TPS628522-Q1 TI | Alldatasheet

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Technical content

TPS62852x-Q1 2.7V to 6V, 1A, 2A, 3A, Automotive, Step-Down Converters in a WSON Package

1 Features

  • AEC-Q100 qualified for automotive applications – Device temperature grade 1: –40°C to +125°C TA
  • Wettable flanks
  • Designed for low EMI requirements – Optional pseudo-random spread spectrum reduces peak emissions
  • TJ = –40°C to +150°C
  • Family of 1A, 2A, and 3A (continuous) converters
  • Input voltage range: 2.7V to 6V
  • Quiescent current: 21µA typical
  • Shutdown current: 1.5µA typical
  • Output voltage from 0.6V to 5.5V
  • Output voltage accuracy ±1% (PWM operation)
  • Options of forced PWM or PWM, PFM operation
  • Switching frequency in PWM: 2.25MHz
  • Adjustable soft start-up to 10ms
  • Precise ENABLE input allows: – User-defined undervoltage lockout – Exact sequencing
  • Active output discharge
  • Foldback overcurrent protection – optional
  • Power-good output with window comparator

2 Applications

  • Advanced driver assistance systems (ADAS) camera
  • ADAS sensor fusion and surround view ECU
  • Hybrid and reconfigurable instrument cluster
  • Head unit and telematics control unit
  • External audio amplifier

3 Description

The TPS62852x-Q1 are a family of pin-to-pin, 1A, 2A, and 3A, high efficiency, easy-to-use, synchronous step-down DC/DC converters. These devices are based on a peak current mode control topology and support tight switching frequency variation. These devices are designed for automotive applications such as infotainment and advanced driver assistance systems. Low resistive switches allow up to 3A continuous output current. In the TPS62852x-Q1, the switching frequency is internally fixed at 2.25MHz. The TPS62852x-Q1 automatically selects pulse width modulation (PWM) for higher power demand and pulse frequency mode (PFM) for power saving operation. This selection maintains high efficiency across the whole load range. The device exists also in options with forced PWM in cases where frequency stability requirements dominate. The family provides a 1% output voltage accuracy over the full temperature range in PWM mode, which helps designing power supplies for devices with very tight supply voltage accuracy requirements. The TPS62852x-Q1 is available in an 8-pin, 2.0mm × 1.5mm, WSON package. Device Information PART NUMBER(3) OUTPUT CURRENT PACKAGE(1) PACKAGE SIZE(2) TPS628521-Q1(4) 1A DLS (WSON-HR, 8) 2.00mm × 1.50mmTPS628522-Q1 2A TPS628523-Q1 3A (1) For more information, see Section 8. (2) The package size (length × width) is a nominal value and includes pins, where applicable. (3) See the Device Comparison Table. (4) Preview information (not Production Data). OUT SW FB VIN TPS62852x-Q1 EN GNDPG SS CIN CSS GND GND GND COUT GND VIN VOUTL Simplified Schematic Output Current (A) Efficiency (%) 0 0.5 1 1.5 2 2.5 3 VIN = 2.7V VIN = 3.3V VIN = 4.0V VIN = 5.0V VIN = 6.0V Efficiency vs IOUT, VOUT = 1.1V TPS628522-Q1, TPS628523-Q1 SLUSFX1A – FEBRUARY 2025 – REVISED MAY 2025 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. UNLESS OTHERWISE NOTED, this document contains PRODUCTION DATA.

8 Mechanical, Packaging, and Orderable Information....6 TPS628522-Q1, TPS628523-Q1 SLUSFX1A – FEBRUARY 2025 – REVISED MAY 2025 www.ti.com

