TPS53915

Name: TPS53915
Brand: TI
SKU: TPS53915
Price: 2.32 USD

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

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Data sheet

document-pdfAcrobat 1.5 to 18 V (4.5 to 25 V bias) Input, 12-A Single Synchronous Step-Down SWIFT™ datasheet (Rev. B)

TPS53915

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Data sheet

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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

Adaptive/Dynamic Voltage Scaling, Adjustable current limit, Adjustable soft start, Enable, Light-load efficiency, Overcurrent protection, PMBus, Power good, Prebias startup, Synchronous rectification, UVLO adjustable, Voltage Margining

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

Adaptive/Dynamic Voltage Scaling, Adjustable current limit, Adjustable soft start, Enable, Light-load efficiency, Overcurrent protection, PMBus, Power good, Prebias startup, Synchronous rectification, UVLO adjustable, Voltage Margining

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 13.8- and 5.9-mΩ MOSFETs Support
12-A Continuous Output Current
Adjustments Available Through PMBus™
- Voltage Margin and Adjustment
- Soft-Start Time
- Power-On Delay
- VDD UVLO Level
- Fault Reporting
- Switching Frequency
- Supports All Ceramic Output Capacitors
- Reference Voltage 600 mV ±0.5% Tolerance
- Output Voltage Range: 0.6 V to 5.5 V
- 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
  200 kHz to 1 MHz
- 3.5 mm × 4.5 mm, 28-Pin, QFN Package

Integrated 13.8- and 5.9-mΩ MOSFETs Support
12-A Continuous Output Current
Adjustments Available Through PMBus™
- Voltage Margin and Adjustment
- Soft-Start Time
- Power-On Delay
- VDD UVLO Level
- Fault Reporting
- Switching Frequency
- Supports All Ceramic Output Capacitors
- Reference Voltage 600 mV ±0.5% Tolerance
- Output Voltage Range: 0.6 V to 5.5 V
- 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
  200 kHz to 1 MHz
- 3.5 mm × 4.5 mm, 28-Pin, QFN Package

The TPS53915 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% 0.6-V 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. The device also features programmability and fault report via PMBus™ to simplify the power supply design.

A forced continuous conduction mode helps meet tight voltage regulation accuracy requirements for performance DSPs and FPGAs. The TPS53915 is available in a 28-pin QFN package and is specified from –40°C to 85°C ambient temperature.

The TPS53915 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% 0.6-V 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. The device also features programmability and fault report via PMBus™ to simplify the power supply design.

A forced continuous conduction mode helps meet tight voltage regulation accuracy requirements for performance DSPs and FPGAs. The TPS53915 is available in a 28-pin QFN package and is specified from –40°C to 85°C ambient temperature.

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Technical documentation

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	Type	Title		Date
*	Data sheet	1.5 to 18 V (4.5 to 25 V bias) Input, 12-A Single Synchronous Step-Down SWIFT™ datasheet (Rev. B)		08 Dec 2014
	User guide	TPS53915 Step-Down Converter Evaluation Module User's Guide (Rev. C)	PDF \| HTML	08 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
	Application note	Accuracy-Enhanced Ramp-Generation Design for D-CAP3 Modulation (Rev. A)		25 Apr 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
	Technical article	Select the correct PMBus POL solution for your application	PDF \| HTML	03 Aug 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
	Application note	D-CAP(TM) Mode With All-Ceramic Output Capacitor Application		03 Feb 2011

Design & development

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

Evaluation board

TPS53915EVM-587 — TPS53915EVM-587 Single Synchronous Step-Down Converter Evaluation Module

The TPS53915EVM-587 is designed to help the user easily evaluate and test the operation and functionality of the TPS53915 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 4.5x3.5mm QFN package. This board includes (...)

User guide: PDF | HTML

Not available on TI.com

Application software & framework

FUSION_DIGITAL_POWER_DESIGNER — Digital Power Software

Fusion Digital Power™ graphical user interface (GUI) software is used to configure and monitor select Texas Instruments digital power controllers and sequencer/health monitors. The application uses the PMBus protocol to communicate with the device over serial bus by way of a TI USB adapter.

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Simulation model