Kingbor Technology Co.,Ltd
TEL:(86)0755-26508846 FAX:(86)0755-26509052
kB3440
ABSOLUTE MAXIMUM RATINGS
(Note 1)
V
IN
, V
OUT
Voltage........................................ – 0.3V to 6V
SW1, SW2 Voltage ..................................... – 0.3V to 6V
V
C
, R
T
, FB, SHDN/SS,
MODE/SYNC Voltage .................................. – 0.3V to 6V
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
PACAGE/ORDER INFORMATION
TOP VIEW
R
T
MODE/SYNC
SW1
SW2
GND
1
2
3
4
5
11
10 V
C
9 FB
8 SHDN/SS
7 V
IN
6 V
OUT
ORDER PART
NUMBER
kB3440EDD
DD
PART MARKING
XXXX
TOP VIEW
R
T
MODE/SYNC
SW1
SW2
GND
1
2
3
4
5
10
9
8
7
6
V
C
FB
SHDN/SS
V
IN
V
OUT
ORDER PART
NUMBER
kB3440EMS
MS
PART MARKING
HX-AA
MS PACKAGE
10-LEAD PLASTIC MSOP
DD PACKAGE
10-LEAD (3mm
×
3mm) PLASTIC DFN
EXPOSED PAD (PIN 11) IS GND
MUST BE SOLDERED TO PCB
T
JMAX
= 125°C,
JA
= 43°C/ W,
JC
= 3°C/ W
T
JMAX
= 125°C,
= 130°C/ W 1 LAYER BOARD
JA
JA
= 100°C/ W 4 LAYER BOARD
JC
= 45°C/ W
●
denotes specifications that apply over
ELECTRICAL CHARACTERISTICS
The3.6V, R = 60k, unless otherwise noted. the full operating temperature
range, otherwise specifications are at T = 25°C. V = V
=
A
IN
OUT
T
PARAMETER
Input Start-Up Voltage
Input Operating Range
Output Voltage Adjust Range
Feedback Voltage
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
Maximum Duty Cycle
Minimum Duty Cycle
Frequency Accuracy
MODE/SYNC Threshold
MODE/SYNC Input Current
Error Amp AVOL
Error Amp Source Current
Error Amp Sink Current
CONDITIONS
●
●
●
●
MIN
2.5
2.5
1.196
TYP
2.4
MAX
2.5
5.5
5.5
UNITS
V
V
V
V
nA
µ
A
µ
A
µ
A
µ
A
µ
A
1.22
1
40
0.1
2800
0.1
0.1
0.19
0.22
1.244
50
50
1
4000
5
10
V
FB
= 1.22V
V
C
= 0V, MODE/SYNC = 3V (Note 3)
SHDN = 0V, Not Including Switch Leakage
V
C
= 0V, MODE/SYNC = 0V (Note 3)
Switches B and C
Switches A and D
Switches B and C
Switches A and D
●
1
55
100
0.8
0.4
75
0
1
0.01
90
15
380
1.2
2
1
A
%
%
%
MHz
V
µ
A
dB
µ
A
µ
A
Boost (% Switch C On)
Buck (% Switch A On)
●
●
●
●
V
MODE/SYNC
= 5.5V
2
KINGBOR [ KINGBOR TECHNOLOGY CO ]
