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TPS62171-Q1 Dataheets PDF



Part Number TPS62171-Q1
Manufacturers Texas Instruments
Logo Texas Instruments
Description 3-V to17-V 0.5-A Step-Down Converters
Datasheet TPS62171-Q1 DatasheetTPS62171-Q1 Datasheet (PDF)

Product Folder Order Now Technical Documents Tools & Software Support & Community TPS62170-Q1, TPS62171-Q1, TPS62172-Q1 SLVSCK7D – DECEMBER 2014 – REVISED FEBRUARY 2017 TPS6217x-Q1 3-V to17-V 0.5-A Step-Down Converters with DCS-Control™ 1 Features •1 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 CD.

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Product Folder Order Now Technical Documents Tools & Software Support & Community TPS62170-Q1, TPS62171-Q1, TPS62172-Q1 SLVSCK7D – DECEMBER 2014 – REVISED FEBRUARY 2017 TPS6217x-Q1 3-V to17-V 0.5-A Step-Down Converters with DCS-Control™ 1 Features •1 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 • 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 • Over Temperature 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 2 Applications • Automotive 12-V Rail Supplies • Power Over Coax POL Supply • Camera, Video Modules • LDO Alternative 3 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). Device Information(1) PART NUMBER PACKAGE BODY SIZE (NOM) TPS62170-Q1 WSON (8) 2.00 mm × 2.00 mm TPS62171-Q1 WSON (8) 2.00 mm × 2.00 mm TPS62172-Q1 WSON (8) 2.00 mm × 2.00 mm (1) For all available packages, see the orderable addendum at the end of the data sheet. Typical Application Schematic Efficiency vs Output Current space spacespace VIN C1 10uF VIN SW EN VOS TPS62170-Q1 AGND PG PGND FB 2.2µH 100k R1 470k R2 150k 3.3V / 0.5A C2 22uF 1 An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications, intellectual property matters and other important disclaimers. PRODUCTION DATA. TPS62170-Q1, TPS62171-Q1, TPS62172-Q1 SLVSCK7D – DECEMBER 2014 – REVISED FEBRUARY 2017 www.ti.com Table of Contents 1 Features .................................................................. 1 2 Applications ........................................................... 1 3 Description ............................................................. 1 4 Revision History..................................................... 2 5 Device Comparison Table..................................... 3 6 Pin Configuration and Functions ......................... 3 7 Specifications......................................................... 4 7.1 Absolute Maximum Ratings ...................................... 4 7.2 ESD Ratings.............................................................. 4 7.3 Recommended Operating Conditions....................... 4 7.4 Thermal Information .................................................. 4 7.5 Electrical Characteristics........................................... 5 7.6 Typical Characteristics .............................................. 6 8 Detailed Description .............................................. 7 8.1 Overview ................................................................... 7 8.2 Functional Block Diagram ......................................... 7 8.3 Feature Description................................................... 8 8.4 Device Functional Modes.......................................... 8 9 Application and Implementation ........................ 11 9.1 Application Information............................................ 11 9.2 Typical TPS62170-Q1 Application ......................... 11 9.3 System Examples ................................................... 20 10 Power Supply Recommendations ..................... 22 11 Layout................................................................... 23 11.1 Layout Guidelines ................................


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