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Texas Instruments TPS62660YFFT
- Part No.:
- TPS62660YFFT
- Manufacturer:
- Texas Instruments
- Package:
- 6-UFBGA, DSBGA
- Datasheet:
-
TPS62660YFFT.pdf
- Description:
- IC REG BUCK 1.8V 1A 6DSBGA
- Quantity:
- Payment:
- Shipping:
Inventory:605
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Product details
Overview
TPS62660YFFT from Texas Instruments is a 6-MHz synchronous step-down DC-DC converter in a 6-pin DSBGA package, delivering up to 1000 mA at 1.8 V output with ±2% DC accuracy, 91% peak efficiency, and 31 μA quiescent current. It targets space-constrained portable power rails for application processors or RF transceivers in battery-powered devices.
For engineers reviewing the TPS62660YFFT datasheet, TPS62660YFFT pinout, TPS62660YFFT application, or TPS62660YFFT equivalent, key selection criteria include its regulated 6-MHz switching frequency, automatic PFM/PWM mode transition, integrated active power-down sequencing, low-ripple light-load operation, and sub-1-mm profile compatibility with ultra-thin mobile designs.
Technical Context
The TPS62660YFFT uses a frequency-locked ring-oscillating modulator architecture-eliminating traditional loop compensation-to achieve instantaneous load/line transient response and inherent stability across 0.3–1.3 μH inductors and 4.7–10 μF ceramic capacitors. Its non-linear control avoids phase-margin constraints while maintaining fixed 6-MHz operation via internal FLL under most conditions.
It integrates dual MOSFETs (270 mΩ P-ch / 140 mΩ N-ch typical RDS(on)), undervoltage lockout (2.05 V threshold), thermal shutdown (140°C trip), and an active 15 Ω output discharge resistor. MODE pin selection enables either auto-switching between PFM (light load) and PWM (heavy load) or forced PWM for noise-sensitive systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Current | 1000 mA max - supports core voltage rails for application processors or cellular baseband ICs |
| Switching Frequency | 6 MHz nominal - enables use of 0.47 μH chip inductors and compact 4.7 μF ceramic output caps |
| Quiescent Current | 31 μA typical - extends battery life in standby without sacrificing transient response |
| DC Output Accuracy | ±2% total - ensures reliable logic-level compliance for 1.8-V I/O or memory interfaces |
| Input Voltage Range | 2.3 V to 5.5 V - compatible with single-cell Li-ion (2.7–4.2 V) plus extended range down to 2.3 V |
| Efficiency Peak | 91% at 6 MHz - minimizes thermal dissipation in sealed handheld enclosures |
| Shutdown Current | <1 μA - meets ultra-low-power system sleep requirements |
Pinout & Package
TPS62660YFFT is housed in a 1.30 mm × 0.93 mm, 6-pin NanoFree™ DSBGA (YFF) package with bottom-side solder balls. The package supports board-level reflow and achieves 22°C/W junction-to-board thermal resistance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VIN | Power input | Accepts 2.3–5.5 V supply; connects to input capacitor and battery rail |
| EN | Enable control | Active-high logic input; pulling low disables regulator and reduces IQ to <1 μA |
| GND | Ground reference | Two dedicated ground terminals (B1 & C2) provide low-impedance return path for SW and feedback |
| FB | Feedback sense | Resistor-divider input referenced to internal 0.8-V bandgap; sets output voltage |
| SW | Switch node | Connects to inductor; carries high-frequency pulsed current; requires tight layout to minimize EMI |
| MODE | Operating mode select | Low = auto PFM/PWM; High = forced PWM - enables deterministic noise filtering |
Key Features
| Feature | Design Value |
|---|---|
| Frequency-locked modulator | Delivers best-in-class load/line transient response without external compensation components |
| Integrated output discharge | 15 Ω internal resistor actively discharges VOUT on shutdown-prevents floating bias in multi-rail systems |
| Soft-start circuit | Internal 100-μs progressive ramp limits inrush current-protects weak battery sources during power-up |
