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參數(shù)資料
| 型號(hào)： | AAT1146 |
| 廠商： | Advanced Analogic Technologies, Inc. |
| 英文描述： | Fast Transient 400mA Step-Down Converter |
| 中文描述： | 快速瞬態(tài)400mA的降壓轉(zhuǎn)換器 |
| 文件頁數(shù)： | 1/20頁 |
| 文件大小： | 784K |
| 代理商： | AAT1146 |
AAT1146
Fast Transient 400mA Step-Down Converter
1146.2006.04.1.3
1
SwitchReg
General Description
The AAT1146 SwitchReg is a member of
AnalogicTech's Total Power Management IC
(TPMIC) product family. It is a 1.4MHz step-
down converter 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 AAT1146 is available in fixed voltage versions
with internal feedback and a programmable ver-
sion with external feedback resistors. It can deliver
400mA of load current while maintaining a low
27
μ
A no load quiescent current. The 1.4MHz
switching frequency minimizes the size of external
components while keeping switching losses low.
The AAT1146 is designed to maintain high efficien-
cy throughout the operating range, which is critical
for portable applications.
The AAT1146 is available in a Pb-free, space-saving
2.0x2.1mm SC70JW-8 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
27
μ
A No Load Quiescent Current
Up to 98% Efficiency
400mA Max Output Current
1.4MHz Switching Frequency
120
μ
s Soft Start
Fast Load Transient
Over-Temperature Protection
Current Limit Protection
100% Duty Cycle Low-Dropout Operation
<1
μ
A Shutdown Current
SC70JW-8 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
μ
H
L1
4.7
μ
F
C1
4.7
μ
F
C2
EN
1
OUT
2
VIN
3
LX
4
AGND
5
PGND
6
PGND
7
PGND
8
AAT1146
U1
V
IN
V
O
相關(guān)PDF資料 |
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| AAT1146IJS-0.6-T1 | Fast Transient 400mA Step-Down Converter |
| AAT1146IJS-1.875-T1 | Fast Transient 400mA Step-Down Converter |
| AAT1150 | GT 2C 2#4 SKT RECP |
| AAT1150IKS-1.0-T1 | GT 2C 2#4 SKT RECP |
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| AAT1146_08 | 制造商:ANALOGICTECH 制造商全稱:Advanced Analogic Technologies 功能描述:Fast Transient 400mA Step-Down Converter |
| AAT1146AIGV-0.6-T1 | 制造商:Skyworks Solutions Inc 功能描述:Voltage Regulators - Switching Regulators Fast Transient 400mA Buck Converter |
| AAT1146IGV-0.6-T1 | 制造商:ANALOGICTECH 制造商全稱:Advanced Analogic Technologies 功能描述:Fast Transient 400mA Step-Down Converter |
| AAT1146IJS-0.6-T1 | 功能描述:開關(guān)變換器、穩(wěn)壓器與控制器 Fast Transient 400mA DC/DC Converter RoHS:否 制造商:Texas Instruments 輸出電壓:1.2 V to 10 V 輸出電流:300 mA 輸出功率: 輸入電壓:3 V to 17 V 開關(guān)頻率:1 MHz 工作溫度范圍: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:WSON-8 封裝:Reel |
| AAT1146IJS-1.0-T1 | 制造商:ANALOGICTECH 制造商全稱:Advanced Analogic Technologies 功能描述:Fast Transient 400mA Step-Down Converter |
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