TPS62260

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2.25MHz 600mA Step-Down Converter in 2x2mm SON/TSOT23 Package

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Product details

Parameters

Vin (Min) (V) 2 Vin (Max) (V) 6 Vout (Min) (V) 0.6 Vout (Max) (V) 6 Iout (Max) (A) 0.6 Iq (Typ) (uA) 15 Switching frequency (Min) (kHz) 2000 Switching frequency (Max) (kHz) 2500 Features Enable, Forced PWM, Light Load Efficiency, Synchronous Rectification Operating temperature range (C) -40 to 85 Rating Catalog Regulated outputs (#) 1 open-in-new Find other Buck converters (integrated switch)

Package | Pins | Size

SOT-23-THN (DDC) 5 8 mm² 2.9 x 2.8 WSON (DRV) 6 4 mm² 2 x 2 open-in-new Find other Buck converters (integrated switch)

Features

  • High Efficiency Step-Down Converter
  • Output Current up to 600 mA
  • VIN Range from 2 V to 6 V for Li-ion Batteries with
    Extended Voltage Range
  • 2.25-MHz Fixed Frequency Operation
  • Power Save Mode at Light Load Currents
  • Output Voltage Accuracy in PWM Mode ±1.5%
  • Typical 15-µA Quiescent Current
  • 100% Duty Cycle for Lowest Dropout
  • Voltage Positioning at Light Loads
  • Available in a SOT (5) and 2-mm × 2-mm × 0.8-
    mm WSON (6) Package
  • Allows <1-mm Solution Height
  • APPLICATIONS
    • Mobile Phones, Smart Phones
    • Low Power DSP Supply
    • Portable Media Players
    • Point-of-Load (POL) Applications

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Description

The TPS6226x device is a highly efficient synchronous step-down DC/DC converter. The TPS6226x provides up to 600-mA output current from a single Li-Ion cell, and is ideal for battery-powered applications such as mobile phones and other portable equipment.

With an wide input voltage range of 2 V to 6 V, the device also supports two- and three-cell alkaline batteries, 3.3-V and 5-V input voltage rails.

The TPS6226x operates at 2.25-MHz fixed-switching frequency, and enters power save mode operation at light load currents to maintain high efficiency over the entire load current range.

The power save mode is optimized for low-output voltage ripple. For low noise applications, the device can be forced into fixed frequency pulse-width modulation (PWM) mode by pulling the MODE pin high. In the shutdown mode, the current consumption is reduced to less than 1 µA. The TPS6226x allows the use of small inductors and capacitors to achieve a small solution size.

The TPS6226x operates over a free air temperature range of –40°C to 85°C. It is available in a 5-pin SOT and a 6-pin 2-mm × 2-mm WSON package.

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Technical documentation

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Type Title Date
* Datasheet TPS6226x 2.25-MHz 600-mA Step Down Converter in 2 x 2 WSON and SOT Package datasheet (Rev. E) Jul. 30, 2015
Application note Methods of output-voltage adjustment for DC/DC converters Jun. 14, 2019
Technical articles Minimize the impact of the MLCC shortage on your power application Mar. 29, 2019
Application note Performing Accurate PFM Mode Efficiency Measurements (Rev. A) Dec. 11, 2018
Application note QFN and SON PCB Attachment (Rev. B) Aug. 24, 2018
User guide TPS62260LED-338 Three-Color LED Driver Evaluation Module (EVM) User's Guide (Rev. B) Aug. 07, 2018
Selection guide Power Management Guide 2018 (Rev. R) Jun. 25, 2018
Application note Understanding 100% mode in low-power DC/DC converters Jun. 22, 2018
Application note A Topical Index of TI Low Power Buck DC/DC Application Notes Jan. 17, 2018
Application note Optimizing Transient Response of Internally Compensated DC-DC Converters (Rev. B) Nov. 29, 2017
Application note Achieving a clean startup by using a DC/DC converter with a precise enable-pin t Oct. 24, 2017
Application note Extending the Soft Start Time Without a Soft Start Pin (Rev. B) Jun. 15, 2017
Application note Testing tips for applying external power to supply outputs without an input volt Oct. 24, 2016
Application note Basic Calculation of a Buck Converter's Power Stage (Rev. B) Aug. 17, 2015
Technical articles Maker takes solar energy on-the-go Mar. 24, 2015
Application note Five steps to a great PCB layout for a step-down converter Jan. 29, 2015
Application note Design considerations for a resistive feedback divider in a DC/DC converter Apr. 26, 2012
Application note Understanding the Absolute Maximum Ratings of the SW Node (Rev. A) Jan. 13, 2012
Application note IQ: What it is, what it isn’t, and how to use it Jun. 17, 2011
User guide TPS622x0EVM-229 Jul. 26, 2007

