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KB3440 Datasheet(PDF) 20 Page - Kingbor Technology Co

Part # KB3440
Description  Micropower Synchronous Buck-Boost DC/DC Converter
PDF  20 Pages
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Manufacturer  KINGBOR [Kingbor Technology Co]
Direct Link  http://www.kingbor.com
Logo KINGBOR - Kingbor Technology Co

KB3440 Datasheet(HTML) 20 Page - Kingbor Technology Co

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20 Kingbor Technology
TEL:(86)0755-26508846 FAX:(86)0755-26509052 www.kingbor.com
Efficiency
OUTPUT CURRENT (mA)
100
90
80
70
60
50
40
30
20
10
0
0.1
10
100
1000
1.0
VIN = 4.2V
VIN = 3.3V
Burst Mode
OPERATION
Li-Ion to 3.3V at 600mA Buck-Boost Converter
SW1
VIN
SHDN/SS
MODE/SYNC
RT
SW2
VOUT
FB
VC
GND
3
7
8
2
1
4
6
9
10
5
kB3440
L1
10
µH
R1
340k
R2
200k
R3
15k
RT
60.4k
C1: TAIYO YUDEN JMK212BJ106MG
C2: TAIYO YUDEN JMK325BJ226MM
L1: SUMIDA CDRH4D28-100
*1 = Burst Mode OPERATION
0 = FIXED FREQUENCY
C1
10
µF
Li-Ion
VIN = 2.8V TO 4.2V
*
+
C5 300pF
C2
22
µF
VOUT
3.3V
600mA
220pF
2.2k
kB3440
Kingbor Technology Co.,Ltd
TEL:(86)0755-26508846 FAX:(86)0755-26509052
TYPICAL APPLICATION



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