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Texas Instruments TPS63051YFFR
- Part No.:
- TPS63051YFFR
- Manufacturer:
- Texas Instruments
- Package:
- 12-UFBGA, DSBGA
- Datasheet:
-
TPS63051YFFR.pdf
- Description:
- IC REG BUCK BOOST 3.3V 12DSBGA
- Quantity:
- Payment:
- Shipping:
Inventory:8,670
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Product details
Overview
TPS63051YFFR from Texas Instruments is a fixed-output 3.3 V, 500 mA synchronous buck-boost DC/DC converter in a 1.6 mm × 1.2 mm, 12-pin DSBGA (WCSP) package. It operates across 2.5 V–5.5 V input, delivers >90% efficiency in boost mode and >95% in buck mode, uses 2.5 MHz fixed-frequency PWM or PFM/PWM auto-switching, and integrates soft-start, power-good, and thermal shutdown for portable power management.
For engineers reviewing the TPS63051YFFR datasheet, TPS63051YFFR pinout, TPS63051YFFR application, or TPS63051YFFR equivalent, key selection criteria include its seamless buck-boost transition, programmable input current limit via ILIM0/ILIM1, 1 µA soft-start current, 43–65 µA quiescent current, and guaranteed 3.27–3.34 V output accuracy in PWM mode.
Technical Context
The TPS63051YFFR implements average-current-mode control with four internal N-channel MOSFETs-operating as either buck (VIN > VOUT) or boost (VIN < VOUT) with no simultaneous switching of all FETs. Its seamless mode transition avoids output discontinuity during VIN crossing VOUT, while internal current sensing reconstructs inductor current in both modes using high-side buck FET conduction data.
It supports dual operation modes: forced PWM (via PFM/PWM = high) at 2.5 MHz for low-noise regulation, or automatic PFM/PWM (PFM/PWM = low) with load-dependent frequency reduction to maintain high light-load efficiency. Power-good (PG) is an open-drain output with 95% turn-on and 90% turn-off thresholds, requiring external pull-up and disabled under UVLO, thermal shutdown, or current limit.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 3.3 V ±0.03 V (3.27–3.34 V) in PWM mode; ensures stable rail for 3.3 V logic and peripherals. |
| Max Output Current | 500 mA continuous in boost mode; sufficient for single-core microcontrollers, sensors, and RF modules. |
| Input Voltage Range | 2.5 V to 5.5 V; supports single-cell Li-ion (2.7–4.2 V), Li-polymer, or two-cell alkaline/NiMH inputs. |
| Quiescent Current | 43–65 µA at 3.6 V input; minimizes battery drain in always-on or sleep-state applications. |
| Switching Frequency | 2.5 MHz typical in PWM mode; enables use of small 1.5 µH inductors and 10 µF ceramic output capacitors. |
| Soft-Start Current | 1 µA (TPS63051-specific); sets monotonic VOUT ramp time via external SS capacitor, limiting inrush. |
| Efficiency | >90% in boost mode (VIN = 2.8 V, VOUT = 3.3 V); >95% in buck mode (VIN = 3.6 V, VOUT = 3.3 V); extends runtime. |
| Thermal Shutdown | 140°C with 20°C hysteresis; protects IC and PCB during sustained overload or poor heatsinking. |
Pinout & Package
TPS63051YFFR uses a 1.6 mm × 1.2 mm, 12-pin DSBGA (WCSP) package with bottom-soldered ball layout. Thermal performance includes RθJA = 89.9°C/W and RθJB = 43.9°C/W, optimized for compact handheld PCBs with limited copper area.