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4 Device Comparison Table

TPS628523PAWDLSRQ1(1) 3A FPWM ON OFF 2 × 22uF 470nH Adjustable WDLS(2) TPS628523HAWDLSRQ1(1) 3A FPWM ON OFF 2 × 22uF 200nH Adjustable WDLS(2) TPS628523SADLSRQ1 3A FPWM ON OFF 1 × 22uF 470nH Adjustable DLS TPS628522SADLSRQ1 2A FPWM ON OFF 1 × 22uF 470nH Adjustable DLS TPS628523PADLSRQ1 3A FPWM ON OFF 2 × 22uF 470nH Adjustable DLS TPS628523PDLSRQ1 3A PFM/PWM ON OFF 2 × 22uF 470nH Adjustable DLS TPS628522PADLSRQ1 2A FPWM ON OFF 2 × 22uF 470nH Adjustable DLS TPS628523HADLSRQ1 3A FPWM ON OFF 2 × 22uF 200nH Adjustable DLS TPS628522HADLSRQ1 2A FPWM ON OFF 2 × 22uF 200nH Adjustable DLS (1) Advance Information (not Production Data) (2) WDLS - wettable flanks The TPS628523S and P versions use a 470nH inductor and can be used interchangeably with industry standard devices. The TPS628523H is an enhanced version for 200nH inductors with 2 × 22uF output capacitors. 200nH inductors have lower DC resistance and can have a smaller form factor compared to a 470nH inductor with the same current carrying capability. The TPS628523H also offers best transient behavior and can additionally support higher output capacitance for transient suppression down to very few mV. www.ti.com TPS628522-Q1, TPS628523-Q1 SLUSFX1A – FEBRUARY 2025 – REVISED MAY 2025 Copyright © 2025 Texas Instruments Incorporated Submit Document Feedback 3 Product Folder Links: TPS628522-Q1 TPS628523-Q1

5 Pin Configuration and Functions

Figure 5-1. 8-Pin WSON-HR DLS (Top View) Table 5-1. Pin Functions PIN TYPE(1) DESCRIPTION NAME NO. PG 1 O Open-drain power-good output VIN 2 — Power supply input. Make sure the input capacitor is connected as close as possible between the VIN and GND pins. SW 3 — This pin is the switch pin of the converter and is connected to the internal power MOSFETs. GND 4 — Ground pin EN 5 I This pin is the enable pin of the device. Connect to logic low to disable the device. Pull high to enable the device. Do not leave this pin unconnected. SS 6 I Soft-Start pin. An external capacitor connected from this pin to GND defines the rise time for the internal reference voltage. OUT 7 I Output voltage sense pin. Connect the load to this pin FB 8 I Voltage feedback input. Connect the resistive output voltage divider to this pin. (1) I = input, O = output TPS628522-Q1, TPS628523-Q1 SLUSFX1A – FEBRUARY 2025 – REVISED MAY 2025 www.ti.com

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6 Device and Documentation Support

6.1 Device Support

6.1.1 Third-Party Products Disclaimer

TI'S PUBLICATION OF INFORMATION REGARDING THIRD-PARTY PRODUCTS OR SERVICES DOES NOT CONSTITUTE AN ENDORSEMENT REGARDING THE SUITABILITY OF SUCH PRODUCTS OR SERVICES OR A WARRANTY, REPRESENTATION OR ENDORSEMENT OF SUCH PRODUCTS OR SERVICES, EITHER ALONE OR IN COMBINATION WITH ANY TI PRODUCT OR SERVICE.

6.2 Receiving Notification of Documentation Updates

To receive notification of documentation updates, navigate to the device product folder on ti.com. Click on Notifications to register and receive a weekly digest of any product information that has changed. For change details, review the revision history included in any revised document.

6.3 Support Resources

TI E2E™ support forums are an engineer's go-to source for fast, verified answers and design help — straight from the experts. Search existing answers or ask your own question to get the quick design help you need. Linked content is provided "AS IS" by the respective contributors. They do not constitute TI specifications and do not necessarily reflect TI's views; see TI's Terms of Use.

6.4 Trademarks

TI E2E™ is a trademark of Texas Instruments. All trademarks are the property of their respective owners.

6.5 Electrostatic Discharge Caution

This integrated circuit can be damaged by ESD. Texas Instruments recommends that all integrated circuits be handled with appropriate precautions. Failure to observe proper handling and installation procedures can cause damage. ESD damage can range from subtle performance degradation to complete device failure. Precision integrated circuits may be more susceptible to damage because very small parametric changes could cause the device not to meet its published specifications.

6.6 Glossary

TI Glossary This glossary lists and explains terms, acronyms, and definitions.

7 Revision History

Changes from Revision * (February 2025) to Revision A (May 2025) Page www.ti.com TPS628522-Q1, TPS628523-Q1 SLUSFX1A – FEBRUARY 2025 – REVISED MAY 2025 Copyright © 2025 Texas Instruments Incorporated Submit Document Feedback 5 Product Folder Links: TPS628522-Q1 TPS628523-Q1

8 Mechanical, Packaging, and Orderable Information

The following pages include mechanical, packaging, and orderable information. This information is the most current data available for the designated devices. This data is subject to change without notice and revision of this document. For browser-based versions of this data sheet, refer to the left-hand navigation. TPS628522-Q1, TPS628523-Q1 SLUSFX1A – FEBRUARY 2025 – REVISED MAY 2025 www.ti.com

