Datasheet

Data Sheet ADP2370/ADP2371
Rev. C | Page 17 of 32
M100µs A CH1 2.50V
T 10.00%
09531-057
CH1 5.00V
B
W
CH3 500mA Ω
B
W
CH2 500mV
B
W
V
IN
V
OUT
INDUCTOR CURRENT
1
2
3
Figure 57. Startup, V
OUT
= 1.2 V, 800 mA, V
IN
= 5 V
M100µs A CH1
2.50V
T 10.00%
09531-058
CH1 5.00V
B
W
CH3 200mA Ω
B
W
CH2 2.00mV
B
W
V
IN
V
OUT
INDUCTOR CURRENT
1
2
3
Figure 58. Startup, V
OUT
= 5 V, 10 mA, V
IN
= 7 V
M100µs A CH1 2.50V
T 10.00%
09531-059
CH1 5.00V
B
W
CH3 500mA Ω
B
W
CH2 2.00mV
B
W
V
IN
V
OUT
INDUCTOR CURRENT
1
2
3
Figure 59. Startup, V
OUT
= 5 V, 800 mA, V
IN
= 7 V
0
50
100
150
200
250
3 5 7 9
11
13
15
PSM T
O PWM THRESHOLD (mA)
INPUT VO
LT
AGE (V)
–40°C
–5°C
+25°C
+85°C
+125°C
09531-060
Figure 60. PSM to PWM Mode Transition vs. Input Voltage,
Different Temperatures
800
850
900
950
1000
1050
1100
1150
1200
–60 –40 –20
0 20
40
60
80
100 120 140
OC THRESHOLD (mA)
TEMPER
ATURE (°C)
5.4
V
7.2V
12.0V
15.0V
09531-061
Figure 61. Overcurrent Limit vs. Temperature, V
OUT
= 5 V,
Different Input Voltages
0
0.02
0.04
0.05
0.01
0.03
0 100 200 300 400 500
600
700 800
RIPPLE VOLTAGE (V p-p)
LOAD CURRENT (mA)
3.2V
5.0V
9.0V
15V
09531-062
Figure 62. Output Ripple vs. Load Current, V
OUT
= 1.2 V, Different Input
Voltages, Automatic Mode