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TPS62811-Q1 ACTIVE Automotive 2.75-V to 6-V, 1-A step-down converter in a 2mm x 3mm wettable-flanks QFN package New generation 1-A automotive family device with higher output accuracy

Product details

Vin (Min) (V) 2.3 Vin (Max) (V) 6 Vout (Min) (V) 1.8 Vout (Max) (V) 1.8 Iout (Max) (A) 1 Iq (Typ) (uA) 15 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
Vin (Min) (V) 2.3 Vin (Max) (V) 6 Vout (Min) (V) 1.8 Vout (Max) (V) 1.8 Iout (Max) (A) 1 Iq (Typ) (uA) 15 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
WSON (DRV) 6 4 mm² 2 x 2
  • Qualified for Automotive Applications
  • High Efficiency Step-Down Converter
  • Output Current up to 1000 mA
  • VIN Range From 2.3 V to 6 V
  • 2.25-MHz Fixed Frequency Operation
  • Power Save Mode at Light Load Currents
  • Output Voltage Accuracy in PWM mode ±1.5%
  • Fixed Output Voltage Options
  • Typical 15-µA Quiescent Current
  • 100% Duty Cycle for Lowest Dropout
  • Voltage Positioning at Light Loads
  • Available in a 2-mm × 2-mm × 0.8-mm SON
    Package
  • Qualified for Automotive Applications
  • High Efficiency Step-Down Converter
  • Output Current up to 1000 mA
  • VIN Range From 2.3 V to 6 V
  • 2.25-MHz Fixed Frequency Operation
  • Power Save Mode at Light Load Currents
  • Output Voltage Accuracy in PWM mode ±1.5%
  • Fixed Output Voltage Options
  • Typical 15-µA Quiescent Current
  • 100% Duty Cycle for Lowest Dropout
  • Voltage Positioning at Light Loads
  • Available in a 2-mm × 2-mm × 0.8-mm SON
    Package

The TPS6229x-Q1 is a highly efficient synchronous step-down buck converter optimized for automotive low input voltage applications, and provides up to 1000-mA output current..

With an input voltage range of 2.3 V to 6 V, and an output voltage accuracy of 1.5%, the device powers a large variety of automotive applications.

The TPS6229x-Q1 operates at 2.25-MHz fixed switching frequency and enters Power Save Mode operation with typical quiescent current of 15 µA at light load currents to maintain a 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. The TPS6229x-Q1 allows the use of small inductors and capacitors to achieve a small solution size.

The TPS6229x-Q1 is available in a 2-mm × 2-mm 6-pin SON package.

The TPS6229x-Q1 is a highly efficient synchronous step-down buck converter optimized for automotive low input voltage applications, and provides up to 1000-mA output current..

With an input voltage range of 2.3 V to 6 V, and an output voltage accuracy of 1.5%, the device powers a large variety of automotive applications.

The TPS6229x-Q1 operates at 2.25-MHz fixed switching frequency and enters Power Save Mode operation with typical quiescent current of 15 µA at light load currents to maintain a 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. The TPS6229x-Q1 allows the use of small inductors and capacitors to achieve a small solution size.

The TPS6229x-Q1 is available in a 2-mm × 2-mm 6-pin SON package.

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Type Title Date
* Data sheet TPS6229x-Q1 1-A Step Down Converter in 2-mm × 2-mm SON Package datasheet (Rev. B) 13 Feb 2016
Technical article Minimize the impact of the MLCC shortage on your power application 29 Mar 2019
Application note Performing Accurate PFM Mode Efficiency Measurements (Rev. A) 11 Dec 2018
Application note QFN and SON PCB Attachment (Rev. B) 24 Aug 2018
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 t 24 Oct 2017
Analog Design Journal Testing tips for applying external power to supply outputs without an input volt 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

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