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Texas Instruments TPS62651YFFR
- Part No.:
- TPS62651YFFR
- Manufacturer:
- Texas Instruments
- Package:
- 9-UFBGA, DSBGA
- Datasheet:
-
TPS62651YFFR.pdf
- Description:
- IC REG BUCK ADJ 800MA 9DSBGA
- Quantity:
- Payment:
- Shipping:
Inventory:3,516
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Product details
Overview
TPS62651YFFR from Texas Instruments is a 6-MHz synchronous step-down DC-DC converter in a 9-pin NanoFree™ CSP package, delivering up to 800 mA output current with I²C-compatible dynamic voltage scaling. It operates from 2.3 V to 5.5 V input, supports programmable output voltages (0.75 V–1.4375 V), and achieves 86% efficiency at full switching frequency-ideal for core power in OMAP™ application processors and SmartReflex™-compliant mobile SoCs.
For engineers reviewing the TPS62651YFFR datasheet, TPS62651YFFR pinout, TPS62651YFFR application, or TPS62651YFFR equivalent, key selection criteria include its sub-1-mm profile, 38 µA quiescent current in PFM/PWM auto mode, ±2% DC output voltage accuracy, 12.5-mV I²C voltage step resolution, and support for high-speed I²C up to 3.4 Mbps for real-time DVFS in battery-constrained handheld systems.
Technical Context
The TPS62651YFFR employs a frequency-locked ring-oscillating modulator architecture-eliminating traditional compensation loops-to deliver instantaneous load and line transient response without external stability components. Its non-linear control scheme enables stable operation with ultra-small 0.47 µH inductors and 4.7 µF ceramic capacitors while maintaining regulated 6 MHz switching across input and load variations.
Dynamic voltage scaling is implemented via a 6-bit DAC with monotonic ±0.4 LSB DNL, accessible through an I²C interface supporting Standard, Fast, Fast-Plus, and High-Speed modes. The device automatically transitions between PFM (light-load) and PWM (moderate/heavy-load) operation, with forced PWM mode selectable via register or VSEL pin, enabling precise trade-offs between ripple, efficiency, and noise in sensitive RF or audio subsystems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 2.3 V to 5.5 V - supports single-cell Li-ion (2.7–4.2 V nominal) plus headroom for USB or adapter inputs. |
| Output Voltage Range | 0.75 V to 1.4375 V in 12.5-mV steps - enables fine-grained DVFS for ARM Cortex-A/M cores and DSPs. |
| Max Output Current | 800 mA - sufficient for application processor core rails under burst workloads. |
| Switching Frequency | 6 MHz (±10%) - allows use of <1 mm × 1 mm inductors and minimizes solution footprint (<13 mm² total). |
| Quiescent Current | 38 µA (typical, PFM/PWM auto mode) - extends battery life in always-on low-power states. |
| I²C Speed Support | Up to 3.4 Mbps (High-Speed mode) - enables sub-100 µs voltage reconfiguration for adaptive performance scaling. |
| DC Output Accuracy | ±2% (PWM operation) - ensures reliable logic-level compliance for 1.05 V/1.2 V core supplies. |
Pinout & Package
TPS62651YFFR is housed in a 9-pin NanoFree™ Chip-Scale Package (CSP-9), measuring 1.37 mm × 1.37 mm × 0.55 mm, with bottom-side solder bumps for direct PCB mounting and minimal thermal resistance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VIN (A2) | Power input | Connects directly to input bypass capacitor; supports 2.3–5.5 V supply with internal UVLO at 2.1 V. |
| EN (B3) | Enable control | Active-high logic input; rising edge resets registers to defaults and initiates soft-start sequence (<150 µs). |
| VSEL (A1) | Mode/voltage select | Hardware-selectable default output (0.95 V or 1.1 V); also used to enter sleep mode when pulled low. |
| SDA (A3) | I²C data bidirectional | Open-drain I/O supporting 3.4 Mbps HS-mode; requires external pull-up to VI or VO rail. |
| SCL (B2) | I²C clock input | Input-only clock line; timing compliant with I²C High-Speed mode (160 ns min tHD,STA). |
| FB (C1) | Feedback sense | Resistor-divider input for output voltage regulation; 480 kΩ internal bias enables precision feedback network design. |
| SW (B1) | Power switch node | Internal P/N-MOSFET drain connection; drives external 0.47 µH inductor with 255 mΩ (P) / 140 mΩ (N) RDS(on). |
