LTC3406AIS5-TRPBF View Datasheet(PDF) - Linear Technology
Part Name
Description
MFG CO.
'LTC3406AIS5-TRPBF' PDF : 16 Pages View PDF
LTC3406A
APPLICATIONS INFORMATION
For the feedback resistors, choose R1 = 316k. R2 can
then be calculated from Equation (2) to be:
R2 =
VOUT
0.6
1
R1= 1000k
(4)
Figure 5 shows the complete circuit along with its ef-
ficiency curve.
100
90
80
70
60
50
40
30
20
10
0
0.1
VIN
2.7V TO 4.2V
CIN†
4.7μF
CER
4
VIN
3
SW
LTC3406A
1
RUN
5
VFB
GND
2
2.2μH*
22pF
1M
316k
3406A F05a
* MURATA LQH32CN2R2M33
** TAIYO YUDEN JMK316BJ106ML
† TAIYO YUDEN LMK212BJ475MG
VOUT
2.5V
600mA
COUT**
10μF
CER
VIN = 2.7V
VIN = 3.6V
VIN = 4.2V
1
10
100
OUTPUT CURRENT (mA)
1000
3406A F05b
VOUT
100mV/DIV
IL
500mA/DIV
ILOAD
500mA/DIV
VIN = 3.6V 20μs/DIV
VOUT = 2.5V
ILOAD = 300mA TO 600mA
Figure 5.
3406A F05d
3406afa
13
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