Home Power management AC/DC & DC/DC converters (integrated FET)
Home
Power management
AC/DC & DC/DC converters (integrated FET)

TPS53515

ACTIVE

1.5-V to 18-V, 12-A synchronous SWIFT™ buck converter

Order now
Data sheet

A newer version of this product is available

open-in-new Compare alternates
Same functionality with different pin-out to the compared device
NEW TPS548A23 ACTIVE 4V to 16V, 12A synchronous step-down converter Higher efficiency in a smaller package
Similar functionality to the compared device
TPS548A28 ACTIVE 2.7-V to 16-V, 15-A synchronous buck converter with remote sense and 3-V LDO Upgraded higher current part with wider operating temperature range and a higher switching frequency in a smaller package.

TPS53515

ACTIVE
Data sheet Order now

Product details

Rating Catalog Topology Buck Iout (max) (A) 12 Vin (max) (V) 18 Vin (min) (V) 1.5 Vout (max) (V) 5.5 Vout (min) (V) 0.6 Features Adjustable current limit, Enable, Light-load efficiency, Overcurrent protection, Power good, Prebias startup, Soft-start adjustable, Synchronous rectification, UVLO Fixed Control mode D-CAP3 Switching frequency (min) (kHz) 250 Switching frequency (max) (kHz) 1000 Operating temperature range (°C) -40 to 85 Iq (typ) (µA) 1350 Duty cycle (max) (%) 80 Type Converter
Rating Catalog Topology Buck Iout (max) (A) 12 Vin (max) (V) 18 Vin (min) (V) 1.5 Vout (max) (V) 5.5 Vout (min) (V) 0.6 Features Adjustable current limit, Enable, Light-load efficiency, Overcurrent protection, Power good, Prebias startup, Soft-start adjustable, Synchronous rectification, UVLO Fixed Control mode D-CAP3 Switching frequency (min) (kHz) 250 Switching frequency (max) (kHz) 1000 Operating temperature range (°C) -40 to 85 Iq (typ) (µA) 1350 Duty cycle (max) (%) 80 Type Converter
VQFN-CLIP (RVE) 28 15.75 mm² 4.5 x 3.5
  • Integrated 13.8mΩ and 5.9mΩ MOSFETs with 12A continuous output current
  • Supports all ceramic output capacitors
  • Reference voltage 600mV ±0.5% tolerance
  • Output voltage range: 0.6V to 5.5V
  • D-CAP3™ control mode with fast load-step response
  • Auto-skipping Eco-mode™ for high light-load efficiency
  • FCCM for tight output ripple and voltage requirements
  • Eight selectable frequency settings from 250kHz to 1MHz
  • Precharged start-up capability
  • Built-in output discharge circuit
  • Open-drain power-good output
  • 3.5mm × 4.5mm, 28-pin, VQFN-CLIP package
  • Integrated 13.8mΩ and 5.9mΩ MOSFETs with 12A continuous output current
  • Supports all ceramic output capacitors
  • Reference voltage 600mV ±0.5% tolerance
  • Output voltage range: 0.6V to 5.5V
  • D-CAP3™ control mode with fast load-step response
  • Auto-skipping Eco-mode™ for high light-load efficiency
  • FCCM for tight output ripple and voltage requirements
  • Eight selectable frequency settings from 250kHz to 1MHz
  • Precharged start-up capability
  • Built-in output discharge circuit
  • Open-drain power-good output
  • 3.5mm × 4.5mm, 28-pin, VQFN-CLIP package

The TPS53515 device is a small-sized, synchronous buck converter with an adaptive on-time D-CAP3 control mode. The device offers ease-of-use and low external-component count for space-conscious power systems.

This device features high-performance integrated MOSFETs, accurate 0.5% 0.6V reference, and an integrated boost switch. Competitive features include very low external-component count, fast load-transient response, auto-skip mode operation, internal soft-start control, and no requirement for compensation.

A forced continuous conduction mode helps meet tight voltage regulation accuracy requirements for performance DSPs and FPGAs. The TPS53515 device is available in a 28-pin VQFN-CLIP package and is specified from –40°C to 85°C ambient temperature.

The TPS53515 device is a small-sized, synchronous buck converter with an adaptive on-time D-CAP3 control mode. The device offers ease-of-use and low external-component count for space-conscious power systems.

This device features high-performance integrated MOSFETs, accurate 0.5% 0.6V reference, and an integrated boost switch. Competitive features include very low external-component count, fast load-transient response, auto-skip mode operation, internal soft-start control, and no requirement for compensation.

A forced continuous conduction mode helps meet tight voltage regulation accuracy requirements for performance DSPs and FPGAs. The TPS53515 device is available in a 28-pin VQFN-CLIP package and is specified from –40°C to 85°C ambient temperature.
filter Find other AC/DC & DC/DC converters (integrated FET)
Download View video with transcript Video

Similar products you might be interested in

open-in-new Compare alternates
Pin-for-pin with same functionality to the compared device
TPS53513 ACTIVE 1.5-V to 18-V, 8-A synchronous SWIFT™ buck converter Lower current equivalent part.
TPS548A20 ACTIVE 1.5-V to 20-V, 15-A synchronous SWIFT™ buck converter Higher current part that offers a wider VIN and temperature range with frequency synchronization.

