Datasheet

Data Sheet ADP5040
Rev. 0 | Page 13 of 40
2.0
1.8
0.2
0.4
0.6
0.8
1.6
1.4
1.2
1.0
0
2.4 3.93.42.9 4.4 4.9 5.4
OUTPUT CURRENT (A)
V
IN
(V)
V
OUT
= 1.2V
09665-033
Figure 33. Buck DC Current Capability vs. Input Voltage
2.80
2.82
2.84
2.86
2.88
2.90
2.92
2.94
0 1.21.00.2 0.4 0.6 0.8
FREQUENCY (MHz)
OUTPUT CURRENT (A)
–40°C
+25°C
+85°C
09665-034
Figure 34. Buck Switching Frequency vs. Output Current,
Across Temperature, V
OUT1
= 1.8 V, PWM Mode
CH2
CH3
CH4
A CH1 640mV 5µs/DIV
500MS/s
2.0ns/pt
SW
V
OUT
I
SW
200mA/DIV 1MΩ
B
W
20.0M
3.0V/DIV 1MΩ
B
W
20.0M
40.0mV/DIV 20.0M
2
3
4
09665-035
Figure 35. Typical Waveforms, V
OUT1
= 3.3 V, I
OUT1
= 30 mA, Auto Mode
CH2
CH3
CH4
A CH1 640mV 5µs/DIV
500MS/s
2.0ns/pt
SW
V
OUT
I
SW
200mA/DIV 1MΩ
B
W
20.0M
3.0V/DIV 1MΩ
B
W
20.0M
40.0mV/DIV 20.0M
2
3
4
09665-036
Figure 36. Typical Waveforms, V
OUT1
= 1.8 V, I
OUT1
= 30 mA, Auto Mode
CH2
CH3
CH4
A CH3 1.14V 5µs/DIV
500MS/s
2.0ns/pt
SW
V
OUT
I
SW
200mA/DIV 1MΩ
B
W
20.0M
3.0V/DIV 1MΩ
B
W
20.0M
40.0mV/DIV 20.0M
2
3
4
09665-037
Figure 37. Typical Waveforms, V
OUT1
= 1.2 V, I
OUT1
= 30 mA, Auto Mode
CH2
CH3
CH4
A CH1 640mV 200ns/DIV
500MS/s
2.0ns/pt
SW
V
OUT
I
SW
200mA/DIV 1MΩ
B
W
20.0M
3.0V/DIV 1MΩ
B
W
20.0M
10.0mV/DIV 20.0M
2
3
4
09665-038
Figure 38. Typical Waveforms, V
OUT1
= 3.3 V, I
OUT1
= 30 mA, PWM Mode