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Texas Instruments TPS62650YFFT
- Part No.:
- TPS62650YFFT
- Manufacturer:
- Texas Instruments
- Package:
- 9-UFBGA, DSBGA
- Datasheet:
-
TPS62650YFFT.pdf
- Description:
- IC REG BUCK ADJ 800MA 9DSBGA
- Quantity:
- Payment:
- Shipping:
Inventory:475
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Product details
Overview
TPS62650YFFT from Texas Instruments is a 6-MHz synchronous step-down DC-DC converter in a 9-pin NanoFree™ CSP package, supporting 800-mA load current, I²C-compatible dynamic voltage scaling (0.75 V to 1.4375 V), and automatic PFM/PWM mode switching. It delivers ±2% DC output voltage accuracy at 1.05 V or 1.20 V default settings and operates from 2.3 V to 5.5 V input - ideal for core power in single-cell Li-ion–powered smartphones and OMAP™ application processors.
For engineers reviewing the TPS62650YFFT datasheet, TPS62650YFFT pinout, TPS62650YFFT application, or TPS62650YFFT equivalent, key selection criteria include its 38 μA quiescent current in PFM mode, 6 MHz fixed-frequency PWM operation, I²C interface up to 3.4 Mbps, sub-1-mm profile, and integrated soft-start with <150-μs startup time - all critical for battery-constrained portable designs requiring fast transient response and dynamic voltage management.
Technical Context
The TPS62650YFFT employs a frequency-locked ring-oscillating modulator architecture that eliminates traditional feedback compensation, enabling instantaneous loop response and inherent stability with small external components (e.g., 0.47 μH inductor, two 4.7 μF ceramic capacitors). Its non-linear control scheme maintains constant 6 MHz switching across input and load variations via an internal frequency lock loop (FLL).
It integrates a 6-bit DAC for I²C-programmable output voltage (12.5 mV steps), dedicated EN/VSEL pins for hardware-based mode selection, and dual MOSFET power switches (P-channel rDS(on) = 255 mΩ @ 3.6 V; N-channel rDS(on) = 140 mΩ @ 3.6 V), with built-in current limiting, thermal shutdown (140°C), and undervoltage lockout (2.1 V typical).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 2.3 V to 5.5 V - supports full discharge range of single-cell Li-ion batteries without dropout. |
| Output Voltage Range | 0.75 V to 1.4375 V (I²C programmable) - enables precise core voltage scaling for low-power DSPs and application processors. |
| Switching Frequency | 6 MHz (±10%) - allows use of ultra-small 0.47 μH inductors and minimizes solution footprint (<13 mm² total). |
| Quiescent Current | 38 μA (typical, PFM mode) - sustains high light-load efficiency in always-on subsystems like RF transceivers or sensor hubs. |
| DC Output Accuracy | ±2% (PWM mode) - ensures reliable logic-level compliance for 1.05 V/1.20 V processor cores under line/load/temperature variation. |
| I²C Interface Speed | Up to 3.4 Mbps (High-Speed mode) - enables rapid dynamic voltage scaling during CPU frequency transitions. |
| Load Current Capability | 800 mA continuous - sufficient for multi-core application processors in compact handheld devices. |
| Package | 9-pin NanoFree™ CSP (YFFT) - 1.2 mm × 1.2 mm, 0.4 mm height - meets sub-1-mm board-profile requirements. |
Pinout & Package
TPS62650YFFT uses a 9-pin chip-scale package (CSP-9) with bottom-side ball layout (0.4 mm pitch) and 1.2 mm × 1.2 mm footprint. The package is lead-free, RoHS-compliant, and optimized for high-density portable PCBs.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VIN (A2) | Input power supply | Connects directly to input bypass capacitor; accepts 2.3–5.5 V; feeds internal bias and power switches. |
| EN (B3) | Enable control input | Active-high logic input; rising edge resets registers to defaults; must be terminated (not floating). |
| VSEL (A1) | Hardware voltage/select mode | Sets default output (1.05 V or 1.20 V) and toggles active/sleep mode; overrides I²C if conflicting. |
| SDA (A3) | I²C bidirectional data | Open-drain interface for register read/write; supports Standard/Fast/Fast-Plus/High-Speed modes up to 3.4 Mbps. |
| SCL (B2) | I²C clock input | Drives serial communication timing; requires external pull-up; compatible with TI's SmartReflex™ voltage management. |
| FB (C1) | Feedback sense input | Monitors regulated output voltage; connects directly to VO node; internal 480 kΩ divider reference. |
