1. General Information

️· Product: ACE2596 Buck DC-DC Converter
️· Manufacturer: ACE Electronics Co., LTD.
️· Website: [http://www.ace-ele.com/](http://www.ace-ele.com/)
️· Disclaimer: ACE does not assume responsibility for use in life support devices without express approval.

2. Features & Variants

️· Available Output Voltages:
- 3.3V
- 5V
- 12V
- Adjustable (ADJ)
️· Output Current: Up to 3A
️· Switching Frequency: 150 kHz (Nominal, varies with temperature)
️· Package: TO-263-5

3. Electrical Characteristics (Key Values)

️· Input Voltage Range: (Not explicitly stated, but implied to be a wide range suitable for buck converters, based on application diagrams)
️· Output Voltage Accuracy: (Varies by variant - see individual specs in document)
️· Feedback Bias Current (ADJ): 10-100nA
️· Oscillator Frequency: 127-173 kHz (Varies with temperature)
️· Saturation Voltage: 1.2-1.6V
️· Maximum Duty Cycle: 100%
️· Minimum Duty Cycle: 0%
️· Current Limit: 3.4-7.5A
️· Output Leakage Current: 50 μA - 2 mA
️· Quiescent Current: 5-10 mA
️· Standby Quiescent Current: 80-250 μA
️· ON/OFF Threshold Voltage (Low): 0.6V
️· ON/OFF Threshold Voltage (High): 2.0V

4. Application Information & Components

️· Typical Inductor: Sumida CDRH127/LDNP-220MC or Equivalent. (This is a recommended inductor for the application.)
️· Application Circuits: The document includes typical application circuits for the 3.3V, 5V, 12V, and Adjustable versions. (Refer to Figures 16-19)

5. Important Notes & Warnings

️· Life Support Systems: The chip is not intended for use in life support systems without express written approval from ACE Electronics Co., LTD.
️· Critical Components: ACE is not responsible for failures related to critical components within life support systems.

To effectively use this information, refer back to the full document for detailed specifications and application diagrams.