1. Core Product Information

️· Product Series: R-5xxxPA_DA Series
️· Type: DC-DC Converter (presumably switching regulator, although this isn't explicitly stated)
️· Manufacturer: RECOM International
️· Date: 24-August-2005 (This is a relatively old datasheet, so newer versions may exist.)

2. Key Electrical Specifications (from the datasheet tables)

*(Note: 'xxx' indicates a variable value in the series name – this implies there are different models with varying output voltages/currents).*

️· Output Power: Not explicitly stated, but implied by the power dissipation limits.
️· Input Voltage: 4.5 – 18V (This is a wide-range input, suitable for battery-powered or flexible voltage applications).
️· Output Voltage: Not stated, but implied by the "R-5xxx" naming convention, and it is probably a fixed voltage.
️· Output Current: Not specifically stated in the provided text, but can be deduced from power and voltage.
️· Switching Frequency: 270kHz, 300kHz, 330kHz (multiple options)
️· Quiescent Current: 20mA
️· Operating Temperature Range: -40°C to +85°C
️· Storage Temperature Range: -40°C to +125°C
️· MTBF (Mean Time Between Failures): 749kHrs (at nominal output, 100% load, Tamb = 25°C) or 150kHrs
️· Internal Power Dissipation: 1.4W (important for thermal design)
️· Internal Power Dissipation calculation: Io x Vo x (1 - Efficiency)

3. Important Features/Characteristics

️· Wide Input Voltage Range: 4.5V to 18V
️· Wide Operating Temperature Range: Suitable for harsh environments.
️· High Efficiency: (Implied, but not quantified in this excerpt).
️· Internal Switching Regulator: Uses a switching regulator for efficient conversion.
️· Thermal Considerations: Requires careful thermal design due to power dissipation.
️· External Components: Requires external capacitors and potentially inductors (as implied by the application circuit and note).

4. Application Circuit

The datasheet includes a standard application circuit diagram. It shows the basic connections for the input voltage, output voltage, and external components (capacitors). There is mention to place the capacitor close to the output pins.

5. Notes & Recommendations

️· Capacitor Placement: The datasheet emphasizes the importance of placing the output capacitor as close as possible to the output pins for optimal performance.
️· Thermal Design: Pay close attention to the internal power dissipation and ensure adequate heat sinking or airflow to prevent overheating.



## SUMMARY:

The RECOM R-5xxxPA_DA series are DC-DC converters designed for a wide range of input voltages (4.5-18V) and operating temperatures (-40°C to +85°C). They are suitable for applications requiring efficient power conversion and operate at switching frequencies of 270kHz, 300kHz, and 330kHz. The converters have internal power dissipation up to 1.4W. Key design considerations include close placement of the output capacitor and careful thermal management.




Important Considerations due to OCR/Text Quality:

️· OCR Errors: There are numerous OCR errors throughout the text. Some words are misspelled or joined together. I've tried to correct these as best as possible.
️· Table Data: The tables are not fully parsed in this text. I've extracted what I could, but some specific values may be missing or inaccurate.
️· Missing Information: The provided text is an excerpt, so it's missing crucial information like the exact output voltages/currents, efficiency curves, and detailed specifications.