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Texas Instruments TPS630250YFFT
- Part No.:
- TPS630250YFFT
- Manufacturer:
- Texas Instruments
- Package:
- 20-UFBGA, DSBGA
- Datasheet:
-
TPS630250YFFT.pdf
- Description:
- IC REG BUCK BOOST ADJ 20DSBGA
- Quantity:
- Payment:
- Shipping:
Inventory:2,500
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Product details
Overview
TPS630250YFFT from Texas Instruments is an adjustable-output, synchronous buck-boost DC/DC converter in a 20-pin DSBGA package. It delivers up to 2 A continuous output current with 95% peak efficiency in buck or boost mode and operates across a 2.3 V to 5.5 V input range while maintaining seamless mode transition. It is used in battery-powered portable electronics requiring stable 3.3 V rail generation from varying Li-ion or multi-cell sources.
For engineers reviewing the TPS630250YFFT datasheet, TPS630250YFFT pinout, TPS630250YFFT application, or TPS630250YFFT equivalent, key selection criteria include its 2.5 MHz fixed-frequency PWM operation, 35 µA quiescent current in Power Save Mode, integrated soft-start, true shutdown with output discharge, and dual ground (PGND/GND) separation for noise-sensitive analog control paths.
Technical Context
The TPS630250YFFT employs average current-mode control with four internal N-channel MOSFETs-two for buck and two for boost-operating in complementary pairs to minimize switching losses. It uses a single inductor and automatically selects buck or boost topology based on VIN vs VOUT, never switching all four FETs simultaneously.
Its control architecture reconstructs inductor current via high-side buck FET sensing, feeds into a transconductance amplifier (gmv), and compares the correction signal (gmc) against buck/boost sawtooth ramps to determine mode selection. In buck-boost crossover regions, it alternates cycles to ensure stability and efficiency without more than three consecutive identical-mode cycles.
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), USB (4.5–5.5 V), and partially discharged batteries without rail collapse. |
| Output Current | 2 A continuous - sufficient for core logic, RF transceivers, or display drivers in compact portable systems. |
| Switching Frequency | 2.5 MHz typical - enables use of small 1 µH inductors and ceramic capacitors, reducing solution footprint. |
| Quiescent Current | 35 µA - extends battery runtime during light-load standby in always-on subsystems. |
| Feedback Voltage | 0.8 V ±1% - sets output via external resistor divider; supports 2.5 V to 3.6 V adjustable range with tight regulation. |
| Efficiency | Up to 95% in buck/boost - minimizes thermal rise in space-constrained WCSP packages; 97% at VIN = VOUT. |
| Soft-Start Time | 450 µs (buck) / 700 µs (boost) - prevents inrush current and output overshoot during power-up. |
Pinout & Package
TPS630250YFFT is housed in a 1.766 mm × 2.086 mm, 20-pin DSBGA (YFF) package with bottom-soldered ball layout optimized for thermal performance and PCB area efficiency.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VIN (E1–E3) | Power Input | Supplies high-current path to power stage; must be decoupled near package with low-ESR capacitor. |
| VINA (E4) | Analog Supply | Provides clean bias for control circuitry; separate from VIN to isolate noise-sensitive reference paths. |
| PGND (C1–C3) | Power Ground | Return path for switch currents; requires low-inductance connection to input/output capacitors. |
| GND (C4) | Analog Ground | Reference for FB, EN, PFM/PWM; must connect to PGND at single point near GND ball to avoid ground shift. |
| L1 (D1–D3), L2 (B1–B3) | Inductor Connections | Two dedicated inductor terminals enable single-inductor buck-boost topology; require symmetric trace routing. |
| VOUT (A1–A3) | Regulated Output | Delivers regulated voltage; connects directly to output capacitor and load; sensitive to layout parasitics. |
| FB (A4) | Feedback Input | Monitors output via resistor divider; high-impedance node (10–100 nA bias) requiring short, shielded trace. |
| EN (D4) | Enable Control | Active-high logic input; drives device into true shutdown with <2 µA supply current and output discharge function. |
