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AAT1154IAS-1.8-T1 fiches techniques PDF

Advanced Analogic Technologies - 1MHz 3A Buck DC/DC Converter

Numéro de référence AAT1154IAS-1.8-T1
Description 1MHz 3A Buck DC/DC Converter
Fabricant Advanced Analogic Technologies 
Logo Advanced Analogic Technologies 





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AAT1154IAS-1.8-T1 fiche technique
General Description
The AAT1154 SwitchReg™ is a member of
AnalogicTech™'s Total Power Management™ IC
product family. The Step-down switching converter
is ideal for applications where high efficiency, small
size, and low ripple are critical. Able to deliver 3A
with an internal power MOSFET, the current-mode
controlled IC provides high efficiency. Fully inter-
nally compensated, the AAT1154 simplifies system
design and lowers external part count.
The AAT1154 is available in an SOP-8 package,
rated over -40 to 85°C.
AAT1154
1MHz 3A Buck DC/DC Converter
Features
SwitchReg
• VIN Range: 2.7-5.5Volts
• Fixed or adjustable VOUT: 1.0V - 4.2V
• 3A output current
• Up to 95% efficiency
• Integrated low on resistance power switch
• Internally compensated current mode control
• 1MHz switching frequency
• Constant PWM mode
• Low output ripple with light load
• Internal softstart
• Current limit protection
• Over-Temperature protection
• SOP-8 package
• -40 to 85°C Temperature Range
Typical Application
INPUT
100
10µF
0.1µF
Applications
• Computer Peripherals
• Set Top Boxes
• Network Cards
• Cable/DSL Modems
• High efficiency conversion from 5V or 3.3V
supply
VP
AAT1154
VCC
FB
LX
ENABLE
GND
1.5µH
120µF
OUTPUT
1154.2003.08.0.91
1

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