3MHz, 2A Automotive Step-Down Converter in 2x2 SON Package


Product details


Vin (Min) (V) 2.9 Vin (Max) (V) 6 Vout (Min) (V) 0.8 Vout (Max) (V) 6 Iout (Max) (A) 2 Iq (Typ) (uA) 18 Switching frequency (Min) (kHz) 2600 Switching frequency (Max) (kHz) 3400 Features Enable, Light Load Efficiency, Output Discharge, Spread Spectrum, Synchronous Rectification Operating temperature range (C) -40 to 125 Rating Automotive Regulated outputs (#) 1 open-in-new Find other Buck converters (integrated switch)

Package | Pins | Size

WSON (DSG) 8 4 mm² 2 x 2 open-in-new Find other Buck converters (integrated switch)


  • New product available: TPS628502-Q1, 6-V Step-Down Converter in SOT583 Package
  • AEC-Q100 qualified with the following results:
    • Device temperature grade 1: –40°C to 125°C operating junction temperature range
    • Device HBM ESD classification level 2
    • Device CDM ESD classification level C4B
  • Functional Safety-Capable
  • 3-MHz Switching frequency
  • VIN Range from 2.9 V to 6 V
  • Up to 97% efficiency
  • Power save mode and 3-MHz fixed PWM mode
  • Power good output
  • Output voltage accuracy in PWM mode ±1.5%
  • Output capacitor discharge function
  • Typical 18-µA quiescent current
  • 100% Duty cycle for lowest dropout
  • Voltage Positioninp
  • Clock dithering
  • Available in a 2 × 2 × 0.75-mm WSON
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The TPS62065-Q1 and TPS62067-Q1 device is a highly-efficient synchronous step-down DC-DC converter. The device provides up to 2-A output current.

With an input voltage range of 2.9 V to 6 V the device is a perfect fit for power conversion from a 5-V or
3.3-V system supply rail. The TPS62065-Q1 and TPS62067-Q1 device operates at 3-MHz fixed 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 TPS62065-Q1 device can be forced into fixed frequency PWM mode by pulling the MODE pin high. The TPS62067-Q1 provides an open drain power good output. In the shutdown mode, the current consumption is reduced to 5 µA and an internal circuit discharges the output capacitor. The TPS62065-Q1 and TPS62067-Q1 device is optimized for operation with a tiny 1-µH inductor and a small 10-µF output capacitor to achieve smallest solution size and high regulation performance.

The new product, TPS628502-Q1, offers reduced BOM cost and size, higher efficiency and other features.

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Technical documentation

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Type Title Date
* Data sheet TPS6206x-Q1 3-MHz 2-A Step-Down Converter in 2 × 2 SON Package datasheet (Rev. A) Mar. 04, 2020
Functional safety information TPS6206x-Q1 Functional Safety, FIT Rate, Failure Mode Distribution and Pin FMA (Rev. B) Jan. 26, 2021
Application note Methods of output-voltage adjustment for DC/DC converters Jun. 14, 2019
Technical article Minimize the impact of the MLCC shortage on your power application Mar. 29, 2019
Application note Understanding 100% mode in low-power DC/DC converters Jun. 22, 2018
Application note Achieving a clean startup by using a DC/DC converter with a precise enable-pin t Oct. 24, 2017
Application note Testing tips for applying external power to supply outputs without an input volt Oct. 24, 2016
Application note Five steps to a great PCB layout for a step-down converter Jan. 29, 2015

Design & development

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

Hardware development

document-generic User guide
The TPS62065-67EVM-347 is a fully assembled and tested circuit for evaluating the TPS62065 and TPS62067 2A Step-Down Converter.
  • 3MHz switching frequency
  • VIN range from 2.3V to 6V
  • 3 MHz Fixed Frequency Operation
  • Power Save Mode
  • Fixed Frequency PWM Mode
  • Power Good Output
  • Output Voltage accuracy in PWM mode ±1.5%
  • Output discharge function
  • Fixed output voltage options
  • Typ. 18 μA Quiescent current
  • 100% Duty Cycle for Lowest Dropout
  • Voltage (...)

Design tools & simulation

SLIM249B.ZIP (110 KB) - PSpice Model
SLVM148.TSC (894 KB) - TINA-TI Reference Design
SLVM149.TSC (895 KB) - TINA-TI Reference Design
SLVM150.ZIP (81 KB) - TINA-TI Spice Model
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 (...)
  • 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
  • (...)
SLVC780.ZIP (138 KB)

Reference designs

ADAS power reference design with improved voltage supervision
TIDA-050008 This automotive power reference design supports additional precision voltage supervision and window watchdog for safety MCUs in advanced driver assistance systems (ADAS). These ADAS systems can control driving functions, such as automated emergency brake, lane keep assist and adaptive cruise (...)
document-generic Schematic

CAD/CAE symbols

Package Pins Download
WSON (DSG) 8 View options

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