ADP1879 데이터 시트보기 (PDF) - Analog Devices
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ADP1879 Datasheet PDF : 40 Pages
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ADP1878/ADP1879
601.0
600.5
600.0
VREG = 5V, VIN = 20V
599.5
599.0
VREG = 5V, VIN = 13V
598.5
598.0
597.5
597.0
–40.0
–7.5
25.0
57.5
90.0
TEMPERATURE (°C)
Figure 22. Feedback Voltage vs. Temperature
122.5
325
+125°C
+25°C
315
–40°C
NO LOAD
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)
Figure 23. Switching Frequency vs. High Input Voltage, 300 kHz, ±10% of 12 V
650
+125°C
+25°C
–40°C
600
NO LOAD
550
500
450
400
13.0 13.4 13.8 14.2 14.6 15.0 15.4 15.8 16.2
VIN (V)
Figure 24. Switching Frequency vs. High Input Voltage, 600 kHz, VOUT = 1.8 V,
VIN Range = 13 V to 16.5 V
Data Sheet
900
+125°C
880
+25°C
–40°C
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)
Figure 25. Switching Frequency vs. High Input Voltage, 1.0 MHz,
VIN Range = 13 V to 16.5 V
280
VIN = 13V
+125°C
265
VIN = 20V
VIN = 16.5V
+25°C
–40°C
250
235
220
205
190
0
2000
4000
6000
8000
LOAD CURRENT (mA)
10,000
Figure 26. Frequency vs. Load Current, 300 kHz, VOUT = 0.8 V
330
VIN = 20V
+125°C
320
VIN = 13V
VIN = 16.5V
+25°C
–40°C
310
300
290
280
270
260
250
240
0
1500 3000 4500 6000 7500 9000 10,500 12,000 13,500 15,000
LOAD CURRENT (mA)
Figure 27. Frequency vs. Load Current, 300 kHz, VOUT = 1.8 V
Rev. B | Page 10 of 40
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