Datasheet

Data Sheet ADP5040
Rev. 0 | Page 15 of 40
CH1
CH2
CH3
A CH3 4.48V
SW
V
OUT
V
IN
3.0V/DIV
20.0mV/DIV
1MΩ
B
W
20.0M
1.0V/DIV
2
1
3
B
W
400M
B
W
20.0M
200µs/DIV
1.0MS/s
1.0µs/pt
09665-045
Figure 45. Buck Response to Line Transient, Input Voltage from 4.5 V to
5.0 V, V
OUT1
= 1.8 V, PWM Mode
CH1
CH2
CH3
A CH3 4.48V
SW
V
OUT
V
IN
3.0V/DIV
50.0mV/DIV
1MΩ
B
W
20.0M
1.0V/DIV
2
1
3
B
W
20.0M
B
W
20.0M
200µs/DIV
1.0MS/s
1.0µs/pt
09665-046
Figure 46. Buck Response to Line Transient, Input Voltage from 4.5 V to
5.0 V, V
OUT1
= 1.2 V, PWM Mode
CH1
CH2
CH3
A CH3 150mA
V
OUT
SW
4.0V/DIV
100mV/DIV
1MΩ
B
W
20.0M
1MΩ
B
W
20.0M
300mA/DIV
2
1
3
B
W
20.0M
500µs/DIV
20.0MS/s
50.0ns/pt
I
OUT
09665-047
Figure 47. Buck Response to Load Transient, I
OUT1
= 20 mA to 200 mA,
V
OUT1
= 3.3 V, Auto Mode
CH1
CH2
CH3
A CH3 150mA
V
OUT
SW
4.0V/DIV
100mV/DIV
1MΩ
B
W
20.0M
1MΩ
B
W
20.0M
300mA/DIV
2
1
3
B
W
20.0M
500µs/DIV
20.0MS/s
50.0ns/pt
I
OUT
09665-048
Figure 48. Buck Response to Load Transient, I
OUT1
= 50 mA to 500 mA,
V
OUT1
= 3.3 V, Auto Mode
CH1
CH2
CH3
A CH3 150mA
V
OUT
SW
4.0V/DIV
100mV/DIV
1MΩ
B
W
20.0M
1MΩ
B
W
20.0M
300mA/DIV
2
1
3
B
W
20.0M
500µs/DIV
20.0MS/s
50.0ns/pt
I
OUT
09665-049
Figure 49. Buck Response to Load Transient, I
OUT1
= 20 mA to 200 mA,
V
OUT1
= 1.8 V, Auto Mode
CH1
CH2
CH3
A CH3 150mA
2
3
V
OUT
SW
4.0V/DIV
100mV/DIV
1MΩ
B
W
20.0M
1MΩ
B
W
20.0M
300mA/DIV
1
B
W
20.0M
500µs/DIV
20.0MS/s
50.0ns/pt
I
OUT
09665-050
Figure 50. Buck Response to Load Transient, I
OUT1
= 50 mA to 500 mA,
V
OUT1
= 1.8 V, Auto Mode