TPS51285BRUKR Texas Instruments Integrated Circuit (Quad Flat No-Lead) In Stock
Texas Instruments TPS51285BRUKR is a dual synchronous step-down controller with ultra-low quiescent current, accepting 5 V to 24 V input and providing adjustable outputs alongside integrated 5 V and 3.3 V LDOs in a 20-pin QFN package. It uses voltage-mode PWM control for precise regulation. Available in stock with worldwide shipping.
- Manufacturer
- Texas Instruments
- Package
- Quad Flat No-Lead
- Pin Count
- 21
- Lifecycle
- ACTIVE
- Datasheet
- TPS51285BRUKR Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $0.2869(MOQ 10)
- Temp Range
- -40.0°C to 85.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of TPS51285BRUKR?
- Dual synchronous step-down controller with ultra-low quiescent current for high-efficiency light-load operation
- Wide 5 V to 24 V input voltage range supporting diverse power rail designs including 12 V ATX and notebook systems
- Integrated 5 V and 3.3 V LDO outputs reducing external regulator count in multi-rail power designs
- Voltage-mode PWM control enabling predictable loop compensation and stable output regulation
What is TPS51285BRUKR used for?
TPS51285BRUKR is optimized for notebook computers and embedded computing platforms requiring dual-channel DC-DC regulation from a 12 V rail down to multiple low voltages for CPUs, memory, and peripheral logic. Its ultra-low quiescent current makes it ideal for systems that spend significant time in standby or sleep modes, extending battery life. The 20-pin QFN package supports compact power module designs on densely populated motherboards.
What are the specifications of TPS51285BRUKR?
| Pbfree Code | Yes |
| YTEOL | 15 |
| Additional Feature | 3.3, 5V OUTPUT AVAILABLE. ALSO OPERATES IN ADJUSTABLE MODE RANGE 10% |
| Analog IC - Other Type | DUAL SWITCHING CONTROLLER |
| Control Mode | VOLTAGE-MODE |
| Control Technique | PULSE WIDTH MODULATION |
| Input Voltage-Max | 24V |
| Input Voltage-Min | 5V |
| Input Voltage-Nom | 12V |
| JESD-30 Code | S-PQCC-N20 |
| JESD-609 Code | e4 |
| Number of Functions | 1 |
| Number of Outputs | 2 |
| Output Current-Max | 20A |
| Output Voltage-Max | 5.5V |
| Output Voltage-Min | 4.5V |
| Output Voltage-Nom | 3.3V |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | LCC20,.11SQ,16 |
| Package Shape | SQUARE |
| Package Style | CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE |
| Peak Reflow Temperature (Cel) | 260 |
| Qualification Status | Not Qualified |
| Supply Voltage-Nom (Vsup) | 12V |
| Surface Mount | YES |
| Switcher Configuration | BUCK |
| Switching Frequency-Max | 475kHz |
| Technology | BICMOS |
| Temperature Grade | INDUSTRIAL |
| Terminal Finish | Nickel/Palladium/Gold (Ni/Pd/Au) |
| Terminal Form | NO LEAD |
| Terminal Pitch | 0.4mm |
| Terminal Position | QUAD |
| Time@Peak Reflow Temperature-Max (s) | 30 |
| Package | Quad Flat No-Lead |
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 |
Where can I find the TPS51285BRUKR datasheet?
TPS51285BRUKR Datasheet DownloadOfficial datasheet from Texas Instruments
What are equivalent replacements for TPS51285BRUKR?
Compatible alternatives and drop-in replacements for TPS51285BRUKR:
Switching Controller, Voltage-mode, 20A, 475kHz Switching Freq-Max, BICMOS, PQCC20
Frequently Asked Questions
What is the input voltage range of TPS51285BRUKR, and which power supply architectures does it support?
TPS51285BRUKR accepts an input voltage range of 5 V to 24 V, with a nominal operating point of 12 V, making it compatible with ATX desktop, notebook adapter, and industrial 12 V bus power architectures.
How many step-down output channels does TPS51285BRUKR provide, and what additional LDO rails are integrated?
TPS51285BRUKR provides 2 synchronous step-down output channels with adjustable output voltages, plus 2 integrated LDO regulators fixed at 5 V and 3.3 V, covering up to 4 power rails in a single 20-pin IC.
Why would TPS51285BRUKR be chosen for a notebook design that spends most of its time in suspend mode?
TPS51285BRUKR features ultra-low quiescent current (ULQT) operation, meaning it draws minimal current during light-load or standby conditions, extending battery runtime by hours in notebook suspend or S3 sleep states.
What control topology does TPS51285BRUKR use, and how does it simplify loop compensation design?
TPS51285BRUKR uses voltage-mode pulse width modulation (PWM) control, which provides a well-understood single-loop compensation network, simplifying inductor and capacitor selection for stable regulation across the 5 V to 24 V input range.
How compact is the TPS51285BRUKR package, and what board-space saving does it offer versus discrete dual-channel solutions?
TPS51285BRUKR uses a 20-pin QFN package measuring approximately 4 mm x 4 mm, integrating 2 controllers and 2 LDOs in under 16 mm² of board area, compared to separate ICs that would require 30 mm² or more.
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Why Buy from FindMyChip
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 |
|---|---|---|
| 10+ | $0.9820 | $9.82 |
| 100+ | $0.8030 | $80.30 |
| 500+ | $0.7070 | $353.50 |
| 605+ | $0.3310 | $200.26 |
| 785+ | $0.3200 | $251.20 |
| 1050+ | $0.2869 | $301.25 |
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