TPS55289RYQR Texas Instruments Integrated Circuit (Other) In Stock
Texas Instruments TPS55289RYQR is a 30 V, 8 A four-switch buck-boost converter with I2C interface, supporting 3 V to 30 V input and programmable output voltage. Current-mode PWM and PFM control maximize efficiency across load ranges with worldwide shipping.
- Manufacturer
- Texas Instruments
- Package
- Other
- Pin Count
- 23
- Lifecycle
- ACTIVE
- Datasheet
- TPS55289RYQR Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $1.9184(MOQ 25)
- Temp Range
- -40.0°C to 125.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- 3 V to 30 V wide input range with 8 A output current supports diverse battery chemistries and industrial supply rails in a single design
- I2C programmable output voltage and control enable dynamic voltage scaling and remote power management without resistor changes
- Four-switch buck-boost topology maintains regulation when input voltage crosses output, ideal for hold-up capacitor and variable battery bus designs
Applications
The TPS55289RYQR is ideal for battery-powered industrial equipment and portable instruments where the input voltage from a 2-cell to 8-cell lithium battery can swing above and below the required output rail. Its I2C interface allows a host MCU to dynamically adjust the output voltage, making it suitable for programmable bench supplies, adaptive radio-frequency power amplifier biasing, and FPGA core voltage sequencing. Automotive accessory and robotics designs that must regulate from a 12 V or 24 V bus during load-dump transients up to 30 V also benefit from this device.
Specifications
| Pbfree Code | Yes |
| YTEOL | 15 |
| Additional Feature | ALSO HAS PFM CONTROL TECHNIQUE |
| Analog IC - Other Type | SWITCHING REGULATOR |
| Control Mode | CURRENT-MODE |
| Control Technique | PULSE WIDTH MODULATION |
| Input Voltage-Max | 30V |
| Input Voltage-Min | 3V |
| Input Voltage-Nom | 12V |
| JESD-30 Code | R-PQCC-N21 |
| JESD-609 Code | e3 |
| Number of Functions | 1 |
| Output Current-Max | 5A |
| Output Voltage-Max | 22V |
| Output Voltage-Min | 0.8V |
| Output Voltage-Nom | 20V |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | LCC21,.12X.2(UNSPEC) |
| Package Shape | RECTANGULAR |
| Package Style | CHIP CARRIER, VERY THIN PROFILE |
| Peak Reflow Temperature (Cel) | 260 |
| Surface Mount | YES |
| Switcher Configuration | BUCK-BOOST |
| Switching Frequency-Max | 2200kHz |
| Technology | BICMOS |
| Terminal Finish | Tin (Sn) |
| Terminal Form | NO LEAD |
| Terminal Position | QUAD |
| 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 |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What input voltage range does the TPS55289RYQR support and how does this help in battery-powered designs?
The TPS55289RYQR accepts input voltages from 3 V to 30 V, covering the full discharge curve of 1-cell to 7-cell lithium-ion packs and standard 12 V or 24 V industrial rails. Its four-switch buck-boost topology keeps the output regulated even as the battery voltage crosses the output setpoint, eliminating power interruptions in portable equipment.
How does the I2C interface on TPS55289RYQR simplify power rail tuning during product development?
The I2C interface lets a microcontroller or host processor adjust the output voltage in real time without swapping resistors, cutting iteration time from hours to seconds during development. In production, the same interface enables dynamic voltage scaling, allowing a processor to lower the supply to 0.9 V in sleep mode and ramp it back to 1.2 V at full load, saving significant system-level energy.
What is the maximum continuous output current of TPS55289RYQR and which load profiles does it suit?
The converter delivers up to 8 A continuous output current, making it suitable for powering FPGA core rails, high-power WiFi modules, and multi-core processors that draw 3 A to 6 A under full load. The PFM control mode improves light-load efficiency below 500 mA, broadening its fit to designs with highly variable load profiles such as IoT gateways and motor pre-drivers.
Why would a designer select TPS55289RYQR for an automotive accessory supply rather than a simple buck converter?
Automotive accessory supplies must withstand load-dump transients up to 40 V and cranking dips below 6 V, conditions where a buck converter loses regulation. TPS55289RYQR's 30 V maximum input and buck-boost topology keep the output stable from a 9 V crank event through a 28 V alternator spike, with an 8 A output sustaining loads such as instrument clusters, telematics units, or seat heater drivers without a secondary protection circuit.
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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 |
|---|---|---|
| 25+ | $4.7008 | $117.52 |
| 91+ | $2.2135 | $201.43 |
| 117+ | $2.1398 | $250.36 |
| 157+ | $1.9184 | $301.19 |
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