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LM3674 Fiches technique(PDF) 3 Page - Texas Instruments

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No de pièce LM3674
Description  2MHz, 600mA Step-Down DC-DC Converter in SOT 23-5
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Fabricant  TI1 [Texas Instruments]
Site Internet  http://www.ti.com
Logo TI1 - Texas Instruments

LM3674 Fiches technique(HTML) 3 Page - Texas Instruments

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LM3674
www.ti.com
SNVS405E – DECEMBER 2005 – REVISED SEPTEMBER 2006
Absolute Maximum Ratings
(1)
VIN Pin: Voltage to GND
−0.2V to 6.0V
EN, FB, SW Pin:
(GND
−0.2V) to
(VIN + 0.2V)
Continuous Power Dissipation
Internally Limited
Junction Temperature (TJ-MAX)
+125°C
Storage Temperature Range
−65°C to +150°C
Maximum Lead Temperature
260°C
(Soldering, 10 sec.)
ESD Rating (2)
Human Body model: All Pins
2 kV
Machine Model: All Pins
200V
(1)
Absolute Maximum Ratings indicate limits beyond which damage to the device may occur. Operating Ratings are conditions under
which operation of the device is guaranteed. Operating Ratings do not imply guaranteed performance limits. For guaranteed
performance limits and associated test conditions, see the Electrical Characteristics tables.
(2)
The Human body model is a 100 pF capacitor discharged through a 1.5 k
Ω resistor into each pin. The machine model is a 200 pF
capacitor discharged directly into each pin (MIL-STD-883 3015.7). National Semiconductor recommends that all intergrated circuits be
handled with appropriate precautions. Failure to observe proper ESD handling techniques can result in damage.
Operating Ratings
(1) (2)
Input Voltage Range (3)
2.7V to 5.5V
Recommended Load Current
0A to 600 mA
Junction Temperature (TJ) Range
−30°C to +125°C
Ambient Temperature (TA) Range
−30°C to +85°C
(1)
Absolute Maximum Ratings indicate limits beyond which damage to the device may occur. Operating Ratings are conditions under
which operation of the device is guaranteed. Operating Ratings do not imply guaranteed performance limits. For guaranteed
performance limits and associated test conditions, see the Electrical Characteristics tables.
(2)
All voltages are with respect to the potential at the GND pin.
(3)
Input voltage range recommended for ideal applications performance for the specified output voltages are given below
VIN = 2.7V to 5.5V for 1.0V ≤ VOUT < 1.8V
VIN = ( VOUT + VDROP OUT) to 5.5V for 1.8 ≤ VOUT≤ 3.3VWhere VDROP OUT = ILOAD * (RDSON (P) + RINDUCTOR)
Thermal Properties
Junction-to-Ambient Thermal Resistance (
θJA) (SOT23-5) for a 2
Junction-to-Ambient Thermal Resistance (
θJA) (SOT23-5) for a 4
layer board (Note 6)
layer board (Note 6)
250°C/W
130°C/W
Copyright © 2005–2006, Texas Instruments Incorporated
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