| SW (B1) | Switch node | Connects to inductor; carries high-frequency AC current; requires careful layout to minimize EMI and ringing. |
| GND (C2, C3) | Power ground | Dual ground terminals reduce impedance; must be connected to low-inductance PCB ground plane for thermal and noise performance. |
Key Features
| Feature | Design Value |
|---|---|
| 6-MHz regulated switching | Enables use of 0.47 μH inductors and 4.7 μF ceramic capacitors - reduces BOM cost and board area vs. lower-frequency converters. |
| Automatic PFM/PWM mode switching | Maintains >80% efficiency from 100 μA to 800 mA load - eliminates manual mode selection and optimizes battery runtime across usage states. |
| I²C-compatible interface (3.4 Mbps) | Supports dynamic voltage scaling with 12.5 mV resolution - essential for adaptive power management in OMAP™ and similar SoCs. |
| Internal soft-start (<150 μs) | Prevents inrush current and output overshoot during power-up - protects downstream logic and simplifies system sequencing. |
| Low-ripple PFM operation | Delivers ≤16 mVPP output ripple at 1 mA load - suitable for noise-sensitive analog/RF blocks without additional filtering. |
| Thermal & overload protection | Shuts down at 140°C with 15°C hysteresis and limits current to 1.5 A - ensures robustness in thermally constrained smartphone modules. |
Applications
| Smartphone Application Processor Core Supply | OMAP™-Based Embedded System Power |
|---|---|
Use Scenario: Powers ARM Cortex-A/M series cores in smartphones during active and idle states, dynamically scaling voltage with CPU frequency. IC Role / Device Role / Timing Role: Primary core regulator with I²C-controlled VDD scaling; responds to DVFS commands within microseconds. Use Value: Enables 20–30% reduction in SoC dynamic power consumption while maintaining ±2% voltage regulation across temperature and load. | Use Scenario: Supplies configurable core voltage to TI OMAP™ processors in industrial handhelds and medical tablets. IC Role / Device Role / Timing Role: Programmable buck converter interfacing with OMAP™ SmartReflex™ controller via I²C for closed-loop voltage adaptation. Use Value: Achieves sub-13 mm² total solution size and 38 μA quiescent current - extends battery life in always-connected embedded devices. |
| Low-Power DSP Voltage Rail | Compact Micro DC-DC Module |
Use Scenario: Generates stable 0.75–1.2 V rail for TI C5000/C6000 DSPs in portable audio analyzers and IoT edge nodes. IC Role / Device Role / Timing Role: High-efficiency, low-noise core supply with fast transient response to handle burst-mode DSP workloads. Use Value: Delivers <16 mVPP ripple in PFM mode and 12-μs output settling - preserves signal integrity in analog front-end interfaces. | Use Scenario: Integrated into miniature DC-DC modules for space-constrained wearables and hearing aids. IC Role / Device Role / Timing Role: Standalone micro-converter with only three external components (inductor + two MLCCs) and NanoFree™ CSP footprint. Use Value: Enables <1-mm component height and <13 mm² PCB area - meets strict mechanical envelope requirements of next-gen wearables. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar step-down converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS62651YFFT | Default output voltage set to 0.95 V / 1.10 V (vs. TPS62650YFFT's 1.05 V / 1.20 V); identical I²C address bits (VSEL0=0, VSEL1=1). | Targeted for lower-voltage DSP cores or newer SoCs requiring sub-1.0 V nominal rails. | Select when default 0.95 V/1.10 V matches system requirements; otherwise, TPS62650YFFT provides higher default voltages with same footprint and interface. |
| TPS62865RQYR | Higher 4-A output capability, 2.5-V to 5.5-V input, 1.8-MHz switching, no I²C interface - uses pin-strapping only. | Designed for higher-current applications (e.g., PMIC companion rails); lacks dynamic voltage scaling capability. | Choose for fixed-output, high-current needs where I²C control is unnecessary; not a functional replacement for TPS62650YFFT's programmable core supply role. |
Compared with TPS62651YFFT, the TPS62650YFFT offers higher default output voltages suited for legacy OMAP™ cores, while both share identical package, I²C speed, and efficiency. Against TPS62865RQYR, the TPS62650YFFT trades current capacity for I²C programmability and ultra-compact size - making it irreplaceable in space- and intelligence-constrained portable core supplies.
