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EEWorld×ÉÑ¯µç»°£º82357002£¬82350740£8068 ÓÊ¼þ×ÉÑ¯£ºdatasheet@eeworld.com.cn Æ÷¼þÃèÊö£º1MHz 3A Buck DC/DC Converter Æ÷¼þ³§ÉÌ£ºANALOGICTECH [Advanced Analogic Technologies] ³§ÉÌÖ÷Ò³£ºhttp://www.analogictech.com/ ÎÄ¼þ´óÐ¡£º482.25KB ÎÄ¼þÒ³Êý£º18 PDFÔÄ¶Á£ºAAT1154IAS-1.0-T1.pdf (µã»÷ÔÄ¶ÁÆ÷¼þ×ÊÁÏ) ÕªÒª£º SwitchReg ? AAT1154 1MHz 3A Buck DC/DC Converter Preliminary Information 1154.2003.08.0.91 1 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¡ãC. Features ?V IN Range: 2.7-5.5Volts ? Fixed or adjustable V OUT : 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¡ãC Temperature Range Applications ? Computer Peripherals ? Set Top Boxes ? Network Cards ? Cable/DSL Modems ? High efficiency conversion from 5V or 3.3V supply Typical Application OUTPUT INPUT 1.5?H 120?F LX VP FB GND AAT1154 V CC ENABLE 10?F 0.1?F 100? Ïà¹ØÆ÷¼þ£ºAAT1154IAS-3.3-T1 AAT1154IAS-2.5-T1 AAT1154IAS-1.8-T1 AAT1154

AAT1154IAS-1.0-T1

EEWorld×ÉÑ¯µç»°£º82357002£¬82350740£8068 ÓÊ¼þ×ÉÑ¯£ºdatasheet@eeworld.com.cn

Æ÷¼þÃèÊö£º1MHz 3A Buck DC/DC Converter
Æ÷¼þ³§ÉÌ£ºANALOGICTECH [Advanced Analogic Technologies]
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ÎÄ¼þ´óÐ¡£º482.25KB
ÎÄ¼þÒ³Êý£º18
PDFÔÄ¶Á£ºAAT1154IAS-1.0-T1.pdf (µã»÷ÔÄ¶ÁÆ÷¼þ×ÊÁÏ)

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SwitchReg
?
AAT1154
1MHz 3A Buck DC/DC Converter
Preliminary Information
1154.2003.08.0.91 1
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¡ãC.
Features
?V
IN
Range: 2.7-5.5Volts
? Fixed or adjustable V
OUT
: 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¡ãC Temperature Range
Applications
? Computer Peripherals
? Set Top Boxes
? Network Cards
? Cable/DSL Modems
? High efficiency conversion from 5V or 3.3V
supply
Typical Application
OUTPUT
INPUT
1.5?H
120?F
LX
VP
FB
GND
AAT1154
V
CC
ENABLE
10?F
0.1?F
100?

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