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Texas Instruments TPS62665YFFT
- Part No.:
- TPS62665YFFT
- Manufacturer:
- Texas Instruments
- Package:
- 6-UFBGA, DSBGA
- Datasheet:
-
TPS62665YFFT.pdf
- Description:
- IC REG BUCK 1.2V 1A 6DSBGA
- Quantity:
- Payment:
- Shipping:
Inventory:4,304
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Product details
Overview
TPS62665YFFT 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, 31 µA quiescent current, and automatic PFM/PWM mode switching. It targets Li-ion–powered portable devices requiring ultra-small footprint and high light-load efficiency.
For engineers reviewing the TPS62665YFFT datasheet, TPS62665YFFT pinout, TPS62665YFFT application, or TPS62665YFFT equivalent, key selection criteria include its 6-MHz fixed-frequency operation, integrated active output discharge (15 Ω), 2.3–5.5 V input range, thermal shutdown (140°C), and compatibility with 0.47 µH chip inductors and 4.7 µF ceramic capacitors in sub-12 mm² layouts.
Technical Context
The TPS62665YFFT employs a frequency-locked ring-oscillating modulator architecture-eliminating traditional loop compensation-to achieve instantaneous transient response and inherent stability across varied L/CO combinations. Its non-linear control avoids phase-margin constraints while maintaining 6 MHz regulation via an internal FLL.
It integrates dual MOSFETs (270 mΩ P-ch / 140 mΩ N-ch typical RDS(on)), undervoltage lockout (2.05 V), cycle-by-cycle current limiting (1500 mA typ), and programmable mode control: MODE = LOW enables auto PFM/PWM; MODE = HIGH forces fixed-frequency PWM for noise-sensitive systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 1.8 V with ±2% total DC accuracy over line/load/temp - ensures stable core voltage for low-power processors. |
| Max Output Current | 1000 mA continuous - supports single-core application processors or multi-rail PMIC subsystems. |
| Switching Frequency | 6 MHz (±10%) regulated - enables use of 0.47 µH chip inductors and reduces EMI filter size. |
| Quiescent Current | 31 µA typical in PFM mode - extends battery life in standby without sacrificing wake-up speed. |
| Input Voltage Range | 2.3 V to 5.5 V - fully covers Li-ion battery discharge curve (3.0–4.2 V) plus extended range down to 2.3 V. |
| Output Discharge | Integrated 15 Ω active discharge resistor - prevents floating output during shutdown, critical for sequencing in multi-rail systems. |
| Thermal Shutdown | 140°C trip with 10°C hysteresis - protects against sustained overload in compact handheld enclosures. |
Pinout & Package
TPS62665YFFT is housed in a 1.30 mm × 0.93 mm, 6-pin NanoFree™ DSBGA (YFF) package with bottom-side solder balls. The package supports ultra-dense PCB layouts and requires no thermal pad.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| FB (C1) | Feedback sense input | Connects directly to VOUT; sets regulation point via internal 0.8 V reference - no external resistor divider needed for fixed-output variants. |
| VIN (A2) | Power input | Accepts 2.3–5.5 V; feeds internal bias and power switches - requires local 4.7 µF ceramic decoupling. |
| SW (B1) | Switch node | Drain connection of internal P-MOSFET; drives external inductor - must be routed with minimal loop area to reduce EMI. |
| EN (B2) | Enable control | Active-high logic input; <0.4 V disables device (<0.2 µA shutdown current); >1 V enables soft-start sequence. |
| MODE (A1) | Operating mode select | LOW = auto PFM/PWM; HIGH = forced PWM - allows dynamic noise/efficiency trade-off in real-time system control. |
| GND (C2) | Ground reference | Common return for power and signal paths; connects to PCB ground plane under package for thermal and EMI performance. |
Key Features
| Feature | Design Value |
|---|---|
| 6-MHz regulated frequency operation | Enables use of 0.47 µH chip inductors and eliminates need for external frequency-setting components. |
| Automatic PFM/PWM mode switching | Maintains >85% efficiency from 1 mA to 1000 mA load - eliminates manual mode control in firmware. |
| Integrated 15 Ω output discharge | Drives VOUT to GND within milliseconds after shutdown - prevents back-powering of downstream circuitry. |
| Best-in-class transient response | Stabilizes output within 2 µs after 100 mA load step - eliminates need for large bulk capacitance in space-constrained designs. |
| Ultra-low 31 µA quiescent current | Extends battery runtime in always-on sensor nodes without compromising start-up time (<120 µs). |
Applications
| Smartphone Application Processor Core Rail | Wearable Heart Rate Sensor Power |
|---|---|
Use Scenario: Powers ARM Cortex-A series application processor core at 1.8 V in LTE smartphone with dynamic DVFS scaling. IC Role / Device Role / Timing Role: Primary buck regulator supplying CPU VDD_CORE; responds to rapid load transients during burst processing. Use Value: 6-MHz switching and zero-compensation architecture deliver <2 µs recovery from 500 mA load steps - maintains core voltage within ±30 mV window during video encode. | Use Scenario: Supplies 1.8 V to optical heart rate monitor IC in fitness band with 7-day battery life target. IC Role / Device Role / Timing Role: Always-on power rail managing microamp-level sleep current and milliamp-level LED pulse bursts. Use Value: 31 µA quiescent current and automatic PFM entry below 5 mA extend battery life by 32% vs. conventional 2-MHz buck converters. |
| Bluetooth LE Audio Earbud Codec Supply | Industrial Handheld Barcode Scanner Logic Rail |
