TPS62170-Q1

ACTIVE

3-17V 0.5A Automotive Step-Down Converter in 2x2 QFN package

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Product details

Parameters

Vin (Min) (V) 3 Vin (Max) (V) 17 Vout (Min) (V) 0.9 Vout (Max) (V) 6 Iout (Max) (A) 0.5 Regulated outputs (#) 1 Switching frequency (Min) (kHz) 2250 Switching frequency (Max) (kHz) 2250 Features Enable, Light Load Efficiency, Output Discharge, Power Good, Synchronous Rectification Control mode Constant on-time (COT), DCS-Control TI functional safety category Functional Safety-Capable Duty cycle (Max) (%) 100 Type Converter Operating temperature range (C) -40 to 125 Rating Automotive 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)

Features

  • DCS-Control™ topology
  • Qualified for automotive applications
  • AEC-Q100 qualified with the following results:
    • Device temperature grade: –40°C to 125°C operating junction temperature range
    • Device HBM ESD classification level H2
    • Device CDM ESD classification level C4B
  • Functional Safety-Capable
    • Documentation available to aid functional safety system design
  • Input voltage range: 3 V to 17 V
  • Up to 500-mA output current
  • Adjustable output voltage from 0.9 V to 6 V
  • Fixed output voltage versions
  • Seamless power save mode transition
  • Typically 17-µA quiescent current
  • Power-good output
  • 100% Duty cycle mode
  • Short circuit protection
  • Overtemperature protection
  • Pin-to-pin compatible with TPS62160-Q1
  • Available in a 2 × 2 mm, WSON-8 package
  • Create a custom design using the TPS62170-Q1 with the WEBENCH® power designer

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Description

The TPS6217x-Q1 family is an easy to use synchronous step-down DC-DC converter optimized for applications with high power density. A high switching frequency of typically 2.25 MHz allows the use of small inductors and provides fast transient response as well as high output voltage accuracy by utilization of the DCS-Control topology.

With their wide operating input voltage range of 3 V to 17 V, the devices are ideally suited for systems powered from either a Li-Ion or other battery as well as from 12-V intermediate power rails. It supports up to 0.5-A continuous output current at output voltages between 0.9 V and 6 V (with 100% duty cycle mode).

Power sequencing is also possible by configuring the Enable and open-drain Power Good pins.

In Power Save Mode, the devices draw quiescent current of about 17 µA from VIN. Power Save Mode, entered automatically and seamlessly if load is small, maintains high efficiency over the entire load range. In Shutdown Mode, the device is turned off and shutdown current consumption is less than 2 µA.

The device, available in adjustable and fixed output voltage versions, is packaged in an 8-pin WSON package measuring 2 × 2 mm (DSG).

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Same functionality but is not pin-for-pin or parametrically equivalent to the compared device:
TPS62160-Q1 ACTIVE 3V-17V 1A Automotive Step-Down Converters in 2x2SON Pin-compatible product with higher output current (1 A).

Technical documentation

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Type Title Date
* Datasheet 3-V to 17-V 0.5-A Step-Down Converters with DCS-Control datasheet (Rev. E) May 26, 2020
Application notes TPS6217x-Q1 Functional Safety FIT Rate and Failure Mode Distribution Jan. 27, 2020
Application notes 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 notes Understanding 100% mode in low-power DC/DC converters Jun. 22, 2018
Application notes A Topical Index of TI Low Power Buck DC/DC Application Notes Jan. 17, 2018
Application notes Achieving a clean startup by using a DC/DC converter with a precise enable-pin t Oct. 24, 2017
Application notes Testing tips for applying external power to supply outputs without an input volt Oct. 24, 2016
Application notes Understanding frequency variation in the DCS-Control(TM) topology Oct. 30, 2015
Technical articles Power over your Coax Mar. 25, 2015
Application notes Five steps to a great PCB layout for a step-down converter Jan. 29, 2015
Technical articles Automotive Trends: Cameras in Every Car Jan. 14, 2015
Application notes Low-Noise CMOS Camera Supply Dec. 15, 2014
Application notes Step-Down Converter With Input Overvoltage Protection Sep. 04, 2014

Design & development

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

Hardware development

EVALUATION BOARDS Download
document-generic User guide
$25.00
Description

The TPS62170EVM-627 (HPA627-002) uses the TPS62170 adjustable version and is set to a 3.3-V output. The EVM operates with full-rated performance with an input voltage between 3.7 V and 17 V. The TPS62170 is a 0.5-A, synchronous, step-down converter in a 2x2-mm, 8-pin WSON package. Both fixed and (...)

Design tools & simulation

SIMULATION MODELS Download
SLVM432A.ZIP (44 KB) - PSpice Model
SIMULATION MODELS Download
SLVM503A.ZIP (52 KB) - TINA-TI Spice Model
SIMULATION MODELS Download
SLVM504A.ZIP (164 KB) - TINA-TI Reference Design
GERBER FILES Download
SLVC780.ZIP (138 KB)

Reference designs

REFERENCE DESIGNS Download
Automotive 1MP Camera Module Reference Design with YUV422 Output, FPD-Link III and Power over Coax
TIDA-01002 — The TIDA-01002 Reference Design provides uncompressed, 1 Megapixel, HDR, YUV422 video for use in ADAS and infotainment systems. It uses TIs FPD-Link III SerDes technology and the ON Semiconductor® AS0140AT CMOS Imager to transmit video data, bidirectional control signals and power all over a (...)
document-generic Schematic document-generic User guide
REFERENCE DESIGNS Download
Automotive Camera Module Reference Design with 1MPixel Imager, Bayer Video Output & Power over Coax
TIDA-01004 — The TIDA-01004 reference design is a remote automotive camera module that connects over a high speed serial video interface to a display or machine vision processing system. It uses TIs FPD-Link III SerDes technology to transmit uncompressed MegaPixel video data, bidirectional control signals and (...)
document-generic Schematic document-generic User guide
REFERENCE DESIGNS Download
Automotive 1.3M Camera Module Reference Design with OV10640, DS90UB913A and Power over Coax
TIDA-00421 This camera design demonstrates a very small solution size for 1.3 Megapixel automotive cameras. Only a single coax connection is required to provide digital video, power, camera control and diagnostics. Output video format is 10-bit up to 100MHz or 12-bit up to 75MHz.
document-generic Schematic document-generic User guide
REFERENCE DESIGNS Download
Automotive Isolated 15V/4.5W Bias Power Supply Reference Design
PMP30227 — This reference design displays a power supply solution to generate an isolated 15V rail with a maximum load current of 300mA from an input voltage between 8V and 28V. It also contains an optional Buck converter on the secondary side to provide a 5V rail with 200mA load current for a microcontroller (...)
document-generic Schematic document-generic User guide
REFERENCE DESIGNS Download
Optimized Automotive 1M Pixel Camera Module Design for Uncompressed Digital Video over Coax
TIDA-00262 The TIDA-00262 Reference Design is a high speed serial video interface to connect a remote automotive camera module to a display or machine vision processing system. It uses TIs FPD-Link III SerDes technology to transmit uncompressed MegaPixel video data, bidirectional control signals and power (...)
document-generic Schematic document-generic User guide
REFERENCE DESIGNS Download
Low Noise CMOS Camera Supply Reference Design
PMP9758 This reference design details a power management circuit which is capable of supplying all rails of a CMOS camera supply.  All rails, even highly sensitive analog rails of the image sensor, can be supplied directly without the need of additional filters. This way the power management solution (...)
document-generic Schematic

CAD/CAE symbols

Package Pins Download
WSON (DSG) 8 View options

Ordering & quality

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