Kingbor Technology Co.,Ltd
TEL:(86)0755-26508846 FAX:(86)0755-26509052
kB3440
ABSOLUTE MAXIMUM RATINGS
(Note 1)
VIN, VOUT Voltage........................................ –0.3V to 6V
SW1, SW2 Voltage ..................................... –0.3V to 6V
VC, RT, FB, SHDN/SS,
Operating Temperature Range (Note 2) .. –40°C to 85°C
Storage Temperature Range ................. –65°C to 125°C
Lead Temperature (Soldering, 10 sec).................. 300°C
MODE/SYNC Voltage .................................. –0.3V to 6V
PACAGE/ORDER INFORMATION
TOP VIEW
ORDER PART
ORDER PART
TOP VIEW
R
1
2
3
4
5
10
9
V
NUMBER
T
C
NUMBER
R
1
2
3
4
5
10
9
V
C
T
MODE/SYNC
SW1
FB
MODE/SYNC
SW1
FB
8
SHDN/SS
V
V
SW2
GND
7
6
IN
OUT
11
kB3440EDD
8
SHDN/SS
kB3440EMS
SW2
7
V
V
IN
MS PACKAGE
10-LEAD PLASTIC MSOP
GND
6
OUT
DD
MS
DD PACKAGE
PART MARKING
PART MARKING
TJMAX = 125°C,
10-LEAD (3mm × 3mm) PLASTIC DFN
EXPOSED PAD (PIN 11) IS GND
eJA = 130°C/ W 1 LAYER BOARD
eJA = 100°C/ W 4 LAYER BOARD
eJC = 45°C/ W
MUST BE SOLDERED TO PCB
XXXX
HX-AA
TJMAX = 125°C, eJA = 43°C/ W, eJC = 3°C/ W
The ● denotes specifications that apply over the full operating temperature
ELECTRICAL CHARACTERISTICS
range, otherwise specifications are at TA = 25°C. VIN = VOUT = 3.6V, RT = 60k, unless otherwise noted.
PARAMETER
CONDITIONS
MIN
TYP
MAX
2.5
5.5
5.5
1.244
50
UNITS
V
Input Start-Up Voltage
Input Operating Range
Output Voltage Adjust Range
Feedback Voltage
●
●
●
●
2.4
2.5
2.5
V
V
1.196
1.22
1
V
Feedback Input Current
Quiescent Current, Burst Mode Operation
Quiescent Current, Shutdown
Quiescent Current, Active
NMOS Switch Leakage
PMOS Switch Leakage
NMOS Switch On Resistance
PMOS Switch On Resistance
Input Current Limit
V
FB
= 1.22V
nA
µ A
µ A
µ A
µ A
µ A
1
V = 0V, MODE/SYNC = 3V (Note 3)
C
40
50
SHDN = 0V, Not Including Switch Leakage
0.1
1
V = 0V, MODE/SYNC = 0V (Note 3)
C
2800
0.1
4000
5
Switches B and C
Switches A and D
Switches B and C
Switches A and D
0.1
10
0.19
0.22
1
●
1
A
Maximum Duty Cycle
Boost (% Switch C On)
Buck (% Switch A On)
●
●
55
75
1
%
%
100
Minimum Duty Cycle
Frequency Accuracy
●
●
0
1.2
2
%
MHz
V
0.8
0.4
MODE/SYNC Threshold
MODE/SYNC Input Current
Error Amp AVOL
V
= 5.5V
0.01
90
1
µ A
dB
MODE/SYNC
Error Amp Source Current
Error Amp Sink Current
15
µ A
µ A
380
2
KINGBOR [ KINGBOR TECHNOLOGY CO ]