| 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 battery/analog rail. |
| VOUT | Regulated output | Delivers fixed 3.3 V; requires 10 µF ceramic output capacitor; feeds downstream logic, sensors, or radios. |
| EN | Enable control | Active-high digital input; must be pulled high (≥1.2 V) to operate; floating = shutdown; disconnects load from VIN. |
| FB | Feedback reference | Internally tied to 3.3 V output; not user-accessible on TPS63051 (fixed version); differs from adjustable TPS63050. |
| GND | Power and signal ground | Two dedicated pins (B1, B2/B9) provide low-impedance return paths for power stage and control logic. |
| L1 / L2 | Inductor connections | Connect opposite ends of single 1.5 µH inductor; forms buck-boost power path; requires tight layout to minimize EMI. |
| PFM/PWM | Mode select | Logic input: low = auto PFM/PWM; high = forced 2.5 MHz PWM; determines light-load efficiency vs ripple trade-off. |
| PG | Power-good indicator | Open-drain output; pulls low if VOUT < 90% nominal or during fault; requires external pull-up to ≤5.5 V rail. |
| SS | Soft-start timing | Accepts external capacitor; charged at 1 µA; sets startup ramp time; floating = default ~280 µs (buck) or ~600 µs (boost). |
| ILIM0 / ILIM1 | Input current limit select | Dual logic inputs configuring four input current limit levels; used during startup to prevent inrush into large output caps. |
Key Features
| Feature | Design Value |
|---|---|
| Seamless buck-boost transition | Automatic mode switching at VIN ≈ VOUT eliminates output voltage glitch or dropout during battery discharge. |
| Programmable input current limit | Four discrete levels set by ILIM0/ILIM1 logic states; prevents inrush damage when charging output capacitance at startup. |
| Adjustable soft-start | 1 µA constant-current source at SS pin enables precise control of VOUT ramp rate and inrush peak current. |
| Power-good monitoring | Open-drain PG asserts high only when VOUT ≥95% of 3.3 V and remains valid during EN = high and VIN present. |
| Dynamic Voltage Positioning | VOUT in PFM mode is ~1.5% higher than nominal (≈3.35 V) to absorb heavy transient loads without violating 3.3 V min spec. |
| Thermal and overcurrent protection | Integrated 140°C thermal shutdown with 20°C hysteresis and short-circuit detection limiting output to 1.5 A. |
Applications
| Smartphone Power Rail | IoT Sensor Node |
|---|---|
Use Scenario: Powers baseband processor, display interface, and PMIC rails from a single Li-ion cell whose voltage sags from 4.2 V to 2.8 V during discharge. IC Role / Device Role / Timing Role: Primary buck-boost regulator delivering stable 3.3 V regardless of battery state; manages seamless mode transition as VIN crosses 3.3 V. Use Value: Eliminates need for separate buck and boost converters, reducing BOM count, PCB area, and design complexity. | Use Scenario: Supplies 3.3 V to ultra-low-power MCU, BLE radio, and environmental sensors in battery-operated edge node. IC Role / Device Role / Timing Role: Always-on power manager enabling <65 µA quiescent draw and automatic PFM/PWM mode switching to extend 10-year battery life. Use Value: Maintains >90% efficiency down to 1 mA load via PFM mode, while 2.5 MHz PWM ensures clean supply for RF transmission. |
| Smart Meter MCU Supply | USB-C Accessory Power |
Use Scenario: Provides regulated 3.3 V to metrology MCU and communication ICs in smart grid meters powered by supercapacitor backup. IC Role / Device Role / Timing Role: Buck-boost converter accepting wide 2.5–5.5 V input from primary battery or supercap bank; supports cold-start from 2.7 V. Use Value: Guaranteed 500 mA output at 2.7 V input enables reliable operation during brownout or capacitor discharge events. | Use Scenario: Generates 3.3 V from USB-C PD source (5 V or 9 V) for accessory logic, LEDs, and status indicators. IC Role / Device Role / Timing Role: Step-down regulator operating in buck mode at 5 V input; leverages >95% efficiency and 2.5 MHz switching for compact filter design. Use Value: Enables use of tiny 1.5 µH inductor and 10 µF X7R ceramics, reducing solution size below 15 mm² including passives. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar buck-boost regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS63050YFFT | Adjustable output (0.8 V–5.5 V) via external resistor divider; identical pinout, package, and core specs. | Suitable where multiple output voltages or future design flexibility are required; not drop-in for fixed 3.3 V. | Select TPS63050YFFT only if adjustable VOUT is needed; requires FB resistor network and layout changes. |
| MP2155GQZ-P | 3.3 V fixed output, 600 mA, 2.2 MHz, 2.7–5.5 V input; smaller 1.6 mm × 1.6 mm QFN-10; no PG or programmable current limit. | Better suited for space-constrained designs where PG and inrush control are non-critical. | Choose MP2155GQZ-P for minimal footprint and cost-sensitive volume production; verify thermal derating at full load. |
Compared with TPS63051YFFR, TPS63050YFFT offers design flexibility at the cost of added components and calibration effort, while MP2155GQZ-P trades feature richness (PG, ILIM, soft-start adjustability) for smaller size and lower unit cost in less demanding applications.
