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LM2853 数据表(PDF) 5 Page - Texas Instruments

部件名 LM2853
功能描述  3A 550 kHz Synchronous SIMPLE SWITCHER Buck Regulator
PDF  18 Pages
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制造商  TI [Texas Instruments]
网页  http://www.ti.com
标志 TI - Texas Instruments

LM2853 数据表(HTML) 5 Page - Texas Instruments

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Electrical Characteristics Specifications with standard typeface are for T
J = 25˚C, and those in bold face type
apply over the full Junction Temperature Range (−40˚C to 125˚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˚C and are provided for
reference purposes only. Unless otherwise specified AVIN = PVIN = 5V. (Continued)
Symbol
Parameter
Conditions
Min
Typ
Max
Units
THERMAL CONTROLS
T
SD
Thermal Shutdown Threshold
165
˚C
T
SD-HYS
Hysteresis for Thermal
Shutdown
10
˚C
THERMAL RESISTANCE
θ
JA
Junction to Ambient
MXA14A
38
˚C/W
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 specific performance limits. For guaranteed specifications and test conditions, see the Electrical Characteristics.
Note 2: The human body model is a 100 pF capacitor discharged through a 1.5 k
Ω resistor into each pin. Test Method is per JESD22-AI14.
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 LM2853 is automatically enabled unless an external enable voltage is applied.
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