2.7-V to 16-V input, 12-A synchronous buck converter with remote sense and latch-off current limit
TPS54JA20
Product details
Parameters
Package | Pins | Size
Features
- 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
All trademarks are the property of their respective owners.
Description
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.
Technical documentation
= Top documentation for this product selected by TI
| Type | Title | Date | |
|---|---|---|---|
| * | Datasheet | 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. B) | Jun. 22, 2020 |
| User guides | Using the TPS54JA20EVM-023 12-A, Buck Converter Evaluation Module (Rev. A) | May 06, 2020 | |
| Technical articles | Minimize the impact of the MLCC shortage on your power application | Mar. 29, 2019 |
Design & development
For additional terms or required resources, click any title below to view the detail page where available.Hardware development
Description
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 (...)
Features
- D-CAP3 control mode with fast load step response
- Supports all ceramic output capacitors
- Auto-skipping for high light load efficiency
- Differential remote sense for high output accuracy
Description
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 (...)
Features
- D-CAP3 control mode with fast load step response
- Supports all ceramic output capacitors
- Auto-skipping for high light load efficiency
- Differential remote sense for high output accuracy
Description
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 (...)
Features
- D-CAP3 control mode with fast load step response
- Supports all ceramic output capacitors
- Auto-skipping for high light load efficiency
- Differential remote sense for high output accuracy
Design tools & simulation
SNVMBZ2.ZIP (393 KB) - SIMPLIS Model
SNVMBZ4.ZIP (234 KB) - PSpice Model
PSPICE-FOR-TI — 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 (...)
Features
- Leverages Cadence PSpice Technology
- Preinstalled library with a suite of digital models to enable worst-case timing analysis
- Dynamic updates ensure you have access to most current device models
- Optimized for simulation speed without loss of accuracy
- Supports simultaneous analysis of multiple products
- (...)
CAD/CAE symbols
| Package | Pins | Download |
|---|---|---|
| VQFN-HR (RWW) | 21 | View options |
Ordering & quality
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Support & training
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