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AAT1141
EEWorld咨询电话：82357002，82350740－8068 邮件咨询：datasheet@eeworld.com.cn 器件描述：Fast Transient 600mA Step-Down Converter 器件厂商：ANALOGICTECH [Advanced Analogic Technologies] 厂商主页：http://www.analogictech.com/ 文件大小：954.77KB 文件页数：19 PDF阅读：AAT1141.pdf (点击阅读器件资料) 摘要： AAT1141 Fast Transient 600mA Step-Down ConverterSwitchReg TM PRODUCT DATASHEET 1141.2007.12.1.3 1www.analogictech.com General Description The AAT1141 SwitchReg is a 1.4MHz step-down con- verter with an input voltage range of 2.7V to 5.5V and output voltage as low as 0.6V. It is optimized to react quickly to a load variation. The AAT1141 is available in fixed voltage versions with internal feedback and a programmable version with external feedback resistors. It can deliver 600mA of load current while maintaining a low 35μA no load quiescent current. The 1.4MHz switching frequency minimizes the size of external components while keeping switching losses low. The AAT1141 is designed to maintain high efficiency throughout the operating range, which is critical for por- table applications. The AAT1141 is available in a Pb-free SOT23-5 package and is rated over the -40°C to +85°C temperature range. Features ? V IN Range: 2.7V to 5.5V ? V OUT Fixed or Adjustable from 0.6V to V IN ? 35μA No Load Quiescent Current ? Up to 98% Efficiency ? 600mA Max Output Current ? 1.4MHz Switching Frequency ? 120μs Soft Start ? Fast Load Transient ? Over-Temperature Protection ? Current Limit Protection ? 100% Duty Cycle Low-Dropout Operation ? <1μA Shutdown Current ? SOT23-5 Package ? Temperature Range: -40°C to +85°C Applications ? Cellular Phones ? Digital Cameras ? Handheld Instruments ? Microprocessor / DSP Core / IO Power ? PDAs and Handheld Computers ? USB Devices Typical Application (Fixed Output Voltage) 4.7?H L1 4.7?F C1 4.7?F C2 EN OUT IN LX GND AAT1141 U1 V IN VOUT 相关器件：AAT1141IGV-1.8-T1 AAT1141IGV-0.6-T1

AAT1141

EEWorld咨询电话：82357002，82350740－8068 邮件咨询：datasheet@eeworld.com.cn

器件描述：Fast Transient 600mA Step-Down Converter
器件厂商：ANALOGICTECH [Advanced Analogic Technologies]
厂商主页：http://www.analogictech.com/
文件大小：954.77KB
文件页数：19
PDF阅读：AAT1141.pdf (点击阅读器件资料)

摘要：
AAT1141
Fast Transient 600mA Step-Down ConverterSwitchReg
TM
PRODUCT DATASHEET
1141.2007.12.1.3 1www.analogictech.com
General Description
The AAT1141 SwitchReg is a 1.4MHz step-down con-
verter with an input voltage range of 2.7V to 5.5V and
output voltage as low as 0.6V. It is optimized to react
quickly to a load variation.
The AAT1141 is available in fixed voltage versions with
internal feedback and a programmable version with
external feedback resistors. It can deliver 600mA of load
current while maintaining a low 35μA no load quiescent
current. The 1.4MHz switching frequency minimizes the
size of external components while keeping switching
losses low.
The AAT1141 is designed to maintain high efficiency
throughout the operating range, which is critical for por-
table applications.
The AAT1141 is available in a Pb-free SOT23-5 package
and is rated over the -40°C to +85°C temperature
range.
Features
? V
IN
Range: 2.7V to 5.5V
? V
OUT
Fixed or Adjustable from 0.6V to V
IN
? 35μA No Load Quiescent Current
? Up to 98% Efficiency
? 600mA Max Output Current
? 1.4MHz Switching Frequency
? 120μs Soft Start
? Fast Load Transient
? Over-Temperature Protection
? Current Limit Protection
? 100% Duty Cycle Low-Dropout Operation
? <1μA Shutdown Current
? SOT23-5 Package
? Temperature Range: -40°C to +85°C
Applications
? Cellular Phones
? Digital Cameras
? Handheld Instruments
? Microprocessor / DSP Core / IO Power
? PDAs and Handheld Computers
? USB Devices
Typical Application (Fixed Output Voltage)
4.7?H
L1
4.7?F
C1
4.7?F
C2
EN
OUT
IN LX
GND
AAT1141
U1
V
IN VOUT

相关器件：AAT1141IGV-1.8-T1 AAT1141IGV-0.6-T1

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