RT6206A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 RT6206A is a synchronous step-down DC/DC converter with Advanced Constant On-Time (ACOT®) mode control. It achieves high power density to deliver up to 5.5A output current from a 4.5V to 18V input supply. The proprietary ACOT® mode offers an optimal transient response over a wide range of loads and all kinds of ceramic capacitors, which allows the device to adopt very low ESR output capacitor for ensuring performance stabilization. In addition, RT6206A keeps an excellent constant switching frequency under line and load variation and the integrated synchronous power switches with the ACOT® mode operation provides high efficiency in whole output current load range. Cycle-by-cycle current limit provides an accurate protection by a valley detection of low side MOSFET and external soft-start setting eliminates input current surge during startup. Protection functions include thermal shutdown for RT6206A.



The RT6206A are available in the TSSOP-14 (Exposed pad), SOP-8 (Exposed Pad) and WDFN-10L 3x3 packages.

特性 Features

• ACOTTM Mode Enables Fast Transient Response
• 4.5V to 18V Input Voltage Range
• 5.5A Output Current
• 35mΩ Internal Low Side N-MOSFET
• Advanced Constant On-Time Control
• Support All Ceramic Capacitors
• Up to 95% Efficiency
• Adjustable Output Voltage from 0.765V to 7V
• Adjustable Soft-Start
• Cycle-by-Cycle Current Limit
• Input Under-Voltage Lockout
• Thermal Shutdown
• RoHS Compliant and Halogen Free

应用 Application

• Industrial and Commercial Low Power Systems
• Computer Peripherals
• LCD Monitors and TVs
• Green Electronics/Appliances
• Point of Load Regulation for High-Performance DSPs, FPGAs, and ASICs