TPS53313

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6-A, Step-down regulator with integrated switcher

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Product details

Parameters

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Package | Pins | Size

VQFN (RGE) 24 16 mm² 4 x 4 open-in-new Find other Buck converters (integrated switch)

Features

  • 4.5-V to 16-V Conversion Voltage Range
  • Adjustable Output Voltage Ranging from 0.6 V to 0.7 × VIN
  • Continuous 6-A Output Current
  • Supports All MLCC Output Capacitors
  • Selectable SKIP Mode or Forced CCM
  • Selectable Soft-Start Time (1 ms, 3 ms, or 6 ms)
  • Selectable 4-5 A, 6-A or 9-A Peak Current Limit
  • Optimized Efficiency at Light and Heavy Loads
  • Voltage Mode Control
  • Programmable Switching Frequency from 250 kHz to 1.5 MHz
  • Synchronizes to External Clock
  • RDS(on) Sensing for Zero Crossing Detection and Overcurrent Protection
  • Soft-Stop Output Discharge During Disable
  • Overcurrent, Overvoltage, and Undervoltage Protection With Hiccup
  • Overtemperature Protection
  • Open-Drain, Power Good Indication
  • Internal Bootstrap Switch
  • 4 mm × 4 mm, 24-Pin VQFN Package

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Description

TPS53313 provides a 5-V or 12-V synchronous buck converter that integrates two N-Channel MOSFETs. Due to low RDS(on) and TI proprietary SmoothPWM skip mode of operation, it optimizes the efficiency at light-load condition without compromising the output voltage ripple.

The TPS53313 features programmable (from 250 kHz to 1.5 MHz) switching frequency with selectable skip mode or forced CCM mode operation. The device provides prebiased startup, soft-stop, integrated bootstrap switch, power good function, and EN/input UVLO protection. It supports input voltages from 4.5 V to 16 V and no extra bias voltage is needed. The output voltage is adjustable from 0.6 V up to 0.7 × VIN.

The TPS53313 is available in a 4 mm × 4 mm, 24-pin VQFN package (Green RoHs compliant and Pb free) and operates from –40°C to 85°C.

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Technical documentation

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No results found. Please clear your search and try again. View all 5
Type Title Date
* Datasheet TPS53313 6-A Step-Down Regulator With Integrated Switcher datasheet (Rev. A) Oct. 31, 2016
Technical articles Minimize the impact of the MLCC shortage on your power application Mar. 29, 2019
Selection guides Power Management Guide 2018 (Rev. R) Jun. 25, 2018
Application notes Unified Ground Connection Recommendation on TPS53K- Integrated FET-Converter Dev Jan. 25, 2017
User guides Using the TPS53313EVM-078, 6-A Step-Down Regulator with Integrated Switcher Nov. 30, 2011

Design & development

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Hardware development

EVALUATION BOARDS Download
document-generic User guide
49
Description

The TPS53313EVM-078 evaluation module (EVM) is a step-down regulator featuring the TPS53313. 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 (...)

Features
  • Continuous 6-A Output Current Capability
  • Supports 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
  • (...)

Design tools & simulation

SIMULATION MODELS Download
SLUM254A.ZIP (51 KB) - PSpice Model
SIMULATION MODELS Download
SLUM330.ZIP (52 KB) - TINA-TI Spice Model
SIMULATION MODELS Download
SLUM331.TSC (162 KB) - TINA-TI Reference Design
SIMULATION TOOLS Download
PSpice® for TI design and simulation tool
PSPICE-FOR-TI — PSpice® for TI is a design and simulation environment that helps evaluate functionality of analog circuits. This full-featured, design and simulation suite uses an analog analysis engine from Cadence®. Available at no cost, PSpice for TI includes one of the largest model libraries in the (...)
Features
  • Leverages Cadence PSpice Technology
  • Preinstalled library with a suite of digital models to enable worst-case timing analysis
  • Dynamic updates ensure you have access to most current device models
  • Optimized for simulation speed without loss of accuracy
  • Supports simultaneous analysis of multiple products
  • (...)
CALCULATION TOOLS Download
SLUC263D.ZIP (131 KB)

CAD/CAE symbols

Package Pins Download
VQFN (RGE) 24 View options

Ordering & quality

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