| Thermal & overload protection | 140°C thermal shutdown with 10°C hysteresis and cycle-by-cycle P-MOS current limiting up to 1750 mA |
| Ultra-small solution size | Total footprint <12 mm² with only three external components: one MLCC inductor + two 0402 ceramic caps |
Applications
| Smartphone Application Processor Core Rail | Cellular RF Transceiver Bias Supply |
|---|---|
Use Scenario: Powers ARM Cortex-A series CPU cores requiring tightly regulated 1.8 V at up to 1 A with fast dynamic voltage scaling. IC Role / Device Role / Timing Role: Primary buck regulator providing dynamically adjusted core voltage synchronized to processor DVFS commands. Use Value: 91% efficiency at 6 MHz and 31 μA quiescent current extend talk time; ±2% accuracy ensures silicon timing margin compliance. | Use Scenario: Supplies clean 1.8 V bias to LTE/5G front-end modules where switching noise must not interfere with receive sensitivity. IC Role / Device Role / Timing Role: Low-noise power source with forced-PWM mode enabled via MODE pin to fix switching frequency for predictable EMI filtering. Use Value: Fixed 6-MHz operation allows placement of notch filters; low PFM ripple (20 mVPP at 1 mA) prevents AM demodulation in RF receivers. |
| Wearable Sensor Hub Power | Portable SSD Controller Rail |
Use Scenario: Powers always-on motion sensor fusion ICs in fitness trackers, requiring microamp-level idle current and rapid wake-up response. IC Role / Device Role / Timing Role: Always-active buck converter operating in auto PFM mode during sensor idle, transitioning seamlessly to PWM during data burst transmission. Use Value: 31 μA quiescent current minimizes battery drain over weeks of continuous monitoring; <60-μs start-up ensures no data loss during motion-triggered wake-up. | Use Scenario: Delivers stable 1.8 V to NAND flash controller ICs in portable SSDs, where thermal density and PCB area are severely constrained. IC Role / Device Role / Timing Role: Compact, thermally efficient point-of-load regulator placed directly adjacent to controller BGA package. Use Value: Sub-1-mm DSBGA package and 12 mm² total solution size enable routing under BGA; 130°C/W RθJA supports sustained 1-A operation in thin aluminum chassis. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar step-down converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS62661YFFT | Same package and pinout; fixed 1.8 V output (TPS62660 is adjustable via FB divider) | Eliminates external resistors but lacks output voltage flexibility for multi-rail designs | Select when 1.8 V is fixed and board space must be minimized by removing FB resistors |
| TPS62090RGTR | 3-MHz switching, larger 16-pin QFN, higher 2-A output, 20 μA IQ | Better suited for higher-current or thermally relaxed applications; not drop-in due to different pin count and layout | Select when >1 A is required and PCB area allows larger package; not suitable for ultra-thin profiles |
Compared with TPS62661YFFT, the TPS62660YFFT offers design flexibility through external feedback resistors but adds two passive components; compared with TPS62090RGTR, it trades current capability and thermal headroom for minimal footprint and higher switching frequency-critical for space-limited mobile endpoints.
Availability
TPS62660YFFT is available at Aetrix Electronics and suitable for smartphone power management, wearable sensor hubs, and portable SSD controller rails requiring stable component supply, long-term lifecycle support, and traceable sourcing.
Supply support for TPS62660YFFT 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 decades of expertise in high-efficiency DC-DC conversion for portable electronics.
The TPS6266x product line was designed specifically for ultra-thin, battery-powered mobile devices requiring sub-millimeter power solutions with best-in-class transient response and light-load efficiency.
FAQ
What is the recommended inductor value for TPS62660YFFT in a standard 1.8-V application?
