3-V to 28-V, 40-A, synchronous D-CAP2 buck controller with PMBus
Product details
Parameters
Package | Pins | Size
Features
- Conversion Input Voltage 3 V to 28 V
- VDD input voltage 4.5 V to 28 V
- Output voltage 0.6 V to 5.5 V
- Supports all ceramic output capacitors
- Reference voltage: 600 mV ±0.5% tolerance
- ±9% Voltage adjustment with PMBus™
- Built-in 5-V LDO
- D-CAP2™ mode with 100-ns load-step response
- Auto-skip Eco-mode™ for light-load efficiency
- Adaptive on-time control architecture with eight selectable frequencies using PMBus
- Supports voltage margining using PMBus
- Programmable soft-start time using PMBus
- Programmable power-on delay using PMBus
- Programmable VDD UVLO level using PMBus
- Fault report using PMBus
- Pre-charged start-up capability
- Built-In output discharge
- Power-good output with programmable delay
- Internal overvoltage, undervoltage, and overcurrent limit protections
- Thermal shutdown (non-latch)
- 3 mm × 3 mm, 16-pin, QFN package
- Create a custom design using the TPS53819A with the WEBENCH® Power Designer
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Description
The TPS53819A device is a small-sized, single buck controller with adaptive on-time D-CAP2 mode control and PMBus. The device is suitable for low output voltage and high current, system power rail, or similar point-of-load (POL) power supply in digital consumer products. Small package with minimal pin-count saves space on the PCB, while the programmability and fault report via PMBus simplify the power supply design. The skip-mode at light-load condition combined with strong gate drivers and low-side FET on-resistance (RDS(on)) current sensing can support low-loss and high efficiency operation, over a broad load range. The conversion input voltage, which is the high-side FET drain voltage, ranges from 3 V to 28 V. The supply voltage (VDD) is from 4.5 V to 28 V. The output voltage ranges from 0.6 V to 5.5 V. The device is available in a 16-pin, QFN package and is specified from –40°C to +85°C.
Technical documentation
Type | Title | Date | |
---|---|---|---|
* | Datasheet | TPS53819A 3-V to 28-V Input, 40-A, Eco-Mode™, D-CAP2™ Synchronous Buck Controller With PMBus™ datasheet (Rev. B) | Apr. 05, 2019 |
Application note | Programming the TPS53819A 3-V to 28-V Input, 40-A, Eco-mode™, D-CAP2™ | May 05, 2020 | |
White paper | Power solution options for data center applications (Rev. A) | Feb. 27, 2020 | |
Technical article | Select the correct PMBus POL solution for your application | Aug. 03, 2015 | |
User guide | Using the TPS53819AEVM-123 Step-Down Controller Evaluation Module (Rev. A) | Dec. 06, 2012 |
Design & development
For additional terms or required resources, click any title below to view the detail page where available.Hardware development
Description
Features
- Conversion Input Voltage Range: 3 V to 28 V
- Output Voltage Range: 0.6 V to 5.5 V
- DCAP2 Mode with 100-ns Load Step Response
- Adaptive On-Time Control with Eight Selectable Frequencies via PMBus
- Programmable Soft-Start Time, Power-On Delay, VDD UVLO Level, Power Good Output Delay via PMBus
- Internal (...)
Design tools & simulation
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
- (...)
Reference designs
Design files
-
download PMP11220 BOM.pdf (177KB) -
download PMP11220 Assembly Drawing.pdf (95KB) -
download PMP11220 Gerber.zip (346KB)
Design files
-
download PMP10778 BOM.pdf (105KB) -
download PMP10778 Assembly Drawing.pdf (83KB) -
download PMP10778 Gerber.zip (875KB)
CAD/CAE symbols
Package | Pins | Download |
---|---|---|
VQFN (RGT) | 16 | View options |
Ordering & quality
- 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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