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TPS62261-Q1

ACTIVE

Automotive 2V to 6V, 2.25MHz Fixed Frequency 600mA Buck Converter with 1.8V Fixed Output Voltage

Product details

Vin (min) (V) 2 Vin (max) (V) 6 Vout (min) (V) 1.8 Vout (max) (V) 1.8 Iout (max) (A) 0.6 Iq (typ) (mA) 0.015 Switching frequency (min) (kHz) 2250 Switching frequency (max) (kHz) 2250 Features Enable, Forced PWM, Light load efficiency, Synchronous Rectification Operating temperature range (°C) -40 to 105 Rating Automotive Regulated outputs (#) 1 Control mode Voltage mode Duty cycle (max) (%) 100 Type Converter
Vin (min) (V) 2 Vin (max) (V) 6 Vout (min) (V) 1.8 Vout (max) (V) 1.8 Iout (max) (A) 0.6 Iq (typ) (mA) 0.015 Switching frequency (min) (kHz) 2250 Switching frequency (max) (kHz) 2250 Features Enable, Forced PWM, Light load efficiency, Synchronous Rectification Operating temperature range (°C) -40 to 105 Rating Automotive Regulated outputs (#) 1 Control mode Voltage mode Duty cycle (max) (%) 100 Type Converter
WSON (DRV) 6 4 mm² 2 x 2
  • Qualified for Automotive Applications
  • High-Efficiency Step-Down Converter
  • Output Current up to 600 mA
  • Wide 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%
  • 15-µA (Typ) Quiescent Current
  • 100% Duty Cycle for Lowest Dropout
  • Soft Start
  • Voltage Positioning at Light Loads
  • Available in a Small 2×2×0,8-mm SON Package
  • Allows <1-mm Solution Height
  • APPLICATIONS
    • PDAs, Pocket PCs
    • Low Power DSP Supply
    • Portable Media Players
    • POL applications

  • Qualified for Automotive Applications
  • High-Efficiency Step-Down Converter
  • Output Current up to 600 mA
  • Wide 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%
  • 15-µA (Typ) Quiescent Current
  • 100% Duty Cycle for Lowest Dropout
  • Soft Start
  • Voltage Positioning at Light Loads
  • Available in a Small 2×2×0,8-mm SON Package
  • Allows <1-mm Solution Height
  • APPLICATIONS
    • PDAs, Pocket PCs
    • Low Power DSP Supply
    • Portable Media Players
    • POL applications

The TPS6226x devices are high-efficiency synchronous step-down dc-dc converters optimized for battery powered applications. It provides up to 600-mA output current from a single Li-Ion cell and is ideal to power mobile phones and other portable applications.

With an wide input voltage range of 2 V to 6 V, the device supports applications powered by Li-Ion batteries with extended voltage range, 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 PWM mode by pulling the MODE pin high. In the shutdown mode, the current consumption is reduced to less than 1 µA. TPS6226x allows the use of small inductors and capacitors to achieve a small solution size.

The TPS6226x is available in a very small 2×2mm 6-pin SON package.

The TPS6226x devices are high-efficiency synchronous step-down dc-dc converters optimized for battery powered applications. It provides up to 600-mA output current from a single Li-Ion cell and is ideal to power mobile phones and other portable applications.

With an wide input voltage range of 2 V to 6 V, the device supports applications powered by Li-Ion batteries with extended voltage range, 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 PWM mode by pulling the MODE pin high. In the shutdown mode, the current consumption is reduced to less than 1 µA. TPS6226x allows the use of small inductors and capacitors to achieve a small solution size.

The TPS6226x is available in a very small 2×2mm 6-pin SON package.

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Technical documentation

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Type Title Date
* Data sheet TPS6226x-Q1 2.25-MHz 600-mA Step-Down Converter datasheet (Rev. C) 23 Jul 2012
Application note QFN and SON PCB Attachment (Rev. C) PDF | HTML 06 Dec 2023
Analog Design Journal Understanding 100% mode in low-power DC/DC converters 22 Jun 2018
Analog Design Journal Achieving a clean startup by using a DC/DC converter with a precise enable-pin threshold 24 Oct 2017
Analog Design Journal Testing tips for applying external power to supply outputs without an input voltage 24 Oct 2016
Application note Basic Calculation of a Buck Converter's Power Stage (Rev. B) 17 Aug 2015
Analog Design Journal Five steps to a great PCB layout for a step-down converter 29 Jan 2015
Application note Understanding the Absolute Maximum Ratings of the SW Node (Rev. A) 13 Jan 2012
Analog Design Journal IQ: What it is, what it isn’t, and how to use it 17 Jun 2011

Design & development

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

Simulation model

TPS62261 TINA-TI Reference Design

SLVM115.TSC (119 KB) - TINA-TI Reference Design
Simulation model

TPS62261 TINA-TI Transient Reference Design

SLVM251.TSC (119 KB) - TINA-TI Reference Design
Simulation model

TPS62261 TINA-TI Transient Spice Model

SLVM114.ZIP (26 KB) - TINA-TI Spice Model
Simulation model

TPS62261 Unencrypted PSpice Transient Model Package (Rev. A)

SLIM049A.ZIP (36 KB) - PSpice Model
Simulation tool

PSPICE-FOR-TI — PSpice® for TI design and simulation tool

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 (...)
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Design guide: PDF
Schematic: PDF
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TIDA-00803 — Automotive Power Design for Front Camera Systems Using Single-Core Voltage Application Processors

This reference design provides a broadly-applicable automotive power design for a variety of ADAS processors, focusing on front and rear camera applications. The design supports an input range of 4 V to 48 V to supply common processor power rails through discrete components.  This adds to the (...)
Design guide: PDF
Schematic: PDF
Package Pins Download
WSON (DRV) 6 View options

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