參數(shù)資料
型號： AAT2120
廠商： Advanced Analogic Technologies, Inc.
英文描述： 500mA Low Noise Step-Down Converter
中文描述： 低噪聲500mA的降壓轉(zhuǎn)換器
文件頁數(shù)： 9/20頁
文件大?。?/td> 1145K
代理商： AAT2120
Functional Description
The AAT2120 is a high performance 500mA,
1.8MHz monolithic step-down converter designed
to operate with an input voltage range of 2.7V to
5.5V. The converter operates at 1.8MHz, which
minimizes the size of external components. Typical
values are 3.3μH for the output inductor and 4.7μF
for the ceramic output capacitor.
The device is designed to operate with an output
voltage as low as 0.6V. Power devices are sized for
500mA current capability while maintaining over
90% efficiency at full load. Low current efficiency is
maintained at greater than 80% down to 1mA of
load current.
At dropout, the converter duty cycle increases to
100% and the output voltage tracks the input volt-
age minus the R
DS(ON)
drop of the P-channel high-
side MOSFET.
A high-DC gain error amplifier with internal com-
pensation controls the output. It provides excellent
transient response and load/line regulation. Soft
start eliminates any output voltage overshoot when
the enable or the input voltage is applied.
Functional Block Diagram
EN
LX
Err
Amp
Logic
DH
DL
PGND
VP
FB
GND
Voltage
Reference
INPUT
VIN
2120.2007.10.1.1
9
AAT2120
500mA Low Noise Step-Down Converter
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
AAT2120_08 制造商:ANALOGICTECH 制造商全稱:Advanced Analogic Technologies 功能描述:500mA Low Noise Step-Down Converter
AAT2120IES-0.6-T1 功能描述:開關(guān)變換器、穩(wěn)壓器與控制器 500mA Low Noise NON STOCKED RoHS:否 制造商:Skyworks Solutions, Inc. 輸出電壓: 輸出電流: 輸出功率: 輸入電壓: 開關(guān)頻率: 工作溫度范圍: 安裝風(fēng)格: 封裝 / 箱體: 封裝:Reel
AAT2138IWO-0.6-T1 功能描述:直流/直流開關(guān)轉(zhuǎn)換器 2.7-5.5Vin 500mA-3A 2.8MHz Step-Down RoHS:否 制造商:Monolithic Power Systems (MPS) 最大輸入電壓: 開關(guān)頻率: 輸出電壓: 輸出電流: 輸出端數(shù)量: 最大工作溫度: 安裝風(fēng)格:
AAT2146 制造商:ANALOGICTECH 制造商全稱:Advanced Analogic Technologies 功能描述:Low Noise, Fast Transient 600mA Step-Down Converter
AAT2146_08 制造商:ANALOGICTECH 制造商全稱:Advanced Analogic Technologies 功能描述:Low Noise, Fast Transient 600mA Step-Down Converter
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