EC2596 Datasheet, PDF (1/16 Pages) E-CMOS Corporation – 3A 150KHz PWM Buck DC/DC Converter

3A 150KHz PWM Buck DC/DC Converter EC2596
General Description
The EC2596 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 3.3V, 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 EC2596 is available in TO-220B-5L ,TO220-5L and
TO-263-5L packages.
Features
 3.3V,5V and adjustable output Versions
 Output adjustable from 1.23V to 43V
 Fixed 150KHz frequency internal oscillator
 Guaranteed 3A output load current
 Input voltage range up to 45V
 Low power standby mode, I_Q typically 80 μA
 TTL shutdown capability
 Excellent line and load regulation
 Requires only 4 external components
 High efficiency
 Thermal shutdown and current limit protection
 Available in TO-220B/TO220 and 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
Package Types
Figure 1. Package Types of EC2596
E-CMOS Corp. (www.ecmos.com.tw)
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5J22N Rev. F001