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ADP1828 Scheda tecnica(PDF) 10 Page - Analog Devices

Il numero della parte ADP1828
Spiegazioni elettronici  Synchronous Buck PWM, Step-Down, DC-to-DC Controller
PDF  32 Pages
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Produttore elettronici  AD [Analog Devices]
Homepage  http://www.analog.com
Logo AD - Analog Devices

ADP1828 Scheda tecnica(HTML) 10 Page - Analog Devices

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ADP1828
Rev. 0 | Page 10 of 32
0
20
40
60
80
100
VREG LOAD CURRENT (mA)
5.000
4.995
4.990
4.985
4.980
4.975
4.970
4.965
4.960
4.955
4.950
VIN = 5.5V
TA = 25°C
Figure 10. VREG vs. Load Current
–50
–25
0
25
50
75
100
125
TEMPERATURE (°C)
5.000
4.995
4.990
4.985
4.980
4.975
4.970
4.965
4.960
4.955
4.950
VIN = 7V
NO LOAD
10mA LOAD
100mA LOAD
Figure 11. VREG Voltage vs. Temperature
0
50
100
150
200
250
VREG LOAD CURRENT (mA)
5
4
3
2
1
0
VIN = 5.5V
TA = 25°C
Figure 12. VREG Current-Limit Foldback
3
5
7
9
11
13
15
17
VIN (V)
3.0
2.5
2.0
1.5
1.0
0.5
0
300kHz
600kHz
TA = 25°C
Figure 13. Δ fOSC vs. VIN, Referenced at VIN = 3 V
CH1 5.00V
CH2 100mV
M 400ns
A CH1
3.60V
1
2
VIN = 5.5V
LOAD = 5A
T
BW
BW
SW
VREG (AC-COUPLED)
Figure 14. VREG Output of Figure 54
TEMPERATURE (°C)
–40
–15
10
35
60
85
110
135
0.5990
0.5995
0.6000
0.6005
0.6010
0.6015
0.6020
0.6025
Figure 15. Feedback Voltage vs. Temperature, VIN = 12 V



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