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LM2852XMXAX-1.5 数据表(PDF) 5 Page - National Semiconductor (TI)

[Old version datasheet] Texas Instruments acquired National semiconductor.
部件名 LM2852XMXAX-1.5
功能描述  2A 500/1500kHz SIMPLE SYNCHRONOUS Buck Regulator
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制造商  NSC [National Semiconductor (TI)]
网页  http://www.national.com
标志 NSC - National Semiconductor (TI)

LM2852XMXAX-1.5 数据表(HTML) 5 Page - National Semiconductor (TI)

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Electrical Characteristics AVIN = PVIN = 5V unless otherwise indicated under the Conditions column.
Typicals and limits appearing in plain type apply for T
A =TJ = +25˚C. Limits appearing in boldface type apply over full
Operating Junction Temperature Range (−40˚C to +125˚C). Datasheet min/max specification limits are guaranteed by design,
test, or statistical analysis. (Continued)
Symbol
Parameter
Conditions
Min
Typ
Max
Units
ENABLE CONTROL
4
V
IH
EN Pin Minimum
High Input
75
%of
AVIN
V
IL
EN Pin Maximum
Low Input
25
%of
AVIN
I
EN
EN Pin Pullup
Current
EN = 0V
1.2
µA
THERMAL CONTROLS
T
SD
T
J for Thermal
Shutdown
165
˚C
T
SD-hys
Hysteresis for
Thermal Shutdown
10
˚C
Note 1: Absolute maximum ratings indicate limits beyond which damage to the device may occur. Operating Range indicates conditions for which the device is
intended to be functional, but does not guarantee specfic performance limits. For guaranteed specifications and test conditions, see the Electrical Characteristics.
Note 2: Human body model: 1.5k
Ω in series with 100pF. SW and PVIN pins are derated to 1.5kV
Note 3: VOUT measured in a non-switching, closed-loop configuration at the SNS pin.
Note 4: The enable pin is internally pulled up, so the LM2852 is automatically enabled unless an external enable voltage is applied.
www.national.com
5


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