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Texas Instruments TPS63051YFFT
- Part No.:
- TPS63051YFFT
- Manufacturer:
- Texas Instruments
- Package:
- 12-UFBGA, DSBGA
- Datasheet:
-
TPS63051YFFT.pdf
- Description:
- IC REG BUCK BOOST 3.3V 12DSBGA
- Quantity:
- Payment:
- Shipping:
Inventory:1,405
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Product details
Overview
TPS63051YFFT from Texas Instruments is a fixed-output 3.3 V, 500 mA synchronous buck-boost DC/DC converter with seamless mode transition, 2.5–5.5 V input range, 2.5 MHz switching frequency, and <65 µA quiescent current. It delivers regulated power in battery-powered portable electronics where input voltage may dip below or rise above the output rail.
For engineers reviewing the TPS63051YFFT datasheet, TPS63051YFFT pinout, TPS63051YFFT application, or TPS63051YFFT equivalent, key selection criteria include its fixed 3.3 V output, programmable input current limit via ILIM0/ILIM1, soft-start control via SS pin, open-drain PG signal, and dual-package availability (DSBGA YFF and HotRod QFN RMW).
Technical Context
The TPS63051YFFT implements average current-mode control using four internal N-channel MOSFETs-operating as either buck (VIN > VOUT) or boost (VIN < VOUT) with one switch held on and one held off to minimize switching losses. Seamless mode transition occurs without output disruption across the full 2.5–5.5 V input range.
It supports dual operation modes: automatic PFM/PWM (via PFM/PWM pin) for high light-load efficiency (>90% in boost, >95% in buck), and forced PWM for low-noise, fixed-frequency operation. Power good (PG) asserts when VOUT reaches ≥95% of nominal and deasserts at ≤90%, with behavior conditioned by EN and ILIM0/ILIM1 logic states.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 3.3 V ±1.1% (PWM mode); enables direct replacement of LDOs or adjustable buck-boosts requiring stable 3.3 V rail |
| Max Output Current | 500 mA continuous in boost mode; sufficient for USB peripherals, PMIC rails, and low-power SoCs |
| Input Voltage Range | 2.5 V to 5.5 V; supports single-cell Li-ion (2.7–4.2 V), LiFePO₄, or two-cell alkaline/NiMH batteries |
| Switching Frequency | 2.5 MHz typical; allows use of compact 1.5 µH inductors and 10 µF ceramic output capacitors |
| Quiescent Current | 43–65 µA; extends battery runtime in always-on or low-duty-cycle IoT sensor nodes |
| Soft-Start Time | 280 µs (buck), 600 µs (boost); limits inrush current during power-up without external timing components |
| Efficiency | >95% in buck mode, >90% in boost mode; reduces thermal load in space-constrained handheld enclosures |
Pinout & Package
TPS63051YFFT is packaged in a 1.6 mm × 1.2 mm, 12-pin DSBGA (YFF) wafer-level chip-scale package with bottom-side solder balls. Thermal performance is optimized via low RθJB = 43.9°C/W.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VIN | Power input | Supplies both control circuitry and power stage; accepts 2.5–5.5 V; connects to input capacitor and inductor L1 |
| VOUT | Regulated output | Delivers fixed 3.3 V; connects to output capacitor and load; requires 10 µF minimum ceramic capacitance |
| GND | Power and signal ground | Two dedicated pins (pins 2 & 9) provide low-impedance return paths for power stage and control logic |
| EN | Enable control | Active-high digital input; must be pulled high to operate; floating state disables device and disconnects load |
| PG | Power good indicator | Open-drain output; pulled high externally; signals VOUT ≥95% nominal; goes low during UVLO, thermal shutdown, or current limit |
| PFM/PWM | Mode select | Logic input: low = automatic PFM/PWM (efficiency-optimized), high = forced PWM (fixed 2.5 MHz, low-noise) |
| SS | Soft-start timing | Capacitor-connected pin; charges at 1 µA; sets monotonic output ramp time; floating = default 280–600 µs |
| ILIM0 / ILIM1 | Input current limit programming | Two logic inputs selecting 4 discrete input current limit levels (e.g., 550–1400 mA at VIN=3.3 V); required for inrush control |
| L1 / L2 | Inductor connections | Dual inductor terminals enabling single-inductor buck-boost topology; L1 connects to VIN, L2 to VOUT |
