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參數(shù)資料
| 型號： | AAT1120 |
| 廠商： | Advanced Analog Technology,lnc. |
| 英文描述： | 500mA Step-Down Converter |
| 中文描述： | 500mA的降壓轉(zhuǎn)換器 |
| 文件頁數(shù)： | 9/20頁 |
| 文件大小： | 705K |
| 代理商： | AAT1120 |
AAT1120
500mA Step-Down Converter
1120.2007.01.1.0
9
Functional Description
The AAT1120 is a high performance 500mA,
1.5MHz monolithic step-down converter designed
to operate with an input voltage range of 2.7V to
5.5V. The converter operates at 1.5MHz, which
minimizes the size of external components. Typical
values are 3.3
μ
H for the output inductor and 4.7
μ
F
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. Light load 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
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| AAT1120IES-0.6-T1 | 500mA Step-Down Converter |
| AAT1121 | 1.5MHz, 250mA Step-Down Converter |
| AAT1121_07 | 1.5MHz, 250mA Step-Down Converter |
| AAT1121IES-0.6-T1 | 1.5MHz, 250mA Step-Down Converter |
| AAT1121IPS-0.6-T1 | 1.5MHz, 250mA Step-Down Converter |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| AAT1120IES-0.6-T1 | 制造商:ANALOGICTECH 制造商全稱:Advanced Analogic Technologies 功能描述:500mA Step-Down Converter |
| AAT1121 | 制造商:ANALOGICTECH 制造商全稱:Advanced Analogic Technologies 功能描述:1.5MHz, 250mA Step-Down Converter |
| AAT1121_07 | 制造商:ANALOGICTECH 制造商全稱:Advanced Analogic Technologies 功能描述:1.5MHz, 250mA Step-Down Converter |
| AAT1121IES-0.6-T1 | 制造商:ANALOGICTECH 制造商全稱:Advanced Analogic Technologies 功能描述:1.5MHz, 250mA Step-Down Converter |
| AAT1121IPS-0.6-T1 | 制造商:SKYWORKS SOLUTIONS INC 功能描述:0.6VADJ 1.5MHZ STEP DOWN TDFN22- TR 制造商:Skyworks Solutions Inc 功能描述:DC TO DC CONVERTER |
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