Texas Instruments TPS53313EVM-078, Руководство пользователя

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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
(1)
PARAMETER TEST CONDITIONS MIN TYP MAX UNITS
Input Characteristic
Voltage range VIN 8.0 12 14 V
Maximum input current VIN = 12 V 0.8 A
No load input current VIN = 12 V, IOUT = 0 A, f
SW
= 600 kHz under skip
mode
8.0
mA
Output Characteristics
Output voltage 1.2 V
Output voltage regulation Setpoint accuracy,
(VIN = 8.0 V – 14 V, IOUT = 0 A – 6 A) -1% 1%
Line regulation,
(VIN = 8.0 V – 14 V, IOUT = 6 A) 0.1%
Load regulation,
(VIN = 12 V, IOUT = 0 A – 6 A) 0.2%
Output voltage ripple VIN = 12 V, IOUT = 6 A 10 mV
PP
Output load current 0 6.0
A
Over current limit (peak) VIN = 12 V 9
Systems Characteristics
Switching frequency 600/1000 kHz
Peak efficiency VIN = 12 V, IOUT = 3.0 A, f
SW
= 600 kHz 85.5%
Full load efficiency VIN = 12 V, IOUT = 6.0 A, f
SW
= 600 kHz 82.4%
Operating temperature 25 °C
(1) Jumpers set to default locations, See section 6 of this user’s guide
www.ti.com Introduction
SLUU819A – DECEMBER 2011 – REVISED DECEMBER 2021
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TPS53313 Step-Down Converter Evaluation Module User's Guide 3
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