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參數(shù)資料
| 型號(hào)： | AAT2514 |
| 廠商： | Advanced Analogic Technologies, Inc. |
| 英文描述： | Dual Channel 600mA Step-Down Converter |
| 中文描述： | 雙通道600mA降壓轉(zhuǎn)換器 |
| 文件頁(yè)數(shù)： | 1/16頁(yè) |
| 文件大小： | 302K |
| 代理商： | AAT2514 |
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AAT2514
Dual Channel 600mA Step-Down Converter
2514.2007.06.1.0
1
SwitchReg
General Description
The AAT2514 SwitchReg is a dual channel cur-
rent mode PWM DC-DC step-down converter oper-
ating at 1.5MHz constant frequency. The device is
ideal for portable equipment requiring two separate
power supplies that need high current up to 600mA.
The device operates from single-cell Lithium-ion
batteries while still achieving over 96% efficiency.
The AAT2514 also can run at 100% duty cycle for
low dropout operation, extending battery life in
portable systems while light load operation provides
very low output ripple for noise sensitive applica-
tions.
The device has a unique adaptive slope compen-
sation scheme that makes it possible to operate
with a lower range of inductor values to optimize
size and provide efficient operation. The 1.5MHz
switching frequency minimizes the size of external
components while keeping switching losses low.
The AAT2514 can operate from a 2.5V to 5.5V
input voltage and can supply up to 600mA output
current for each channel.
The AAT2514 is available in a Pb-free 3 x 3mm 10-
lead TDFN package and operates over the -40°C
to +85°C temperature range.
Features
V
IN
Range:2.5V to 5.5V
Up to 600mA Output Current
High Efficiency: Up to 96%
1.5MHz Constant Frequency Operation
100% Duty Cycle Dropout Operation
Low R
DS(ON)
Internal Switches: 0.35
Current Mode Operation for Excellent Line
and Load Transient Response
Adaptive Slope Compensation
Soft Start
Short-Circuit and Thermal Fault Protection
<1μA Shutdown Current
Power-On Reset Output
Small, Thermally Enhanced TDFN33 -10
Package
-40°C to +85°C Temperature Range
Applications
Cellular Telephones
Digital Still Cameras
PDAs
Portable Media Players
Wireless and DSL Modems
Typical Application
EN1
LX1
GND
AAT2514
LX2
L1 2.2μH
V
OUT1
1.8V
C3
10μF
C2
10μF
V
IN
2.5V to 5.5V
IN
EN2
FB2
FB1
V
OUT2
2.5V
R5
100k
RESET
L2 2.2μH
R1
316k
R2
634k
R3
316k
R4
1M
C1
10μF
POR
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| AAT2514IDE-AA-T1 | Dual Channel 600mA Step-Down Converter |
| AAT2552 | Total Power Solution for Portable Applications |
| AAT2552IRN-CAE-T1 | Total Power Solution for Portable Applications |
| AAT2556 | Battery Charger and Step-Down Converter for Portable Applications |
| AAT2556IWP-CA-T1 | Battery Charger and Step-Down Converter for Portable Applications |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| AAT2514_08 | 制造商:ANALOGICTECH 制造商全稱:Advanced Analogic Technologies 功能描述:Dual Channel 600mA Step-Down Converter |
| AAT2514IDE-AA-T1 | 制造商:Skyworks Solutions Inc 功能描述:DC TO DC CONVERTER |
| AAT2515 | 制造商:ANALOGICTECH 制造商全稱:Advanced Analogic Technologies 功能描述:Dual 600mA Fast Transient High Frequency Buck Converter |
| AAT2515IWP-AA-T1 | 制造商:Skyworks Solutions Inc 功能描述:DC TO DC CONVERTER |
| AAT2522IRN-1-T1 | 功能描述:開關(guān)變換器、穩(wěn)壓器與控制器 2 Hi-Curr Lo-Noise Step-Down Reg 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 |
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