = Specific Device Code
MM = Date Code
(Note: Microdot may be in either location)
ORDERING INFORMATION
See detailed ordering and shipping information in the package
dimensions section on page 15 of this data sheet.
Figure 1. Typical Application Schematic
© Semiconductor Components Industries, LLC, 2011
February, 2011 − Rev. 1
1
Publication Order Number:
NCP4640/D
1 page  
NCP4640
TYPICAL CHARACTERISTICS
2.5
2.0 4.5 V
5.0 V
1.5
VIN = 4.0 V
5.5 V
1.0
0.5
0.0
0
50 100 150 200
IOUT (mA)
Figure 3. Output Voltage vs. Output Current
2.0 V Version (TJ = 255C)
3.5
3.0
6.0 V
5.0 V
2.5 VIN = 6.5 V
2.0
5.5 V
1.5
1.0
0.5
0.0
0
50 100 150 200
IOUT (mA)
Figure 4. Output Voltage vs. Output Current
3.3 V Version (TJ = 255C)
9.0
8.0 10.5 V
7.0 11 V
6.0 11.5 V
5.0
10 V
4.0
3.0
2.0
1.0
0.0 0
50 100 150 200
IOUT (mA)
Figure 5. Output Voltage vs. Output Current
8.0 V Version (TJ = 255C)
14.0
12.0 14.5 V
15 V
10.0
15.5 V
8.0 14 V
6.0
4.0
2.0
0.0 0
50 100 150 200
IOUT (mA)
Figure 6. Output Voltage vs. Output Current
12 V Version (TJ = 255C)
1.50 1.50
1.25 1.25
1.00 1.00
0.75 0.75
0.50
TJ = 25°C
105°C
0.25
−40°C
0.00
0
10 20 30 40 50
IOUT (mA)
Figure 7. Dropout Voltage vs. Output Current
8.0 V Version
0.50
0.25
TJ = 25°C
105°C
0.00
0
−40°C
10 20 30 40 50
IOUT (mA)
Figure 8. Dropout Voltage vs. Output Current
12 V Version
http://onsemi.com
5
5 Page 
NCP4640
TYPICAL CHARACTERISTICS
30
20
10
8.6 0
8.4
8.2
8.0
7.8
7.6
7.4
7.20 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0
t (ms)
Figure 32. Load Transients, 8.0 V Version,
IOUT = 1 – 20 mA, tR = tF = 50 ms, VIN = 11.0 V
30
20
10
0
12.8
12.4
12.0
11.6
11.2
10.80 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0
t (ms)
Figure 33. Load Transients, 12.0 V Version,
IOUT = 1 – 20 mA, tR = tF = 50 ms, VIN = 15.0 V
60
50
40
30
20
2.2
2.1
2.0
1.9
1.8
1.70 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0
t (ms)
Figure 34. Load Transients, 2.0 V Version,
IOUT = 20 – 50 mA, tR = tF = 50 ms, VIN = 5.0 V
http://onsemi.com
11
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| Páginas | Total 17 Páginas | |
| PDF Descargar | [ Datasheet NCP4640.PDF ] | |
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