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TPS54JA20

ACTIVE

2.7-V to 16-V input, 12-A synchronous buck converter with remote sense and latch-off current limit

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Data sheet
2.7-V to 16-V input, 12-A synchronous buck converter with remote sense and latch-off current limit

TPS54JA20

ACTIVE
Data sheet Order now

Product details

Vin (Min) (V) 2.7 Vin (Max) (V) 16 Vout (Min) (V) 0.6 Vout (Max) (V) 5.5 Iout (Max) (A) 12 Iq (Typ) (uA) 680 Switching frequency (Min) (kHz) 600 Switching frequency (Max) (kHz) 1000 Features Differential Remote Sense, Enable, Over Current Protection, Power Good, Soft Start Adjustable, Synchronous Rectification, UVLO Fixed Operating temperature range (C) -40 to 125 Rating Catalog Regulated outputs (#) 1
Vin (Min) (V) 2.7 Vin (Max) (V) 16 Vout (Min) (V) 0.6 Vout (Max) (V) 5.5 Iout (Max) (A) 12 Iq (Typ) (uA) 680 Switching frequency (Min) (kHz) 600 Switching frequency (Max) (kHz) 1000 Features Differential Remote Sense, Enable, Over Current Protection, Power Good, Soft Start Adjustable, Synchronous Rectification, UVLO Fixed Operating temperature range (C) -40 to 125 Rating Catalog Regulated outputs (#) 1
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VQFN-HR (RWW) 21 12 mm² 4 x 3 VQFN-HR (RWW) 21 —
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  • 4-V to 16-V input range up to 12-A without external bias
  • 2.7-V to 16-V input range up to 12 A with external bias ranging from 3.13 V to 5.3 V
  • Output voltage range: 0.9 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 0.9-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
  • Programmable soft-start time
  • External reference input for tracking
  • Prebiased startup 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 15-A TPS548A28 / TPS548A29
  • Fully RoHS compliant without exemption
  • 4-V to 16-V input range up to 12-A without external bias
  • 2.7-V to 16-V input range up to 12 A with external bias ranging from 3.13 V to 5.3 V
  • Output voltage range: 0.9 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 0.9-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
  • Programmable soft-start time
  • External reference input for tracking
  • Prebiased startup 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 15-A TPS548A28 / TPS548A29
  • Fully RoHS compliant without exemption
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The TPS54JA20 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 TPS54JA20 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 TPS54JA20 device is a lead-free device. It is fully RoHS compliant without exemption.

The TPS54JA20 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 TPS54JA20 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 TPS54JA20 device is a lead-free device. It is fully RoHS compliant without exemption.

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TPS54JB20 ACTIVE 2.7-V to 16-V input, 20-A synchronous buck converter with remote sense and latch-off current limit Pin-to-pin device rated for 20-A output current

Technical documentation

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Type Title Date
* Data sheet TPS54JA20 2.7-V to 16-V Input, 12-A Synchronous Buck Converter With Remote Sense, 3-V Internal LDO and Latch-off Current Limit datasheet (Rev. C) 15 Jul 2021
Application note Benefits Using a Buck Converter's External Vcc Bias Pin 25 May 2021
Application note Measuring the Bode Plot for D-CAPx DC/DC Converters 25 May 2021
User guide Using the TPS54JA20EVM-023 12-A, Buck Converter Evaluation Module (Rev. A) 06 May 2020
Technical article Minimize the impact of the MLCC shortage on your power application 29 Mar 2019

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 (...)
document-pdfAcrobat User guide
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Evaluation board

TPS548A29EVM — 15-A DC-DC buck converter evaluation module with 0.6 Vref and internal 4.5-V LDO

The TPS548A29EVM 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 TPS548A29 device. The TPS548A29 has integrated high-side and (...)
document-pdfAcrobat User guide
In stock
Limit: 5
Evaluation board

TPS54JA20EVM — 12-A DC-DC buck converter evaluation module with 0.9 Vref and internal 3-V LDO

The TPS54JA20EVM evaluation module (EVM) is a fully assembled and tested circuit for evaluating the TPS54JA20 step-down converter. The TPS54JA20 is a D-CAP3 synchronous buck converter designed for up to 12-A output current, with an evaluation module designed to demonstrate the small printed (...)
document-pdfAcrobat User guide
In stock
Limit: 5
Simulation model

TPS54JA20 SIMPLIS Transient and Average Model

SNVMBZ2.ZIP (393 KB) - SIMPLIS Model
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Simulation model

TPS54JA20 PSpice Transient Model

SNVMBZ4.ZIP (234 KB) - PSpice 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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Calculation tool

TPS54J06x TPS54Jx20 TPS548x28-9 Excel Calculator Tool (Rev. A)

SLVRBH6A.ZIP (515 KB)
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Package Pins Download
VQFN-HR (RWW) 21 View options

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  • Lead finish/Ball material
  • MSL rating/Peak reflow
  • MTBF/FIT estimates
  • Material content
  • Qualification summary
  • Ongoing reliability monitoring

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