Datasheet

Data Sheet ADP2138/ADP2139
Rev. C | Page 9 of 20
09496-018
T
4
4
1
1
2
M 40.0µs A CH2 275mA
T 26.00%
CH1 100mV
CH4 5.00V
CH2 250mA Ω
SW
V
OUT
I
OUT
Figure 21. Response to Load Transient, 150 mA to 500 mA,
V
OUT
= 3.3 V, PWM Mode
09496-019
T
4
4
1
1
2
M 40.0µs A CH2 114mA
T 26.00%
CH1 100mV
CH4 5.00V
CH2 100mA Ω
SW
V
OUT
I
OUT
Figure 22. Response to Load Transient, 50 mA to 200 mA,
V
OUT
= 3.3 V, Automatic Mode
09496-020
CH1 20.0mV
CH3 1.00V
M 40.0µs A CH3 4.50V
T
1
3
T –84.0000µs
V
OUT
V
IN
Figure 23. Response to Line Transient, V
OUT
= 3.3 V, V
IN
= 4.0 V to 4.8 V,
PWM Mode
09496-021
CH1 20.0mV
CH3 1.00V
M 40.0µs A CH3 4.50V
T
1
3
T –84.0000µs
V
OUT
V
IN
Figure 24. Response to Line Transient, V
OUT
= 0.8 V,
V
IN
= 4.0 V to 4.8 V, PWM Mode
09496-033
CH1 20.0mV
CH3 1.00V
M 40.0µs A CH3 4.50V
T
1
3
T –84.0000µs
V
OUT
V
IN
Figure 25. Response to Line Transient, V
OUT
= 1.8 V,
V
IN
= 4.0 V to 4.8 V, PWM Mode
09496-022
CH1 2.00V Ω
CH4 5.00V
CH2 500mA Ω M 40.0µs A CH3 2.50V
T
10.40%
CH3 5.00V
T
4
1
1
1
3
2
SW
V
OUT
I
IN
E
N
Figure 26. Startup, V
OUT
= 1.8 V, I
OUT
= 10 mA