Table of Contents
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1 Introduction
The TPS53313EVM-078 evaluation module (EVM) is a step-down regulator featuring the TPS53313. The
TPS53313 is a fully integrated step-down regulator employing voltage mode control.
2 Description
The TPS53313EVM-078 is designed to use a 12-V voltage rail to produce a regulated 1.2-V output with up to
6-A load current. The TPS53313EVM-078 is designed to demonstrate the TPS53313 in a typical Point-Of-Load
(POL) application while providing a number of test points to evaluate the performance of the TPS53313.
2.1 Typical Applications
•
POL applications for 5-V or 12-V step-down rails
2.2 Features
The TPS53313EVM-078 features include:
•
Continuous 6-A output current capability
•
Support all MLCC output capacitors
•
Voltage mode control
•
Selectable light-load operation modes (forced continuous conduction mode (FCCM) and skip mode)
•
Selectable switching frequency settings (600 kHz and 1.00 MHz)
•
Support synchronization to external clock
•
Selectable overcurrent threshold
•
Soft-stop output discharge during disable
•
Overcurrent, overvoltage, undervoltage, and overtemperature protections
•
Power-good indication
•
Pre-bias output voltage start-up
•
Convenient test points for probing critical waveforms
3 Electrical Performance Specifications
Table 3-1. TPS53313EVM-078 Electrical Performance Specifications
PARAMETER
Input Characteristic
Voltage range
Maximum input current
No load input current
Output Characteristics
Output voltage
Output voltage regulation
Output voltage ripple
Output load current
Over current limit (peak)
Systems Characteristics
Switching frequency
Peak efficiency
Full load efficiency
Operating temperature
(1)
Jumpers set to default locations, See section 6 of this user's guide
SLUU819A – DECEMBER 2011 – REVISED DECEMBER 2021
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TEST CONDITIONS
VIN
VIN = 12 V
VIN = 12 V, IOUT = 0 A, f
= 600 kHz under skip
SW
mode
Setpoint accuracy,
(VIN = 8.0 V – 14 V, IOUT = 0 A – 6 A)
Line regulation,
(VIN = 8.0 V – 14 V, IOUT = 6 A)
Load regulation,
(VIN = 12 V, IOUT = 0 A – 6 A)
VIN = 12 V, IOUT = 6 A
VIN = 12 V
VIN = 12 V, IOUT = 3.0 A, f
= 600 kHz
SW
VIN = 12 V, IOUT = 6.0 A, f
= 600 kHz
SW
Copyright © 2021 Texas Instruments Incorporated
MIN
TYP
8.0
-1%
0
600/1000
TPS53313 Step-Down Converter Evaluation Module User's Guide
Introduction
(1)
MAX
UNITS
12
14
V
0.8
A
8.0
mA
1.2
V
1%
0.1%
0.2%
10
mV
PP
6.0
A
9
kHz
85.5%
82.4%
25
°C
3
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