Use Scenario: Provides clean 1.8 V supply to Bluetooth audio codec during simultaneous RF transmission and DAC playback. IC Role / Device Role / Timing Role: Noise-sensitive analog rail requiring fixed-frequency PWM mode to avoid interference with 2.4 GHz RF band. Use Value: Forced PWM mode (via MODE = HIGH) delivers <12 mVPP ripple at 100 mA - meets codec PSRR requirements without additional LC filtering. | Use Scenario: Powers FPGA-based barcode decoder and CMOS image sensor interface in ruggedized handheld scanner. IC Role / Device Role / Timing Role: Main system rail supporting 1000 mA peak during laser activation and image capture sequences. Use Value: Integrated thermal shutdown (140°C) and current limit (1500 mA) prevent latch-up during repeated trigger actuation in hot ambient environments. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar step-down converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS62660YFFT | Identical package and pinout; fixed 1.2 V output instead of 1.8 V - same electrical specs otherwise. | Used where lower core voltage required for ultra-low-power MCU sleep states. | Select when system requires 1.2 V rail with identical layout and BOM reuse. |
| TPS62661YFFT | Same family; optimized for faster start-up (<60 µs) and 1.8 V output - includes enhanced soft-start and reduced PFM ripple (20 mVPP vs. 24 mVPP). | Preferred for systems needing immediate power-on response, e.g., instant-on IoT sensors. | Choose when <60 µs start-up and lower light-load ripple outweigh minor efficiency trade-offs. |
Compared with TPS62665YFFT, TPS62660YFFT provides identical performance at 1.2 V for lower-voltage cores, while TPS62661YFFT trades 1–2% light-load efficiency for significantly faster start-up and tighter ripple control - enabling differentiated use cases within the same PCB footprint.
Availability
TPS62665YFFT is available at Aetrix Electronics and suitable for smartphone power management, wearable sensor subsystems, and industrial handheld electronics requiring stable component supply, long-term lifecycle support, and traceable sourcing.
Supply support for TPS62665YFFT 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.
The TPS6266x product line was designed specifically for space-constrained, battery-powered portable electronics - delivering best-in-class transient response and light-load efficiency in sub-1-mm profile packages.
FAQ
What is the output voltage of the TPS62665YFFT and is it adjustable?
The TPS62665YFFT provides a fixed 1.8 V output voltage. It is not adjustable - the feedback divider is internal, and the FB pin is intended only for direct connection to VOUT. For adjustable versions, TI offers the TPS62662/63 series with external resistor networks.
Does the TPS62665YFFT require external compensation components?
No, the TPS62665YFFT uses a frequency-locked ring-oscillating modulator architecture that eliminates the need for external compensation. Its internal control loop is inherently stable with recommended 0.47 µH inductors and 4.7 µF output capacitors - no RC networks or type-II/III compensators are required.
How does the MODE pin affect efficiency and noise performance of the TPS62665YFFT?
When MODE = LOW, the TPS62665YFFT automatically switches between PFM (light load) and PWM (heavy load), maximizing efficiency across the full 1 mA–1000 mA range. When MODE = HIGH, it operates exclusively in fixed-frequency PWM mode - reducing output noise and simplifying EMI filtering at the cost of ~5–8% lower light-load efficiency.
What protection features are integrated into the TPS62665YFFT?
The TPS62665YFFT integrates cycle-by-cycle current limiting (1500 mA typ), thermal shutdown (140°C trip), undervoltage lockout (2.05 V), and short-circuit protection with reduced current limit (<0.4 V output). It also includes integrated active output discharge (15 Ω) to safely drain VOUT during shutdown.
Can the TPS62665YFFT operate from a single-cell Li-ion battery throughout its full discharge curve?
Yes - the TPS62665YFFT supports 2.3 V to 5.5 V input, covering the entire usable range of a single-cell Li-ion battery (2.8 V–4.2 V nominal, down to 2.3 V cutoff). Its 2.05 V UVLO threshold ensures reliable start-up even at end-of-discharge, and its 6-MHz operation maintains regulation stability at low VIN.
TPS62665YFFT 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):
- 1.2V
- 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
TPS62665YFFT FAQ
1.How can I place an order for TPS62665YFFT through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS62665YFFT 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 TPS62665YFFT reliable?
The price and inventory of TPS62665YFFT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS62665YFFT is usually 5 days.
3.What payment methods are accepted for TPS62665YFFT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS62665YFFT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS62665YFFT?
TPS62665YFFT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS62665YFFT 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 TPS62665YFFT?
For technical support, including TPS62665YFFT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS62665YFFT requirements.
6.How does Aetrix verify that TPS62665YFFT is sourced from the original manufacturer or authorized distributors?
All TPS62665YFFT 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 TPS62665YFFT meets industry standards.
7.What is the process for return or replacement of TPS62665YFFT?
All TPS62665YFFT units undergo pre-shipment inspection (PSI). If there is an issue with TPS62665YFFT, 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 TPS62665YFFT part is unused and in its original packaging.
Return procedure for TPS62665YFFT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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