TPS63050

ACTIVE

TPS6305x Single Inductor Buck-Boost with 1-A Switches and Adjustable Soft Start

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Product details

Parameters

Topology Buck-Boost Vin (Min) (V) 2.5 Vin (Max) (V) 5.5 Vout (Max) (V) 5.5 Vout (Min) (V) 2.5 Duty cycle (Max) (%) 100 Features Adjustable Current Limit, Enable, Light Load Efficiency, Load Disconnect, Power Good, Synchronous Rectification, UVLO Fixed Switch current limit (Typ) (A) 1 Switching frequency (Min) (kHz) 2500 Switching frequency (Max) (kHz) 2500 Iq (Typ) (mA) 0.043 Rating Catalog Iout (Max) (A) 0.5 Operating temperature range (C) -40 to 125 open-in-new Find other Buck-boost, inverting & split-rail converters (integrated switch)

Package | Pins | Size

DSBGA (YFF) 12 2 mm² 1.726 x 1.326 VQFN-HR (RMW) 12 6 mm² 2.5 x 2.5 open-in-new Find other Buck-boost, inverting & split-rail converters (integrated switch)

Features

  • Real buck or boost with seamless transition between buck and boost mode
  • 2.5 V to 5.5 V Input voltage range
  • 0.5-A Continuous output current: VIN ≥ 2.5 V,
    VOUT = 3.3 V
  • Adjustable and fixed output voltage version
  • Efficiency > 90% in boost mode and > 95% in buck mode
  • 2.5-MHz Typical switching frequency
  • Adjustable average input current limit
  • Adjustable soft-start time
  • Device quiescent current < 60 µA
  • Automatic power save mode or forced PWM mode
  • Load disconnect during shutdown
  • Overtemperature protection
  • Small 1.6mm x 1.2mm, 12-pin WCSP and 2.5mm x 2.5mm 12-pin HotRod™ QFN package
  • Create a custom design using the:

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open-in-new Find other Buck-boost, inverting & split-rail converters (integrated switch)

Description

The TPS6305x family of devices is a high efficiency, low quiescent-current buck-boost converter, suitable for applications where the input voltage is higher or lower than the output.

Continuous output current can go as high as 500 mA in boost mode and as high as 1 A in buck mode. The maximum average current in the switches is limited to a typical value of 1 A. The TPS6305x family of devices regulate the output voltage over the complete input voltage range by automatically switching between buck or boost mode depending on the input voltage, ensuring seamless transition between modes.

The buck-boost converter is based on a fixed-frequency, pulse-width-modulation (PWM) controller using synchronous rectification to obtain the highest efficiency. At low load currents, the converter enters Power Save Mode to maintain high efficiency over the complete load current range.

The PFM/PWM pin allows the user to select between automatic-PFM/PWM mode operation and forced-PWM operation. During PWM mode a fixed-frequency of typically 2.5 MHz is used. The output voltage is programmable using an external resistor divider, or is fixed internally on the chip. The converter can be disabled to minimize battery drain. During shutdown, the load is disconnected from the battery. The device is packaged in a 12-pin DSBGA and in a 12-pin HotRod package.

open-in-new Find other Buck-boost, inverting & split-rail converters (integrated switch)
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Similar but not functionally equivalent to the compared device:
TPS63030 ACTIVE High Efficient Single Inductor Buck-Boost Converter with 1-A Switches Extended input voltage range (down to 1.8 V).

Technical documentation

= Top documentation for this product selected by TI
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Type Title Date
* Datasheet TPS6305x Single Inductor Buck-Boost With 1-A Switches and Adjustable Soft Start datasheet (Rev. D) May 11, 2017
Application note A Topical Index of TI Low-Power Buck-Boost Converter Application Notes May 11, 2020
Application note Layer Design for Reducing Radiated EMI of DC to DC Buck-Boost Converters Apr. 22, 2020
Application note Improving Load Transient Response for Controlled Loads Sep. 12, 2019
Application note Different Methods to Drive LEDs Using TPS63XXX Buck-Boost Converters (Rev. C) Jul. 03, 2019
Application note Buck-boost Converter Battery Life Time Estimation for Wireless Network Cameras (Rev. A) May 28, 2019
Application note Buck-Boost Converters Solving Power Challenges in Optical Modules May 13, 2019
Application note Performing Accurate PFM Mode Efficiency Measurements (Rev. A) Dec. 11, 2018
Application note Understanding Undervoltage Lockout in Power Devices (Rev. A) Sep. 19, 2018
Application note QFN and SON PCB Attachment (Rev. B) Aug. 24, 2018
Application note Basic Calculations of a 4 Switch Buck-Boost Power Stage (Rev. B) Jul. 09, 2018
Selection guide Power Management Guide 2018 (Rev. R) Jun. 25, 2018
Application notes High Efficiency Battery Powered High Brightness LED Driver Using the TPS63000 Mar. 31, 2016
Technical articles Small, efficient buck-boost for portable industrial equipment Dec. 02, 2015
User guide User's Guide for TPS63050EVM-679 Jul. 13, 2015
Technical articles When to use a (4-switch) buck-boost converter Aug. 23, 2014
User guide User's Guide for TPS63050EVM-180 Jul. 12, 2013
Application note Extending the Soft Start Time in the TPS63010 Buck-Boost Converter Dec. 05, 2012
Application note Design considerations for a resistive feedback divider in a DC/DC converter Apr. 26, 2012
Application note Choosing an Appropriate Pull-up/Pull-down Resistor for Open Drain Outputs Sep. 19, 2011
Application note IQ: What it is, what it isn’t, and how to use it Jun. 17, 2011
Application note Minimizing Ringing at the Switch Node of a Boost Converter Sep. 15, 2006
Application note Dynamically Adjustable Output Using the TPS63000 Aug. 15, 2006

