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KB3511 Datasheet(PDF) 2 Page - Kingbor Technology Co

Part # KB3511
Description  High Efficiency, Low Noise, Fast Transient Dual 800mA, 2.2MHz Step-Down DC/DC Converter
Download  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) 2 Page - Kingbor Technology Co

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Input Supply Voltage .................................. – 0.3V to 6.5V
RUN, VFB Voltages ..................................... – 0.3V to VIN
SW Voltage .................................. – 0.3V to (VIN + 0.3V)
P-Channel Switch Source Current (DC) ............. 800mA
N-Channel Switch Sink Current (DC) ................. 800mA
(Note 1)
Peak SW Sink and Source Current ........................ 1.3A
Operating Temperature Range (Note 2) .. – 40
°C to 85°C
Junction Temperature (Note 3) ............................ 125
°C
Storage Temperature Range ................ – 65
°C to 150°C
Lead Temperature (Soldering, 10 sec)................. 300
°C
The
denotes specifications which apply over the full operating temperature range, otherwise specifications are TA = 25°C.
VIN = 3.6V unless otherwise specified.
KB3511
Kingbor Technology Co.,Ltd
TEL:(86)0755-26508846 FAX:(86)0755-26509052
ABSOLUTE MAXIMUM RATINGS
PACkAGE/ORDER INFORMATION
ELECTRICAL CHARACTERISTICS
TOP VIEW
DD PACKAGE
10-LEAD (3mm
× 3mm) PLASTIC DFN
EXPOSED PAD IS PGND (PIN 11)
MUST BE CONNECTED TO GND
10
11
9
6
7
8
4
5
3
2
1
VFB2
RUN2
POR
SW2
MODE/
SYNC
VFB1
RUN1
VIN
SW1
GND
ORDER PART
NUMBER
DD PART MARKING
TJMAX = 125
°C, θJA = 45°C/W, θJC = 10°C/W
KB3511A
ORDER PART
NUMBER
DD PART MARKING
KB3511B
TOP VIEW
DD PACKAGE
10-LEAD (3mm
× 3mm) PLASTIC DFN
EXPOSED PAD IS PGND (PIN 11)
MUST BE CONNECTED TO GND
10
11
9
6
7
8
4
5
3
2
1
VOUT2
RUN2
NC
SW2
MODE/
SYNC
VOUT1
RUN1
VIN
SW1
GND
TJMAX = 125
°C, θJA = 45°C/W, θJC = 10°C/W
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
VIN
Operating Voltage Range
2.5
6.5
V
IFB
Feedback Pin Input Current
30
nA
VFB
Feedback Voltage (Note 3)
0
°C ≤ TA ≤ 85°C
0.588
0.6
0.612
V
–40
°C ≤ TA ≤ 85°C
0.585
0.6
0.612
V
∆VLINE REG
Reference Voltage Line Regulation
VIN = 2.5V to 5.5V (Note 3)
0.3
0.5
%/V
∆VLOAD REG
Output Voltage Load Regulation
(Note 3)
0.5
%
IS
Input DC Supply Current
Active Mode
VFB1 = VFB2 = 0.6V
50
100
µA
Shutdown
RUN = 0V, VIN = 5.5V, MODE/SYNC = 0V
0.1
1
µA
fOSC
Oscillator Frequency
VFB = 0.6V
1.6
2.2
2.8
MHz
fSYNC
Synchronization Frequency
2.2
MHz
ILIM
Peak Switch Current Limit
VIN = 3V, FBK = 0.5V, Duty Cycle <35%
0.85
1
1.25
A
RDS(ON)
Top Switch On-Resistance
VIN = 3.6V (Note 6)
0.35
0.45
Bottom Switch On-Resistance
VIN = 3.6V (Note 6)
0.30
0.45
ISW(LKG)
Switch Leakage Current
VIN = 5V, VRUN = 0V, VFB = 0V
0.01
1
µA
V
= 1.5V
OUT1
V
= 2.2V
OUT2
V
=
FB1
V
= 0.6V
FB2


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