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.

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