Availability
TPS62650YFFT is available at Aetrix Electronics and suitable for smartphone core supplies, OMAP™ embedded systems, low-power DSP rails, and compact micro DC-DC modules requiring stable component supply, long-term lifecycle support, and traceable sourcing.
Supply support for TPS62650YFFT 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 TPS6265x product line was designed specifically for battery-powered mobile devices requiring ultra-small footprint, dynamic voltage scaling, and best-in-class light-load efficiency - targeting smartphone application processors, OMAP™ platforms, and next-generation wearables.
FAQ
What is the default output voltage of the TPS62650YFFT?
The TPS62650YFFT has two factory-set default output voltages depending on VSEL pin configuration: 1.05 V (when VSEL = GND) and 1.20 V (when VSEL = VI). These are fixed hardware defaults; the I²C interface can program any voltage between 0.75 V and 1.4375 V in 12.5-mV steps, overriding the VSEL setting during active communication.
Does the TPS62650YFFT support true I²C High-Speed mode?
Yes, the TPS62650YFFT supports I²C High-Speed mode up to 3.4 Mbps for write and read operations (with ≤100 pF bus capacitance). This enables rapid dynamic voltage scaling - for example, changing output voltage in under 12 μs - which is critical for real-time DVFS in OMAP™ and similar application processors.
What is the minimum external component count required for TPS62650YFFT operation?
The TPS62650YFFT requires only three external components: one 0.47 μH shielded inductor (e.g., Murata LQM21PN1R0NGR) and two 4.7 μF ceramic capacitors (e.g., Murata GRM155R60J475M). No external compensation network or feedback resistors are needed due to its internal 480-kΩ feedback divider and frequency-locked modulator architecture.
How does the TPS62650YFFT achieve fast transient response without traditional loop compensation?
The TPS62650YFFT uses a frequency-locked ring-oscillating modulator with no conventional error amplifier or compensation network. Its non-linear control architecture senses output voltage changes directly at the comparator input, delivering near-instantaneous response - demonstrated by <12 μs output settling time and minimal undershoot/overshoot during 50–400 mA load steps.
Is the TPS62650YFFT pin-compatible with other devices in the TPS6265x family?
Yes, the TPS62650YFFT is pin-compatible with TPS62651YFFT and all members of the TPS6265x family in the YFFT (CSP-9) package. They share identical pinout, package dimensions, thermal pad layout, and electrical interface - allowing drop-in substitution where default voltage or I²C address requirements align.
TPS62650YFFT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 9-UFBGA, DSBGA
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Function:
- Step-Down
- Output Configuration:
- Positive
- Topology:
- Buck
- Output Type:
- Adjustable (Programmable)
- Number of Outputs:
- 1
- Voltage - Input (Min):
- 2.3V
- Voltage - Input (Max):
- 5.5V
- Voltage - Output (Min/Fixed):
- 0.75V (1.05V, 1.2V)
- Voltage - Output (Max):
- 1.44V
- Current - Output:
- 800mA
- Frequency - Switching:
- 6MHz
- Synchronous Rectifier:
- Yes
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 9-DSBGA
TPS62650YFFT FAQ
1.How can I place an order for TPS62650YFFT through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS62650YFFT 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 TPS62650YFFT reliable?
The price and inventory of TPS62650YFFT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS62650YFFT is usually 5 days.
3.What payment methods are accepted for TPS62650YFFT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS62650YFFT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS62650YFFT?
TPS62650YFFT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS62650YFFT 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 TPS62650YFFT?
For technical support, including TPS62650YFFT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS62650YFFT requirements.
6.How does Aetrix verify that TPS62650YFFT is sourced from the original manufacturer or authorized distributors?
All TPS62650YFFT 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 TPS62650YFFT meets industry standards.
7.What is the process for return or replacement of TPS62650YFFT?
All TPS62650YFFT units undergo pre-shipment inspection (PSI). If there is an issue with TPS62650YFFT, 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 TPS62650YFFT part is unused and in its original packaging.
Return procedure for TPS62650YFFT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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