TPS54340-Q1
Automotive 4.5V-42VIN, 3.5A, Step-Down Converter with Eco-mode™
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 HSOIC With PowerPAD™ Package
- –40°C to 150°C TJ Operating Range
- Supported by WEBENCH® Software Tool
Description
The TPS54340-Q1 device is a 42-V, 3.5-A, step-down regulator with an integrated high-side MOSFET. The device survives load-dump pulses up to 45 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 1 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 for optimization of either efficiency or external component size. Frequency foldback and thermal shutdown protects internal and external components during an overload condition.
The TPS54340-Q1 device is available in an 8-pin thermally-enhanced HSOIC PowerPAD package.
Technical documentation
Type | Title | Date | |
---|---|---|---|
* | Datasheet | TPS54340-Q1 4.5-V to 42-V Input, 3.5-A, Step-Down DC-DC Converter With Eco-Mode™ datasheet (Rev. A) | Nov. 16, 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 TPS54340-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 TPS54340-Q1EVM-593 is a fully assembled and tested circuit for evaluating the TPS54340-Q1 Step-Down Converter. The TPS54340-Q1EVM-593 operates from a 7V to 42V input (12V nominal) and provides a 5V output at 3.5A. Additional input filtering is used for reducing conducted emissions.
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 PMP4471 BOM.pdf (43KB) -
download PMP4471 CAD Files.zip (170KB)
Design files
-
download PMP4425 BOM.pdf (41KB) -
download PMP4425 CAD Files.zip (179KB)
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
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