Introduction
2
SLVUAO5A – June 2016 – Revised March, 2018
Copyright © 2016–2018, Texas Instruments Incorporated
TPS63070EVM-693
1.2
Performance Specification
provides a summary of the TPS63070EVM-693 performance specifications. All specifications are
given for an ambient temperature of 25°C.
Table 1. Performance Specification Summary
Specification
Test Conditions
Min
Typ
Max
Unit
Input voltage
2
16
V
Output voltage
2.5
5
9
V
Output current
during operation VIN
≥
4.5V
0
2000
mA
during operation VOUT
≥
4.5 and boost factor
(VOUT/VIN)
≤
1
0
2000
mA
Operating frequency
2400
kHz
1.3
Modifications
The printed-circuit board (PCB) for this EVM is designed to accommodate both the fixed and adjustable
versions of this IC. If the fixed version is installed, R1 and R3 are replaced with a 0-
Ω
resistor and R2 is
open. Extra positions are available for additional input and output capacitors.
1.3.1
Adjustable-Output IC U1 Operation
U1 is configured for evaluation of the adjustable-output version. This unit is set to 5 V. Resistors R1, R2
and R3 can be used to set the output voltage between 2.0 V and 9.0 V. See the data sheet for
recommended values.
1.3.2
Fixed-Output Operation
U1 can be replaced with the fixed version for evaluation. With the fixed version, R1 and R3 need to be
replaced with a 0-
Ω
resistor; R2 position is open.
2
Setup
This section describes how to properly use the TPS63070EVM-693.
2.1
Input/Output Connector and Header Descriptions
2.1.1
J1, Pin 1 and 2 – VIN
Positive input connection from the input supply for the EVM.
2.1.2
J1, Pin 3 and 4 – S+/S-
Input voltage sense connections. Measure the input voltage at this point.
2.1.3
J1, Pin 5 and 6 – GND
Vin GND return connection from the input supply for the EVM, common with J2, pin 5 and 6.
2.1.4
J2, Pin 1 and 2 – VOUT
Output voltage connection.
2.1.5
J2, Pin 3 and 4 – S+/S-
Vout Sense and GND Sense low-current sense lines for sampling the output voltage at the output
capacitor.