ADP1883 Analog Devices, ADP1883 Datasheet - Page 10

• Manufacturer Part Number: ADP1883
• Description: Synchronous Current-Mode Buck Controller with Constant On-time, 0.8 V Reference Voltage, and Power Saving Mode
• Manufacturer: Analog Devices

ADP1882/ADP1883
Figure 23. Switching Frequency vs. High Input Voltage, 300 kHz, ±10% of 12 V
Figure 24. Switching Frequency vs. High Input Voltage, 600 kHz, V
0.804
0.803
0.802
0.801
0.800
0.799
0.798
0.797
0.796
650
600
550
500
450
400
335
325
315
305
295
285
275
265
255
245
235
225
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
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
–40.0
V
Figure 22. Feedback Voltage vs. Temperature
V
OUT
DD
V
V
V
DD
DD
DD
= 3.6V
= 1.8V
+125°C
+25°C
–40°C
+125°C
+25°C
–40°C
–7.5
= 2.7V, V
= 3.6V, V
= 5.5V, V
IN
IN
IN
TEMPERATURE (°C)
±10% of 12 V
= 2.7/3.6V
= 3.6V TO 16.5V
= 5.5/13V/16.5V
V
V
25.0
DD
DD
V
V
= 5.5V
= 5.5V
IN
+125°C
+25°C
–40°C
IN
+125°C
+25°C
–40°C
(V)
(V)
57.5
90.0
OUT
122.5
= 1.8 V,
Rev. 0 | Page 10 of 40
Figure 25. Switching Frequency vs. High Input Voltage, 1.0 MHz, ±10% of 12 V
1000
355
340
325
310
295
280
265
250
235
220
205
190
380
370
360
350
340
330
320
310
300
290
280
270
260
950
900
850
800
750
700
650
600
550
Figure 26. Frequency vs. Load Current, 300 kHz, V
Figure 27. Frequency vs. Load Current, 300 kHz, V
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
0
0
V
2k
V
IN
2k
IN
= 5.5V
= 3.6V
+125°C
+25°C
–40°C
4k
+125°C
+25°C
–40°C
V
4k
IN
= 5.5V
6k
+125°C
+25°C
–40°C
LOAD CURRENT (mA)
LOAD CURRENT (mA)
6k
V
8k
IN
V
= 13V
IN
V
= 5.5V
+125°C
+25°C
–40°C
V
10k
IN
8k
IN
+125°C
+25°C
–40°C
(V)
= 13V
12k
+125°C
+25°C
–40°C
10k
V
IN
14k
= 16.5V
12k
+125°C
+25°C
–40°C
V
16k
IN
OUT
OUT
= 16.5V
14k
+125°C
+25°C
–40°C
= 0.8 V
= 1.8 V
18k
16k
20k