TPS40303

ACTIVE

3V to 20V Input, 25A Synchronous Buck Controller with FSS, 300kHz

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Product details

Parameters

Vin (Min) (V) 3 Vin (Max) (V) 20 Vout (Min) (V) 0.6 Vout (Max) (V) 18 Iout (Max) (A) 25 Iq (Typ) (mA) 2.5 Switching frequency (Min) (kHz) 300 Switching frequency (Max) (kHz) 300 Features Enable, Power Good, Pre-Bias Start-Up, Spread Spectrum, Synchronous Rectification Operating temperature range (C) -40 to 125 Regulated outputs (#) 1 Number of Phases 1 Rating Catalog open-in-new Find other Buck controllers (external switch)

Package | Pins | Size

VSON (DRC) 10 9 mm² 3 x 3 open-in-new Find other Buck controllers (external switch)

Features

  • Input Voltage Range From 3 V to 20 V
  • 300-kHz (TPS40303), 600-kHz (TPS40304), and 1.2-MHz (TPS40305) Switching Frequencies
  • High- and Low-Side FET RDS(on) Current Sensing
  • Programmable Thermally Compensated OCP Levels
  • Programmable Soft Start
  • 600-mV, 1% Reference Voltage
  • Voltage Feed-Forward Compensation
  • Supports Prebiased Output
  • Frequency Spread Spectrum
  • Thermal Shutdown Protection at 145°C
  • 10-Pin 3-mm × 3-mm VSON Package With Ground Connection to Thermal Pad
  • Create a Custom Design Using the TPS4030x With the WEBENCH® Power Designer

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Description

The TPS4030x is a family of cost-optimized synchronous buck controllers that operate from 3-V to 20-V input. The controller implements a voltage-mode control architecture with input-voltage feed-forward compensation that responds instantly to a change in input voltage. The switching frequency is fixed at 300 kHz, 600 kHz, or 1.2 MHz.

The frequency spread-spectrum (FSS) feature adds to the switching frequency, significantly reducing the peak EMI noise and making it much easier to comply with EMI standards.

The TPS4030x offers design with a variety of user-programmable functions, including soft start, overcurrent protection (OCP) levels, and loop compensation.

OCP level may be programmed by a single external resistor connected from the LDRV pin to circuit ground. During initial power on, the TPS4030x enters a calibration cycle, measures the voltage at the LDRV pin, and sets an internal OCP voltage level. During operation, the programmed OCP voltage level is compared to the voltage drop across the low-side FET when it is on to determine whether there is an overcurrent condition. The TPS4030x then enters a shutdown and restart cycle until the fault is removed.

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Technical documentation

= Top documentation for this product selected by TI
No results found. Please clear your search and try again. View all 9
Type Title Date
* Datasheet TPS4030x 3-V to 20-V Input, Voltage Mode, Synchronous Buck Controller datasheet (Rev. D) Mar. 12, 2018
Selection guides Power Management Guide 2018 (Rev. R) Jun. 25, 2018
Application notes Common mistakes made in controller designs for power converters Mar. 26, 2018
Selection guides DC/DC Buck Controller Solutions Selection Guide Feb. 06, 2018
Technical articles Power Tips: Power sharing in USB Type-C applications Jun. 08, 2016
Application notes SMT Guidelines for Stacked Inductor (Inductor On Top) on Voltage Regulator IC Feb. 22, 2016
User guides CSD163CEVM-591 User's Guide Mar. 02, 2010
User guides TPS40304EVM-353 User's Guide Feb. 18, 2010
User guides TPS40305EVM-488 User's Guide Feb. 18, 2010

Design & development

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Design tools & simulation

SIMULATION MODELS Download
SLIM115A.ZIP (92 KB) - PSpice Model
SIMULATION MODELS Download
SLIM233.ZIP (74 KB) - TINA-TI Spice Model
SIMULATION MODELS Download
SLIM234.TSC (277 KB) - TINA-TI Reference Design
SIMULATION MODELS Download
SLIM235.TSC (267 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)

Reference designs

REFERENCE DESIGNS Download
36W USB Dual Port USB Type-C™ PD Reference Design with Port Power Management DC/DC Charger
PMP20172 — The PMP20172 reference design provides up to 36W on two USB Type-C outputs.  Input is a 17VDC bus.  The two outputs implement port power management.  If only one port is in use, it is allocated the full 36W.  If both ports are in use, power is split into 18W on each port.  (...)
document-generic Schematic document-generic User guide
REFERENCE DESIGNS Download
5V In 33W Univ 4-Bit VID I/F AVS Pwr Supply for TCI6636K2H/6638K2H Reference Design
PMP7208 This reference design aims to supply the AVS core supply for Kepler DSPs like the C6638. The C66x series uses SmartReflex technology to enable the DSP to control its supply voltage. In order to meet this requirement, this design combines the TPS40303 Synchronous PWM Buck Controller with external (...)
document-generic Schematic document-generic User guide
REFERENCE DESIGNS Download
Power Reference Design for Positron Emission Tomography (PET) Scanner Processing and Control Board
PMP5754 A 12V-20V input, 95W, five (5) rail design for a PET Scanner control board with the TPS40303/304 PWM step-down controllers and Dual-Cool CSD16322Q5C NexFETs powering DDR core, DSP core, and analog circuitry like detectors, front-end amplifiers/filters and Analog-to-Digital Converters.
document-generic Schematic document-generic User guide
REFERENCE DESIGNS Download
Uses TPS40303, to implement sync buck with VID
PMP5672 — Universal buck converter provides up to 25A load current for DSPcores or similar w/ 4-bit VID interface, TPS40303
Design files
REFERENCE DESIGNS Download
Uses TPS40303 to generate 1.1V@30A output
PMP5575 — High current, up to 30Amax core power supply to power DSPs, ASICs or similar out of a 5V bus, single phase w/ TPS40303
Design files
REFERENCE DESIGNS Download
TPS40303 Step-Down Regulator Delivering 0.7V-0.9V at 6A Output with VID Reference Design
PMP4709 — PMP4709 is a single-phase synchronous switching regulator with VID accepting an input voltage range of 7.0Vin to 14.0Vin and providing an output voltage of 0.8Vout capable of supplying 6A of current. The output voltage is adjusted by a 4-bit VID interface.
Design files
REFERENCE DESIGNS Download
TPS40303 Step-Down Regulator Delivering 1.8V at 20A Reference Design
PMP5032 PMP5032 is a single-phase synchronous switching regulator accepting an input voltage range of 3Vin to 13.2Vin and providing an output voltage of 1.8Vout capable of supplying 20A of current.
REFERENCE DESIGNS Download
TPS40303 Step-Down Regulator Delivering 1.2V at 24A Reference Design
PMP5152 PMP5152 is a single-phase synchronous switching regulator accepting input voltages of 3.3Vin or 12Vin and providing an output voltage of 1.2Vout capable of supplying 24A of current.
Design files
REFERENCE DESIGNS Download
TPS40303 Step-Down Regulator delivering 1.2V at 10A Reference Design
PMP5140 — PMP5140 is a single-phase synchronous switching regulator accepting input voltages of 3.3Vin or 12Vin and providing an output voltage of 1.2Vout capable of supplying 10A of current.

CAD/CAE symbols

Package Pins Download
VSON (DRC) 10 View options

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