The EL7564 is an integrated, full-featured synchronous stepdown regulator with output voltage adjustable from 1.0V to 3.8V. It is capable of delivering 4A continuous current at up to 95 efficiency. The EL7564 operates at a constant frequency pulse width modulation (PWM) mode, making external synchronization possible. Patented on-chip resistorless current sensing enables current mode control, which provides cycle-by-cycle current limiting, over-current protection, and excellent step load response.

特性 Features

? Integrated synchronous MOSFETs and current mode controller

? 4A continuous output current

? Up to 95 efficiency

? 4.5V to 5.5V input voltage

? Adjustable output from 1V to 3.8V

? Cycle-by-cycle current limit

? Precision reference

? ±0.5 load and line regulation

? Adjustable switching frequency to 1MHz

? Oscillator synchronization possible

? Internal soft start

? Over voltage protection

? Junction temperature indicator

? Over temperature protection

? Under voltage lockout

? Multiple supply start-up tracking

? Power good indicator

? 20-pin SO (0.300”) package

? 28-pin HTSSOP package

? Pb-Free available (RoHS compliant)

Applications

? DSP, CPU core and IO supplies

? Logic/Bus supplies

? Portable equipment

? DC/DC converter modules

? GTL + Bus power supply