ACE2596 Datasheet, PDF (1/11 Pages) ACE Technology Co., LTD. – 150KHz 3A Buck DC-DC Converter

Technology
ACE2596
150KHz 3A Buck DC-DC Converter
Description
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, I_Q 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
Symbol Max Unit
Input voltage
VIN
40
V
ON/OFF Pin Voltage
Feedback Pin Voltage
V_ON/OFF
40
V
V_FB
40
V
Operating Junction Temperature
T_J
150 ^OC
Thermal Resistance (Junction to Ambient, No Heatsink) TO-263-5 R_θJA
60 ^OC/W
Lead Temperature (Soldering, 10sec)
T_LEAD
260
O_C
Storage Temperature Range
T_STG -65 to150 ^OC
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” is not implied. Exposure to “Absolute Maximum Ratings” for extended periods may affect
device reliability.
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