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FT441 Datasheet(PDF) 2 Page - List of Unclassifed Manufacturers

Part # FT441
Description  1.5MHz, 900mA Synchronous Step-Down Converter
PDF  10 Pages
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Manufacturer  ETC2 [List of Unclassifed Manufacturers]
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FT441 Datasheet(HTML) 2 Page - List of Unclassifed Manufacturers

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Fremont Micro Devices
FT441
www.fremontmicro.com
Page 2 of 10
DS441-A2
TYPICAL APPLICATION CIRCUIT
Vout 1.8V
VIN
EN
SW
VFB
GND
4
2
1
3
5
VIN 2.7~4.2V
10uF
2.2uH
100K
200K
22pF
10u
F
FT441
C1
C2
R1
R2
C3
L1
Figure 1: Typical Application Circuit
ABSOLUTE MAXIMUM RATINGS
VIN to GND……………………………….……………………………………………………………-0.3V to 6V
EN to GND..…………………………………………….……………………………….. ……-0.3V to (VIN+0.3)
VFB to GND..…………………………………………………………………………………. -0.3V to (VIN+0.3)
SW to GND………………….…………………………………………………………….……-0.3V to (VIN+0.3)
Peak SW Sink and Source Current……………...……………………………………………….Internally Limited
Junction to Ambient Thermal Resistance (θJA).…………………….……………………………………250℃/W
Operating Temperature Range……………….……………………………………………………...-40℃ to +85℃
Junction Temperature………………………………………………………………………..….... -40℃ to +150℃
Storage Temperature Range …………………………..……………………………………….….-55℃ to +150℃
Lead Temperature (Soldering, 10sec) …………………………………………………………………...…...300℃
Stresses exceeding Maximum Ratings may damage the device. Maximum Ratings are stress ratings only.
Functional operation above the Recommended Operating Conditions is not implied. Extended exposure to
stresses above the Recommended Operating Conditions may affect device reliability.



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