ISL8033AIRZ集成电路（IC）的稳压器-DC-DC开关稳压器规格书PDF中文资料

ISL8033 is a dual integrated power controller rated for 3A per channel with a 1MHz step-down regulator that is ideal for any low power low-voltage applications. The ISL8033A offers 2.5MHz operation for smaller more compacted design. The channels are 180° out-of-phase for input RMS current and EMI reduction. It is optimized for generating low output voltages down to 0.8V each. The supply voltage range is from 2.85V to 6V, allowing for the use of a single Li+ cell, three NiMH cells or a regulated 5V input. It has a guaranteed minimum output current of 3A each when ISET is connected to VDD. The output current of each output is

selectable by setting ISET pin.

特性 Features

• Dual 3A High Efficiency Synchronous Buck Regulator with up to 95 Efficiency

• 2 Output Accuracy Over-Temperature/Load/Line

• Internal Digital Soft-Start - 1.5ms

• External Synchronization up to 6MHz (ISL8033)

• Internal Current Mode Compensation

• Peak Current Limiting and Hiccup Mode Short Circuit Protection

• Adjustable Peak Overload Current

• Negative Current Protection

• Pb-Free (RoHS Compliant)

Applications

• DC/DC POL Modules

• µC/µP, FPGA and DSP Power

• Plug-in DC/DC Modules for Routers and Switchers

• Test and Measurement Systems

• Li-ion Battery Power Devices

• Bar Code Readers