Datasheet > 电源电路 > 开关式稳压器或控制器> AAT1232ITP-T1

AAT1232ITP-T1

更新时间： 2024-01-22 09:46:38

品牌	Logo	应用领域
ANALOGICTECH		转换器稳压器开关式稳压器或控制器电源电路开关式控制器升压转换器
页数	文件大小	规格书
17页	438K
描述
24V 100mA Step-Up Converter

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中文翻译

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技术参数
数据手册

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AAT1232ITP-T1 技术参数

生命周期：	Obsolete	包装说明：	,
Reach Compliance Code：	unknown	ECCN代码：	EAR99
HTS代码：	8542.39.00.01	风险等级：	5.81
Is Samacsys：	N	模拟集成电路 - 其他类型：	SWITCHING REGULATOR
Base Number Matches：	1

AAT1232ITP-T1 数据手册

AAT1232

24V 100mA Step-Up Converter

Functional Block Diagram

VIN

LIN

Output

Timer

EN/SET

Control

FB1

1.2V

Output

Select

V_REF

FB2

SEL

PGND

GND

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.

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.

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.

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.

1232.2006.12.1.3

1...5 6 789 10 11...17

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