TPS54821RHLRIn StockTexas Instruments
TPS54821RHLR is a current-mode synchronous buck converter from Texas Instruments with 4.5V–17V input, supporting up to 8A output current and pulse-width modulation control. From $1.62, in stock worldwide shipping.
- Manufacturer
- Texas Instruments
- Package
- Other
- Pin Count
- 14
- Lifecycle
- ACTIVE
- Datasheet
- TPS54821RHLR Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $1.6177(MOQ 1)
- Temp Range
- -40.0°C to 125.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- Current-mode PWM control for fast transient response and simplified loop compensation
- Wide input voltage range of 4.5V to 17V, suitable for 5V and 12V power rails
- Up to 8A output current in a compact 14-pin QFN (VQFN) package
- Integrated high-side and low-side MOSFETs for high-efficiency synchronous rectification
- Pb-free, RoHS-compliant packaging (JESD-609 e4) for green manufacturing
Applications
The TPS54821RHLR is widely used in point-of-load (POL) DC-DC conversion for servers, networking equipment, and industrial automation systems requiring efficient 12V-to-low-voltage regulation. It is also suitable for powering FPGAs, DSPs, and memory modules in telecom and computing platforms. Its compact QFN package and high current capability make it ideal for space-constrained PCB designs in consumer electronics and embedded systems.
Specifications
| Pbfree Code | Yes |
| YTEOL | 15 |
| Analog IC - Other Type | SWITCHING REGULATOR |
| Control Mode | CURRENT-MODE |
| Control Technique | PULSE WIDTH MODULATION |
| Input Voltage-Max | 17V |
| Input Voltage-Min | 4.5V |
| Input Voltage-Nom | 12V |
| JESD-30 Code | S-PQCC-N14 |
| JESD-609 Code | e4 |
| Number of Functions | 1 |
| Number of Outputs | 1 |
| Output Current-Max | 8A |
| Output Voltage-Max | 15V |
| Output Voltage-Min | 0.6V |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | LCC14/18,.14SQ,20 |
| Package Shape | SQUARE |
| Package Style | CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE |
| Peak Reflow Temperature (Cel) | 260 |
| Surface Mount | YES |
| Switcher Configuration | BUCK |
| Switching Frequency-Max | 1600kHz |
| Temperature Grade | AUTOMOTIVE |
| Terminal Finish | Nickel/Palladium/Gold (Ni/Pd/Au) |
| Terminal Form | NO LEAD |
| Terminal Pitch | 0.5mm |
| Terminal Position | QUAD |
| Time@Peak Reflow Temperature-Max (s) | 30 |
| ## TPS54821RHLR Alternates Showing results | Image |
| 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
Compatible alternatives and drop-in replacements for TPS54821RHLR:
suggested
Frequently Asked Questions
What is the input voltage range of the TPS54821RHLR?
The TPS54821RHLR supports an input voltage range of 4.5V to 17V, with a nominal operating voltage of 12V, making it compatible with standard 5V and 12V power supply rails commonly used in computing and industrial applications.
What control mode does the TPS54821RHLR use?
The TPS54821RHLR uses current-mode pulse-width modulation (PWM) control, which provides inherent cycle-by-cycle current limiting, improved transient response, and simplified outer voltage loop compensation compared to voltage-mode control.
What package does the TPS54821RHLR come in?
The TPS54821RHLR is available in a 14-pin VQFN (S-PQCC-N14) QFN package, which offers a small PCB footprint suitable for space-constrained designs. It is Pb-free and compliant with JESD-609 e4 environmental standards.
What are typical applications for the TPS54821RHLR?
Typical applications include point-of-load DC-DC conversion in servers, networking equipment, industrial controllers, FPGA and DSP power supplies, and embedded systems requiring efficient step-down regulation from a 12V or 5V bus.
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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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