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TPS548A28

ACTIVE

2.7-V to 16-V, 15-A synchronous buck converter with remote sense and 3-V LDO

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Data sheet

TPS548A28

ACTIVE
Data sheet Order now

Product details

Rating Catalog Operating temperature range (°C) -40 to 125 Topology Buck Type Converter Iout (max) (A) 15 Vin (min) (V) 2.7 Vin (max) (V) 16 Switching frequency (min) (kHz) 600 Switching frequency (max) (kHz) 1000 Features Adjustable current limit, Differential Remote Sense, Enable, Forced PWM, Light Load Efficiency, Over Current Protection, Power good, Pre-Bias Start-Up, Soft Start Adjustable, Synchronous Rectification, Tracking, UVLO Fixed Control mode D-CAP3 Vout (min) (V) 0.6 Vout (max) (V) 5.5 Iq (typ) (µA) 680 Duty cycle (max) (%) 86
Rating Catalog Operating temperature range (°C) -40 to 125 Topology Buck Type Converter Iout (max) (A) 15 Vin (min) (V) 2.7 Vin (max) (V) 16 Switching frequency (min) (kHz) 600 Switching frequency (max) (kHz) 1000 Features Adjustable current limit, Differential Remote Sense, Enable, Forced PWM, Light Load Efficiency, Over Current Protection, Power good, Pre-Bias Start-Up, Soft Start Adjustable, Synchronous Rectification, Tracking, UVLO Fixed Control mode D-CAP3 Vout (min) (V) 0.6 Vout (max) (V) 5.5 Iq (typ) (µA) 680 Duty cycle (max) (%) 86
VQFN-HR (RWW) 21 12 mm² 4 x 3
  • 4-V to 16-V input range up to 15-A without external bias
  • 3-V to 16-V input range up to 12-A without external bias
  • 2.7-V to 16-V input range up to 15 A with external bias ranging from 3.13 V to 5.3 V
  • Output voltage range: 0.6 V to 5.5 V
  • Integrated 10.2-mΩ and 3.1-mΩ MOSFETs
  • D-CAP3™ with ultra fast load-step response
  • Supports all ceramic output capacitors
  • Differential remote sense with 0.6-V ±1% VREF for –40°C to +125°C junction temperature
  • Auto-skip Eco-mode™ for high light-load efficiency
  • Programmable current limit with RTRIP
  • Pin-selectable switching frequency: 600 kHz, 800 kHz, 1 MHz
  • Programmable soft-start time
  • External reference input for tracking
  • Prebiased startup capability
  • Open-drain power-good output
  • Hiccup for OC and UV faults, latch-off for OV Fault
  • 4-mm × 3-mm, 21-pin QFN package
  • Pin compatible with 12-A TPS54JA20
  • Fully RoHS compliant without exemption
  • 4-V to 16-V input range up to 15-A without external bias
  • 3-V to 16-V input range up to 12-A without external bias
  • 2.7-V to 16-V input range up to 15 A with external bias ranging from 3.13 V to 5.3 V
  • Output voltage range: 0.6 V to 5.5 V
  • Integrated 10.2-mΩ and 3.1-mΩ MOSFETs
  • D-CAP3™ with ultra fast load-step response
  • Supports all ceramic output capacitors
  • Differential remote sense with 0.6-V ±1% VREF for –40°C to +125°C junction temperature
  • Auto-skip Eco-mode™ for high light-load efficiency
  • Programmable current limit with RTRIP
  • Pin-selectable switching frequency: 600 kHz, 800 kHz, 1 MHz
  • Programmable soft-start time
  • External reference input for tracking
  • Prebiased startup capability
  • Open-drain power-good output
  • Hiccup for OC and UV faults, latch-off for OV Fault
  • 4-mm × 3-mm, 21-pin QFN package
  • Pin compatible with 12-A TPS54JA20
  • Fully RoHS compliant without exemption

The TPS548A28 device is a small high-efficiency synchronous buck converter with an adaptive on-time D-CAP3 control mode. Since external compensation is not required, the device is easy to use and requires few external components. The device is well-suited for space-constrained data center applications.

The TPS548A28 device has differential remote sense, high-performance integrated MOSFETs, and an accurate ±1%, 0.6-V reference over the full operating junction temperature range. The device features fast load-transient response, accurate load regulation and line regulation, skip-mode or FCCM operation, and programmable soft start.

