SNVA427C January   2010  – December 2021 LMZ12003

 

  1.   Trademarks
  2. 1 Description
  3. 2 Packaging Highlights
  4. 3 Demo Board Features
  5. 4 Typical Applications
  6. 5 Demo Board Schematic
  7. 6 Demo Board Bill of Materials (BOM)
  8. 7 Demo Board Hookup
  9. 8 Demo Board Passive Components
  10. 9 Performance Characteristics
  11. 10Revision History

7 Demo Board Hookup

VOUT: Connect the load to VOUT and one of the GND posts. The module can source up to a 3-A load current.

Connect VIN to a positive voltage in the 4.5-V to 20-V range. Connect the negative terminal of the source supply to one of the posts labeled GND.

The Enable input post is configured for direct connection to the VIN post. With the chosen resistor values, this results in an undervoltage lockout level of 4.5-V input. The top enable resistor is RENT (aka REN1) and the bottom enable resistor is RENB (aka REN2).

If the Enable post is disconnected, the module will be disabled and about 20 μA of supply current will flow from VIN to ground while in the disabled mode. With the enable input connected to VIN through the resistor divider, there will be about 1.5 mA of no-load quiescent current into the VIN input. Additional current flows into the enable divider string.