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參數(shù)資料
| 型號： | AAT1232 |
| 廠商： | Advanced Analog Technology,lnc. |
| 英文描述： | 24V 100mA Step-Up Converter |
| 中文描述： | 24V的100mA的升壓轉(zhuǎn)換器 |
| 文件頁數(shù)： | 8/17頁 |
| 文件大?。?/td> | 416K |
| 代理商： | AAT1232 |
AAT1232
24V 100mA Step-Up Converter
8
1232.2006.12.1.3
Functional Block Diagram
Control
V
REF
Output
Select
Output
Timer
FB1
FB2
SEL
EN/SET
VP
LIN
VIN
SW
PGND
GND
1.2V
Functional Description
The AAT1232 consists of a DC/DC boost controller,
an integrated slew rate controlled input disconnect
MOSFET switch, and a MOSFET power switch. A
high voltage rectifier, power inductor, output capac-
itor, and resistor divider network are required to
implement a DC/DC boost converter.
Control Loop
The AAT1232 provides the benefits of current mode
control with a simple hysteretic feedback loop. The
device maintains exceptional DC regulation, tran-
sient response, and cycle-by-cycle current limit with-
out additional compensation components.
The AAT1232 modulates the power MOSFET
switching current in response to changes in output
voltage. This allows the voltage loop to directly
program the required inductor current in response
to changes in the output load.
The switching cycle initiates when the N-channel
MOSFET is turned ON and current ramps up in the
inductor. The ON interval is terminated when the
inductor current reaches the programmed peak
current level. During the OFF interval, the input
current decays until the lower threshold, or zero
inductor current, is reached. The lower current is
equal to the peak current minus a preset hystere-
sis threshold - which determines the inductor ripple
current. The peak current is adjusted by the con-
troller until the output current requirement is met.
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| AAT1232_07 | 制造商:ANALOGICTECH 制造商全稱:Advanced Analogic Technologies 功能描述:24V 100mA Step-Up Converter |
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| AAT1232ITP-DB1 | 制造商:Advanced Analogic Tech 功能描述:AAT1232 Series 24 V 100 mA Step-Up DC/DC Converter Eval Board 制造商:SKYWORKS SOLUTIONS 功能描述:AAT1232 Series 24 V 100 mA Step-Up DC/DC Converter Eval Board |
| AAT1232ITP-T1 | 功能描述:開關(guān)變換器、穩(wěn)壓器與控制器 24V 100mA Step-Up 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 |
| AAT1235 | 制造商:ANALOGICTECH 制造商全稱:Advanced Analogic Technologies 功能描述:High Efficiency White LED Drivers for Backlight and Keypad |
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