Availability
TPS63051YFFR is available at Aetrix Electronics and suitable for smartphone power management, IoT sensor nodes, smart meter MCU supplies, and USB-C accessory power requiring stable component supply, long-term lifecycle support, and traceable sourcing.
Supply support for TPS63051YFFR 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 ICs, with decades of expertise in high-efficiency DC/DC conversion.
The TPS6305x product line was designed specifically for battery-powered portable electronics needing seamless buck-boost regulation, ultra-low quiescent current, and compact WCSP packaging for space-constrained handheld devices.
FAQ
What is the output voltage tolerance of the TPS63051YFFR under PWM operation?
The TPS63051YFFR delivers a fixed 3.3 V output with ±0.03 V (3.27–3.34 V) accuracy under PWM mode conditions, measured at TJ = –40°C to 125°C with VIN = 3.6 V and IOUT = 0–500 mA. This tight tolerance ensures compatibility with 3.3 V logic families and ADC references without external trimming. The TPS63051YFFR specification sheet confirms this range is guaranteed across temperature and load.
Does the TPS63051YFFR support automatic mode transition between buck and boost?
Yes, the TPS63051YFFR automatically transitions between buck and boost operation without external control or firmware intervention. When VIN crosses VOUT (~3.3 V), the internal average-current-mode controller seamlessly switches topology to maintain regulation-verified in TI's SLVSAM8D datasheet Figure 1 and Section 8.1. This behavior is intrinsic to the TPS63051YFFR architecture and requires no configuration.
How does the soft-start function work on the TPS63051YFFR?
The TPS63051YFFR uses a 1 µA constant-current source to charge an external capacitor at the SS pin, controlling VOUT ramp time. With no capacitor, default soft-start times are ~280 µs (buck) or ~600 µs (boost). The TPS63051YFFR datasheet specifies SS pin current as 1 µA (typical), enabling predictable inrush limiting and eliminating output overshoot during power-up.
Can the TPS63051YFFR be used in forced PWM mode only?
Yes, the TPS63051YFFR supports forced PWM mode by holding the PFM/PWM pin high (≥1.2 V), fixing switching at 2.5 MHz regardless of load. This eliminates PFM-mode ripple and simplifies EMI filtering but increases light-load quiescent current versus auto PFM/PWM mode. The TPS63051YFFR's electrical characteristics table confirms PWM operation is fully supported and characterized.
What protection features are integrated into the TPS63051YFFR?
The TPS63051YFFR integrates undervoltage lockout (1.7 V threshold), thermal shutdown (140°C), short-circuit protection (1.5 A limit), and overvoltage protection (6.7 V clamp). It also provides load disconnect during shutdown and power-good monitoring. All protections are active by default and require no external components-confirmed in Sections 7.1, 7.5, and 8.3 of the TPS63051YFFR datasheet.
TPS63051YFFR 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
TPS63051YFFR FAQ
1.How can I place an order for TPS63051YFFR through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS63051YFFR 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 TPS63051YFFR reliable?
The price and inventory of TPS63051YFFR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS63051YFFR is usually 5 days.
3.What payment methods are accepted for TPS63051YFFR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS63051YFFR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS63051YFFR?
TPS63051YFFR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS63051YFFR 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 TPS63051YFFR?
For technical support, including TPS63051YFFR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS63051YFFR requirements.
6.How does Aetrix verify that TPS63051YFFR is sourced from the original manufacturer or authorized distributors?
All TPS63051YFFR 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 TPS63051YFFR meets industry standards.
7.What is the process for return or replacement of TPS63051YFFR?
All TPS63051YFFR units undergo pre-shipment inspection (PSI). If there is an issue with TPS63051YFFR, 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 TPS63051YFFR part is unused and in its original packaging.
Return procedure for TPS63051YFFR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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