Automotive 4.5V to 60V Input 5A Step-Down DC-DC Converter With Soft-Start and Eco-mode™
Product details
Parameters
Package | Pins | Size
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 H1C
- Device CDM ESD Classification C5
- High Efficiency at Light Loads With Pulse-Skipping Eco-mode™ Control
- 87-mΩ High-Side MOSFET
- 152-µA Operating Quiescent Current and 2-µA Shutdown Current
- 100-kHz to 2.5-MHz Switching Frequency
- Synchronizes to External Clock
- Low-Dropout Operation at Light Loads With Integrated BOOT Recharge FET
- Adjustable UVLO Voltage and Hysteresis
- Power-Good Output Monitor for Undervoltage and Overvoltage
- Adjustable Soft-Start and Sequencing
- 0.8-V 1% Internal Voltage Reference
- 10-Pin WSON With Thermal Pad Package
- –40°C to 150°C TJ Operating Range
- Create a Custom Design using the TPS54561-Q1 with the WEBENCH® Power Designer
Description
The TPS54561-Q1 device is a 60-V, 5-A, step-down regulator with an integrated high-side MOSFET. The device survives load dump pulses up to 65 V per ISO7637. Current-mode control provides simple external compensation and flexible component selection. A low-ripple pulse-skip mode and 152-µA supply current enables high efficiency at light loads. Pulling the enable pin low reduces shutdown supply current to 2 µA.
Undervoltage lockout has an internal 4.3-V setting. Use of an external resistor divider at the EN pin can increase the setting. The soft-start pin controls the output-voltage start-up ramp and also configures sequencing or tracking. An open-drain power-good signal indicates the output is within 93% to 106% of its nominal voltage.
A wide adjustable switching-frequency range allows optimization for either efficiency or external component size. Cycle-by-cycle current limit, frequency foldback, and thermal shutdown protect the device during an overload condition.
The TPS54561-Q1 is available in a 10-pin, 4-mm × 4-mm WSON package.
Technical documentation
Type | Title | Date | |
---|---|---|---|
* | Datasheet | TPS54561-Q1 4.5-V to 60-V Input, 5-A, Step-Down DC-DC Converter With Eco-mode™ datasheet (Rev. A) | Jan. 19, 2017 |
Technical articles | Minimize the impact of the MLCC shortage on your power application | Mar. 29, 2019 | |
Application note | Designing Type III Compensation for Current Mode Step-Down Converters (Rev. A) | Sep. 15, 2010 |
Design & development
For additional terms or required resources, click any title below to view the detail page where available.Hardware development
Description
The TPS54561EVM-555 is a fully assembled and tested circuit for evaluating the TPS54561 Step-Down Converter. The TPS54561EVM-555 operates from a 7.0V to 60V input (12V nominal) and provides a 5.0V output at 5.0A.
Features
- 4.5 V to 60 V Input Supply Voltage
- Integrated 87-mΩ High Side N-Channel MOSFET
- 152 µA Operating Quiescent Current
- 2 µA Shutdown Current
- 100 kHz to 2.5 MHz Switching Frequency
- Adjustable UVLO Voltage and Hysteresis
- Adjustable Soft-Start and Sequencing
- UV and OV Power Good Output
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 PMP4442 BOM.pdf (66KB) -
download PMP4442 Gerber.zip (715KB)
Design files
-
download TIDA-00804 BOM (from PMP4442).pdf (131KB) -
download TIDA-00804 Assembly Drawing (from PMP4442).pdf (918KB) -
download TIDA-00804 Fabrication Drawing (from PMP4442).pdf (582KB) -
download TIDA-00804 PCB Layer Plots (from PMP4442).pdf (2150KB) -
download TIDA-00804 CAD Files (from PMP4442).zip (706KB) -
download TIDA-00804 Gerber (from PMP4442).zip (1770KB)
CAD/CAE symbols
Package | Pins | Download |
---|---|---|
WSON (DPR) | 10 | 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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