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器件描述：600mA Step-Down Converter
器件厂商：ANALOGICTECH [Advanced Analogic Technologies]
厂商主页：http://www.analogictech.com/
文件大小：1033.75KB
文件页数：18
PDF阅读：AAT1106.pdf (点击阅读器件资料)
摘要：
AAT1106
600mAStep-DownConverter
1106.2007.07.1.0 1
SwitchReg
?
General Description
TheAAT1106 SwitchReg? is a 1.5MHz constant
frequencycurrentmodePWMstep-downconvert-
er with a unique adaptive slope compensation
schemeallowingthedevicetooperatewithalower
rangeofinductorvaluestooptimizesizeandpro-
vide efficient operation. It is ideal for portable
equipmentpoweredbysingle-cellLithium-ionbat-
teries and is optimized for high efficiency, achiev-
inglevelsupto96%.
TheAAT1106cansupplyupto600mAloadcurrent
from a 2.5V to 5.5V input voltage and the output
voltage can be regulated as low as 0.6V. The
device also can run at 100% duty cycle for low
dropoutoperation,extendingbatterylifeinportable
systems.Inaddition,light load operation provides
very low output ripple for noise sensitive applica-
tions and the 1.5MHz switching frequency mini-
mizesthesizeofexternalcomponentswhilekeep-
ingswitchinglosseslow.
The AAT1106 is available in adjustable and fixed
(1.5V, 1.8V) output voltage versions, comes in a
Pb-free,low-profile5-pinTSOT23package,andis
ratedoverthe-40°Cto+85°Ctemperaturerange.
Features
?V
IN
Range:2.5Vto5.5V
?V
OUT
: Adjustable0.6VtoV
IN
? Upto600mAOutputCurrent
? Upto96%Efficiency
? 1.5MHzSwitchingFrequency
? 100%DutyCycleDropoutOperation
? AdaptiveSlopeCompensatedCurrentMode
ControlforExcellentLineandLoadTransient
Response
? <1?AShutdownCurrent
? Short-CircuitandThermalFaultProtection
? TSOT23-5Package
? -40°Cto+85°CTemperatureRange
Applications
? CellularPhones,Smartphones
? DigitalStillCameras
? DigitalVideoCameras
? MicroprocessorandDSPCoreSupplies
? MP3andPortableMediaPlayers
? PDAs
? WirelessandDSLModems
TypicalApplication
AAT1106-1.8
IN
EN
LX
OUT
GND
V
IN
2.5V to 5.5V
C1
4.7?F
C3
10?F
L1
2.2?H
V
OUT
1.8V
相关器件：AAT1106ICB-1.8-T1 AAT1106_07 AAT1106ICB-1.5-T1 AAT1106ICB-0.6-T1
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