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 TPS62260EVM-229 facilitates evaluation of the TPS62260 2.25 MHz, 600 mA step-down converter in 2x2SON/TSOT-23 package.

Features
  • High Efficiency Step Down Converter
  • Output Current up to 600 mA
  • Wide VIN Range from 2.0 V to 6 V for Li-Ion Batteries with Extended Voltage Range
  • 2.25 MHz Fixed Frequency Operation
  • Power Save Mode at Light Load Currents
  • Output Voltage Accuracy in PWM mode ±1%
  • Typ. 15 mA Quiescent Current
  • 100% Duty Cycle for (...)
EVALUATION BOARD Download
19
Description

The TPS62260LED-338 evaluation module controls the color and brightness of a lamp or runs an automatic color light animation program. The color is generated by three LEDs (red, green and blue). An MSP430 ultra-low power microcontroller controls the brightness of each LED with constant current (...)

Features
  • 2 V to 6 V Supply Voltage Range
  • Output Current up to 600 mA
  • 2.25 MHz Fixed Frequency Operation
  • Power Save Mode at Light Load Currents
  • Typ. 15 μA Quiescent Current
  • Soft Start
  • Voltage Positioning at Light Loads

Software development

SUPPORT SOFTWARE Download
SLVC161.ZIP (7 KB)

Design tools & simulation

SIMULATION MODEL Download
SLIM048A.ZIP (37 KB) - PSpice Model
SIMULATION MODEL Download
SLVM260.TSC (811 KB) - TINA-TI Reference Design
SIMULATION MODEL Download
SLVM261.ZIP (26 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
  • (...)
BILL OF MATERIALS (BOM) Download
SLVR349.PDF (260 KB)
GERBER FILE Download
SLVC124.ZIP (106 KB)
GERBER FILE Download
SLVC134.ZIP (106 KB)
GERBER FILE Download
SLVC780.ZIP (138 KB)

Reference designs

REFERENCE DESIGNS Download
Ultra Mobile, Low Power DLP® Pico™ qHD Display Reference Design
TIDA-080002 — The 0.23 qHD DLP chipset is an affordable platform enabling the use of DLP technology with embedded host processor. This chipset is incorporated in to this reference design to enable a low power, on-demand free-form sub-system display for a variety of applications.
document-generic Schematic
REFERENCE DESIGNS Download
Portable, Low Power HD Display with Increased Brightness Reference Design Using DLP® Technology
TIDA-01571 — This display reference design features the DLP Pico™ 0.3-inch TRP HD 720p display chipset and is implemented in the DLP LightCrafter™ Display 3010-G2 evaluation module (EVM). It enables the use of HD resolution for projection display applications such as mobile smart TV, virtual (...)
document-generic Schematic
REFERENCE DESIGNS Download
DEVPACK-LED-AUDIO
TIDC-DEVPACK-LED-AUDIO The LED Audio DevPack enables Industrial IoT lighting applications. Plug it into the SensorTag DevPack expansion header and expand your design with four high-power LEDs from Osram. The LED Audio DevPack makes it easy to create LED lighting applications controlled from a mobile phone with the (...)
document-generic Schematic
REFERENCE DESIGNS Download
Digital Addressable Lighting Interface (DALI) Reference Design
TIDM-MSP-DALI The Digital Addressable Lighting Interface (DALI) standard defines a common communication protocol and physical interface standard for use in lighting control applications. This design uses the existing TPS62260LED-338 EVM and a level translation board to implement a DALI LED device type control (...)
document-generic Schematic

CAD/CAE symbols

Package Pins Download
SOT-23-THIN (DDC) 5 View options
WSON (DRV) 6 View options

Ordering & quality

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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

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