描述 Description

The AAT2614 is a multiple rail power management integrated circuit. It integrates a 600mA switching regulator and four fully integrated 300mA low dropout (LDO) regulators in a small Pb-free 3mm x 3mm, 20-pin TQFN package or in a 1.65mm x 1.65mm, 16-bump CSP-0.4 package making it ideal for space-constraint systems.The step-down converter is a monolithic synchronous converter, which integrates its compensation network and features up to 90% efficiency. It operates at 2MHz and uses a tiny 2.2μH inductor with a small 10μF output capacitor. At no load, AAT2614 current consumption is typically equal to 260μA. Each LDO operates with a small 1μF output capacitor and only two 2.2μF input capacitors are required for the inputs. All regulators include a separate enable providing a convenient solution to implement any power-up and power-down sequencing. All output voltages are factory One Time Programmable (OTP). The typical regulation accuracy is +/-1% for all channels. With their separate inputs the linear regulators can use the switcher’s output as their input power, in order to reduce drop out voltage and improve efficiency.
AAT2614 is a safe solution, which integrates an over-current limit for each channel and over-temperature protection. The device is rated over a temperature range of -40°C to 85°C.

特性 Features

·Small: 3mm x 3mm TDFN 20-pin Package or 1.65mm x 1.65mm 0.4 CSP 16 Bumps
·Efficient: Up to 90% Efficient 600mA Switching Converter
·Low Power: 260μA of Quiescent Current at No Load When all the Channels are Enabled
·Flexible: Separate Power Inputs and Separate Enables
·Safe: Over-Current and Over-Temperature Protections

簡介

AAT2614屬于集成電路（IC）的線性穩(wěn)壓器控制器。由制造生產(chǎn)的AAT2614穩(wěn)壓器 - 線性 + 開關(guān)此產(chǎn)品族中的產(chǎn)品用于構(gòu)建執(zhí)行 DC-DC 轉(zhuǎn)換或電壓調(diào)節(jié)功能的電路，采用的是開關(guān)模式和線性穩(wěn)壓器功能的組合。雖然具體的拓撲各不相同，但此類產(chǎn)品的主要目的是將開關(guān)模式技術(shù)的效率優(yōu)勢與線性穩(wěn)壓技術(shù)的低噪聲特性結(jié)合在一起。