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TPS542A50
4-V to 18-V input, voltage mode, 15-A synchronous SWIFT™ step-down converter with I2C interface
Data sheet
TPS542A50
- Integrated 9.1-mΩ and 2.6-mΩ MOSFETs support up to 15-A output current
- 0.5-V to 5.5-V output voltage range
- Fixed-frequency voltage control mode with selectable internal compensation
- Seven selectable frequency settings from 400 kHz to 2.2 MHz
- Synchronizes to an external clock
- Fully differential remote sense
- Device configurable by analog pinstrap resistors or through I2C interface
- VOUT adjustment with controlled slew rate through I2C from –20% to +10% in 0.028% steps
- Six selectable overcurrent limits, four soft-start slew rates, and two I2C addresses
- Monotonic start-up into pre-biased outputs
- EN pin allowing for adjustable input UVLO
- Power good indicator
- 17-µA typical shutdown quiescent current draw
- Selectable FCCM or PFM for light load efficiency
- –40 to +150°C operating junction temperature
- 4-mm × 4.5-mm VQFN package
- Create a custom design using the TPS542A50 with the WEBENCH Power Designer
The TPS542A50 is a high-efficiency synchronous buck converter with differential remote sense and I2C. This device features fixed-frequency, voltage-control mode with pinstrap selectable internal compensation for reduced system cost and complexity. The PWM can be synchronized to an external clock through the SYNC pin. Other key features include PFM for high light load efficiency, low shutdown quiescent current draw, adjustable UVLO through the EN pin and monotonic start up into pre-biased conditions. This device also features an I2C interface for device configuration and output voltage adjustment. The TPS542A50 is a lead-free device. It is fully RoHS compliant without exemption.
Technical documentation
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View all 5 | Type | Title | Date | ||
|---|---|---|---|---|
| * | Data sheet | TPS542A50 4-V to 18-V Input, 15-A, Synchronous Buck Converter With Differential Remote Sense and I2C datasheet (Rev. C) | PDF | HTML | 17 Dec 2021 |
| White paper | Understanding Functional Safety FIT Base Failure Rate Estimates per IEC 62380 and SN 29500 (Rev. A) | PDF | HTML | 30 Apr 2024 | |
| User guide | TPS542A50 SWIFT™ Step-Down Converter Evaluation Module User's Guide (Rev. A) | PDF | HTML | 11 Oct 2021 | |
| Application note | Point-of-Load Solutions for Network Interface Cards (NIC) | PDF | HTML | 08 Sep 2021 | |
| Certificate | TPS542A50EVM-059 EU Declaration of Conformity (DoC) | 02 Sep 2020 |
Design & development
For additional terms or required resources, click any title below to view the detail page where available.
Evaluation board
TPS542A50EVM-059 — 4-V to 18-V, 15-A synchronous SWIFT™ step-down converter with I2C interface evaluation module
The TPS542A50EVM-059 evaluation module (EVM) allows users to evaluate the TPS542A50. The TPS542A50 is a fixed frequency with non-compensation external synchronous buck converter with integrated MOSFETs. It provides a fixed 1-V output at up to 15 A from a 12-V input bus.
| Package | Pins | Download |
|---|---|---|
| VQFN-HR (RJM) | 33 | View options |
Ordering & quality
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