General Description

The EC1602 is a series of easy to use fixed and adjustable step-down(buck) switch-mode voltage regulators.

These devices are available in fixed output voltage of 5V, and an adjustable output version.

Both versions are capable of driving a 3A load with excellent line and load regulation.

Requiring a minimum number of external components, these regulators are simple to use and include internal frequency compensation, and a fixed-frequency oscillator.

The output voltage is guaranteed to ±3% tolerance under specified input voltage and output load conditions.

The oscillator frequency is guaranteed to ±15%. External shutdown is included, featuring typically 80 μA standby current.

Self protection features include a two stage frequency reducing current limit for the output switch and an over temperature shutdown for complete protection under fault conditions.

The EC1602 is available in TO-263-5L packages.

Features

◆5V and adjustable output versions
◆Output adjustable from 1.23v to 57V
◆Fixed 52KHz frequency internal oscillator
◆ Guaranteed 3A output load current
◆Input voltage range up to 60V
◆TTL shutdown capability
◆Excellent line and load regulation
◆High efficiency
◆Thermal shutdown and current limit protection
◆Available in TO-263 packages

Applications

◆Simple High-efficiency step-down regulator
◆On-card switching regulators
◆Positive to negative converter
◆LCD monitor and LCD TV
◆DVD recorder and PDP TV
◆Battery charger
◆Step-down to 3.3V for microprocessors