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www.ti.com PACKAGE OUTLINE C 1.61.4 2.11.9 0.80.70.050.00 (0.1) TYP WSON-HR - 0.8 mm max heightDLS0008A-C01PLASTIC SMALL OUTLINE - NO LEAD 4231602/A 02/2025 0.08C PIN 1 INDEX AREA SEATING PLANE PIN 1 ID SYMM SYMM1 4 5 80.1CAB0.05C SCALE 5.000 AB www.ti.com TPS628522-Q1, TPS628523-Q1 SLUSFX1A – FEBRUARY 2025 – REVISED MAY 2025 Copyright © 2025 Texas Instruments Incorporated Submit Document Feedback 7 Product Folder Links: TPS628522-Q1 TPS628523-Q1

www.ti.com EXAMPLE BOARD LAYOUT 6X (0.5) (R0.05) TYP 0.05 MAXALL AROUND0.05 MINALL AROUND 7X (0.8)8X (0.25) (1.3) (0.9) WSON-HR - 0.8 mm max heightDLS0008A-C01PLASTIC SMALL OUTLINE - NO LEAD 4231602/A 02/2025NOTES: (continued) 3. For more information, see Texas Instruments literature number SLUA271 (www.ti.com/lit/slua271). SYMM SYMM LAND PATTERN EXAMPLEEXPOSED METAL SHOWNSCALE: 30X SEE SOLDER MASKDETAIL1 4 5 8(45X 0.15) METAL EDGESOLDER MASKOPENINGEXPOSEDMETAL METAL UNDERSOLDER MASKSOLDER MASKOPENINGEXPOSEDMETALNON SOLDER MASKDEFINED(PREFERRED)SOLDER MASK DEFINEDSOLDER MASK DETAILS TPS628522-Q1, TPS628523-Q1 SLUSFX1A – FEBRUARY 2025 – REVISED MAY 2025 www.ti.com

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www.ti.com EXAMPLE STENCIL DESIGN (1.3) (R0.05) TYP (0.9) WSON-HR - 0.8 mm max heightDLS0008A-C01PLASTIC SMALL OUTLINE - NO LEAD 4231602/A 02/2025NOTES: (continued) 4. Laser cutting apertures with trapezoidal walls and rounded corners may offer better paste release. IPC-7525 may have alternate design recommendations. SOLDER PASTE EXAMPLEBASED ON 0.1 mm THICK STENCILSCALE: 30X SYMM SYMM1 4 5 8(45X 0.15) www.ti.com TPS628522-Q1, TPS628523-Q1 SLUSFX1A – FEBRUARY 2025 – REVISED MAY 2025 Copyright © 2025 Texas Instruments Incorporated Submit Document Feedback 9 Product Folder Links: TPS628522-Q1 TPS628523-Q1

