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參數(shù)資料
| 型號(hào)： | AAT2158 |
| 廠商： | Advanced Analogic Technologies, Inc. |
| 英文描述： | 1.5A Low Noise Step-Down Converter |
| 中文描述： | 1.5A的低噪聲降壓轉(zhuǎn)換器 |
| 文件頁數(shù)： | 1/18頁 |
| 文件大小： | 684K |
| 代理商： | AAT2158 |
General Description
The AAT2158 SwitchReg is a 1.5A step-down con-
verter with an input voltage range of 2.4V to 5.5V
and an adjustable output voltage from 0.6V to V
IN
.
The 1.4MHz switching frequency enables the use
of small external components. The small footprint
and high efficiency make the AAT2158 an ideal
choice for portable applications.
The AAT2158 delivers 1.5A maximum output current
while consuming only 42μA of no-load quiescent
current. Ultra-low R
DS(ON)
integrated MOSFETs and
100% duty cycle operation make the AAT2158 an
ideal choice for high output voltage, high current
applications which require a low dropout threshold.
The AAT2158 provides excellent transient
response and high output accuracy across the
operating range. No external compensation com-
ponents are required.
The AAT2158 maintains high efficiency throughout
the load range. The AAT2158’s unique architecture
produces reduced ripple and spectral noise. Over-
temperature and short-circuit protection safeguard
the AAT2158 and system components from damage.
The AAT2158 is available in a Pb-free, space-sav-
ing 16-pin 3x3mm QFN package. The product is
rated over an operating temperature range of -40°C
to +85°C.
Features
1.5A Maximum Output Current
Input Voltage: 2.4V to 5.5V
Output Voltage: 0.6V to V
IN
Up to 95% Efficiency
Low Noise Light Load Mode
42μA No Load Quiescent Current
No External Compensation Required
1.4MHz Switching Frequency
100% Duty Cycle Low-Dropout Operation
Internal Soft Start
Over-Temperature and Current Limit
Protection
<1μA Shutdown Current
16-Pin 3x3mm QFN Package
Temperature Range: -40°C to +85°C
Applications
Cellular Phones
Digital Cameras
Hard Disk Drives
MP3 Players
PDAs and Handheld Computers
Portable Media Players
USB Devices
AAT2158
1.5A Low Noise Step-Down Converter
Typical Application
2.2μH
L1
22μF
C3
10μF
C1
2.5V
3.3V
187k
59k
R4
LX
14
N/C
6
EN
7
VCC
9
VP
10
N/C
8
LX
13
PGND
3
VP
12
VP
11
FB
4
LX
15
PGND
2
PGND
1
SGND
5
N/C
16
AAT2158
U1
2158.2007.10.1.1
1
SwitchReg
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| AAT2158_08 | 制造商:ANALOGICTECH 制造商全稱:Advanced Analogic Technologies 功能描述:1.5A Low Noise Step-Down Converter |
| AAT2158_0810 | 制造商:ANALOGICTECH 制造商全稱:Advanced Analogic Technologies 功能描述:1.5A Low Noise Step-Down Converter |
| AAT2158AIVN-0.6-T1 | 功能描述:開關(guān)變換器、穩(wěn)壓器與控制器 1.5A Low Noise Step-Down 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 |
| AAT2158IVN-0.6-T1 | 制造商:Skyworks Solutions Inc 功能描述:DC TO DC CONVERTER 制造商:SKYWORKS 功能描述:ANALOG IC |
| AAT2215IWP-T1 | 制造商: 功能描述:3.0-5.5Vout .6-4Amp 600KHz Step-Up 制造商:Skyworks Solutions Inc 功能描述:DC TO DC CONVERTER |
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