LM2853
Absolute Maximum Ratings
(Note 1)
If Military/Aerospace specified devices are required,
please contact the National Semiconductor Sales Office/
Distributors for availability and specifications.
AVIN, PVIN, EN, SNS, SW, SS
ESD Susceptibility (Note 2)
Power Dissipation
Storage Temperature Range
Maximum Junction Temp.
鈭?.3V to 6.0V
2kV
Internally Limited
鈭?5藲C to +150藲C
150藲C
14-Pin Exposed Pad TSSOP Package
Infrared (15 sec)
Vapor Phase (60 sec)
Soldering (10 sec)
220藲C
215藲C
260藲C
Operating Ratings
(Note 1)
PVIN to GND
AVIN to GND
Junction Temperature
1.5V to 5.5V
3.0V to 5.5V
鈭?0藲C to +125藲C
Specifications with standard typeface are for T
J
= 25藲C, and those in bold face
type apply over the full Junction Temperature Range (鈭?0藲C to 125藲C). Minimum and Maximum limits are guaranteed through
test, design or statistical correlation. Typical values represent the most likely parametric norm at T
J
= 25藲C and are provided
for reference purposes only. Unless otherwise specified AVIN = PVIN = 5V.
Symbol
SYSTEM PARAMETERS
V
OUT
Voltage Tolerance (Note 3)
V
OUT
= 0.8V option
V
OUT
= 1.0V option
V
OUT
= 1.2V option
V
OUT
= 1.5V option
V
OUT
= 1.8V option
V
OUT
= 2.5V option
V
OUT
= 3.0V option
V
OUT
= 3.3V option
鈭哣
OUT
/鈭咥VIN
Line Regulation (Note 3)
V
OUT
= 0.8V, 1.0V, 1.2V, 1.5V,
1.8V or 2.5V
3.0V
鈮?/div>
AVIN
鈮?/div>
5.5V
V
OUT
= 3.0V or 3.3V
3.5V
鈮?/div>
AVIN
鈮?/div>
5.5V
鈭哣
OUT
/鈭咺
O
V
ON
R
DS(ON)-P
R
DS(ON)-N
R
SS
I
CL
I
Q
I
SD
R
SNS
PWM
f
osc
D
range
V
IH
V
IL
I
EN
Switching Frequency
Duty Cycle Range
EN Pin Minimum High Input
EN Pin Maximum Low Input
EN Pin Pullup Current
EN = 0V
1.5
.
325
0
75
25
550
725
100
kHz
%
% of
AVIN
% of
AVIN
碌A
Load Regulation
UVLO Threshold (AVIN)
PFET On Resistance
NFET On Resistance
Soft-Start Resistance
Peak Current Limit Threshold
Operating Current
Shutdown Quiescent Current
Sense Pin Resistance
Non-switching
EN = 0V
3.6
Normal operation
Rising
Falling Hysteresis
Isw = 3A
Isw = 3A
50
0.782
0.9775
1.1730
1.4663
1.7595
2.4437
2.9325
3.2257
0.8
1.0
1.2
1.5
1.8
2.5
3.0
3.3
0.2
0.818
1.0225
1.227
1.5337
1.8405
2.5563
3.0675
3.3743
1.1
%
V
Parameter
Conditions
Min
Typ
Max
Units
Electrical Characteristics
0.2
2
2.47
155
40
32
450
5
0.85
12
432
1.1
%
mV/A
3.0
260
120
100
V
mV
m鈩?/div>
m鈩?/div>
k鈩?/div>
A
2
50
mA
碌A
k鈩?/div>
ENABLE CONTROL
(Note 4)
3
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LM2853MH-0.8 PDF文件相关型号
LM2853MH-1.0,LM2853MH-1.8,LM2853MH-3.3,LM2853MHX-0.8
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