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TPS548D22

ACTIVE

1.5-V to 16-V, 40-A synchronous SWIFT™ buck converter with differential remote sense

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Data sheet

TPS548D22

ACTIVE
Data sheet Order now

Product details

Vin (Min) (V) 1.5 Vin (Max) (V) 16 Vout (Min) (V) 0.6 Vout (Max) (V) 5.5 Iout (Max) (A) 40 Iq (Typ) (uA) 2000 Switching frequency (Min) (kHz) 425 Switching frequency (Max) (kHz) 1050 Features Adjustable Current Limit, Enable, Light Load Efficiency, Power Good, Pre-Bias Start-Up, Synchronous Rectification, UVLO Adjustable, Differential Remote Sense, Forced PWM, Over Current Protection, Soft Start Adjustable Rating Catalog Regulated outputs (#) 1 Control mode D-CAP3 Duty cycle (Max) (%) 80
Vin (Min) (V) 1.5 Vin (Max) (V) 16 Vout (Min) (V) 0.6 Vout (Max) (V) 5.5 Iout (Max) (A) 40 Iq (Typ) (uA) 2000 Switching frequency (Min) (kHz) 425 Switching frequency (Max) (kHz) 1050 Features Adjustable Current Limit, Enable, Light Load Efficiency, Power Good, Pre-Bias Start-Up, Synchronous Rectification, UVLO Adjustable, Differential Remote Sense, Forced PWM, Over Current Protection, Soft Start Adjustable Rating Catalog Regulated outputs (#) 1 Control mode D-CAP3 Duty cycle (Max) (%) 80
LQFN-CLIP (RVF) 40 35 mm² 7 x 5
  • Conversion Input Voltage Range (PVIN): 1.5 V to 16 V
  • Input Bias Voltage (VDD) Range: 4.5 V to 22 V
  • Output Voltage Range: 0.6 V to 5.5 V
  • Integrated, 2.9-mΩ and 1.2-mΩ Power MOSFETs With 40-A Continuous Output Current
  • Voltage Reference 0.6 V to 1.2 V in 50-mV Steps Using VSEL Pin
  • ±0.5%, 0.9-VREF Tolerance Range: –40°C to +125°C Junction Temperature
  • True Differential Remote Sense Amplifier
  • D-CAP3™ Control Loop to Support Large Bulk Capacitors and/or Small MLCCs Without External Compensation
  • Adaptive On-Time Control with 4 Selectable Frequency Settings: 425 kHz, 650 kHz, 875 kHz, and 1.05 MHz
  • Temperature Compensated and Programmable Current Limit with RILIM and OC Clamp
  • Choice of Hiccup or Latch-Off OVP or UVP
  • VDD UVLO External Adjustment by Precision EN Hysteresis
  • Prebias Start-up Support
  • Eco-mode™ and FCCM Selectable
  • Full Suite of Fault Protection and PGOOD
  • Conversion Input Voltage Range (PVIN): 1.5 V to 16 V
  • Input Bias Voltage (VDD) Range: 4.5 V to 22 V
  • Output Voltage Range: 0.6 V to 5.5 V
  • Integrated, 2.9-mΩ and 1.2-mΩ Power MOSFETs With 40-A Continuous Output Current
  • Voltage Reference 0.6 V to 1.2 V in 50-mV Steps Using VSEL Pin
  • ±0.5%, 0.9-VREF Tolerance Range: –40°C to +125°C Junction Temperature
  • True Differential Remote Sense Amplifier
  • D-CAP3™ Control Loop to Support Large Bulk Capacitors and/or Small MLCCs Without External Compensation
  • Adaptive On-Time Control with 4 Selectable Frequency Settings: 425 kHz, 650 kHz, 875 kHz, and 1.05 MHz
  • Temperature Compensated and Programmable Current Limit with RILIM and OC Clamp
  • Choice of Hiccup or Latch-Off OVP or UVP
  • VDD UVLO External Adjustment by Precision EN Hysteresis
  • Prebias Start-up Support
  • Eco-mode™ and FCCM Selectable
  • Full Suite of Fault Protection and PGOOD

The TPS548D22 device is a compact single buck converter with adaptive on-time, D-CAP3 mode control. It is designed for high accuracy, high efficiency, fast transient response, ease-of-use, low external component count and space-conscious power systems.

