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ML3440 Datasheet(PDF) 4 Page - List of Unclassifed Manufacturers

No. de pieza ML3440
Descripción Electrónicos  Micropower Synchronous Buck-Boost DC/DC Converter
Download  13 Pages
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Fabricante Electrónico  ETC1 [List of Unclassifed Manufacturers]
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ML3440 Datasheet(HTML) 4 Page - List of Unclassifed Manufacturers

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4/13
Rev. B, Sep 2005
Absolute Maximum Ratings (Ta=25
oC, VIN =3.6V, RT=60K, unless otherwise noted)
Parameter
Rating
Unit
VIN, VOUT Voltage
-0.3
~ 6
V
SW1, SW2 Voltage
-0.3
~ 6
V
Vc, RT, FB Voltage
-0.3
~ 6
V
SHDN/SS Voltage
-0.3
~ 6
V
MODES/SYNC Voltage
-0.3
~ 6
V
Operating temperature Range
0℃to 70℃
Storage Temperature Range
-65 ℃to 125℃
Lead TEMPERATURE (Soldering, 10sec)
300℃
Electrical Characteristics (Ta=25
oC, VIN =3.6V, RT=60K, unless otherwise noted)
Parameter
Condition
Min
Typ.
Max
Unit
Input Start-Up voltage
*
2.4
2.5
V
Input Operating Range
*
2.5
5.5
V
Output Voltage Adjust Range
*
2.5
5.5
V
Feedback voltage
*
1.196
1.22
1.244
V
Feedback Input current
VFB=1.22V
1
50
nA
Quiescent
Current,
Burst
Mode
Operation.
VC=0V, MODE/SYNC=3V (Note 1)
25
40
uA
Quiescent current, Shutdown
SHDN=0V, Not Including Switch Leakage
0.1
1
uA
Quiescent Current, Active
Vc=0V, MODE/SYNC=0V,
600
1000
uA
NMOS Switch Leakage
Switches B and C
0.1
5
uA
PMOS Switch Leakage
Switches A and D
0.1
10
uA
NMOS Switch On Resistance
Switches B and C
0.19
PMOS Switch On Resistance
Switches A and D
0.22
Input current Limit
*
1
A
Maximum Duty Cycle
Boost (% Switch C on)
Buck (% Switch A on)
*
*
5.5
100
75
%
%
Minimum Duty Cycle
*
0
%
Frequency Accuracy
*
0.8
1
1.2
MHz
MODE/SYNC Threshold
0.4
2
V
MODE/ SYNC Input Current
VMODE/SYNC=5.5V
0.01
1
uA
Error Amp AVOL
90
dB
Error Amp Source Current
15
uA
Error Amp Sink Current
380
uA
SHDN/SS Threshold
When IC is Enabled
When EA is at Maximum Boost Duty Cycle
*
0.4
1
2.2
1.5
V
V
SHDN/SS Input Current
VSHDN = 5.5V
0.01
1
uA
The
* denotes specifications that apply over the full operating temperature range
Note 1: Current measurements are performed when the outputs are not switching.


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