Datasheet

ADP2138/ADP2139 Data Sheet
Rev. C | Page 8 of 20
2.3 2.8 3.3 3.8 4.3 4.8 5.3
INPUT VOLTAGE (V)
350
300
250
200
150
100
50
0
R
DSON
(mΩ)
09496-036
–40°C
+25°C
+125°C
Figure 15. R
DSON
PFET vs. Input Voltage, Across Temperature
2.3 2.8 3.3 3.8 4.3 4.8 5.3
INPUT VOLTAGE (V)
250
200
150
100
50
0
R
DSON
(mΩ)
09496-037
–40°C
+25°C
+125°C
Figure 16. R
DSON
NFET vs. Input Voltage, Across Temperature
09496-014
T
4
4
1
1
2
M 40.0µs A CH2 215mA
T 26.00%
CH1 100mV
CH4 5.00V
CH2 250mA Ω
SW
V
OUT
I
OUT
Figure 17. Response to Load Transient, 150 mA to 500 mA,
V
OUT
= 1.8 V, PWM Mode
09496-015
T
4
4
1
1
2
M 40.0µs A CH2 215mA
T 26.00%
CH1 100mV
CH4 5.00V
CH2 250mA Ω
SW
V
OUT
I
OUT
Figure 18. Response to Load Transient, 50 mA to 500 mA,
V
OUT
= 1.8 V, Automatic Mode
09496-016
T
4
4
1
1
2
M 40.0µs A CH2 215mA
T 26.00%
CH1 100mV
CH4 5.00V
CH2 250mA Ω
SW
V
OUT
I
OUT
Figure 19. Response to Load Transient, 150 mA to 500 mA,
V
OUT
= 0.8 V, PWM Mode
09496-017
CH1 100mV
CH4 5.00V
CH2 100mA Ω M 40.0µs A CH2 134mA
1
4
T
26.00%
T
1
4
2
SW
V
OUT
I
OUT
Figure 20. Response to Load Transient, 50 mA to 200 mA, V
OUT
= 0.8 V,
Automatic Mode