Datasheet > 电源电路 > 开关式稳压器或控制器> AAT1162IRN-0.6-T1

AAT1162IRN-0.6-T1

更新时间： 2024-02-09 02:05:28

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
页数	文件大小	规格书
16页	626K
描述
12V, 1.5A Step-Down DC/DC Converter

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技术参数
数据手册

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AAT1162IRN-0.6-T1 技术参数

是否Rohs认证：	符合	生命周期：	Obsolete
Reach Compliance Code：	compliant	ECCN代码：	EAR99
HTS代码：	8542.39.00.01	风险等级：	5.84
模拟集成电路 - 其他类型：	SWITCHING REGULATOR	控制模式：	CURRENT-MODE
JESD-30 代码：	R-PDSO-N16	端子数量：	16
最高工作温度：	85 °C	最低工作温度：	-40 °C
最大输出电流：	1.5 A	封装主体材料：	PLASTIC/EPOXY
封装代码：	SON	封装等效代码：	SOLCC16,.12,18
封装形状：	RECTANGULAR	封装形式：	SMALL OUTLINE
认证状态：	Not Qualified	子类别：	Switching Regulator or Controllers
表面贴装：	YES	最大切换频率：	1000 kHz
温度等级：	INDUSTRIAL	端子形式：	NO LEAD
端子节距：	0.45 mm	端子位置：	DUAL
Base Number Matches：	1

AAT1162IRN-0.6-T1 数据手册

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AAT1162

12V, 1.5A Step-Down DC/DC Converter

Functional Block Diagram

AIN

LDO

Note1

Internal

Power

LDO

Current

Sense Amp

Error

Amp

Control

Logic

Current

Mode

Comparator

Reference

PGND

AGND

DGND

COMP

Note1: For fixed output voltage versions, FB is connected to the

error amplifier through the resistive voltage divider shown.

Control Loop

Functional Description

The AAT1162 regulates the output voltage using

constant frequency current mode control. The

AAT1162 monitors current through the high-side P-

channel MOSFET and uses that signal to regulate

the output voltage. This provides improved tran-

sient response and eases compensation. Internal

slope compensation is included to ensure the cur-

rent "inside loop" stability.

The AAT1162 is a current-mode step-down DC/DC

converter that operates over a wide 4V to 13.2V

input voltage range and is capable of supplying up

to 1.5A to the load with the output voltage regulated

as low as 0.6V. Both the P-channel power switch

and N-channel synchronous rectifier are internal,

reducing the number of external components

required. The output voltage is adjusted by an exter-

nal resistor divider; fixed output voltage versions are

available upon request. The regulation system is

externally compensated, allowing the circuit to be

optimized for each application. The AAT1162

includes cycle-by-cycle current limiting, frequency

foldback for improved short-circuit performance, and

thermal overload protection to prevent damage in

the event of an external fault condition.

High efficiency is maintained under light load con-

ditions by automatically switching to variable fre-

quency Light Load control. In this condition, transi-

tion losses are reduced by operating at a lower fre-

quency at light loads.

1162.2007.09.1.2

1...7 8 91011 12 13...16

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