TPS54140ADRCR Texas Instruments Integrated Circuit (Other) In Stock
The TPS54140ADRCR is a 1.5A step-down DC-DC converter accepting 3.5V to 42V input with Eco-Mode for high efficiency at light loads. Features current-mode PWM control with integrated high-side MOSFET in a compact 10-pin WSON package.
- Manufacturer
- Texas Instruments
- Package
- Other
- Pin Count
- 10
- Lifecycle
- ACTIVE
- Datasheet
- TPS54140ADRCR Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $0.9735(MOQ 1)
- 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 TPS54140ADRCR?
- Wide 3.5V to 42V input voltage range with integrated high-side MOSFET for versatile power supply designs
- Eco-Mode operation reduces quiescent current to 107 µA for improved light-load efficiency
- Current-mode PWM control with adjustable switching frequency up to 2.5 MHz for compact filter designs
What is TPS54140ADRCR used for?
The TPS54140ADRCR is well suited for industrial power supplies, automotive infotainment systems, and point-of-load regulation in communications equipment. Its wide 3.5V to 42V input range enables direct connection to 12V, 24V, or 36V bus rails. The Eco-Mode feature makes it ideal for battery-backed or energy-sensitive applications requiring low standby current.
What are the specifications of TPS54140ADRCR?
| Pbfree Code | Yes |
| YTEOL | 15 |
| Analog IC - Other Type | SWITCHING REGULATOR |
| Control Mode | CURRENT-MODE |
| Control Technique | PULSE WIDTH MODULATION |
| Input Voltage-Max | 42V |
| Input Voltage-Min | 3.5V |
| Input Voltage-Nom | 12V |
| JESD-30 Code | S-PDSO-N10 |
| JESD-609 Code | e4 |
| Number of Functions | 1 |
| Number of Outputs | 1 |
| Output Current-Max | 1.5A |
| Output Voltage-Max | 39V |
| Output Voltage-Min | 0.8V |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | SOLCC10,.12,20 |
| Package Shape | SQUARE |
| Package Style | SMALL OUTLINE, HEAT SINK/SLUG, VERY THIN PROFILE |
| Peak Reflow Temperature (Cel) | 260 |
| Qualification Status | Not Qualified |
| Surface Mount | YES |
| Switcher Configuration | BUCK |
| Switching Frequency-Max | 2500kHz |
| Temperature Grade | AUTOMOTIVE |
| Terminal Finish | Nickel/Palladium/Gold (Ni/Pd/Au) |
| Terminal Form | NO LEAD |
| Terminal Pitch | 0.5mm |
| Terminal Position | DUAL |
| Time@Peak Reflow Temperature-Max (s) | 30 |
| Package | Other |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 1 |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.90 |
Where can I find the TPS54140ADRCR datasheet?
TPS54140ADRCR Datasheet DownloadOfficial datasheet from Texas Instruments
What are equivalent replacements for TPS54140ADRCR?
Compatible alternatives and drop-in replacements for TPS54140ADRCR:
Switching Regulator, Current-mode, 1.5A, 2500kHz Switching Freq-Max, PDSO10
Frequently Asked Questions
What is the maximum input voltage the TPS54140ADRCR can handle in a 24V industrial bus application?
The TPS54140ADRCR supports an input voltage range of 3.5V to 42V, making it suitable for 24V industrial bus systems with transient overvoltage events up to 42V. This headroom ensures reliable operation even under load-dump or surge conditions commonly found in factory automation equipment.
How does Eco-Mode improve efficiency in battery-powered designs using TPS54140ADRCR?
In Eco-Mode, the TPS54140ADRCR reduces quiescent current to approximately 107 µA, significantly improving light-load efficiency compared to forced continuous conduction mode. This is critical for IoT sensors or battery-backed systems where standby power draw directly impacts runtime, often extending battery life by 30% or more at loads below 10 mA.
Which output voltage range can be set on the TPS54140ADRCR, and how is it configured?
The TPS54140ADRCR output voltage is adjustable from 0.8V to 39V using an external resistor divider connected to the FB pin. The internal reference is 0.8V, so a 1.5A maximum output current can be programmed across a wide range, covering 1.8V, 3.3V, 5V, and 12V rails commonly used in embedded systems.
Is the TPS54140ADRCR a suitable alternative to discrete MOSFET-plus-controller designs for 12V-to-3.3V conversion?
Yes. The TPS54140ADRCR integrates a high-side MOSFET rated for 1.5A continuous output current with adjustable switching frequency up to 2.5 MHz, eliminating the external gate driver and power FET required in discrete designs. This reduces BOM count by 5 to 8 components and shrinks PCB footprint to under 15 mm² when using a 10-pin WSON package.
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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.
More from Texas Instruments
| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 1+ | $5.8560 | $5.86 |
| 100+ | $1.9699 | $196.99 |
| 180+ | $1.1232 | $202.18 |
| 235+ | $1.0858 | $255.16 |
| 310+ | $0.9735 | $301.79 |
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