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KB3511 Datasheet(PDF) 13 Page - Kingbor Technology Co

Part # KB3511
Description  High Efficiency, Low Noise, Fast Transient Dual 800mA, 2.2MHz Step-Down DC/DC Converter
PDF  14 Pages
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Manufacturer  KINGBOR [Kingbor Technology Co]
Direct Link  http://www.kingbor.com
Logo KINGBOR - Kingbor Technology Co

KB3511 Datasheet(HTML) 13 Page - Kingbor Technology Co

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KB3511
Kingbor Technology Co.,Ltd
TEL:(86)0755-26508846 FAX:(86)0755-26509052
APPLICATIONS INFORMATION
TYPICAL APPLICATION
Low Ripple Buck Regulators Using Ceramic Capacitors
KB3511 Efficiency Curve
LOAD CURRENT (mA)
1
100
95
90
85
80
75
70
65
60
10
100
1000
3.3V
1.8V
VIN=3.6V
VOUT
91.5%
RESET
120ms
120ms
91.5%
Reset Timing Diagram
RUN1
VIN
VIN = 3.6V
TO 6.0V
VOUT2 = 3.3V
AT 800mA
VOUT1 = 1.8V
AT 800mA
RUN2
POR
SW2
VFB2
GND
VFB1
SW1
MODE/SYNC
C1
R5
100k
RESET
C4, 22pF
C5, 22pF
L1
2.2
µH
L2
2.2
µH
R4
680k
R2
300k
R1
150k
R3
150k
C3
4.7
µF
C2
4.7
µF
C1, C2, C3: 4.7uF 6.3V 0603
L1, L2: EVERCOM SD11-2R2 (3x3x1.2mm)
10
11
9
6
7
8
4
5
3
2
1
KB3511A
DFN3x3mm
RESET
4.7
µF



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