This device features full differential sense, TI integrated FETs with a high-side on-resistance of 2.9 mΩ and a low-side on-resistance of 1.2 mΩ. The device also features accurate 0.5%, 0.9-V reference with an ambient temperature range between –40°C and +125°C. Competitive features include: very low external component count, accurate load regulation and line regulation, auto-skip or FCCM mode operation, and internal soft-start control.

The TPS548D22 device is available in 7-mm × 5-mm, 40-pin, LQFN-CLIP (RVF) package (RoHs exempt).

The TPS548D22 device is a compact single buck converter with adaptive on-time, D-CAP3 mode control. It is designed for high accuracy, high efficiency, fast transient response, ease-of-use, low external component count and space-conscious power systems.

This device features full differential sense, TI integrated FETs with a high-side on-resistance of 2.9 mΩ and a low-side on-resistance of 1.2 mΩ. The device also features accurate 0.5%, 0.9-V reference with an ambient temperature range between –40°C and +125°C. Competitive features include: very low external component count, accurate load regulation and line regulation, auto-skip or FCCM mode operation, and internal soft-start control.

The TPS548D22 device is available in 7-mm × 5-mm, 40-pin, LQFN-CLIP (RVF) package (RoHs exempt).
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Technical documentation

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Type Title Date
* Data sheet TPS548D22 1.5-V to 16-V VIN, 4.5-V to 22-V VDD, 40-A SWIFT™ Synchronous Step-Down Converter with Full Differential Sense datasheet (Rev. D) PDF | HTML 07 Jul 2017
EVM User's guide TPS548D22 SWIFT™ Step-Down Converter Evaluation Module User's Guide (Rev. B) PDF | HTML 03 Aug 2021
Application note Measuring the Bode Plot for D-CAPx DC/DC Converters PDF | HTML 25 May 2021
Selection guide Buck Converter Quick Reference Guide (Rev. B) 08 Apr 2021
Application note Common-Anode Power Supply Solution for Common-Cathode LED Display PDF | HTML 31 Jul 2020
Technical article Minimize the impact of the MLCC shortage on your power application 29 Mar 2019
Selection guide Control-Mode Quick Reference Guide (Rev. A) 14 Sep 2017
Application note Calculating Output Capacitance to Meet Transient and Ripple Requirements 02 May 2017
Technical article Design advantage of D-CAP control topology 13 Apr 2017
Application note Unified Ground Connection Recommendation on TPS53K- Integrated FET-Converter Dev 25 Jan 2017
Technical article Downtown or the suburbs? Considering converters or controllers for high-current voltage regulation 31 May 2016
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

Design & development

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

Evaluation board

TPS548D22EVM-784 — TPS548D22 DCAP3 High Performance, 40-A Single Synchronous Step-Down Converter Evaluation Module

The TPS548D22EVM-784 evaluation module provides a 1.0-V output at up to 40 A from a nominal 12-V input bus. The design acheives 89% peak efficiency.

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

TPS548D22 PSpice Transient Model

SLUM534.ZIP (183 KB) - PSpice Model
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Simulation model

TPS548D22 SIMPLIS Transient Model

SLUM745.ZIP (528 KB) - SIMPLIS Model
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Simulation tool

PSPICE-FOR-TI — PSpice® for TI design and simulation tool

PSpice® for TI is a design and simulation environment that helps evaluate functionality of analog circuits. This full-featured, design and simulation suite uses an analog analysis engine from Cadence®. Available at no cost, PSpice for TI includes one of the largest model libraries in the (...)
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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
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LQFN-CLIP (RVF) 40 View options

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