| FB | Feedback input | Internally tied to VOUT for fixed-output TPS63051; not user-accessible; differs from adjustable TPS63050 |
Key Features
| Feature | Design Value |
|---|---|
| Seamless buck-boost transition | Maintains uninterrupted 3.3 V output as input drops from 4.2 V (charged Li-ion) to 2.7 V (discharged), eliminating brownouts in portable systems |
| Programmable input current limit | Four discrete settings (via ILIM0/ILIM1) prevent battery sag or protection IC tripping during cold start or high-capacitance load turn-on |
| Load disconnect during shutdown | Internal switch isolates VOUT from VIN when EN = low, preventing reverse current and enabling true system power gating |
| Integrated overtemperature protection | Thermal shutdown at 140°C with 20°C hysteresis prevents damage under sustained overload or poor PCB thermal design |
| Adjustable soft-start | External capacitor on SS pin allows tuning of inrush current profile-critical for meeting IEC 61000-4-5 surge immunity requirements |
Applications
| Smartphones & Feature Phones | Tablet PC Power Rails |
|---|---|
Use Scenario: Powering baseband processor I/O, camera modules, and display interface circuits from a single-cell Li-ion battery. IC Role / Device Role / Timing Role: Primary buck-boost regulator delivering stable 3.3 V despite battery voltage decay from 4.2 V to 2.7 V. Use Value: Eliminates need for separate buck and boost converters; reduces BOM count and PCB area by 40% versus dual-regulator solutions. | Use Scenario: Supplying 3.3 V to USB OTG controllers, SD card interfaces, and touch controller ICs in 7–10 inch tablets. IC Role / Device Role / Timing Role: Fixed-output step-up/down converter supporting dynamic load steps up to 300 mA with <30 mV ripple in PWM mode. Use Value: Achieves >92% efficiency at 200 mA load across full battery range, extending usable tablet runtime by 18 minutes per charge cycle. |
| Smart Meter RF Modules | Portable Medical Sensors |
Use Scenario: Powering sub-GHz RF transceivers (e.g., TI CC1310) in battery-operated smart grid endpoints with 10-year field life. IC Role / Device Role / Timing Role: Low-quiescent-current (43 µA) buck-boost supplying 3.3 V to RF IC during periodic 100-ms transmit bursts. Use Value: Enables 10-year battery life using two AA cells by minimizing no-load power loss and supporting deep-sleep PFM mode. | Use Scenario: Regulating power for wearable ECG/SpO₂ sensors operating from coin-cell or small Li-poly batteries. IC Role / Device Role / Timing Role: Compact 1.6 mm × 1.2 mm DSBGA regulator providing 3.3 V with load-disconnect during sleep to prevent battery drain. Use Value: Reduces solution footprint by 35% vs. QFN alternatives while maintaining medical-grade output accuracy (±1.1%) and thermal safety. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar buck-boost converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS63050YFFT | Adjustable output (0.8 V feedback); requires external resistor divider; same pinout and package | Suitable when multiple output voltages are needed on same board or future design flexibility is required | Select TPS63050YFFT only if adjustable VOUT is necessary; TPS63051YFFT saves BOM cost and layout space with fixed 3.3 V |
| MAX77827BEWL+T | 3.3 V fixed output; 1.2 A max output; 3 MHz switching; different pinout (16-pin WLP); no PG or soft-start pin | Better suited for higher-current applications but lacks power-good signaling and programmable current limiting | Choose MAX77827BEWL+T only when >500 mA output or 3 MHz operation is mandatory; TPS63051YFFT offers superior feature integration for mid-power portable designs |
Compared with TPS63050YFFT, the TPS63051YFFT eliminates external resistors and simplifies layout, while MAX77827BEWL+T trades integrated diagnostics (PG, SS, ILIM) for higher current-making TPS63051YFFT optimal for cost-sensitive, space-constrained 3.3 V systems needing robust power sequencing.
Availability
TPS63051YFFT is available at Aetrix Electronics and suitable for smartphones, smart meters, portable medical devices, and battery-powered industrial sensors requiring stable component supply with consistent parametric performance and long-term manufacturability.
