TPS628680ARQYR Texas Instruments Integrated Circuit (Other) In Stock
TPS628680ARQYR is a 4 A synchronous step-down DC-DC converter from Texas Instruments with a 2.4 V to 5.5 V input range and I2C programmable output. It integrates current-mode PWM control for fast transient response in a tiny 1.5 mm x 2.5 mm QFN-9 package. Ideal for space-critical portable and wearable power rails.
- Manufacturer
- Texas Instruments
- Package
- Other
- Pin Count
- 9
- Lifecycle
- ACTIVE
- Datasheet
- TPS628680ARQYR Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $1.1200(MOQ 100)
- Temp Range
- -40.0°C to 125.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- 4 A continuous output current from a 2.4 V to 5.5 V input range covering single-cell Li-Ion and 5 V USB rails
- I2C interface enables dynamic output voltage scaling and power sequencing without board rework
- Ultra-compact 1.5 mm x 2.5 mm QFN-9 footprint for tight space-constrained wearable and IoT designs
Applications
TPS628680ARQYR is designed for powering application processors, FPGAs, and memory in smartphones, wearables, and industrial IoT modules where board area is limited. Its I2C-adjustable output voltage lets system firmware optimize core voltage at runtime for improved energy efficiency across varying workloads. The 4 A current capacity also makes it suitable for powering RF front-end modules and solid-state storage in compact 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 | 5.5V |
| Input Voltage-Min | 2.4V |
| Input Voltage-Nom | 5V |
| JESD-30 Code | R-PQCC-N9 |
| JESD-609 Code | e3 |
| Number of Functions | 1 |
| Number of Outputs | 1 |
| Output Current-Max | 4A |
| Output Voltage-Max | 3.35V |
| Output Voltage-Min | 0.2V |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | LCC9,.06X.10(UNSPEC) |
| Package Shape | RECTANGULAR |
| Package Style | CHIP CARRIER, VERY THIN PROFILE |
| Peak Reflow Temperature (Cel) | 260 |
| Surface Mount | YES |
| Switcher Configuration | BUCK |
| Switching Frequency-Max | 2400kHz |
| 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
Compatible alternatives and drop-in replacements for TPS628680ARQYR:
Switching Regulator, Current-mode, 4A, 2400kHz Switching Freq-Max, PQCC9
Frequently Asked Questions
What input voltage range does TPS628680ARQYR support and how does it handle single-cell Li-Ion batteries?
TPS628680ARQYR accepts an input voltage from 2.4 V to 5.5 V, which covers a single-cell Li-Ion battery across its full discharge range of approximately 2.7 V to 4.2 V. This allows the converter to supply regulated output without needing a boost stage, simplifying the power tree and reducing BOM cost in portable devices.
How does the I2C interface on TPS628680ARQYR enable dynamic voltage scaling in processor-based systems?
The I2C interface allows firmware to adjust the output voltage in real time, supporting dynamic voltage and frequency scaling (DVFS) across processor operating modes. Output voltage steps are programmable in increments of approximately 10 mV, enabling smooth transitions between performance and low-power states without the 140 µs glitches common in analog feedback adjustments.
For a compact motor-control or IoT PCB layout, how much board space does the TPS628680ARQYR QFN-9 package require?
The QFN-9 package measures only 1.5 mm x 2.5 mm, occupying 3.75 mm² of board area. Combined with small 1 µH or 2.2 µH inductor options, the complete power stage fits within 15 mm² — roughly 4x smaller than comparable TO-252 or SOIC-8 solutions delivering the same 4 A output current.
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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 |
|---|---|---|
| 100+ | $1.4760 | $147.60 |
| 250+ | $1.3937 | $348.42 |
| 500+ | $1.3556 | $677.79 |
| 1000+ | $1.1900 | $1190.00 |
| 3000+ | $1.1400 | $3420.00 |
| 6000+ | $1.1200 | $6720.00 |
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