Detailed Description

The EL7564CMZ 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 EL7564CMZ 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. The EL7564CMZ features power tracking, which makes the start-up sequencing of multiple converters possible. A junction temperature indicator conveniently monitors the silicon die temperature, saving the designer time on the tedious thermal characterization. The minimal external components and full functionality make this EL7564CMZ ideal for desktop and portable applications. The EL7564CMZ is specified for operation over the -40?C to +85?C temperature range.

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

Applications:
DSP, CPU core and IO supplies
Logic/Bus supplies
Portable equipment
DC/DC converter modules
GTL + Bus power supply

SOIC 20 package. Actual product may vary from picture.
A20494S