AAT1189数据手册集成电路（IC）的稳压器-DC-DC开关稳压器规格书PDF

描述 Description

The AAT1189 is a single output step-down (Buck) DC output regulator with an integrated high side MOSFET. The input range is 6V to 24V making it the ideal power IC solution for consumer communications equipment operating from a low cost AC/DC adapter with 12V output. 
The step-down regulator provides up to 2.5A output current in a small package. 490kHz fixed switching frequency allows small L/C filtering components.
Voltage mode control allows for optimum performance across the entire output voltage and load range.
The controller includes programmable over-current, integrated soft-start and over-temperature protection.
The AAT1189 is available in the Pb-free, low profile 16-pin TDFN34 package. The rated operating temperature range is -40°C to 85°C.

特性 Features

·VIN = 6.0 to 24.0V
·VOUT Adjustable from 1.5V to 5.5V
·IOUT up to 2.5A
·Small Solution Size
·Low-Cost Non-Synchronous Solution
·Shutdown Current <35µA
·High Switching Frequency
·Voltage Mode Control
·PWM Fixed Frequency for Lowest Noise
·Programmable Over-Current Protection
·Over-Temperature Protection
·Internal Soft Start
·Low Profile 3x4mm TDFN-16 Packages
·-40°C to 85°C Temperature Range

简介

AAT1189属于集成电路（IC）的稳压器-DC-DC开关稳压器。由制造生产的AAT1189稳压器 - DC-DC 开关稳压器DC-DC 开关稳压器 PMIC（电源管理集成电路）产品族中的产品是元器件级设备，用于需要稳定 DC 输入电压和/或将其转换为不同幅度的输出电压的应用。这些器件与称为“控制器”PMIC 的类似产品的区别在于集成了主开关元件，设备提供的电力会通过该元件。