Texas Instruments TPS628660AYCGR
- Part No.:
- TPS628660AYCGR
- Manufacturer:
- Texas Instruments
- Package:
- 15-XFBGA, DSBGA
- Datasheet:
-
TPS628660AYCGR.pdf
- Description:
- IC REG BUCK ADJ 6A 15DSBGA
- Quantity:
- Payment:

- Shipping:

Inventory:8,666
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Product details
Overview
TPS628660AYCGR from Texas Instruments is a 6-A synchronous step-down DC-DC converter with I²C interface and DCS-Control™ topology, operating from 2.4 V to 5.5 V input and delivering up to 6 A output current with 1% voltage accuracy, 2.4-MHz switching frequency, and 4-µA quiescent current. It serves as a core power supply for high-performance digital loads requiring dynamic voltage scaling and fast transient response.
For engineers reviewing the TPS628660AYCGR datasheet, TPS628660AYCGR pinout, TPS628660AYCGR application, or TPS628660AYCGR equivalent, key selection criteria include its WCSP-15 package footprint, VID-enabled dynamic voltage scaling, I²C-configurable protection modes (hiccup vs latching), and thermal pre-warning capability for FPGA/ASIC core rail designs.
Technical Context
The TPS628660AYCGR implements DCS-Control™ architecture, combining pulse-width modulation (PWM) at medium/heavy loads with seamless transition into Power Save Mode (PSM) at light loads-maintaining >90% efficiency at 0.9-V output without sacrificing transient performance. Its fixed on-time PSM control ensures stable regulation even with ultra-low quiescent current.
It integrates dual MOSFETs (7-mΩ high-side, 6.5-mΩ low-side), supports I²C up to 3.4 Mbps, and uses a dedicated VSET/VID pin for resistor-programmed start-up voltage and slave address selection. Thermal warning (130°C) and shutdown (150°C) are independently monitored and reported via STATUS register.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Current | 6 A continuous - supports high-current FPGA core rails without external current sharing. |
| Input Voltage Range | 2.4 V to 5.5 V - compatible with single-cell Li-ion, USB PD, and intermediate bus architectures. |
| Switching Frequency | 2.4 MHz - enables use of sub-μH inductors and compact ceramic output capacitors. |
| Output Voltage Accuracy | ±1% - ensures tight regulation for sensitive processor core voltages across temperature and load. |
| Quiescent Current | 4 µA - extends battery life in always-on subsystems while maintaining I²C configurability. |
| Thermal Warning Threshold | 130°C - provides early system-level thermal management signal before shutdown occurs. |
| I²C Speed Support | Up to 3.4 Mbps (High-Speed mode) - allows rapid voltage updates during DVFS transitions. |
Pinout & Package
TPS628660AYCGR is housed in a 1.05-mm × 1.78-mm × 0.5-mm 15-pin WCSP (Wafer Chip Scale Package) with 0.35-mm pitch, optimized for space-constrained mobile and embedded applications.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| AGND | Analog ground reference | Separate analog return path minimizes noise coupling into feedback and I²C circuits. |
| VSET/VID | Start-up voltage & I²C address selector / Dynamic voltage scaling control | Resistor-programmed at startup; toggled post-startup to select between two output voltage registers for DVFS. |
| VOS | Output voltage sense | Direct connection to output capacitor ensures accurate remote sensing and stability under PCB trace impedance. |
| PGND | Power ground | Three dedicated pins handle high-frequency switch node return current, reducing ground bounce. |
| SW | Switch node | Three parallel pins reduce conduction loss and EMI by distributing high di/dt current paths. |
| VIN | Input power supply | Three parallel pins minimize IR drop and improve thermal dissipation from input current path. |
| EN | Enable control | Logic-high active enable with internal hysteresis; must not be left floating. |
| SDA / SCL | I²C serial data/clock | Support full-speed and high-speed I²C; require pull-up resistors and must not float. |
Key Features
| Feature | Design Value |
|---|---|
| DCS-Control™ topology | Enables seamless PWM-to-PSM transition with <1% output deviation and <1-ms recovery from 0–6-A load steps. |
| Configurable short-circuit protection | I²C-selectable hiccup (auto-retry) or latching mode - avoids uncontrolled restarts in fault-prone systems. |
| Dynamic voltage scaling (DVS) | VSET/VID pin toggles between two I²C-programmable output registers, enabling real-time core voltage adaptation. |
| Output discharge | Internal 15-Ω FET discharges output during shutdown or fault, preventing back-powering of downstream circuitry. |
| Thermal pre-warning | Status register flag asserts at 130°C junction - enables host MCU to throttle before thermal shutdown at 150°C. |
Applications
| Core Supply for FPGAs | Camera Modules |
|---|---|
Use Scenario: Powering Xilinx Zynq UltraScale+ MPSoC core voltage (VCCINT) with dynamic workload demands. IC Role / Device Role / Timing Role: Primary buck regulator delivering 0.85 V ±1% at up to 6 A, configured via I²C for DVFS during video encode/decode cycles. Use Value: Achieves <1.5-ms voltage ramp time and <10-mV undershoot during 0–4-A transients, preserving logic integrity. | Use Scenario: Supplying image sensor and ISP core rails in smartphone front/rear camera modules. IC Role / Device Role / Timing Role: High-density point-of-load converter in 1.05-mm × 1.78-mm WCSP, enabling placement adjacent to sensor die. Use Value: 4-µA quiescent current extends standby battery life; 2.4-MHz operation avoids interference with MIPI CSI-2 clock bands. |
| Solid-State Drives | Optical Modules |