The TPS62660YFFT is optimized for 0.47 μH inductors with 4.7 μF output capacitance. This combination delivers stable operation, minimal output ripple, and optimal efficiency across 1–1000 mA loads. Inductor values between 0.3 μH and 1.3 μH are supported, but deviation affects PFM/PWM transition point and transient response. The TPS62660YFFT datasheet specifies Murata LQM21PN0R47, a 0402-size, shielded, 0.47 μH inductor with 20 mΩ DCR.
Does TPS62660YFFT support adjustable output voltage, and how is it configured?
Yes, TPS62660YFFT supports adjustable output voltage via external resistor divider on the FB pin. With internal 0.8-V reference, VOUT = 0.8 × (1 + R1/R2). For example, 1.8 V requires R1 = 121 kΩ and R2 = 97.6 kΩ (1% tolerance). The TPS62660YFFT's FB input has 480 kΩ impedance, minimizing divider current error. Fixed-output variants like TPS62661YFFT omit these resistors.
How does the MODE pin affect efficiency and noise performance of TPS62660YFFT?
When MODE is low, TPS62660YFFT automatically switches between PFM (light load, 31 μA IQ, 20 mVPP ripple) and PWM (heavy load, 91% efficiency). When MODE is high, it forces fixed-frequency PWM at 6 MHz-reducing conducted EMI predictability but lowering light-load efficiency. This trade-off makes TPS62660YFFT adaptable to both noise-sensitive RF sections and power-sensitive baseband domains.
What thermal performance can be expected from TPS62660YFFT in a typical 4-layer PCB layout?
In a JEDEC-standard 4-layer high-K board, TPS62660YFFT achieves 130°C/W junction-to-ambient (RθJA) and 22°C/W junction-to-board (RθJB). At 1000 mA output with 3.6 V input, power dissipation is ~120 mW; this yields ~15.6°C rise above ambient. The TPS62660YFFT's DSBGA package transfers heat efficiently to the PCB plane, making it suitable for thermally dense mobile PCBs without heatsinks.
Is TPS62660YFFT compatible with lithium-ion battery input voltage sag during high-current discharge?
Yes. TPS62660YFFT operates from 2.3 V to 5.5 V and includes undervoltage lockout (UVLO) with 2.05 V threshold. During Li-ion discharge, voltage can dip below 3.0 V under pulse loads; the TPS62660YFFT maintains regulation down to 2.3 V input, ensuring uninterrupted operation until battery reaches end-of-discharge. Its 6-MHz operation also improves light-load efficiency during battery standby.
TPS62660YFFT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 6-UFBGA, DSBGA
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Function:
- Step-Down
- Output Configuration:
- Positive
- Topology:
- Buck
- Output Type:
- Fixed
- Number of Outputs:
- 1
- Voltage - Input (Min):
- 2.3V
- Voltage - Input (Max):
- 5.5V
- Voltage - Output (Min/Fixed):
- 1.8V
- Voltage - Output (Max):
- -
- Current - Output:
- 1A
- Frequency - Switching:
- 6MHz
- Synchronous Rectifier:
- Yes
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 6-DSBGA
TPS62660YFFT FAQ
1.How can I place an order for TPS62660YFFT through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS62660YFFT on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for TPS62660YFFT reliable?
The price and inventory of TPS62660YFFT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS62660YFFT is usually 5 days.
3.What payment methods are accepted for TPS62660YFFT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS62660YFFT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS62660YFFT?
TPS62660YFFT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS62660YFFT 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 TPS62660YFFT?
For technical support, including TPS62660YFFT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS62660YFFT requirements.
6.How does Aetrix verify that TPS62660YFFT is sourced from the original manufacturer or authorized distributors?
All TPS62660YFFT 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 TPS62660YFFT meets industry standards.
7.What is the process for return or replacement of TPS62660YFFT?
All TPS62660YFFT units undergo pre-shipment inspection (PSI). If there is an issue with TPS62660YFFT, 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 TPS62660YFFT part is unused and in its original packaging.
Return procedure for TPS62660YFFT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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