TPS54540BQDDARQ1 Texas Instruments Integrated Circuit (Small Outline Packages) In Stock
TPS54540BQDDARQ1 is an automotive-grade 5A step-down DC-DC converter from Texas Instruments supporting 4.5V to 42V input voltage. Features current-mode PWM control, Eco-mode for light-load efficiency, adjustable output from 0.8V to 58.8V, and a small outline package. Available from stock worldwide for automotive and industrial power designs.
- Manufacturer
- Texas Instruments
- Package
- Small Outline Packages
- Pin Count
- 9
- Lifecycle
- ACTIVE
- Datasheet
- TPS54540BQDDARQ1 Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $2.2330(MOQ 25)
- Temp Range
- -40.0°C to 125.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of TPS54540BQDDARQ1?
- Wide 4.5V to 42V input range covering automotive battery, industrial 24V and 48V bus applications
- 5A continuous output current with current-mode PWM control for fast transient response
- Eco-mode technology automatically reduces switching frequency at light loads for high efficiency standby operation
- Adjustable output voltage from 0.8V to 58.8V enabling flexible multi-rail power supply design
- AEC-Q100 automotive-grade qualification (Q1 suffix) for reliable in-vehicle power conversion
What is TPS54540BQDDARQ1 used for?
The TPS54540BQDDARQ1 is designed for automotive infotainment, ADAS, and body electronics systems requiring efficient step-down voltage conversion from the 12V or 24V automotive battery bus. Its wide input range and 5A output current make it suitable for powering FPGA core rails, microcontroller power domains, and DDR memory supplies in industrial automation and motor control equipment. The Eco-mode feature significantly improves efficiency in always-on standby applications such as telematics units and smart sensor nodes that must minimize quiescent power draw.
What are the specifications of TPS54540BQDDARQ1?
| Pbfree Code | Yes |
| Date Of Intro | 2017-02-11 |
| YTEOL | 15 |
| Additional Feature | OUTPUT IN ADJUSTABLE MODE IS 0.8V TO 58.8V |
| Analog IC - Other Type | SWITCHING REGULATOR |
| Control Mode | CURRENT-MODE |
| Control Technique | PULSE WIDTH MODULATION |
| Input Voltage-Max | 42V |
| Input Voltage-Min | 4.5V |
| Input Voltage-Nom | 12V |
| JESD-30 Code | R-PDSO-G8 |
| JESD-609 Code | e4 |
| Number of Functions | 1 |
| Number of Outputs | 1 |
| Output Current-Max | 5A |
| Output Voltage-Max | 41.1V |
| Output Voltage-Min | 0.8V |
| Package Body Material | PLASTIC/EPOXY |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE, HEAT SINK/SLUG, LOW PROFILE |
| Peak Reflow Temperature (Cel) | 260 |
| Screening Level | AEC-Q100 |
| Supply Current-Max (Isup) | 0.0045mA |
| Surface Mount | YES |
| Switcher Configuration | BUCK |
| Switching Frequency-Max | 2500kHz |
| Technology | BICMOS |
| Temperature Grade | AUTOMOTIVE |
| Terminal Finish | Nickel/Palladium/Gold (Ni/Pd/Au) |
| Terminal Form | GULL WING |
| Terminal Pitch | 1.27mm |
| Terminal Position | DUAL |
| Time@Peak Reflow Temperature-Max (s) | 30 |
| ## TPS54540BQDDARQ1 Alternates Showing results | Image |
| Package | Small Outline Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 2 |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.90 |
| Country of Origin | Mexico |
Where can I find the TPS54540BQDDARQ1 datasheet?
TPS54540BQDDARQ1 Datasheet DownloadOfficial datasheet from Texas Instruments
What are equivalent replacements for TPS54540BQDDARQ1?
Compatible alternatives and drop-in replacements for TPS54540BQDDARQ1:
Switching Regulator, Current-mode, 5A, 2500kHz Switching Freq-Max, PDSO8
suggested
suggested
Frequently Asked Questions
What is the input voltage range of the TPS54540BQDDARQ1?
The TPS54540BQDDARQ1 accepts an input voltage range from 4.5V to 42V, with a nominal 12V input, making it suitable for automotive 12V battery systems, 24V industrial buses, and pre-regulated 5V supply rails.
What is the maximum output current of the TPS54540BQDDARQ1?
The TPS54540BQDDARQ1 delivers up to 5A continuous output current using current-mode PWM control, providing fast transient response and reliable overcurrent protection for demanding load applications.
What does Eco-mode mean on the TPS54540BQDDARQ1?
Eco-mode is a proprietary Texas Instruments feature that automatically reduces the switching frequency and enters pulse-skipping operation at light loads, significantly improving efficiency during standby or low-load conditions common in automotive and IoT applications.
Is the TPS54540BQDDARQ1 suitable for automotive use?
Yes, the TPS54540BQDDARQ1 carries AEC-Q100 automotive qualification indicated by the Q1 suffix, and is designed to operate reliably across the full automotive temperature range in applications such as ADAS modules, infotainment systems, and body control units.
What output voltages can the TPS54540BQDDARQ1 produce?
The TPS54540BQDDARQ1 supports an adjustable output voltage range from 0.8V to 58.8V, set by external resistor divider, enabling it to power a wide variety of voltage rails from DDR memory at 1.2V to legacy 5V or 12V subsystems.
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About Texas Instruments
Texas Instruments (TI) is a global semiconductor company headquartered in Dallas, Texas. TI designs and manufactures analog and embedded processing chips used in industrial, automotive, consumer, communications, and enterprise systems.
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