Datasheet

Data Sheet ADP2164
Rev. A | Page 9 of 20
650
640
630
620
610
600
590
580
570
560
550
FREQUENCY (kHz)
09944-016
2.7 3.1 3.5 3.9 4.3 4.7 5.1 5.5 5.9 6.3
V
IN
(V)
T
J
= –40°C
T
J
= +25°C
T
J
= +125°C
Figure 16. Switching Frequency vs. V
IN
, f
S
= 600 kHz (RT = 91 kΩ)
6.8
6.6
6.4
6.2
6.0
5.8
5.6
5.4
5.2
–40 –20 0 20 40 60 80 100 120
TEMPERATURE (°C)
PEAK CURRENT LIMIT (A)
09944-017
Figure 17. Peak Current Limit vs. Temperature, V
IN
= 3.3 V
09944-018
CH1 500mV CH2 5.00V
CH3 5.00V CH4 2.00A Ω
M 1.00ms A CH3 2.50V
1
3
4
2
T 20.20%
T
EN
PGOOD
I
L
V
OUT
Figure 18. Soft Start with Full Load, V
IN
= 5 V, V
OUT
= 1.2 V, f
S
= 1.2 MHz
2.70
2.68
2.66
2.64
2.62
2.60
2.58
2.56
2.54
2.52
2.50
2.48
2.46
2.44
2.42
2.40
–40 –20 0 20 40 60 80 100 120
TEMPERATURE (°C)
UVLO THRESHOLD (V)
09944-019
RISING
FALLING
Figure 19. UVLO Threshold vs. Temperature, V
IN
= 3.3 V
7.0
6.8
6.6
6.4
6.2
6.0
5.8
5.6
5.4
2.7 3.1 3.5 3.9 4.3 4.7 5.1 5.5 5.9 6.3
V
IN
(V)
09944-020
PEAK CURRENT LIMIT (A)
Figure 20. Peak Current Limit vs. V
IN
, T
J
= 25°C
09944-021
CH1 500mV CH2 5.00V
CH3 5.00V CH4 2.00A Ω
M 1.00ms A CH3 2.50V
1
3
4
2
T 20.20%
T
EN
PGOOD
I
L
V
OUT
Figure 21. Soft Start with Precharged Output Voltage, V
IN
= 5 V, f
S
= 1.2 MHz