3-V to 28-V, 20-A, synchronous D-CAP buck controller with Eco Mode
Product details
Parameters
Package | Pins | Size
Features
- Conversion input voltage range: 3 V to 28 V
- VDD input voltage range: 4.5 V to 25 V
- Output voltage range: 0.6 V to 5.5 V
- Wide output load range: 0 A to > 20 A
- Built-in 0.6-V (±0.8%) reference
- Built-in LDO linear voltage regulator
- Auto-skip Eco-Mode™ for light-load efficiency
- D-CAP™ mode with 100-ns load-step response
- Adaptive ON-time control architecture with 8 selectable frequency settings
- 4700ppm/°C RDS(on) current sensing
- 0.7-ms, 1.4-ms, 2.8-ms and 5.6-ms selectable internal voltage servo soft start
- Pre-charged start-up capability
- Built-in output discharge
- Open-drain power-good output
- Integrated boost switch
- Built-In OVP/UVP/OCP
- Thermal shutdown (non-latch)
- 3-mm × 3-mm QFN, 16-Pin (RGT) package
Description
The TPS53219A device is a small-sized single buck controller with adaptive ON-time D-CAP mode control. The device is suitable for low output voltage, high current, PC system power rail and similar point-of-load (POL) power supplies in digital consumer products. The small package and minimal pin-count save space on the PCB, while the dedicated EN pin and pre-set frequency selections simplify the power supply design. The skip mode at light load conditions, strong gate drivers, and low-side FET RDS(on) current sensing supports low-loss and high efficiency, over a broad load range. The conversion input voltage (high-side FET drain voltage) range is between 4.5 V and 25 V, and the output voltage range is between 0.6 V and 5.5 V. The TPS53219A is available in a 16-pin, QFN package specified from –40°C to +85°C.
Technical documentation
| Type | Title | Date | |
|---|---|---|---|
| * | Data sheet | TPS53219A 3-V to 28-V Input, D-CAP, Eco-Mode™, synchronous buck controller datasheet (Rev. B) | Feb. 19, 2019 |
| Selection guide | Control-Mode Quick Reference Guide (Rev. A) | Sep. 14, 2017 | |
| Application note | D-CAP(TM) Mode With All-Ceramic Output Capacitor Application | Feb. 03, 2011 |
Design & development
For additional terms or required resources, click any title below to view the detail page where available.Hardware development
Description
The TPS53219EVM-690 evaluation module (EVM) uses the TPS53219. The TPS53219 is a small-size, single buck controller with adaptive on-time D-CAP⢠mode control. It provides a fixed 1.1-V output at up to 25 A from a 12-V input bus. TPS53219EVM-690 also uses the 5-mm x 6-mm TI power block MOSFET (...)
Features
- 25-Adc, steady-state output current
- Support prebias output voltage start-up
- High efficiency and high power density by using TI power block MOSFET
- J1 for selectable switching frequency setting
- J2 for selectable internal voltage servo soft-start
- J3 for enable function
- J6 for auto-skip and forced CCM (...)
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 PMP10770 BOM.pdf (113KB) -
download PMP10770 Assembly Drawing.pdf (48KB) -
download PMP10770 Gerber.zip (314KB)
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
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