BL3406B
1.5 MHz, 800mA Synchronous Buck Converter
Typical Performance Characteristics
(Test Figure 1 above unless otherwise specified)
Efficiency vs. Output Current
2.2
Output Voltage vs. Load Current
2.1
2.0
90
80
V
OUT
=1.8V
L=2.2uH
V
IN
=3.6V
T
A
=25
°
C
70
Output Voltage(V)
Vin=2.7V
Vin=3.6V
Vin=4.2V
1
10
100
1000
Efficiency(%)
1.9
1.8
1.7
1.6
1.5
1.4
1.3
0
200
400
600
800
1000
1200
60
50
40
30
20
0.1
Output Current(mA)
Load Current(mA)
Reference Voltage vs. Temperature
0.606
1.820
Output Voltage vs. Input Voltage
I
LOAD
=10mA
I
LOAD
=100mA
I
LOAD
=600mA
V
IN
=3.6V
1.815
Reference Voltage(V)
0.605
1.810
1.805
1.800
1.795
0.604
0.603
V
OUT
(V)
-25
0
25
50
75
100
125
1.790
1.785
0.602
-50
1.780
2.7
3.0
3.3
3.6
3.9
4.2
4.5
4.8
5.1
5.4
5.7
Temperature
(°
C
)
V
IN
(V)
Supply Current vs. Supply Voltage
Start_up from Shutdown
245
240
Dynamic Supply Current(uA)
235
230
225
220
215
210
205
200
195
2
V
OUT
=1.8V
I
LOAD
=0A
T
A
=25
°
C
3
4
5
6
Supply Voltage(V)
PPMIC BU
BL3406B Rev 1.5
10/2009
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