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IRF7811 Datasheet(PDF) 10 Page - Analog Devices

Part No. IRF7811
Description  Synchronous Buck Controller
Download  40 Pages
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Maker  AD [Analog Devices]
Homepage  http://www.analog.com
Logo AD - Analog Devices

IRF7811 Datasheet(HTML) 10 Page - Analog Devices

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ADP1878/ADP1879
Data heet
Rev. A | Page 10 of 40
Figure 22. Feedback Voltage vs. Temperature
Figure 23. Switching Frequency vs. High Input Voltage, 300 kHz, ±10% of 12 V
Figure 24. Switching Frequency vs. High Input Voltage, 600 kHz, VOUT = 1.8 V,
VIN Range = 13 V to 16.5 V
Figure 25. Switching Frequency vs. High Input Voltage, 1.0 MHz,
VIN Range = 13 V to 16.5 V
Figure 26. Frequency vs. Load Current, 300 kHz, VOUT = 0.8 V
Figure 27. Frequency vs. Load Current, 300 kHz, VOUT = 1.8 V
601.0
600.5
600.0
599.5
599.0
598.5
598.0
597.5
597.0
–40.0
–7.5
25.0
57.5
90.0
122.5
TEMPERATURE (°C)
VREG = 5V, VIN = 13V
VREG = 5V, VIN = 20V
325
315
305
295
285
275
265
255
10.8 11.0 11.2 11.4 11.6 11.8 12.0 12.2 12.4 12.6 12.8 13.0 13.2
VIN (V)
+125°C
+25°C
–40°C
NO LOAD
650
600
550
500
450
400
13.0
13.4
13.8
14.2
14.6
15.0
15.4
15.8
16.2
VIN (V)
+125°C
+25°C
–40°C
NO LOAD
900
880
860
840
820
800
780
760
740
720
700
13.0
13.5
14.0
14.5
15.0
15.5
16.0
16.5
VIN (V)
+125°C
+25°C
–40°C
280
190
205
220
235
250
265
0
10,000
8000
6000
4000
2000
LOAD CURRENT (mA)
VIN = 13V
VIN = 20V
VIN = 16.5V
+125°C
+25°C
–40°C
330
240
250
260
270
280
290
300
310
320
0
15,000
12,000 13,500
10,500
9000
7500
6000
4500
3000
1500
LOAD CURRENT (mA)
VIN = 20V
VIN = 13V
VIN = 16.5V
+125°C
+25°C
–40°C


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