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

TPS54JB20

ACTIVE

2.7-V to 16-V input, 20-A synchronous buck converter with remote sense and latch-off current limit

Order now
Data sheet

TPS54JB20

ACTIVE
Data sheet Order now

Product details

Rating Catalog Operating temperature range (°C) -40 to 125 Topology Buck Type Converter Iout (max) (A) 20 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) 0.9 Vout (max) (V) 5.5 Iq (typ) (µA) 910 Duty cycle (max) (%) 86
Rating Catalog Operating temperature range (°C) -40 to 125 Topology Buck Type Converter Iout (max) (A) 20 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) 0.9 Vout (max) (V) 5.5 Iq (typ) (µA) 910 Duty cycle (max) (%) 86
VQFN-HR (RWW) 21 12 mm² 4 x 3
  • 4-V to 16-V input range up to 20-A without external bias
  • 2.7-V to 16-V input range up to 20-A with external bias ranging from 3.13-V to 3.6-V
  • Output voltage range: 0.9-V to 5.5-V
  • Integrated 7.7-mΩ and 2.4-mΩ MOSFETs support 20-A continuous output current
  • D-CAP3™ with ultra fast load-step response
  • Supports all ceramic output capacitors
  • Differential remote sense with 0.9-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
  • Differential remote sense for high output accuracy
  • Programmable soft-start time
  • External reference input for tracking
  • Prebiased start-up capability
  • Open-drain power-good output
  • Latch-off for OC, UV, and OV faults
  • 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 20-A without external bias
  • 2.7-V to 16-V input range up to 20-A with external bias ranging from 3.13-V to 3.6-V
  • Output voltage range: 0.9-V to 5.5-V
  • Integrated 7.7-mΩ and 2.4-mΩ MOSFETs support 20-A continuous output current
  • D-CAP3™ with ultra fast load-step response
  • Supports all ceramic output capacitors
  • Differential remote sense with 0.9-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
  • Differential remote sense for high output accuracy
  • Programmable soft-start time
  • External reference input for tracking
  • Prebiased start-up capability
  • Open-drain power-good output
  • Latch-off for OC, UV, and OV faults
  • 4-mm × 3-mm, 21-pin QFN package
  • Pin compatible with 12-A TPS54JA20
  • Fully RoHS compliant without exemption

The TPS54JB20 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 TPS54JB20 device has differential remote sense, high-performance integrated MOSFETs, and an accurate ±1%, 0.9-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 TPS54JB20 device is a lead-free device. It is fully RoHS compliant without exemption.

The TPS54JB20 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 TPS54JB20 device has differential remote sense, high-performance integrated MOSFETs, and an accurate ±1%, 0.9-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 TPS54JB20 device is a lead-free device. It is fully RoHS compliant without exemption.
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
TPS548A28 ACTIVE 2.7-V to 16-V, 15-A synchronous buck converter with remote sense and 3-V LDO Lower current equivalent.
TPS548A29 ACTIVE 2.7-V to 16-V, 15-A synchronous buck converter with remote sense and 4.5-V LDO Lower current equivalent.
TPS54JA20 ACTIVE 2.7-V to 16-V input, 12-A synchronous buck converter with remote sense and latch-off current limit Lower current equivalent part.
Similar functionality to the compared device
NEW TPS54KB20 ACTIVE 4-V to 16-V input, 25-A remote sense synchronous step-down converter Higher current converter in a smaller package.

Technical documentation

star =Top documentation for this product selected by TI
No results found. Please clear your search and try again.
View all 5
Type Title Date
* Data sheet TPS54JB20 2.7-V to 16-V Input, 20-A Synchronous Buck Converter With Remote Sense, 3-V Internal LDO and Latch-off Current Limit datasheet (Rev. B) PDF | HTML 23 Nov 2020
Application note Measuring the Bode Plot of D-CAP™, D-CAP2™, and D-CAP3™ DC/DC Converters (Rev. A) PDF | HTML 21 Apr 2023
Application note Benefits Using a Buck Converter's External Vcc Bias Pin PDF | HTML 25 May 2021
EVM User's guide TPS54JB20EVM-023 20-A, Buck Converter Evaluation Module (Rev. A) PDF | HTML 30 Oct 2020
Certificate TPS54JB20EVM-023 EU Declaration of Conformity (DoC) 17 Jun 2020

Design & development

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

Evaluation board

TPS548B28EVM — 20-A DC-DC buck converter evaluation module with 0.6-Vref and internal 3-V LDO

The TPS548B28 is a D-CAP3™ synchronous buck converter designed for 20-A output current, and the TPS548B28EVM evaluation module (EVM) is designed to demonstrate the small printed-circuit-board areas that may be achieved when designing with the device. The high-side and low-side switching (...)
User guide: PDF
Not available on TI.com
Evaluation board

TPS54JB20EVM — 16-V, 20-A step-down converter with differential remote sense evaluation module

The TPS54JB20EVM is an evaluation module (EVM) designed to demonstrate the small printed circuit board are that may be achieved when designing with the TPS54JB20 device, a D-CAP3 synchronous buck converter designed for up to 20-A output current. The TPS54JB20 device has integrated (...)
User guide: PDF | HTML
Not available on TI.com
Simulation model

TPS54JB20 PSpice Transient Model

SNVMC04.ZIP (302 KB) - PSpice Model
Download
Simulation model

TPS54JB20 SIMPLIS Transient and Average Model

SNVMC03.ZIP (564 KB) - SIMPLIS Model
Download
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
Download
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

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

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