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參數資料
| 型號： | AAT1123IJS-1.2-T1 |
| 廠商： | Advanced Analog Technology,lnc. |
| 英文描述： | 1MHz Step-Down Converter |
| 中文描述： | 1MHz的降壓轉換器 |
| 文件頁數： | 1/20頁 |
| 文件大小： | 568K |
| 代理商： | AAT1123IJS-1.2-T1 |
AAT1123
1MHz Step-Down Converter
1123.2007.02.1.6
1
SwitchReg
General Description
The AAT1123 SwitchReg is a member of
AnalogicTech's Total Power Management IC
(TPMIC) product family. It is a 1MHz step-down
converter with an input voltage range of 2.7V to
5.5V and output as low as 0.6V. Its low supply cur-
rent, small size, and high switching frequency
make the AAT1123 the ideal choice for portable
applications.
The AAT1123 is available in either a fixed version
with internal feedback or a programmable version
with external feedback resistors. It can deliver up
to 600mA of load current while maintaining a low
25μA no load quiescent current. The 1MHz switch-
ing frequency minimizes the size of external com-
ponents while keeping switching losses low. The
AAT1123 feedback and control delivers excellent
load regulation and transient response with a small
output inductor and capacitor.
The AAT1123 is designed to maintain high efficien-
cy throughout the operating range and provides
fast turn-on time.
The AAT1123 is available in a 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
Adjustable Down to 0.6V
— Fixed or Adjustable Version
Fast Turn-On Time (100μs Typical)
25μA No Load Quiescent Current
Up to 97% Efficiency
Output Current Up to 600mA
1MHz Switching Frequency
Soft Start
Over-Temperature Protection
Current Limit Protection
100% Duty Cycle Low-Dropout Operation
0.1μA 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)
AAT1123 Efficiency
(V
OUT
= 2.5V; L = 10
μ
H)
Output Current (mA)
E
60
70
80
90
100
0.1
1
10
100
1000
V
IN
= 3.3V
4.7
μ
H
L1
22
μ
F
C1
4.7
μ
F
C2
EN
1
OUT
2
VIN
3
LX
4
AGND
5
PGND
6
PGND
7
PGND
8
AAT1123
U1
V
IN
V
O
相關PDF資料 |
PDF描述 |
|---|---|
| AAT1142 | 800mA Voltage-Scaling Step-Down Converter |
| AAT1142ITP-1.8-T1 | 800mA Voltage-Scaling Step-Down Converter |
| AAT1142IWP-1.8-T1 | 800mA Voltage-Scaling Step-Down Converter |
| AAT1147 | High Efficiency, Low Noise, Fast Transient 400mA Step-Down Converter |
| AAT1147IJS-0.6-T1 | High Efficiency, Low Noise, Fast Transient 400mA Step-Down Converter |
相關代理商/技術參數 |
參數描述 |
|---|---|
| AAT1125IJS-0.6-T1 | 功能描述:開關變換器、穩壓器與控制器 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 開關頻率:1 MHz 工作溫度范圍: 安裝風格:SMD/SMT 封裝 / 箱體:WSON-8 封裝:Reel |
| AAT1126 | 制造商:ANALOGICTECH 制造商全稱:Advanced Analogic Technologies 功能描述:600mA, 1MHz Step-Down Converter |
| AAT1126IGV-0.6-T1 | 制造商:Skyworks Solutions Inc 功能描述:SKYAAT1126IGV-0.6-T1 DC/DC CONVERTERS (S 制造商:Skyworks Solutions Inc 功能描述:DC TO DC CONVERTER |
| AAT1130 | 制造商:ANALOGICTECH 制造商全稱:Advanced Analogic Technologies 功能描述:2.5MHz 500mA Step-Down DC/DC Converter |
| AAT1130IJQ-0.6 | 制造商:ANALOGICTECH 制造商全稱:Advanced Analogic Technologies 功能描述:2.5MHz 500mA Step-Down DC/DC Converter |
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