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PDF NCV4276A Data sheet ( Hoja de datos )
| Número de pieza | NCV4276A | |
| Descripción | Low-Drop Voltage Regulator | |
| Fabricantes | ON Semiconductor | |
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NCV4276, NCV4276A
400 mA Low−Drop Voltage
Regulator
The NCV4276 is a 400 mA output current integrated low dropout
regulator family designed for use in harsh automotive environments.
It includes wide operating temperature and input voltage ranges. The
device is offered with fixed output voltage options of 1.8 V and 2.5 V
with 4% output voltage accuracy while the 3.3 V, 5.0 V, and
adjustable voltage versions are available either in 2% or 4% output
voltage accuracy. It has a high peak input voltage tolerance and
reverse input voltage protection. It also provides overcurrent
protection, overtemperature protection and inhibit for control of the
state of the output voltage. The NCV4276 family is available in
DPAK and D2PAK surface mount packages. The output is stable over
a wide output capacitance and ESR range.
Features
• 2.5 V and 1.8 V ±4% Output Voltage
• 3.3 V, 5.0 V, and Adjustable Voltage Version (from 2.5 V to 20 V)
±4% or ±2% Output Voltage
• 400 mA Output Current
• 500 mV (max) Dropout Voltage (5.0 V Output)
• Inhibit Input
• Very Low Current Consumption
• Fault Protection
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♦ +45 V Peak Transient Voltage
♦ −42 V Reverse Voltage
♦ Short Circuit
♦ Thermal Overload
• NCV Prefix for Automotive and Other Applications Requiring Site
and Control Changes
• Pb−Free Packages are Available
http://onsemi.com
1
5
DPAK
5−PIN
DT SUFFIX
CASE 175AA
1
5
D2PAK
5−PIN
DS SUFFIX
CASE 936A
DEVICE MARKING INFORMATION
See general marking information in the device marking
section on page 20 of this data sheet.
ORDERING INFORMATION
See detailed ordering and shipping information in the ordering
information section on page 21 of this data sheet.
© Semiconductor Components Industries, LLC, 2006
October, 2006 − Rev. 18
1
Publication Order Number:
NCV4276/D
1 page  
5.5 − 45 V
Input
II
CI1
1.0 mF
IINH
NCV4276, NCV4276A
CI2
100 nF
I1
INH 2
5Q
NCV4276
3
GND
4 NC
IQ
CQ
22 mF
Output
RL
Input
Figure 3. Applications Circuit; Fixed Voltage Version
II
CI1
1.0 mF
IINH
CI2
100 nF
VQ = [(R1 + R2) * Vref] / R2
I1 5Q
INH 2
NCV4276
NCV4276A
3
GND
4 VA
IQ
CQ
22 mF
Output
R1
R2
RL
Figure 4. Applications Circuit; Adjustable Voltage Version
TYPICAL PERFORMANCE CHARACTERISTICS
1000
100
10
Unstable ESR Region for
CQ = 1 mF − 22 mF
1
0.1
0.01
0
Maximum ESR for
CQ = 1 mF − 22 mF
Stable ESR Region
50 100 150 200 250 300 350 400 450
OUTPUT CURRENT (mA)
10.0
9.0
8.0
7.0
6.0
5.0
4.0
3.0
2.0
1.0
0.0
0
CQ = 10 mF for these
Output Voltages
Unstable Region
2.5 V
3.3 V
1.8 V
Stable Region
50 100 150 200 250 300 350 400 450
OUTPUT CURRENT (mA)
Figure 5. Output Stability with Output Capacitor
ESR, 5.0 V and Adjustable Regulator
Figure 6. Output Stability with Output Capacitor
ESR, 1.8 V, 2.5 V, 3.3 V Regulators
http://onsemi.com
5
5 Page 
NCV4276, NCV4276A
TYPICAL PERFORMANCE CHARACTERISTICS − 4276A Version
6.0
4.0
2.0
0
−2.0
−4.0
−6.0
RL = 6.8 kW
TJ = 25°C
−8.0
−10
−50 −25 0 25 50
VI, INPUT VOLTAGE (V)
Figure 34. Input Current vs. Input Voltage,
5.0 V Version
600
500
TJ = 125°C
400
300
TJ = 25°C
200
100
0
0
100 200 300
IQ, OUTPUT CURRENT (mA)
Figure 36. Dropout Voltage VDR vs.
Output Current IQ
400
2.0
0
−2.0
−4.0
−6.0
−8.0
RL = 6.8 kW
TJ = 25°C
−10
−50 −25 0 25 50
VI, INPUT VOLTAGE (V)
Figure 35. Input Current II vs. Input Voltage VI,
3.3 V Version
800
TJ = 25°C
VQ = 0 V
600
400
200
0
0 10 20 30 40
VI, INPUT VOLTAGE (V)
Figure 37. Maximum Output Current IQ vs.
Input Voltage VI
50
60
50
40
VI = 13.5 V
TJ = 25°C
30
20
10
0
0 100 200 300 400 500 600
IQ, OUTPUT CURRENT (mA)
Figure 38. Current Consumption Iq vs.
Output Current IQ (High Load)
1.6
1.4
1.2
1.0
0.8
0.6
0.4
0.2
0
0
VI = 13.5 V
10 20 30 40 50
IQ, OUTPUT CURRENT (mA)
Figure 39. Current Consumption Iq vs.
Output Current IQ (Low Load)
60
http://onsemi.com
11
11 Page | ||
| Páginas | Total 23 Páginas | |
| PDF Descargar | [ Datasheet NCV4276A.PDF ] | |
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