TPS54540-Q1
42V, 5A, Step-Down Regulator with Integrated High Side MOSFET
Exact equivalent in functionality and parametrics to the compared device:
Product details
Parameters
We are not able to display this information. Please refer to the product data sheet.Features
- Qualified for Automotive Applications
- AEC-Q100 Qualified With the Following Results:
- Device Temperature Grade 1: –40°C to 125°C
Ambient Operating Temperature Range - Device HBM ESD Classification Level H1C
- Device CDM ESD Classification Level C3B
- Device Temperature Grade 1: –40°C to 125°C
- High-Efficiency at Light Loads With Pulse-
Skipping Eco-mode™ - 92-mΩ High-Side MOSFET
- 146-µA Operating Quiescent Current and 2-µA
Shutdown Current - 100-kHz to 2.5-MHz Adjustable Switching
Frequency - Synchronizes to External Clock
- Low Dropout at Light Loads With Integrated
BOOT Recharge FET - Adjustable UVLO Voltage and Hysteresis
- 0.8-V 1% Internal Voltage Reference
- 8-Pin HSOP PowerPAD™ Package
- –40°C to 150°C TJ Operating Range
- Supported by WEBENCH® Software Tool
Description
The TPS54540-Q1 device is a 42-V, 5-A, step-down regulator with an integrated high-side MOSFET. The device survives load-dump pulses up to 65 V per ISO 7637. Current mode control provides simple external compensation and flexible component selection. A low-ripple pulse-skip mode reduces the no load supply current to 146 µA. Shutdown supply current is reduced to 2 µA when the enable pin is pulled low.
Undervoltage lockout is internally set at 4.3 V but can be increased using an external resistor divider at the enable pin. The output voltage start-up ramp is internally controlled to provide a controlled start-up and eliminate overshoot.
A wide adjustable frequency range allows either efficiency or external component size to be optimized. Output current is limited cycle-by-cycle. Frequency foldback and thermal shutdown protect internal and external components during an overload condition.
The TPS54540-Q1 is available in an 8-pin thermally-enhanced HSOP PowerPAD package.
Technical documentation
Type | Title | Date | |
---|---|---|---|
* | Datasheet | TPS54540-Q1 4.5-V to 42-V Input, 5-A, Step-Down DC-DC Converter With Eco-mode™ datasheet (Rev. B) | Nov. 25, 2015 |
Application note | NRND & Differences TPS54340/360/540/560 and TPS54340B/360B/540B/560B | Apr. 05, 2019 | |
Technical articles | Minimize the impact of the MLCC shortage on your power application | Mar. 29, 2019 | |
Selection guide | Automotive Infotainment EE Buck Converter/Controller Selection Guide (Rev. A) | Jan. 15, 2019 | |
User guide | Evaluation Module for the TPS54540-Q1 Step-Down Converter | Sep. 24, 2013 |
Design & development
For additional terms or required resources, click any title below to view the detail page where available.Hardware development
Description
The TPS54540-Q1EVM-593 is a fully assembled and tested circuit for evaluating the automotive qualified TPS54540-Q1 step-down converter. The TPS54540-Q1EVM-593 operates from a 7V to 42V input (12V nominal) and provides a 5V output at 5A. Additional input filtering is used for reducing conducted (...)
Features
- 4.5 V to 42 V Input Supply Voltage
- Integrated 90-mΩ High Side N-Channel MOSFET
- 146 µA Operating Quiescent Current
- 2 µA Shutdown Current
- 100 kHz to 2.5 MHz Switching Frequency
- Adjustable UVLO Voltage and Hysteresis
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 TIDA-01179 BOM.pdf (76KB) -
download TIDA-01179 Assembly Drawing.pdf (376KB) -
download TIDA-01179 PCB.pdf (2162KB) -
download TIDA-01179 CAD Files.zip (953KB) -
download TIDA-01179 Gerber.zip (524KB)
Design files
-
download PMP8726 BOM.pdf (19KB) -
download PMP8726 Assembly Drawing.pdf (158KB) -
download PMP8726 PCB.pdf (364KB)
CAD/CAE symbols
Package | Pins | Download |
---|---|---|
SO PowerPAD (DDA) | 8 | 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
Support & training
TI E2E™ forums with technical support from TI engineers
Content is provided "as is" by TI and community contributors and does not constitute TI specifications. See terms of use.
If you have questions about quality, packaging or ordering TI products, see TI support.