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LM2743MTCX データシート(PDF) 3 Page - National Semiconductor (TI)

[Old version datasheet] Texas Instruments acquired National semiconductor.
部品番号 LM2743MTCX
部品情報  N-Channel FET Synchronous Buck Regulator Controller for Conversion from 3.3V
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メーカー  NSC [National Semiconductor (TI)]
ホームページ  http://www.national.com
Logo NSC - National Semiconductor (TI)

LM2743MTCX データシート(HTML) 3 Page - National Semiconductor (TI)

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Absolute Maximum Ratings (Note 1)
If Military/Aerospace specified devices are required,
please contact the National Semiconductor Sales Office/
Distributors for availability and specifications.
V
CC
-0.3 to 7V
BOOT Voltage
-0.3 to 21V
All other pins
-0.3 to V
CC + 0.3V
Junction Temperature
150˚C
Storage Temperature
−65˚C to 150˚C
Soldering Information
Lead Temperature
(soldering, 10sec)
260˚C
Infrared or Convection (20sec)
235˚C
ESD Rating (Note 3)
2 kV
Operating Ratings
Supply Voltage Range (V
CC)
3Vto6V
Junction Temperature Range
(T
J)
−40˚C to +125˚C
Thermal Resistance (
θ
JA)
155˚C/W
Electrical Characteristics
V
CC = 3.3V unless otherwise indicated. Typicals and limits appearing in plain type apply for TA=TJ= 25˚C. Limits appearing in
boldface type apply over full Operating Temperature Range. Datasheet min/max specification limits are guaranteed by design,
test, or statistical analysis.
Symbol
Parameter
Conditions
Min
Typ
Max
Units
V
FB
FB Pin Voltage
V
CC =3Vto6V
0.588
0.6
0.612
V
V
ON
UVLO Thresholds
Rising
Falling
2.76
2.42
V
I
Q_VCC
Operating V
CC Current
V
CC = 3.3V, VSD = 3.3V
Fsw = 600kHz
1.0
1.5
2.1
mA
V
CC = 5V, VSD = 3.3V
Fsw = 600kHz
1.0
1.7
2.1
Shutdown V
CC Current
V
CC = 3.3V, VSD = 0V
110
185
µA
t
PWGD1
PWGD Pin Response Time
V
FB Rising
6
µs
t
PWGD2
PWGD Pin Response Time
V
FB Falling
6
µs
I
SS-ON
SS Pin Source Current
V
SS =0V
7
10
14
µA
I
SS-OC
SS Pin Sink Current During
Over Current
V
SS = 2.5V
90
µA
I
SEN-TH
I
SEN Pin Source Current Trip
Point
25
40
55
µA
ERROR AMPLIFIER
GBW
Error Amplifier Unity Gain
Bandwidth
9
MHz
G
Error Amplifier DC Gain
106
dB
SR
Error Amplifier Slew Rate
3.2
V/µs
I
EAO
EAO Pin Current Sourcing and
Sinking Capability
V
EAO = 1.5, FB = 0.55V
V
EAO = 1.5, FB = 0.65V
2.6
9.2
mA
V
EA
Error Amplifier Output Voltage
Minimum
1
V
Maximum
2
V
www.national.com
3


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