SNVAA31 November   2021 LM61435-Q1 , LM61440-Q1 , LM61460-Q1 , LM62435-Q1 , LM62440-Q1

 

  1.   Trademarks
  2. 1LM61440-Q1 vs LM62440-Q1 Device Differences
  3. 2Universal PCB Layout Design for Easy Swap Between LM614xx and LM624xx
    1. 2.1 FPWM and Auto Mode
    2. 2.2 Output voltage (Fixed to Adjustable, Vice Versa)
    3. 2.3 Component Selection Connection Instructions
  4. 3Summary
  5. 4References

3 Summary

The details in this application note help differentiate the pinout difference between the LM614xx and LM624xx using the LM61440 and LM62440 as device examples. Pin 6 and Pin 7 are the two main device pinout differences that make the device family set not p2p compatible. A proposed universal PCB layout was provided to help customers create an all-in-one PCB layout solution that enables the quick swap between the LM614xx and LM624xx for a future-proof design. This makes it easy to interchange between the LM61435, LM61440, and LM61460 with the LM62435 and LM62440 devices.