Texas Instruments TPS62869EVM-118, Руководство пользователя, Страница: 2 / 15

1 Introduction
The TPS62869 is a family of synchronous, step-down converter, coming in a 1.5-x2.5-x1.0-mm QFN package.
1.1 Performance Specification
Table 1-1 provides a summary of the TPS62869EVM-118 performance specifications.
Table 1-1. Performance Specification Summary
SPECIFICATION TEST CONDITIONS MIN TYP MAX UNIT
Input voltage 2.4 5 5.5 V
Output voltage setpoint 0.9 V
Output current 0 6000 mA
1.2 Modifications
The printed-circuit board (PCB) for this EVM is designed to accommodate the different adjustable output voltage
versions of this integrated circuit (IC). On the EVM, additional input and output capacitors can be added.
2 Setup
This section describes how to properly use the TPS62869EVM-118.
2.1 Input/Output Connector Descriptions
J1, Pin 1 and 2 – VIN Positive input connection from the input supply for the EVM
J1, Pin 3 and 4 – S+/S- Input voltage sense connections. Measure the input voltage at this point.
J1, Pin 5 and 6 – GND Input return connection from the input supply for the EVM
J2, Pin 1 and 2 – VOUT Output voltage connection
J2, Pin 3 and 4 – S+/S- Output voltage sense connections. Measure the output voltage at this point.
J2, Pin 5 and 6 – GND Output return connection
J3, Pin 5 – VBUS The VBUS pin of this header is used to bias the SCL and SDA nodes of I²C interface
via a resistor.
J3, Pin 6 – GND The GND pin of this header is used to connect the grounds of the IC and the I²C
interface.
J3, Pin 9 – SCL The pin of this header should be connected to the SCL of the I²C interface.
J3, Pin 10 – SDA The pin of this header should be connected to the SDA of the I²C interface.
JP1 – VID/PG VID/ PG pin jumper. Place the jumper across VID/ PG and LOW pins before start-up.
This sets the output voltage and device address. After startup, VOUT reflects the
value set on V
OUT
Register 1 if the jumper is placed across VID/ PG and LOW pins.
VOUT follows the value set on V
OUT
Register 2 if the jumper is placed across VID/ PG
and HIGH pins.
JP2 – EN EN pin input jumper. Place the jumper across ON and EN to turn on the IC. Place the
jumper across OFF and EN to turn off the IC.
2.2 Hardware Setup
To operate the EVM, set jumpers JP1 and JP2 to the desired position per Section 2.1 . Connect the input supply
to J1 and connect the load to J2.
Introduction www.ti.com
2 TPS62869EVM-118 Evaluation Module SLUUC88B – MARCH 2021 – REVISED NOVEMBER 2021
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