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Product details

Parameters

Vin (Min) (V) 4.5 Vin (Max) (V) 18 Vout (Min) (V) 0.6 Vout (Max) (V) 17 Iout (Max) (A) 3 Iq (Typ) (uA) 740 Switching frequency (Min) (kHz) 550 Switching frequency (Max) (kHz) 650 Features Adjustable Current Limit, Enable, Light Load Efficiency, Power Good, Synchronous Rectification, UVLO Adjustable, Adaptive/Dynamic Voltage Scaling, Soft Start Adjustable Operating temperature range (C) -40 to 85 Rating Catalog Regulated outputs (#) 3 open-in-new Find other Buck converters (integrated switch)

Package | Pins | Size

VQFN (RHB) 32 25 mm² 5 x 5 open-in-new Find other Buck converters (integrated switch)

Features

  • Operating Input Voltage Range 4.5- to 18-V
    Continuous Output Current 3 A/2 A/2 A
  • I2C Controlled 7-Bits VID Programmable
    Output Voltage from 0.68 to 1.95 V With
    10-mV Voltage Step for Each Buck
  • I2C Controlled VID Voltage Transition
    Slew Rate
  • I2C Read Back Power Good Status,
    Overcurrent Warning for Each Buck
  • I2C Read Back Die Temperature Warning
  • I2C Compatible Interface With Standard
    Mode (100 kHz) and Fast Mode (400 kHz)
  • Feedback Reference Voltage 0.6 V ±1%
  • Fixed 600-kHz Frequency
  • Dedicated Enable and Soft Start Pins for
    Each Buck
  • Thermal Overloading Protection
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Description

The TPS65263 incorporates triple synchronous buck converters with 4.5- to 18-V wide input voltage range that encompassed most intermediate bus voltage operating off 5-, 9-, 12-, or 15-V power bus or battery. The converter, with constant frequency peak current mode, is designed to simplify its application while giving designers options to optimize the system according to targeted applications. The device operates in 600 kHz with 180° out-of-phase between buck1 and buck2, buck3 (buck2 and buck3 run in phase).

The initial startup voltage of each buck can be set with external feedback resistors. The output voltage of each buck can be dynamically scaled from 0.68 to 1.95 V in 10-mV step with I2C controlled 7 bits VID. The VID voltage transition slew rate is programmable with 3-bits control through I2C bus to optimize overshoot/undershoot during VID voltage transition.

Each buck in TPS65263 can be I2C controlled for enabling/disabling output voltage, setting the pulse skipping mode (PSM) or force continuous current mode (FCC) at light load condition and reading the power good status, overcurrent warning and die temperature warning.

The TPS65263 features overvoltage, overcurrent, short-circuit, and overtemperature protection.

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Download

Technical documentation

Design & development

For additional terms or required resources, click any title below to view the detail page where available.

Hardware development

EVALUATION BOARD Download
99
Description

The TPS65263EVM-645 evaluation module (EVM) is a fully assembled and tested circuit for evaluating the TPS65263. The EVM contains input and output connectors as well as control jumpers to ease evaluation of device features.

Features
  • Input voltage range from 4.5V to 18V
  • Buck1: 1.5V/3A; Buck2: 1.2V/2A; Buck3: 2.5V/2A
  • Fsw 600KHZ
  • I2 C controlled 7-bits VID programmable Output voltage from 0.68V to 1.95V
  • The 180¡ã out-of-phase minimizes the input filter requirements

Software development

GUI FOR EVALUATION MODULE (EVM) Download
SLVC578.ZIP (516 KB)

Design tools & simulation

SIMULATION MODEL Download
SLVMAA8A.ZIP (53 KB) - PSpice Model
SIMULATION MODEL Download
SLVMAA9.ZIP (74 KB) - PSpice Model
SIMULATION MODEL Download
SLVMAD8.ZIP (70 KB) - TINA-TI Reference Design
SIMULATION MODEL Download
SLVMAD9.ZIP (23 KB) - TINA-TI Spice Model
SIMULATION MODEL Download
SLVMAE0.ZIP (383 KB) - TINA-TI Reference Design
SIMULATION MODEL Download
SLVMAE1.ZIP (8 KB) - TINA-TI Spice Model
SIMULATION TOOL 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
  • (...)

CAD/CAE symbols

Package Pins Download
VQFN (RHB) 32 View options

Ordering & quality

Information included:
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  • REACH
  • Device marking
  • Lead finish/Ball material
  • MSL rating/Peak reflow
  • MTBF/FIT estimates
  • Material content
  • Qualification summary
  • Ongoing reliability monitoring

Recommended products may have parameters, evaluation modules or reference designs related to this TI product.

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