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LM2672MX-12 数据表(PDF) 3 Page - Texas Instruments

部件名 LM2672MX-12
功能描述  Power Converter High Efficiency 1A Step-Down Voltage Regulator with Features
Download  16 Pages
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制造商  TI1 [Texas Instruments]
网页  http://www.ti.com
标志 TI1 - Texas Instruments

LM2672MX-12 数据表(HTML) 3 Page - Texas Instruments

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formula:
. If power dissipation exceeds the maximum specified above, the internal thermal protection
TI Confidential - NDA Restrictions
LM2731
www.ti.com
SNVS217F – MAY 2004 – REVISED NOVEMBER 2012
PIN DESCRIPTIONS
Pin
Name
Function
1
SW
Drain of the internal FET switch.
2
GND
Analog and power ground.
3
FB
Feedback point that connects to external resistive divider.
4
SHDN
Shutdown control input. Connect to Vin if the feature is not used.
5
VIN
Analog and power input.
These devices have limited built-in ESD protection. The leads should be shorted together or the device placed in conductive foam
during storage or handling to prevent electrostatic damage to the MOS gates.
Absolute Maximum Ratings
(1)
Storage Temperature Range
−65°C to +150°C
Operating Junction Temperature Range
−40°C to +125°C
Lead Temp. (Soldering, 5 sec.)
300°C
Power Dissipation(2)
Internally Limited
FB Pin Voltage
−0.4V to +6V
SW Pin Voltage
−0.4V to +22V
Input Supply Voltage
−0.4V to +14.5V
SHDN Pin Voltage
−0.4V to VIN + 0.3V
θJA (SOT23-5)
265°C/W
ESD Rating(3)
Human Body Model
2 kV
(1)
Absolute Maximum Ratings indicate limits beyond which damage to the component may occur. Electrical specifications do not apply
when operating the device outside of the limits set forth under the operating ratings which specify the intended range of operating
conditions.
(2)
The maximum power dissipation which can be safely dissipated for any application is a function of the maximum junction temperature,
TJ(MAX) = 125°C, the junction-to-ambient thermal resistance for the SOT-23 package, θJ-A = 265°C/W, and the ambient temperature,
TA. The maximum allowable power dissipation at any ambient temperature for designs using this device can be calculated using the
circuitry will protect the device by reducing the output voltage as required to maintain a safe junction temperature.
(3)
The human body model is a 100 pF capacitor discharged through a 1.5 k
Ω resistor into each pin.
Copyright © 2004–2012, Texas Instruments Incorporated
Submit Documentation Feedback
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Product Folder Links: LM2731


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