| PFM/PWM (B4) | Mode Select | Low = automatic PFM/PWM transition; high = forced 2.5 MHz PWM; must not float to prevent erratic operation. |
Key Features
| Feature | Design Value |
|---|---|
| Automatic Buck-Boost Transition | Seamlessly switches between topologies without output disturbance when VIN crosses VOUT - eliminates need for external supervision or mode control logic. |
| Integrated Output Discharge | 120 Ω internal discharge path activates during shutdown - discharges 20 µF output cap from 3.3 V to UVLO in <10 ms, preventing residual voltage hazards. |
| Dual-Ground Architecture | Separate PGND and GND pins - isolates high di/dt power return from precision analog reference, improving PSRR and loop stability. |
| Over-Temperature Protection | Thermal shutdown at 140 °C with 20 °C hysteresis - protects silicon and PCB during sustained overload or poor heatsinking. |
| Short-Circuit Protection | Current-limited to 4 A during output fault - prevents damage to IC and external components while maintaining safe operating area. |
Applications
| Smartphone Baseband Power | USB-Powered IoT Hub |
|---|---|
Use Scenario: Powers application processor I/O and memory interfaces from a single-cell Li-ion battery 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 rail; manages dynamic load steps up to 2 A with <30 mV PFM ripple. Use Value: Eliminates need for separate buck and boost stages, reducing BOM count by 2 ICs and saving >25 mm² PCB area. | Use Scenario: Supplies 3.3 V to BLE/Wi-Fi SoC and sensors in a compact USB-powered edge node with variable input (4.75–5.25 V). IC Role / Device Role / Timing Role: Input-voltage-agile regulator maintaining regulation despite USB port tolerance and cable drop. Use Value: Enables direct USB-to-3.3 V conversion without intermediate 5 V LDO, improving system efficiency by 8–12% at 500 mA load. |
| Portable Medical Monitor | Wearable Display Subsystem |
Use Scenario: Powers ECG front-end analog circuitry and microcontroller in a battery-operated handheld monitor with strict low-noise requirements. IC Role / Device Role / Timing Role: Low-quiescent-current power source with separated PGND/GND and 35 µA IQ in sleep mode. Use Value: Extends battery life to >72 hours per charge while meeting medical-grade ripple (<10 mV RMS) via PWM-only operation. | Use Scenario: Drives OLED display driver IC and touch controller in a wrist-worn device where thickness and thermal density are constrained. IC Role / Device Role / Timing Role: Compact-area power solution using 1.766 mm × 2.086 mm WCSP package and 1 µH inductor. Use Value: Achieves 2 A output in <3 mm² total solution size, enabling curved-flex PCB integration without thermal derating. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar buck-boost regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS630252YFFT | Fixed 3.3 V output; same package, pinout, and specs except FB pin tied internally to 0.8 V reference. | No external resistor divider required; eliminates two passive components but forfeits output adjustability. | Select when 3.3 V is fixed-system requirement and board space is premium; no change to layout or inductor/capacitor selection. |
| MAX77827BEWL+T | 2.5 V–5.5 V input; 3.3 V fixed output; 2.2 MHz switching; 25 µA IQ; 20-ball WLP package (2.13 mm × 1.73 mm). | Lower quiescent current and smaller footprint, but lacks PFM/PWM pin control and has no output discharge function. | Select when ultra-low IQ and minimal size outweigh need for programmable output and controlled shutdown discharge. |
Compared with TPS630250YFFT, TPS630252YFFT offers identical performance with simplified design for fixed 3.3 V use, while MAX77827BEWL+T trades configurability and safety features for lower IQ and smaller size-making each suitable for distinct trade-off priorities in portable power architecture.
Availability
TPS630250YFFT is available at Aetrix Electronics and suitable for smartphone baseband power, USB-powered IoT hubs, and portable medical monitors requiring stable component supply with guaranteed long-term sourcing.
Supply support for TPS630250YFFT 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 50 years of innovation in energy-efficient power conversion.
