2.7-V to 16-V input, 20-A synchronous step-down converter with remote sense and hiccup current limit
Product details
Parameters
Package | Pins | Size
Features
- 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: 0.6-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 0.6-V ±1% VREF for –40°C to +125°C junction temperature
- Selectable FCCM or auto-skipping 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
- Hiccup for OC and UV faults, latch-off for OV Fault
- 4-mm × 3-mm, 21-pin QFN package
- Pin compatible with 15-A TPS548A28
- Fully RoHS-compliant without exemption
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Description
The TPS548B28 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 TPS548B28 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 TPS548B28 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 | TPS548B28 2.7-V to 16-V Input, 20-A Synchronous Buck Converter With Remote Sense, 3-V Internal LDO and Hiccup Current Limit datasheet | Dec. 07, 2020 |
| Application note | Point-of-Load Solutions in Servers for Intel® Xeon® Sapphire Rapids Processors | Jan. 08, 2021 | |
| More literature | TPS548B28EVM-023 EU Declaration of Conformity (DoC) | Jun. 18, 2020 | |
| Application note | Point-of-Load Solutions for Data Center App Implementing VR13.HC Vccin Spec (Rev. A) | Jan. 08, 2020 | |
| User guide | TPS548B28EVM-023 20-A, Buck Converter Evaluation Module | Jun. 27, 2019 | |
| 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 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 (...)
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 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 (...)
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
SNVMC07.ZIP (191 KB) - PSpice Model
SNVMC08.ZIP (562 KB) - SIMPLIS 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
Information included:
- RoHS
- REACH
- Device marking
- Lead finish/Ball material
- MSL rating/Peak reflow
- MTBF/FIT estimates
- Material content
- Qualification summary
- Ongoing reliability monitoring
Recommended products may have parameters, evaluation modules or reference designs related to this TI product.
Support & training
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