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參數資料
| 型號： | AAT1121 |
| 廠商： | Advanced Analogic Technologies, Inc. |
| 英文描述： | 1.5MHz, 250mA Step-Down Converter |
| 中文描述： | 1.5MHz的，250mA降壓轉換器 |
| 文件頁數： | 1/20頁 |
| 文件大小： | 617K |
| 代理商： | AAT1121 |
AAT1121
1.5MHz, 250mA Step-Down Converter
1121.2006.04.1.0
1
SwitchReg
General Description
The AAT1121 SwitchReg is a member of
AnalogicTech's Total Power Management IC
(TPMIC) product family. It is a 1.5MHz step-
down converter with an input voltage range of
2.7V to 5.5V and output as low as 0.6V. Its low
supply current, small size, and high switching fre-
quency make the AAT1121 the ideal choice for
portable applications.
The AAT1121 delivers 250mA of load current, while
maintaining a low 30
μ
A no load quiescent current.
The 1.5MHz switching frequency minimizes the size
of external components, while keeping switching
losses low. The AAT1121 feedback and control
delivers excellent load regulation and transient
response with a small output inductor and capacitor.
The AAT1121 is available in a Pb-free, 8-pin,
2x2mm TDFN package and is rated over the -40°C
to +85°C temperature range.
Features
V
IN
Range: 2.7V to 5.5V
V
OUT
Range: 0.6V to V
IN
250mA Max Output Current
Up to 96% Efficiency
30
μ
A Typical Quiescent Current
1.5MHz Switching Frequency
Soft-Start Control
Over-Temperature and Current Limit
Protection
100% Duty Cycle Low-Dropout Operation
<1
μ
A Shutdown Current
Small External Components
Ultra-Small TDFN22-8 Package
Temperature Range: -40°C to +85°C
Applications
Bluetooth Headsets
Cellular Phones
Digital Cameras
Handheld Instruments
Portable Music Players
USB Devices
Typical Application
3.0
μ
H
L1
R
1
118k
Ω
R
2
59k
Ω
C
1
4.7μF
C
2
4.7μF
EN
FB
VP
VIN
LX
PGND
GND
AAT1121
V
IN
V
O
= 1.8V 250mA
相關PDF資料 |
PDF描述 |
|---|---|
| AAT1121IPS-0.6-T1 | 1.5MHz, 250mA Step-Down Converter |
| AAT1123 | 1MHz Step-Down Converter |
| AAT1123IJS-0.6-T1 | 1MHz Step-Down Converter |
| AAT1126 | 600mA, 1MHz Step-Down Converter |
| AAT1126IGV-0.6-T1 | 600mA, 1MHz Step-Down Converter |
相關代理商/技術參數 |
參數描述 |
|---|---|
| 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 |
| AAT1123 | 制造商:ANALOGICTECH 制造商全稱:Advanced Analogic Technologies 功能描述:1MHz Step-Down Converter |
| AAT1123_07 | 制造商:ANALOGICTECH 制造商全稱:Advanced Analogic Technologies 功能描述:1MHz Step-Down Converter |
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