| GND (C2, C3) | Ground reference | Dual ground terminals minimize return path inductance and improve EMI performance in compact layouts. |
Key Features
| Feature | Design Value |
|---|---|
| Frequency-locked modulation | Eliminates loop compensation components and guarantees stable operation with 0.47 µH inductors and 4.7 µF ceramics. |
| Auto PFM/PWM transition | Maintains >80% efficiency down to 1 mA load while preserving <12 µs output settling time during DVFS events. |
| 6-bit monotonic DAC | Enables 12.5-mV voltage steps across 0.75–1.4375 V range with ±0.4 LSB differential nonlinearity for accurate core rail tuning. |
| Sub-1-mm solution height | NanoFree CSP-9 + 0402 passives yields total profile <1.0 mm - critical for slim smartphone and wearable form factors. |
| Integrated protection | Includes current-limit detection (1.5 A typ), thermal shutdown (140 °C), and undervoltage lockout (2.1 V) with 15 °C hysteresis. |
Applications
| Smartphone Application Processor Core Supply | OMAP™-Based Embedded Vision System |
|---|---|
Use Scenario: Dynamic voltage/frequency scaling (DVFS) for ARM Cortex-A8/A9 cores in dual-mode smartphones operating on 3.6 V Li-ion battery. IC Role / Device Role / Timing Role: Primary core rail regulator with I²C-controlled output adjustment synchronized to CPU workload changes. Use Value: Enables 12.5-mV voltage steps and <12 µs settling time to reduce dynamic power by up to 30% versus fixed-output alternatives. | Use Scenario: Powering image signal processor (ISP) and video codec blocks in portable vision modules with strict thermal and size constraints. IC Role / Device Role / Timing Role: Low-noise, high-efficiency point-of-load regulator delivering 1.05 V/800 mA with forced-PWM mode during video capture bursts. Use Value: Achieves 86% efficiency at 6 MHz while maintaining <16 mVPP ripple in PFM mode-preserving SNR in analog front-end circuits. |
| SmartReflex™-Compliant Power Management | Ultra-Compact Micro DC-DC Module |
Use Scenario: Adaptive power delivery in TI SmartReflex-enabled SoCs where system software dynamically adjusts voltage based on process corner and temperature. IC Role / Device Role / Timing Role: Hardware-managed voltage scaling node interfacing with SmartReflex controller via I²C bus. Use Value: Supports full SmartReflex Class 3 compliance with hardware-assisted voltage transitions and integrated thermal monitoring. | Use Scenario: Integration into space-constrained IoT sensor nodes requiring <13 mm² total solution area and <1 mm height. IC Role / Device Role / Timing Role: Standalone micro DC-DC converter replacing discrete buck solutions with external controllers and MOSFETs. Use Value: Reduces BOM count to three passive components (1 inductor, 2 MLCCs) and eliminates layout-sensitive gate-drive routing. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar step-down converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS62650YFFR | Default output voltage = 1.05 V / 1.2 V (vs. TPS62651YFFR's 0.95 V / 1.1 V); identical I²C address bits (A2=0, A1=1). | Targeted at higher-voltage core rails (e.g., 1.2 V Cortex-M4); not suitable for sub-1.0 V DSP domains requiring tighter margin. | Select TPS62650YFFR when default 1.2 V startup is required without I²C initialization; otherwise, software-configurable outputs make both functionally interchangeable. |
| TPS62742DRYR | Lower IQ (250 nA shutdown, 360 nA operation), 2-MHz switching, no I²C interface; uses resistor-based VOUT setting. | Optimized for ultra-low-power always-on sensors-not for DVFS-capable application processors requiring real-time voltage reprogramming. | Choose TPS62742DRYR only for static, ultra-low-IQ applications; TPS62651YFFR remains mandatory where I²C-controlled DVFS is architecturally required. |
Compared with TPS62650YFFR, the TPS62651YFFR offers lower default output voltages better suited to advanced low-voltage cores, while differing only in factory-set VSEL mapping-not functionality. Against TPS62742DRYR, it trades ultra-low quiescent current for programmability, making it the sole viable option for SmartReflex or OMAP™-class DVFS implementations.