The TPS548A28 device is a lead-free device. It is fully RoHS-compliant without exemption.

The TPS548A28 device is a small high-efficiency synchronous buck converter with an adaptive on-time D-CAP3 control mode. Since external compensation is not required, the device is easy to use and requires few external components. The device is well-suited for space-constrained data center applications.

The TPS548A28 device has differential remote sense, high-performance integrated MOSFETs, and an accurate ±1%, 0.6-V reference over the full operating junction temperature range. The device features fast load-transient response, accurate load regulation and line regulation, skip-mode or FCCM operation, and programmable soft start.

The TPS548A28 device is a lead-free device. It is fully RoHS-compliant without exemption.
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Technical documentation

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Type Title Date
* Data sheet TPS548A28 2.7-V to 16-V Input, 15-A Synchronous Buck Converter With Remote Sense, 3-V Internal LDO and Hiccup Current Limit datasheet (Rev. D) PDF | HTML 07 Jul 2021
Application brief Solving power design challenges in oscilloscope applications PDF | HTML 31 Oct 2023
Application note Point-of-Load Designs in Data Center Apps for Intel Xeon Sapphire Rapids Scalabl (Rev. B) PDF | HTML 29 Aug 2023
Analog Design Journal 2단계 필터를 사용하여 전압 리플 감소 PDF | HTML 03 May 2023
Analog Design Journal 使用第二級濾波器來減少電壓漣波 PDF | HTML 03 May 2023
Application note Measuring the Bode Plot of D-CAP™, D-CAP2™, and D-CAP3™ DC/DC Converters (Rev. A) PDF | HTML 21 Apr 2023
Analog Design Journal Using a second stage filter to reduce voltage ripple PDF | HTML 10 Jan 2023
Application note Point-of-Load Solutions for Network Interface Cards (NIC) PDF | HTML 08 Sep 2021
Application note Benefits Using a Buck Converter's External Vcc Bias Pin PDF | HTML 25 May 2021
EVM User's guide TPS548A28EVM User's Guide 27 Mar 2020
Application note Point-of-Load Solutions for Data Center App Implementing VR13.HC Vccin Spec (Rev. A) PDF | HTML 08 Jan 2020

Design & development

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

Evaluation board

TPS548A28EVM — 15-A DC-DC buck converter evaluation module with 0.6 Vref and internal 3-V LDO

The TPS548A28EVM is a D-CAP3 synchronous buck converter designed for up to 15-A output current, with an evaluation module (EVM) designed to demonstrate the small printed circuit board that may be achieved when designing with the TPS548A28 device. The TPS548A28 has integrated high-side and (...)
User guide: PDF
Not available on TI.com
Simulation model

TPS548A28 PSpice Transient Model (Rev. A)

SNVMBZ7A.ZIP (244 KB) - PSpice Model
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Simulation model

TPS548A28 SIMPLIS Transient and Average Model

SNVMBZ5.ZIP (390 KB) - SIMPLIS Model
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Calculation tool

SLVRBH6 — TPS54J06x TPS54Jx20 TPS548x28-9 Excel Calculator Tool

Supported products & hardware

Supported products & hardware

Products
AC/DC & DC/DC converters (integrated FET)
TPS548A28 — 2.7-V to 16-V, 15-A synchronous buck converter with remote sense and 3-V LDO TPS548A29 — 2.7-V to 16-V, 15-A synchronous buck converter with remote sense and 4.5-V LDO TPS548B27 — 2.7-V to 16-V, 20-A synchronous step-down converter with differential remote sense TPS548B28 — 2.7-V to 16-V input, 20-A synchronous step-down converter with remote sense and hiccup current limit TPS54J060 — 4-V to 16-V input, 6-A synchronous buck converter, 900-mV reference voltage, latch-off current limit TPS54J061 — 4-V to 16-V input, 6-A synchronous buck converter, 600-mV reference voltage and hiccup current limit TPS54JA20 — 2.7-V to 16-V input, 12-A synchronous buck converter with remote sense and latch-off current limit TPS54JB20 — 2.7-V to 16-V input, 20-A synchronous buck converter with remote sense and latch-off current limit
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Package Pins CAD symbols, footprints & 3D models
VQFN-HR (RWW) 21 Ultra Librarian
TI's Standard Terms and Conditions for Evaluation Items apply.

Ordering & quality

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