TPS54428DRCR Texas Instruments Integrated Circuit (Other) In Stock
TPS54428DRCR is a 4 A synchronous step-down DC-DC converter from Texas Instruments supporting 4.5 V to 18 V input. Voltage-mode PWM control enables precise, efficient power regulation in industrial and telecom applications. Available from stock with worldwide shipping.
- Manufacturer
- Texas Instruments
- Package
- Other
- Pin Count
- 15
- Lifecycle
- ACTIVE
- Datasheet
- TPS54428DRCR Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $1.0487(MOQ 1)
- Temp Range
- -40.0°C to 85.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- 4 A continuous output current with synchronous rectification for high efficiency across 4.5 V to 18 V input range
- Voltage-mode PWM control delivers tight load and line regulation for noise-sensitive analog and digital loads
- Integrated high-side and low-side MOSFETs in compact 10-pin VSON package reduce external component count
- Wide input voltage range of 4.5 V to 18 V supports 5 V, 12 V, and intermediate bus architectures
Applications
The TPS54428DRCR is designed for point-of-load power conversion in industrial automation, communications infrastructure, and embedded computing systems where a 4.5 V to 18 V input bus must be stepped down to core voltages of 1.0 V to 3.3 V at up to 4 A. Its synchronous topology with voltage-mode PWM control provides the efficiency and regulation accuracy required by DSPs, FPGAs, and multi-core microprocessors. The compact VSON-10 footprint also suits space-constrained applications such as industrial gateways, motor drivers, and ruggedized test equipment.
Specifications
| Pbfree Code | Yes |
| YTEOL | 15 |
| Analog IC - Other Type | SWITCHING REGULATOR |
| Control Mode | VOLTAGE-MODE |
| Control Technique | PULSE WIDTH MODULATION |
| Input Voltage-Max | 18V |
| Input Voltage-Min | 4.5V |
| 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 | 4A |
| Output Voltage-Max | 7V |
| Output Voltage-Min | 0.76V |
| 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 |
| Supply Current-Max (Isup) | 1.4mA |
| Supply Voltage-Nom (Vsup) | 12V |
| Surface Mount | YES |
| Switcher Configuration | BUCK |
| Switching Frequency-Max | 650kHz |
| Technology | BICMOS |
| 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 2 |
| 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 input voltage range does the TPS54428DRCR support, and which bus architectures is it compatible with?
The TPS54428DRCR accepts an input voltage of 4.5 V to 18 V with a nominal operating point at 12 V, making it compatible with standard 5 V, 9 V, 12 V, and 15 V power buses common in industrial and telecom systems. This wide range allows a single design to cover multiple system variants without a component change, reducing BOM complexity and inventory cost in multi-voltage board designs.
How does the synchronous PWM architecture of the TPS54428DRCR improve efficiency compared to non-synchronous buck converters?
The TPS54428DRCR uses integrated synchronous rectification — replacing the external Schottky diode with an on-chip low-side MOSFET — which reduces conduction losses significantly at the 4 A rated output current. At a 12 V input stepping down to 3.3 V at 4 A, synchronous designs typically achieve 90–93% efficiency versus 85–88% for non-synchronous equivalents, extending battery runtime in portable equipment and reducing thermal management requirements in sealed enclosures.
Which output voltage range can be programmed on the TPS54428DRCR, and what external components set it?
Output voltage on the TPS54428DRCR is set by a resistor divider from the output rail to the feedback pin. The device uses a voltage-mode PWM control loop with a fixed reference, allowing output voltages from approximately 0.8 V up to the input voltage minus the dropout. For a 3.3 V output from a 12 V input, a pair of resistors in the tens-of-kilohm range is sufficient, and the 10-pin VSON package keeps total inductor and capacitor footprint under 100 mm² on a standard 4-layer PCB.
What is the expected production availability of TPS54428DRCR given its YTEOL rating?
The TPS54428DRCR carries a YTEOL (Years to End of Life) indicator of 15, suggesting continued production and supply well into the long-term future. The JESD-609 e4 code confirms the part is RoHS compliant and lead-free (Pb-free Code: Yes), meeting current environmental regulations. Buyers planning multi-year production runs can order from stock with confidence, though placing blanket orders or securing bonded inventory is still advisable for programs requiring more than 10,000 units per quarter.
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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.
| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 1+ | $1.5300 | $1.53 |
| 3000+ | $1.0487 | $3146.22 |
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