Preliminary datasheet, Typical performance characteristics, 5v, v – Diodes AP3421/A/B User Manual
Page 7: 25°c, unless otherwise specified, Figure 7. current limit 2 vs. temperature
Preliminary Datasheet
1.3MHz, Dual 1.0A Synchronous Step-down Converters AP3421/A/B
Feb. 2013 Rev. 1. 4 BCD Semiconductor Manufacturing Limited
7
Typical Performance Characteristics
V
IN
=V
E/S
=5V, V
O1
=2.5V, V
O2
=1.2V, L1=L2=3.3
µH, C1=C3=10µF, C2=C2’=10µF, T
A
=25°C, unless
otherwise specified.
Figure 4. SW1, SW2 Frequency vs. Input Voltage Figure 5. Supply Current vs. Temperature
Figure 6. Current Limit 1 vs. Temperature
Figure 7. Current Limit 2 vs. Temperature
3.4
3.6
3.8
4.0
4.2
4.4
4.6
4.8
5.0
5.2
5.4
5.6
5.8
200
400
600
800
1000
1200
S
W
1
, SW
2
F
requen
c
y
(kHz)
Input Voltage (V)
-60
-40
-20
0
20
40
60
80
100
120
140
0.48
0.50
0.52
0.54
0.56
0.58
0.60
0.62
0.64
0.66
V
FB1
=V
FB2
=1.2V
Suppl
y
Curren
t (
m
A)
Temperature (
o
C)
-60
-40
-20
0
20
40
60
80
100
120
140
0.6
0.8
1.0
1.2
1.4
1.6
1.8
2.0
Current L
im
it
1 (A)
Temperature (
O
C)
-60
-40
-20
0
20
40
60
80
100
120
140
0.6
0.8
1.0
1.2
1.4
1.6
1.8
2.0
Current Li
m
it
2 (A)
Temperature (
O
C)