SBVU080 September   2023

 

  1.   1
  2.   Description
  3.   Get Started
  4.   Features
  5.   Applications
  6.   6
  7. 1Evaluation Module Overview
    1. 1.1 Introduction
    2. 1.2 Kit Contents
    3. 1.3 Specification
    4. 1.4 Device Information
  8. 2Hardware
    1. 2.1 Power Requirements
    2. 2.2 Setup
    3. 2.3 Connector Information
      1. 2.3.1 VIN and GND
      2. 2.3.2 VOUT and GND
    4. 2.4 Jumper Information
      1. 2.4.1 J13 EN
      2. 2.4.2 J16
      3. 2.4.3 J19
      4. 2.4.4 J20
      5. 2.4.5 J22
      6. 2.4.6 J23
      7. 2.4.7 J24
      8. 2.4.8 J27
    5. 2.5 Test Points
      1. 2.5.1 TP1
      2. 2.5.2 TP3
    6. 2.6 TRKRLDOEVM-119 Operation and Component Selection
    7. 2.7 Optional Load Transient Circuit Operation
  9. 3Hardware Design Files
    1. 3.1 Schematic
    2. 3.2 Board Layout
    3. 3.3 Bill of Materials (BOM)
  10. 4Additional Information
    1. 4.1 Trademarks

2.4.1 J13 EN

EN is a 3-pin header used to enable or disable the TPS7B84-Q1, which in turn enables the populated tracker LDO.

The center pin of the 3-pin header is tied to the TPS7B84-Q1 EN input. When the 2-pin shunt is placed across the right two pins of the header, VIN is shorted to EN and the TPS7B84-Q1 is enabled. When the 2-pin shunt is placed across the left two pins of the header, GND is shorted to EN and the TPS7B84-Q1 is disabled.

If the TPS7B84-Q1 is not to be used to supply the ADJ/EN signal for the populated tracker, remove jumper J13 and use TP1 to drive ADJ/EN directly, or a combination of J5, R2, R5, C11 to configure ADJ/EN to be a function of the input voltage.