www.ti.com 7-Nov-2025 PACKAGING INFORMATION Orderable part number Status (1) Material type (2) Package | Pins Package qty | Carrier RoHS (3) Lead finish/ Ball material (4) MSL rating/ Peak reflow (5) Op temp (°C) Part marking (6) TPS628522HADLSRQ1 Active Production WSON-HR (DLS) | 8 3000 | LARGE T&R Yes SN Level-1-260C-UNLIM -40 to 125 1XD TPS628522SADLSRQ1 Active Production WSON-HR (DLS) | 8 3000 | LARGE T&R Yes SN Level-1-260C-UNLIM -40 to 125 1XC TPS628523HADLSRQ1 Active Production WSON-HR (DLS) | 8 3000 | LARGE T&R Yes SN Level-1-260C-UNLIM -40 to 125 1XP TPS628523PADLSRQ1 Active Production WSON-HR (DLS) | 8 3000 | LARGE T&R Yes SN Level-2-260C-1 YEAR -40 to 125 1W1 TPS628523PDLSRQ1 Active Production WSON-HR (DLS) | 8 3000 | LARGE T&R Yes SN Level-1-260C-UNLIM -40 to 125 1WF TPS628523SADLSRQ1 Active Production WSON-HR (DLS) | 8 3000 | LARGE T&R Yes SN Level-1-260C-UNLIM -40 to 125 1XB XPS628523HAWDLSRQ1 Active Preproduction WSON-HR (DLS) | 8 3000 | LARGE T&R - Call TI Call TI -40 to 125 XPS628523HAWDLSRQ1.A Active Preproduction WSON-HR (DLS) | 8 3000 | LARGE T&R - Call TI Call TI -40 to 125 XPS628523PAWDLSRQ1 Active Preproduction WSON-HR (DLS) | 8 3000 | LARGE T&R - Call TI Call TI -40 to 125 XPS628523PAWDLSRQ1.A Active Preproduction WSON-HR (DLS) | 8 3000 | LARGE T&R - Call TI Call TI -40 to 125 (1) Status: For more details on status, see our product life cycle. (2) Material type: When designated, preproduction parts are prototypes/experimental devices, and are not yet approved or released for full production. Testing and final process, including without limitation quality assurance, reliability performance testing, and/or process qualification, may not yet be complete, and this item is subject to further changes or possible discontinuation. If available for ordering, purchases will be subject to an additional waiver at checkout, and are intended for early internal evaluation purposes only. These items are sold without warranties of any kind. (3) RoHS values: Yes, No, RoHS Exempt. See the TI RoHS Statement for additional information and value definition. (4) Lead finish/Ball material: Parts may have multiple material finish options. Finish options are separated by a vertical ruled line. Lead finish/Ball material values may wrap to two lines if the finish value exceeds the maximum column width. (5) MSL rating/Peak reflow: The moisture sensitivity level ratings and peak solder (reflow) temperatures. In the event that a part has multiple moisture sensitivity ratings, only the lowest level per JEDEC standards is shown. Refer to the shipping label for the actual reflow temperature that will be used to mount the part to the printed circuit board. (6) Part marking: There may be an additional marking, which relates to the logo, the lot trace code information, or the environmental category of the part. Multiple part markings will be inside parentheses. Only one part marking contained in parentheses and separated by a "~" will appear on a part. If a line is indented then it is a continuation of the previous line and the two combined represent the entire part marking for that device. Important Information and Disclaimer:The information provided on this page represents TI's knowledge and belief as of the date that it is provided. TI bases its knowledge and belief on information provided by third parties, and makes no representation or warranty as to the accuracy of such information. Efforts are underway to better integrate information from third parties. TI has taken and continues to take reasonable steps to provide representative Addendum-Page 1

www.ti.com 7-Nov-2025 and accurate information but may not have conducted destructive testing or chemical analysis on incoming materials and chemicals. TI and TI suppliers consider certain information to be proprietary, and thus CAS numbers and other limited information may not be available for release. In no event shall TI's liability arising out of such information exceed the total purchase price of the TI part(s) at issue in this document sold by TI to Customer on an annual basis. Addendum-Page 2

PACKAGE MATERIALS INFORMATION www.ti.com 27-Sep-2025 TAPE AND REEL INFORMATION Reel Width (W1) REEL DIMENSIONS A0B0K0WDimension designed to accommodate the component lengthDimension designed to accommodate the component thicknessOverall width of the carrier tapePitch between successive cavity centersDimension designed to accommodate the component width TAPE DIMENSIONSK0 P1B0WA0Cavity QUADRANT ASSIGNMENTS FOR PIN 1 ORIENTATION IN TAPE Pocket QuadrantsSprocket HolesQ1Q1Q2Q2Q3Q3Q4Q4User Direction of Feed P1ReelDiameter *All dimensions are nominal Device Package Type Package Drawing Pins SPQ Reel Diameter (mm) Reel Width W1 (mm) (mm) (mm) (mm) (mm) W (mm) Pin1 Quadrant TPS628522HADLSRQ1 WSON- HR TPS628522SADLSRQ1 WSON- HR TPS628523HADLSRQ1 WSON- HR TPS628523PADLSRQ1 WSON- HR TPS628523PDLSRQ1 WSON- HR TPS628523SADLSRQ1 WSON- HR Pack Materials-Page 1

PACKAGE MATERIALS INFORMATION www.ti.com 27-Sep-2025 TAPE AND REEL BOX DIMENSIONS Width (mm) W LH *All dimensions are nominal Device Package Type Package Drawing Pins SPQ Length (mm) Width (mm) Height (mm) TPS628522HADLSRQ1 WSON-HR DLS 8 3000 210.0 185.0 35.0 TPS628522SADLSRQ1 WSON-HR DLS 8 3000 210.0 185.0 35.0 TPS628523HADLSRQ1 WSON-HR DLS 8 3000 210.0 185.0 35.0 TPS628523PADLSRQ1 WSON-HR DLS 8 3000 210.0 185.0 35.0 TPS628523PDLSRQ1 WSON-HR DLS 8 3000 210.0 185.0 35.0 TPS628523SADLSRQ1 WSON-HR DLS 8 3000 210.0 185.0 35.0 Pack Materials-Page 2

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