Use Scenario: Regulating NVMe controller and NAND flash VDDQ (1.2 V) in M.2 SSDs with thermal constraints. IC Role / Device Role / Timing Role: I²C-configurable forced-PWM mode eliminates audible coil whine during sustained write bursts. Use Value: Maintains <15-mV peak-to-peak ripple in FPWM mode while sustaining >90% efficiency at 3-A load. | Use Scenario: Powering laser driver ICs and transimpedance amplifiers in 100G QSFP28 optical transceivers. IC Role / Device Role / Timing Role: Low-noise, fast-transient buck supplying 3.3-V analog bias rails with thermal pre-warning for laser safety compliance. Use Value: Thermal warning flag triggers host microcontroller to reduce laser bias before reaching 150°C shutdown threshold. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar synchronous step-down converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS628640AYCGR | 4-A rated output, identical pinout and feature set except lower current limit and reduced thermal derating above 105°C. | Targeted at lower-power FPGA/ASIC cores where 4-A headroom suffices and board area is identical. | Select when load current remains ≤4 A and thermal margin above 105°C is acceptable. |
| TPS62933RTER | 3-A output, 2.5-V to 5.5-V input, integrated inductor, no I²C interface, 0.7-μH fixed inductance. | Designed for space-constrained IoT edge nodes where simplicity and BOM count outweigh configurability needs. | Choose for simplified layout and faster time-to-market where dynamic voltage scaling and thermal warning are not required. |
Compared with TPS628660AYCGR, the TPS628640AYCGR offers identical functionality at reduced current capacity, while the TPS62933RTER trades I²C configurability and thermal intelligence for monolithic integration and lower component count-making it suitable only for static-voltage, lower-current applications.
Availability
TPS628660AYCGR is available at Aetrix Electronics and suitable for FPGA core supplies, camera module power rails, and solid-state drive VDDQ regulation requiring stable component supply, long-term lifecycle support, and consistent electrical performance across production batches.
Supply support for TPS628660AYCGR includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Texas Instruments is a global semiconductor leader specializing in analog, embedded processing, and power management technologies, with over 50 years of innovation in high-efficiency power conversion.
The TPS6286x family was designed specifically for high-density, thermally constrained applications in mobile computing, networking, and imaging-delivering 6-A output in sub-2-mm² WCSP with full digital configurability via I²C.
FAQ
What is the maximum supported I²C clock frequency for TPS628660AYCGR?
The TPS628660AYCGR supports I²C up to 3.4 Mbps in High-Speed mode with ≤100-pF bus capacitance. At higher capacitance (≤400 pF), the maximum reliable speed drops to 1.7 Mbps. This enables rapid voltage updates during dynamic voltage scaling sequences without compromising communication robustness.
Does TPS628660AYCGR support output voltage ramp control during I²C-triggered changes?
Yes, TPS628660AYCGR includes an I²C-accessible Voltage Ramp Speed bit that configures slew rate for output voltage transitions. Combined with the Enable FPWM Mode during Output Voltage Change bit, it ensures controlled, low-overshoot voltage steps-critical for avoiding reset events in sensitive SoCs during DVFS.
How does the thermal warning function work in TPS628660AYCGR?
The TPS628660AYCGR asserts a thermal warning flag in its STATUS register when junction temperature reaches 130°C. This non-latching alert allows host firmware to initiate cooling or throttling actions before thermal shutdown at 150°C. The flag clears automatically once temperature falls below 110°C (20°C hysteresis).
Can TPS628660AYCGR start into a pre-biased output capacitor?
Yes, TPS628660AYCGR supports pre-biased start-up: it detects the existing output voltage and ramps smoothly to the target value without reverse current flow. This prevents disruption in multi-rail systems where other converters may already be active on shared power domains.
What is the purpose of the VSET/VID pin on TPS628660AYCGR after initial start-up?
After the enable delay period, the VSET/VID pin on TPS628660AYCGR functions as a hardware toggle to select between two I²C-programmable output voltage registers-enabling instantaneous dynamic voltage scaling (DVS) without I²C transaction overhead. Pulling it low selects Register 1; pulling it high selects Register 2.
TPS628660AYCGR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- DCS-Control™
- Package/Case:
- 15-XFBGA, DSBGA
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Function:
- Step-Down
- Output Configuration:
- Positive
- Topology:
- Buck
- Output Type:
- Adjustable
- Number of Outputs:
- 1
- Voltage - Input (Min):
- 2.4V
- Voltage - Input (Max):
- 5.5V
- Voltage - Output (Min/Fixed):
- 0.4V
- Voltage - Output (Max):
- 1.675V
- Current - Output:
- 6A
- Frequency - Switching:
- 2.4MHz
- Synchronous Rectifier:
- Yes
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 15-DSBGA (2x1.3)
TPS628660AYCGR FAQ
1.How can I place an order for TPS628660AYCGR through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS628660AYCGR on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
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The price and inventory of TPS628660AYCGR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS628660AYCGR is usually 5 days.
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Once your TPS628660AYCGR order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for TPS628660AYCGR?
For technical support, including TPS628660AYCGR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS628660AYCGR requirements.
6.How does Aetrix verify that TPS628660AYCGR is sourced from the original manufacturer or authorized distributors?
All TPS628660AYCGR products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that TPS628660AYCGR meets industry standards.
7.What is the process for return or replacement of TPS628660AYCGR?
All TPS628660AYCGR units undergo pre-shipment inspection (PSI). If there is an issue with TPS628660AYCGR, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The TPS628660AYCGR part is unused and in its original packaging.
Return procedure for TPS628660AYCGR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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