The TPS63025x product line was designed specifically for high-efficiency, space-constrained portable electronics needing single-inductor buck-boost regulation across wide input ranges - targeting smartphones, wearables, and battery-powered industrial sensors.
FAQ
What is the recommended inductor value for TPS630250YFFT in a 3.3 V output design?
The recommended inductor value for TPS630250YFFT in a 3.3 V output design is 1 µH, as validated in TI's typical application circuit and supported by efficiency curves. Coilcraft XAL4020-102ME (4 mm × 4 mm × 2.1 mm, 4.5 A saturation current, 10 mΩ DCR) is a qualified part. Inductor selection must meet minimum saturation current (≥4.5 A) and DCR <20 mΩ to maintain >95% efficiency at full load.
Does TPS630250YFFT support forced PWM mode, and how is it enabled?
Yes, TPS630250YFFT supports forced PWM mode via the PFM/PWM pin. To enable it, drive the PFM/PWM pin high (VIH ≥1.2 V); this disables automatic PFM entry and locks operation at 2.5 MHz fixed frequency. The pin must not be left floating - tie to VIN through a 100 kΩ resistor if PWM-only operation is required across all loads.
How does the output discharge function work in TPS630250YFFT during shutdown?
When EN is pulled low, TPS630250YFFT activates an internal 120 Ω discharge transistor between VOUT and PGND. This discharges the output capacitor - for example, a 20 µF cap charged to 3.3 V drops to UVLO threshold (~1.7 V) in under 10 ms. The function only operates when input voltage is present; it is disabled if VIN is removed before shutdown.
What is the purpose of separating PGND and GND pins on TPS630250YFFT?
TPS630250YFFT separates PGND (power ground) and GND (analog ground) to isolate high-di/dt switch return currents from the sensitive analog reference circuitry. PGND carries pulsed inductor currents, while GND serves as the quiet reference for FB, EN, and PFM/PWM. They must connect at a single point near the GND ball to prevent ground bounce and ensure stable feedback loop operation.
Can TPS630250YFFT operate with input voltage below 2.5 V, and what is the minimum functional VIN?
TPS630250YFFT specifies a recommended input range of 2.3 V to 5.5 V, but minimum functional VIN depends on load and output voltage. At 2 A output and 3.3 V VOUT, the device requires ≥2.8 V input to sustain regulation (per datasheet Section 8.5). Below 2.8 V, output current capability degrades progressively; operation below 2.3 V is prohibited per absolute maximum ratings and triggers UVLO shutdown.
TPS630250YFFT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 20-UFBGA, DSBGA
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Function:
- Step-Up/Step-Down
- Output Configuration:
- Positive
- Topology:
- Buck-Boost
- Output Type:
- Adjustable
- Number of Outputs:
- 1
- Voltage - Input (Min):
- 2.3V
- Voltage - Input (Max):
- 5.5V
- Voltage - Output (Min/Fixed):
- 2.3V
- Voltage - Output (Max):
- 3.6V
- Current - Output:
- 2A, 4A
- Frequency - Switching:
- 2.5MHz
- Synchronous Rectifier:
- Yes
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 20-DSBGA
TPS630250YFFT FAQ
1.How can I place an order for TPS630250YFFT through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS630250YFFT 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 TPS630250YFFT reliable?
The price and inventory of TPS630250YFFT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS630250YFFT is usually 5 days.
3.What payment methods are accepted for TPS630250YFFT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS630250YFFT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS630250YFFT?
TPS630250YFFT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS630250YFFT 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 TPS630250YFFT?
For technical support, including TPS630250YFFT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS630250YFFT requirements.
6.How does Aetrix verify that TPS630250YFFT is sourced from the original manufacturer or authorized distributors?
All TPS630250YFFT 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 TPS630250YFFT meets industry standards.
7.What is the process for return or replacement of TPS630250YFFT?
All TPS630250YFFT units undergo pre-shipment inspection (PSI). If there is an issue with TPS630250YFFT, 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 TPS630250YFFT part is unused and in its original packaging.
Return procedure for TPS630250YFFT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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