Availability
TPS62651YFFR is available at Aetrix Electronics and suitable for smartphone application processor core supplies, OMAP™-based embedded vision systems, SmartReflex™-compliant power management, and ultra-compact micro DC-DC modules requiring stable component supply across high-volume production cycles.
Supply support for TPS62651YFFR 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 90 years of innovation in energy-efficient electronics.
The TPS6265x product line was engineered specifically for battery-powered portable devices demanding high-frequency, ultra-small-footprint DC-DC conversion with digital voltage control-targeting next-generation smartphones, wearables, and intelligent edge sensors.
FAQ
What is the default output voltage of the TPS62651YFFR when powered up without I²C configuration?
The TPS62651YFFR powers up to a factory-programmed default output voltage of 0.95 V when VSEL = GND or 1.1 V when VSEL = VI. These values are set by internal hardware logic (VSEL0/VSEL1 bits) and cannot be altered via I²C-ensuring deterministic startup behavior for systems lacking early-boot I²C access. This differs from the TPS62650YFFR, which defaults to 1.05 V/1.2 V.
Does the TPS62651YFFR support true high-speed I²C mode (3.4 Mbps) in production operation?
Yes, the TPS62651YFFR fully supports High-Speed I²C mode up to 3.4 Mbps for both read and write operations, as verified in the SLVS808B datasheet timing tables. It meets all HS-mode requirements including tHD,STA ≤160 ns and tSU,DAT ≥10 ns with CB ≤100 pF, enabling sub-100 µs voltage reconfiguration critical for dynamic performance scaling in OMAP™ platforms.
How does the TPS62651YFFR achieve stable regulation without external compensation components?
The TPS62651YFFR uses a frequency-locked ring-oscillating modulator architecture that replaces traditional voltage-mode or current-mode control loops. This non-linear, comparator-based scheme provides instantaneous response to load or line transients and inherently stabilizes with small LC values-no external compensation network is needed, even with 0.47 µH inductors and 4.7 µF ceramic capacitors.
Can the TPS62651YFFR operate reliably at 800 mA continuous output current across its full temperature range?
Yes, the TPS62651YFFR is rated for 800 mA continuous output current from –40°C to +85°C ambient, validated under worst-case conditions (VI = 2.3 V, VO = 0.75 V). Thermal derating is managed via its 105°C/W junction-to-ambient thermal resistance (YFF package) and internal thermal shutdown at 140°C with 15°C hysteresis-ensuring robust operation in sealed handheld enclosures.
What is the minimum output voltage step size achievable via I²C on the TPS62651YFFR?
The TPS62651YFFR supports 12.5-mV output voltage steps across its full 0.75 V to 1.4375 V range, enabled by its 6-bit monotonic DAC. Each I²C write to the VOUT register increments or decrements the output by exactly 12.5 mV-providing the fine-grained control required for adaptive voltage scaling in modern application processors like OMAP4.
TPS62651YFFR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 9-UFBGA, DSBGA
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- 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 (0.95V, 1.1V)
- 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
TPS62651YFFR FAQ
1.How can I place an order for TPS62651YFFR through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS62651YFFR 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 TPS62651YFFR reliable?
The price and inventory of TPS62651YFFR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS62651YFFR is usually 5 days.
3.What payment methods are accepted for TPS62651YFFR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS62651YFFR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS62651YFFR?
TPS62651YFFR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS62651YFFR 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 TPS62651YFFR?
For technical support, including TPS62651YFFR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS62651YFFR requirements.
6.How does Aetrix verify that TPS62651YFFR is sourced from the original manufacturer or authorized distributors?
All TPS62651YFFR 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 TPS62651YFFR meets industry standards.
7.What is the process for return or replacement of TPS62651YFFR?
All TPS62651YFFR units undergo pre-shipment inspection (PSI). If there is an issue with TPS62651YFFR, 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 TPS62651YFFR part is unused and in its original packaging.
Return procedure for TPS62651YFFR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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