Supply support for TPS63051YFFT 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 TPS6305x product line was designed specifically for portable battery-powered applications demanding seamless voltage regulation across wide input ranges, low quiescent current, and minimal solution size-exemplified by the fixed-output TPS63051YFFT in ultra-compact DSBGA packaging.
FAQ
What is the output voltage tolerance of the TPS63051YFFT under PWM mode?
The TPS63051YFFT delivers a fixed 3.3 V output with ±1.1% accuracy under PWM mode conditions (VIN = 3.6 V, TJ = –40°C to 125°C). This specification ensures reliable operation of 3.3 V I/O interfaces in smartphones and tablets without requiring post-regulation filtering or calibration. The TPS63051YFFT maintains this tolerance across its full 2.5–5.5 V input range and 0–500 mA load range.
Does the TPS63051YFFT support load disconnect during shutdown?
Yes, the TPS63051YFFT integrates an internal switch that disconnects the VOUT rail from VIN when the EN pin is driven low. This prevents reverse current flow and eliminates standby battery drain-a critical feature for always-on IoT sensors and portable medical devices. The TPS63051YFFT achieves this without external MOSFETs or control logic, reducing solution complexity and PCB footprint.
How does the PFM/PWM pin affect efficiency and noise performance of the TPS63051YFFT?
When the PFM/PWM pin is low, the TPS63051YFFT enters automatic PFM/PWM mode, reducing switching frequency at light loads to maintain >90% efficiency down to 1 mA. When high, it forces fixed 2.5 MHz PWM operation-lowering output ripple (<30 mVpp) and EMI but increasing light-load quiescent current. This dual-mode capability makes the TPS63051YFFT adaptable to both battery-life-critical and noise-sensitive applications.
What thermal metrics apply to the TPS63051YFFT in its YFF DSBGA package?
The TPS63051YFFT in the 1.6 mm × 1.2 mm YFF DSBGA package has RθJA = 89.9°C/W (junction-to-ambient) and RθJB = 43.9°C/W (junction-to-board) under JEDEC JESD51-7 conditions. Its low RθJB enables effective heat transfer to the PCB, allowing operation at full 500 mA load in compact handheld enclosures without forced airflow-verified across –40°C to 85°C ambient temperature.
Can the TPS63051YFFT be used with ceramic output capacitors, and what is the minimum recommended value?
Yes, the TPS63051YFFT is fully compatible with ceramic output capacitors. The datasheet specifies a minimum 10 µF effective capacitance at VOUT, accounting for DC bias derating-so a 10 µF/6.3 V X5R or X7R ceramic capacitor is sufficient. This enables compact, low-ESR filtering and eliminates the need for bulk electrolytic capacitors, reducing height and improving reliability in thin-profile devices using the TPS63051YFFT.
TPS63051YFFT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 12-UFBGA, DSBGA
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Function:
- Step-Up/Step-Down
- Output Configuration:
- Positive
- Topology:
- Buck-Boost
- Output Type:
- Fixed
- Number of Outputs:
- 1
- Voltage - Input (Min):
- 2.5V
- Voltage - Input (Max):
- 5.5V
- Voltage - Output (Min/Fixed):
- 3.3V
- Voltage - Output (Max):
- -
- Current - Output:
- 500mA
- Frequency - Switching:
- 2.5MHz
- Synchronous Rectifier:
- Yes
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 12-DSBGA
TPS63051YFFT FAQ
1.How can I place an order for TPS63051YFFT through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS63051YFFT 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 TPS63051YFFT reliable?
The price and inventory of TPS63051YFFT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS63051YFFT is usually 5 days.
3.What payment methods are accepted for TPS63051YFFT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS63051YFFT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS63051YFFT?
TPS63051YFFT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS63051YFFT 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 TPS63051YFFT?
For technical support, including TPS63051YFFT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS63051YFFT requirements.
6.How does Aetrix verify that TPS63051YFFT is sourced from the original manufacturer or authorized distributors?
All TPS63051YFFT 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 TPS63051YFFT meets industry standards.
7.What is the process for return or replacement of TPS63051YFFT?
All TPS63051YFFT units undergo pre-shipment inspection (PSI). If there is an issue with TPS63051YFFT, 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 TPS63051YFFT part is unused and in its original packaging.
Return procedure for TPS63051YFFT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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