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參數(shù)資料
| 型號(hào)： | AAT2500M |
| 廠商： | Advanced Analogic Technologies, Inc. |
| 英文描述： | 400mA Step-Down Converter and 300mA LDO |
| 中文描述： | 400mA的降壓轉(zhuǎn)換器和300mA的LDO |
| 文件頁數(shù)： | 1/22頁 |
| 文件大?。?/td> | 547K |
| 代理商： | AAT2500M |
AAT2500M
400mA Step-Down Converter and 300mA LDO
2500M.2007.06.1.0
1
SystemPower
Typical Application
2.7V to 5.5V
Input Supply
Enable Buck
Enable LDO
IN_BUCK
V
OUT_BUCK
LX
4.7μF
C2
4.7μF
R1
R2
AAT2500M
2.2μH
OUT_LDO
FB_BUCK
V
OUT(LDO)
C1
2.2μF
PGND
AGND
IN_LDO
EN_BUCK
EN_LDO
1μF
General Description
The AAT2500M is a high efficiency 400mA step-
down converter and 300mA low dropout (LDO) lin-
ear regulator for applications where power efficien-
cy and solution size are critical. The typical input
power source can be a single-cell Lithium-ion/poly-
mer battery or a 5V or 3.3V power bus.
The step-down converter is capable of delivering up
to 400mA output current, uses a typical switching
frequency of 1.8MHz to greatly reduce the size of
external components, offers high speed turn-on and
maintains a low 25μA no load quiescent current.
The LDO is capable of delivering up to 300mA out-
put current.
The AAT2500M is available in the Pb-free, space-
saving 12-pin TSOPJW package and is rated over
the -40°C to +85°C operating temperature range.
Features
V
IN
Range: 2.7V to 5.5V
Output Current:
— Step-Down Converter: 400mA
— LDO: 300mA
Low Quiescent Current
— 130μA Combined for Both Step-Down
Converter plus LDO
90% Efficient Step-down Converter (at 100mA)
Integrated Power Switches
100% Duty Cycle
1.8MHz Switching Frequency
Current Limit Protection
Automatic Soft-Start
Over Temperature Protection
TSOPJW-12 Package
-40°C to +85°C Temperature Range
Applications
Cellular Phones
Digital Cameras
Handheld Instruments
Micro Hard Disc Drives
Microprocessor / DSP Core / IO Power
Optical Storage Devices
PDAs and Handheld Computers
Portable Media Players
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| AAT2500MITP-AW-T1 | 400mA Step-Down Converter and 300mA LDO |
| AAT2500 | 1MHz Step-Down Converter/LDO Regulator |
| AAT2500IFP-AQ-T1 | 1MHz Step-Down Converter/LDO Regulator |
| AAT2500IWP-AG-T1 | 1MHz Step-Down Converter/LDO Regulator |
| AAT2500IWP-AI-T1 | 1MHz Step-Down Converter/LDO Regulator |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| AAT2500MITP-AW-T1 | 功能描述:開關(guān)變換器、穩(wěn)壓器與控制器 400mA Step-Down Convrt + 300mA LDO 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 |
| AAT2503 | 制造商:ANALOGICTECH 制造商全稱:Advanced Analogic Technologies 功能描述:Adjustable 3-Channel Regulator |
| AAT2503_08 | 制造商:ANALOGICTECH 制造商全稱:Advanced Analogic Technologies 功能描述:Adjustable 3-Channel Regulator |
| AAT2503IZL-BAA-T1 | 制造商:ANALOGICTECH 制造商全稱:Advanced Analogic Technologies 功能描述:Adjustable 3-Channel Regulator |
| AAT2504 | 制造商:ANALOGICTECH 制造商全稱:Advanced Analogic Technologies 功能描述:Adjustable 3-Channel Regulator |
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