TPS54334DRCR Texas Instruments Integrated Circuit (Other) In Stock
The TPS54334DRCR is a 3 A, 28 V input synchronous step-down (buck) DC-DC converter with integrated high- and low-side MOSFETs. It operates from a 4.2 V to 28 V input, delivers an adjustable output from 0.8 V, and switches at up to 2.5 MHz in a compact 10-pin VFDFN package.
- Manufacturer
- Texas Instruments
- Package
- Other
- Pin Count
- 15
- Lifecycle
- ACTIVE
- Datasheet
- TPS54334DRCR Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $0.6495(MOQ 100)
- Temp Range
- -40.0°C to 85.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- 3 A continuous output current with integrated high- and low-side MOSFETs for high efficiency up to 95%
- Wide 4.2 V to 28 V input voltage range supports automotive and industrial 12 V / 24 V rails
- Adjustable switching frequency up to 2.5 MHz enables small external inductors and capacitors
- Eco-mode light-load operation reduces quiescent current to 60 µA for standby power savings
- 10-pin VFDFN (3 mm × 3 mm) package with exposed thermal pad minimises PCB footprint
Applications
The TPS54334DRCR is well-suited for industrial equipment power rails, point-of-load conversion from 12 V or 24 V bus voltages in factory automation and test systems. It is also used in automotive non-safety accessories and infotainment boards where a compact, efficient 3 A buck regulator operating across the full 4.2 V to 28 V input range is required. Telecom and networking line cards leverage its high switching frequency to achieve low-profile magnetics while meeting strict EMI constraints.
Specifications
| Pbfree Code | Yes |
| YTEOL | 15 |
| Analog IC - Other Type | SWITCHING REGULATOR |
| Control Mode | CURRENT-MODE |
| Control Technique | PULSE WIDTH MODULATION |
| Input Voltage-Max | 28V |
| Input Voltage-Min | 4.2V |
| JESD-30 Code | S-PDSO-N10 |
| JESD-609 Code | e4 |
| Number of Functions | 1 |
| Number of Outputs | 1 |
| Output Current-Max | 3A |
| Output Voltage-Max | 25V |
| Output Voltage-Min | 0.8V |
| Package Body Material | PLASTIC/EPOXY |
| Package Shape | SQUARE |
| Package Style | SMALL OUTLINE, HEAT SINK/SLUG, VERY THIN PROFILE |
| Peak Reflow Temperature (Cel) | 260 |
| Surface Mount | YES |
| Switcher Configuration | BUCK |
| Switching Frequency-Max | 570kHz |
| Temperature Grade | INDUSTRIAL |
| 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 |
| Country of Origin | Philippines |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What is the maximum continuous output current the TPS54334DRCR can supply, and how does thermal performance affect it?
The TPS54334DRCR is rated for 3 A continuous output current. At full load the integrated MOSFETs dissipate heat through the exposed 3 mm × 3 mm thermal pad; with adequate copper pour and airflow the device maintains regulation from -40 °C to 150 °C junction temperature, allowing sustained 3 A delivery in most industrial environments.
How wide is the TPS54334DRCR input voltage range, and which power rails does that cover?
The device accepts inputs from 4.2 V to 28 V, covering single-cell Li-ion packs at approximately 4.2 V, standard 5 V USB or logic rails, 12 V automotive and industrial bus voltages, and 24 V process-control rails. This wide range eliminates the need for separate pre-regulators in mixed-voltage systems.
When is TPS54334DRCR a practical alternative to discrete MOSFET + controller solutions in a 12 V industrial design?
For load currents up to 3 A the TPS54334DRCR replaces two external MOSFETs, a gate driver, and separate bootstrap components, saving roughly 30 % PCB area compared to a discrete design. Its current-mode PWM control and integrated 60 µA Eco-mode cut bill-of-materials cost while meeting efficiency targets above 90 % at typical 12 V input, 5 V / 3 A output conditions.
What switching frequency does TPS54334DRCR support, and how does that influence passive component selection?
The switching frequency is adjustable up to 2.5 MHz via a single resistor. Higher frequencies—for example 1 MHz to 2 MHz—allow inductors in the 1 µH to 2.2 µH range and output capacitors below 47 µF, reducing solution height to under 2 mm and fitting space-constrained PCBs in portable or automotive applications.
What is the minimum output voltage achievable with TPS54334DRCR?
The reference voltage is 0.8 V, so the output can be regulated down to 0.8 V by setting the resistor-divider feedback network accordingly. This covers modern FPGA and processor core rails that require sub-1 V supplies, making the device suitable for SoC power trees where core voltages of 0.9 V or 1.0 V are common.
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| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 100+ | $1.3364 | $133.64 |
| 250+ | $1.2606 | $315.16 |
| 285+ | $0.7023 | $200.16 |
| 370+ | $0.6759 | $250.08 |
| 465+ | $0.6495 | $302.02 |
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