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ACE2596
Technology Description
150KHz 3A Buck DC-DC Converter
The ACE2596 series of regulators are fixed frequency PWM buck (step-down) DC/DC converter, capable of driving a 3A load with excellent line and load regulation. These regulators include internal frequency compensation and a fixed frequency oscillator so that they are easy to use. A system adopting ACE2596 requires a minimum number of external components to work. A standard series of inductors, optimized for use with the ACE2596 series, are available from several manufacturers. This feature greatly simplifies the design of switch-mode power supplies. These ICs are available in TO-263-5 packages.
Features
• • • • • • • • • • • • • •
3. 3V, 5V, 12V Fixed(±4% Tolerance) and Adjustable (±3% Tolerance) Output Versions Guaranteed 3A Output Load Current 150kHz Fixed Frequency Internal Oscillator Input Voltage Range up to 32V Requires only 4 external components High Efficiency up to 90% Excellent Line and Load Regulation TTL Shutdown Capability Low Power Standby Mode, IQ Typically 80μA Built-in Current Limit Protection and Thermal Shutdown Circuit
Application
LCD Monitor and LCD TV On-Card DC-DC Converter DVD Recorder PDP
Absolute Maximum Ratings
Parameter Input voltage ON/OFF Pin Voltage Feedback Pin Voltage Operating Junction Temperature Thermal Resistance (Junction to Ambient, No Heatsink) TO-263-5 Lead Temperature (Soldering, 10sec) Storage Temperature Range Symbol VIN VON/OFF VFB TJ RθJA TLEAD TSTG Max 40 40 40 150 60 260 -65 to150
O
Unit V V V
O
C
C/W
O
C C
O
Note : Stresses greater than those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional operation of the device ate these or any other conditions beyond those indicated under “Recommended Operating Conditions” i...
ACE2596 PDF File
