P1484中文资料3A, 23V, 340KHZ SYNCHRONOUS RECTIFIED STEP-DOWN CONVERTER数据手册UTC规格书

描述 Description

The UTC P1484 is a synchronous buck regulator. The device provides3A of continuous load current over a wide input voltage of 5V~23V. Current mode control provides fast transient responseand cycle-bycycle current limit. An adjustable soft-start prevents inrush current at turn-on   The UTC P1484 can provide low-ripple power, high efficiency, and perfect transient characteristics. The duty ratio varies linearly from 0% to 92% in the PWM control. The error amplifier circuit and soft-start circuit included in this device can prevent overshoot at startup. An enable function, an over current protect (OCP) function and short circuit protect (SCP) are also build inside, and when OCP happens, the operation frequency will be reduced.

特性 Features

• 3A Output Current
• Wide 5V~23V Operating Input Range
• Integrated Power MOSFET Switches
• Programmable Soft-Start
• Stable with Low ESR Ceramic Output Capacitors
• Fixed 340KHz Frequency
• Cycle-by-Cycle Over Current Protection