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SIMPLE SWITCHER POWER CONVERTE
AE2596
AE2596
● General Description
The AE2596 series of regulators are monolithic integrated circuits that provide all the active
functions for a step-down(buck) switching regulator, capable of driving a 3A load with excellent
line and load regulation. These devices are available in fixed output voltages of 3.3V, 5V, 12V,
and an adjustable output version.
Requiring a minimum number of external components, these regulators are simple to use
and include internal frequency compensation, and a fixed frequency oscillator.
The AE2596 series operates at a switching frequency of 150 kHz thus allowing smaller sized
filter components than what would be needed with lower frequency switching regulators. Available
in a standard 5-lead TO-220 package with several different lead bend options, and a 5-lead
TO-263 surface mount package.
Other features include a guaranteed±4% tolerance on output voltage under specified input
voltage and output load conditions, and±15% on the oscillator frequency. External shutdown is
included, featuring typically 80µA 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.
● Features
3.3V, 5V, 12V, and adjustable output versions
Adjustable version output voltage range,1.2V to 32V
TO-220-5L and TO-263-5L packages
Output load current 3A
Input voltage range up to 40V
Requires only 4 external components
150 kHz fixed frequency internal oscillator
TTL shutdown capability
Low power standby mode, IQ typically 80 µA
High efficiency
Thermal shutdown and current limit protection
● Application
Simple high-efficiency step-down (buck) regulator
On-card switching regulators
Positive to negative converter
Oct, 2006 V2.0
Chengdu Chip-Rail. Tech. Co., Ltd.