Technical documentation

star =Top documentation for this product selected by TI
No results found. Please clear your search and try again.
View all 15
Type Title Date
* Data sheet TPS53515 1.5V to 18V (4.5V to 25V Bias) Input, 12A Single Synchronous Step-Down SWIFT™ Converter datasheet (Rev. C) PDF | HTML 05 Feb 2026
User guide TPS53515 Step-Down Converter Evaluation Module User's Guide (Rev. C) PDF | HTML 10 Nov 2021
Application note DC/DC Converter Solutions for Hardware Accelerators in Data Center Applications (Rev. A) PDF | HTML 04 May 2021
Selection guide Buck Converter Quick Reference Guide (Rev. B) 08 Apr 2021
Application note Point-of-Load Solutions for Data Center App Implementing VR13.HC Vccin Spec (Rev. A) PDF | HTML 08 Jan 2020
Selection guide SWIFT DC/DC Converters Selector Guide (Rev. G) 06 Feb 2019
Application note Unified Ground Connection Recommendation on TPS53K- Integrated FET-Converter Dev 25 Jan 2017
Analog Design Journal How to select input capacitors for a buck converter 26 Apr 2016
Application note Accuracy-Enhanced Ramp-Generation Design for D-CAP3 Modulation (Rev. A) 25 Apr 2016
Technical article Don’t say goodbye to your power supply PDF | HTML 07 Mar 2016
Application note SMT Guidelines for Stacked Inductor (Inductor On Top) on Voltage Regulator IC 22 Feb 2016
White paper Choosing the Right Variable Frequency Buck Regulator Control Strategy 02 Oct 2015
White paper Choosing the Right Variable Frequency Buck Regulator Control Strategy (PPT) 02 Oct 2015
Application note Not All Jitter Is Created Equal (Rev. A) 04 Jul 2015
Technical article D-CAP3 – A sequel better than the original PDF | HTML 07 May 2015

Design & development

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

Evaluation board

TPS53515EVM-587 — TPS53515EVM-587 1.5V to 22V Input Synchronous Step-Down Converter Evaluation Module

The TPS53515EVM-587 is designed to help the user easily evaluate and test the operation and functionality of the TPS53515 buck converter. The EVM converts a 1.5-V to 18-V input voltage to a regulated 1.2-V output voltage that delivers up to 12 A in a 4.5-mm x 3.5-mm QFN package. This board includes (...)

User guide: PDF | HTML
Not available on TI.com
Simulation model

TPS53515 PSpice Transient Model

SLUM399.ZIP (531 KB) - PSpice Model
Download
Calculation tool

SLURB03 — TPS53513 TPS53515 TPS53915 Excel Calculator and Layout Checklist

Supported products & hardware

Supported products & hardware

Products
AC/DC & DC/DC converters (integrated FET)
  • TPS53513 — 1.5-V to 18-V, 8-A synchronous SWIFT™ buck converter
  • TPS53515 — 1.5-V to 18-V, 12-A synchronous SWIFT™ buck converter
  • TPS53915 — 1.5-V to 18-V, 12-A synchronous SWIFT™ buck converter with PMBus
Download
Reference designs

PMP11399 — PMBus Power System for Enterprise Ethernet Switches Reference Design

PMP11399 is a complete PMBus power system for 3 ASIC/FPGA cores, DDR3 core memory, VTT termination, and auxiliary voltages commonly found on high-performance Ethernet Switches. The hardware is accompanied by a GUI that allows the user to perform real-time configuration and monitoring of the power (...)
Test report: PDF
Schematic: PDF
Reference designs

PMP11438 — Three Different Buck Converter Circuits to Convert 12V to 1.2V at >6A Load Current Reference Design

PMP11438 is a vehicle used to compare three different power solutions for converting a 12V bus to 1.2V at 6-10A. The 1.2V output voltage is applicable to DDR4 memory applications. Each solution offers an advantage in either full load efficiency, light load efficiency, density, height, transient (...)
Test report: PDF
Schematic: PDF
Reference designs

TIDA-00595 — High Power Density 12Vin, 11.8W Buck Converter with Inductor On Top of the IC

The TPS53515 Inductor-On-Top Step-Down Buck Converter reference design enables reduction of X-Y area while enabling >87% efficiency with 2.6W of power loss @12A load and 12mV of output voltage ripple with only 10x22uF ceramic output caps. This power reference design supports a 12V input and a (...)
Test report: PDF
Schematic: PDF
Reference designs

PMP10896 — Complete PMBus Power System for Enterprise Ethernet Switches Reference Design

Complete PMBus power system for 3 ASIC/FPGA cores, DDR3 core memory, and auxiliary voltages found on high-performance Ethernet Switches.
Test report: PDF
Schematic: PDF
Package Pins CAD symbols, footprints & 3D models
VQFN-CLIP (RVE) 28 Ultra Librarian
TI's Standard Terms and Conditions for Evaluation Items apply.

Ordering & quality

Information included:
  • RoHS
  • REACH
  • Device marking
  • Lead finish/Ball material
  • MSL rating/Peak reflow
  • MTBF/FIT estimates
  • Material content
  • Qualification summary
  • Ongoing reliability monitoring
Information included:
  • Fab location
  • Assembly location

Recommended products may have parameters, evaluation modules or reference designs related to this TI product.

Support & training

TI E2E™ forums with technical support from TI engineers

View all forum topics

Content is provided "as is" by TI and community contributors and does not constitute TI specifications. See terms of use.

If you have questions about quality, packaging or ordering TI products, see TI support. ​​​​​​​​​​​​​​

Videos