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PDF NCP4686 Data sheet ( Hoja de datos )
| Número de pieza | NCP4686 | |
| Descripción | Low Dropout Regulator | |
| Fabricantes | ON Semiconductor | |
| Logotipo |  |
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NCP4686
400 mA, High Accuracy,
Low Input Voltage, Low
Dropout Regulator
The NCP4686 is CMOS Linear voltage regulators with 400 mA
output current capability. The device has very high output voltage
accuracy, low supply current and low ON−resistance transistor. The
NCP4686 is easy to use and includes output current fold−back
protection and a fully integrated constant slope circuit as a soft−start
circuit. Due to it inrush current is minimized and no output voltage
overshoots are there. A Chip Enable function is included to save
power by lowering supply current.
Features
• Operating Input Voltage Range: 1.0 V to 3.6 V
• Output Voltage Range: 0.7 V to 1.8 V (available in 0.1 V steps)
• Output Voltage Accuracy: ±0.8% (VOUT ≥ 1.0 V, TA = 25°C)
• Supply Current: 48 mA
• Dropout Voltage: 0.22 V (VOUT = 1.5 V)
• Line Regulation: 0.1%/V Typ.
• Ripple Rejection: Typ. 60 dB (f = 10 kHz)
• Stable with Ceramic Capacitors: 1 mF or more
• Current Fold Back Protection
• Build−in Constant Slope Circuit
• Available in XDFN6 1.2 x 1.2 mm, SC−70, SOT23 Packages
• These are Pb−Free Devices
Typical Applications
• Battery−powered Equipment
• Networking and Communication Equipment
• Cameras, DVRs, STB and Camcorders
• Home Appliances
VIN NCP4686x VOUT
VIN VOUT
CE
C1
1m
GND
C2
1m
http://onsemi.com
MARKING
DIAGRAMS
SC−70
CASE 419A
XXX
XMM
SOT−23−5
CASE 1212
XXX
M
XDFN6
CASE 711AA
XX
MM
XX, XXX, XXXX = Specific Device Code
M, MM
= Date Code
A = Assembly Location
Y = Year
W = Work Week
G = Pb−Free Package
(*Note: Microdot may be in either location)
ORDERING INFORMATION
See detailed ordering and shipping information in the package
dimensions section on page 14 of this data sheet.
Figure 1. Typical Application Schematics
© Semiconductor Components Industries, LLC, 2011
May, 2011 − Rev. 0
1
Publication Order Number:
NCP4686/D
1 page  
NCP4686
TYPICAL CHARACTERISTICS
0.85
0.84
VIN = 1.8 V
0.83
0.82
0.81
0.80
0.79
0.78
0.77
0.76
0.75
−40
−20
0
20 40 60 80
TJ, JUNCTION TEMPERATURE (°C)
Figure 9. Output Voltage vs. Temperature,
0.8 V Version
1.85
1.84
VIN = 2.8 V
1.83
1.82
1.81
1.80
1.79
1.78
1.77
1.76
1.75
−40
−20
0
20 40 60 80
TJ, JUNCTION TEMPERATURE (°C)
Figure 11. Output Voltage vs. Temperature,
2.8 V Version
1.25
1.24
VIN = 2.2 V
1.23
1.22
1.21
1.20
1.19
1.18
1.17
1.16
1.15
−40
−20
0
20 40 60 80
TJ, JUNCTION TEMPERATURE (°C)
Figure 10. Output Voltage vs. Temperature,
1.2 V Version
60
50
40
30
20
10
0
0 0.6 1.2 1.8 2.4 3 3.6
VIN, INPUT VOLTAGE (V)
Figure 12. Supply Current vs. Input Voltage,
0.8 V Version
60
50
40
30
20
10
0
0
0.6 1.2 1.8 2.4
3
3.6
VIN, INPUT VOLTAGE (V)
Figure 13. Supply Current vs. Input Voltage,
1.2 V Version
100
90
80
70
60
50
40
30
20
10
0
0
0.6 1.2 1.8 2.4
3
3.6
VIN, INPUT VOLTAGE (V)
Figure 14. Supply Current vs. Input Voltage,
1.8 V Version
http://onsemi.com
5
5 Page 
NCP4686
TYPICAL CHARACTERISTICS
45
30
15
0
0.84
0.82
0.80
0.78
0.76
0.74
0
40 80 120 160 200 240 280 320 360
t (ms)
Figure 36. Load Transients, 0.8 V Version,
IOUT = 1 – 30 mA, tR = tF = 0.5 ms, VIN = 1.8 V
400
45
30
15
0
1.24
1.22
1.20
1.18
1.16
1.14
0
40 80 120 160 200 240 280 320 360
t (ms)
Figure 37. Load Transients, 1.2 V Version,
IOUT = 1 – 30 mA, tR = tF = 0.5 ms, VIN = 2.2 V
400
45
30
15
0
1.84
1.82
1.80
1.78
1.76
1.74
0
40 80 120 160 200 240 280 320 360 400
t (ms)
Figure 38. Load Transients, 1.8 V Version,
IOUT = 1 – 30 mA, tR = tF = 0.5 ms, VIN = 2.8 V
http://onsemi.com
11
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| Páginas | Total 17 Páginas | |
| PDF Descargar | [ Datasheet NCP4686.PDF ] | |
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