Design & development

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

Hardware development

EVALUATION BOARD Download
49
Description

The TPS63050EVM-180 is a customer evaluation module for the TPS63050. The TPS63050 is a small 1.6mm by 1.2mm, WCSP package buck-boost regulator with 1A switches. This EVM is set to an output voltage of 3.3V. Being a buck-boost the input voltage may vary from 2.5V to 5.5V while the EVM maintains the (...)

Features

 

  • 2.5V to 5.5V Input Voltage Range
  • 500 mA Output Current
  • Adjustable Current Limit
  • Programmable Soft Start
EVALUATION BOARD Download
49
Description

The TPS63050EVM-679 is a customer evaluation module for the TPS63050. The TPS63050 is a small 2.5mm by 2.5mm, RMW package buck-boost regulator with 1A switches. This EVM is set to an output voltage of 3.3V. Being a buck-boost, the input voltage may vary from 2.5V to 5.5V while the EVM maintains the (...)

Features

  • 2.5V to 5.5V Input Voltage Range
  • 500 mA Output Current
  • Adjustable Current Limit

Design tools & simulation

SIMULATION MODEL Download
SLVM997B.ZIP (87 KB) - PSpice 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
  • (...)
CALCULATION TOOL Download
SLVC808A.ZIP (1889 KB)
GERBER FILE Download
SLVC501.ZIP (317 KB)

Reference designs

REFERENCE DESIGNS Download
16-Bit 1-GSPS Digitizer Reference Design with AC and DC Coupled Fixed Gain Amplifier
TIDA-00823 — This reference design discusses the use and performance of the Ultra-Wideband, Fixed-gain high-speed amplifier, the LMH3401 to drive the high-speed analog-to-digital converter (ADC), the ADS54J60 device. Different options for common-mode voltages, power supplies, and interfaces are discussed and (...)
document-generic Schematic
REFERENCE DESIGNS Download
Wide Bandwidth Optical Front-end Reference Design
TIDA-00725 This reference design implements and measures a complete 120MHz wide bandwidth optical front end comprising a high speed transimpedance amplifier, fully differential amplifier, and high speed 14-bit 160MSPS ADC with JESD204B interface.  Hardware and software are provided to evaluate the (...)
document-generic Schematic
REFERENCE DESIGNS Download
Low Power RF PLL-Synthesizer Operating From a Single Cell Battery Reference Design
TIDA-00886 — The TIDA-00886 consists of the LMX2571,  high-performance, wideband PLLatinum™ low-power RF synthesizer, powered by a single cell battery using TPS63050 a DC-DC buck-boost converter.  The TIDA-00886 shows that the DC-DC buck-boost converter has a small to negligible effect on (...)
document-generic Schematic
REFERENCE DESIGNS Download
16-Bit 1-GSPS Digitizer Reference Design with AC and DC Coupled Variable Gain Amplifier
TIDA-00822 This reference design discusses the use and performance of the Digital Variable-Gain high-speed amplifier, the LMH6401, to drive the high-speed analog-to-digital converter (ADC), the ADS54J60 device. Different options for common-mode voltages, power supplies, and interfaces are discussed and (...)
document-generic Schematic

CAD/CAE symbols

Package Pins Download
DSBGA (YFF) 12 View options
VQFN-HR (RMW) 12 View options

Ordering & quality

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  • Lead finish/Ball material
  • MSL rating/Peak reflow
  • MTBF/FIT estimates
  • Material content
  • Qualification summary
  • Ongoing reliability monitoring

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