General Description

EGM2576 series is designed to provide all the active function for a step-down (buck)switching regulator, and drives a maximum load current as high as 3A line and load regulations.

EGM2576 is available in fixed output voltages of 3.3V, 5V, and a versatile Adjustable output version.

These regulators are simple to use and require minimum number of external components.

The features include internal frequency compensation and a fixed-frequency oscillator.

The EGM2576 is high-efficiency replacements for popular three-terminal linear regulators,and is requiring a smaller heat sink or even no need heat sink.

EGM2576 performs well with standard inductors from most of manufacturers, and simplifying the design of switch-mode power supplies.

External shutdown is included with 80 µA (typical) standby current.

The output switch has cycle-by-cycle current limiting as well as thermal shutdown for full protection under fault conditions.

EGM2576 operates at a switching frequency of 52 kHz which allowing smaller size filter components than what would be needed with lower frequency switching regulators.

EGM2576 series are available in a standard 8 lead SOP package with heat sink

Features

◆ Standard SOP8 package is available
◆ 3.3V, 5V, and Adjustable output versions
◆ Adjustable version output voltage range 1.23V to 37V
◆ VOUT accuracy is to ±1.8% under specified input voltage and output load conditions
◆ Input voltage range up to 40V
◆ Requires only 4 external components with High efficiency
◆ TTL shutdown capability, low power standby mode
◆ Built-in thermal shutdown, current limit protection
◆ Uses standard inductors
◆ 52 kHz fixed frequency internal oscillator

Applications

◆ Pre-regulator for linear regulators
◆ High-efficiency step-down buck regulator
◆ On-card/board switching regulators
◆ Positive to negative converter (buck-boost)