Preliminary datasheet, Typical performance characteristics, Figure 4. supply current vs. input voltage – Diodes AP3433 User Manual
Page 7: Figure 5. supply current vs. temperature, Figure 6. efficiency vs. output current, Figure 7.uvlo threshold vs. temperature
Preliminary Datasheet
3A, 2MHz High Performance Synchronous Buck Converter AP3433
Jul. 2012 Rev. 1. 1 BCD Semiconductor Manufacturing Limited
7
Typical Performance Characteristics
Figure 4. Supply Current vs. Input Voltage
Figure 5. Supply Current vs. Temperature
Figure 6. Efficiency vs. Output Current
Figure 7.UVLO Threshold vs. Temperature
2.7
3.0
3.3
3.6
3.9
4.2
4.5
4.8
5.1
5.4
5.7
360
365
370
375
380
385
390
395
400
405
410
415
420
425
430
Suppl
y
Current (
µ
A)
Input Voltage (V)
-50
-25
0
25
50
75
100
125
150
370
380
390
400
410
420
430
440
450
460
470
V
IN
=5V
V
FB
=0.9V
Sup
p
ly Cur
rent
(
µ
A)
Temperature (
o
C)
0
300
600
900
1200
1500
1800
2100
2400
2700
3000
30
35
40
45
50
55
60
65
70
75
80
85
90
95
100
Ef
ficiency (%)
Output Current (mA)
V
OUT
=1.8V
V
IN
=3.3V
V
IN
=5V
-50
-25
0
25
50
75
100
125
150
2.10
2.15
2.20
2.25
2.30
2.35
2.40
2.45
2.50
2.55
2.60
U
V
LO
T
h
res
hold
(V
)
Temperature (
o
C)
Start Switching
Stop Switching