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Texas Instruments TPS630252YFFR
- Part No.:
- TPS630252YFFR
- Manufacturer:
- Texas Instruments
- Package:
- 20-UFBGA, DSBGA
- Datasheet:
-
TPS630252YFFR.pdf
- Description:
- IC REG BCK BST 3.3V 3.5A 20DSBGA
- Quantity:
- Payment:
- Shipping:
Inventory:16,280
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Product details
Overview
TPS630252YFFR from Texas Instruments is a fixed-output 3.3 V, high-efficiency synchronous buck-boost DC/DC converter in a 20-pin DSBGA package. It delivers up to 2 A continuous output current with input voltage range 2.3–5.5 V, automatic buck/boost mode transition, and 2.5 MHz switching frequency-designed for compact battery-powered systems requiring stable rail generation across varying cell voltages.
For engineers reviewing the TPS630252YFFR datasheet, TPS630252YFFR pinout, TPS630252YFFR application, or TPS630252YFFR equivalent, key selection criteria include its fixed 3.3 V output, 35 µA quiescent current in PFM mode, integrated soft-start, true shutdown with output discharge, and thermal/over-current protection-critical for portable power management in space-constrained designs.
Technical Context
The TPS630252YFFR implements average current-mode control using four internal N-channel MOSFETs, enabling seamless buck-to-boost transition without discontinuity. Its dual-input architecture separates power (VIN, PGND) and control (VINA, GND) rails to minimize ground shift under high-switching currents.
Operation dynamically selects between buck (VIN > VOUT), boost (VIN < VOUT), or buck-boost boundary (VIN ≈ VOUT) modes based on real-time input/output ratio. The PFM/PWM pin enables forced PWM (2.5 MHz fixed frequency) or automatic light-load PFM mode, where regulation uses comparator-based hysteresis with ±1.3% dynamic voltage positioning.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 3.3 V ±1% (PWM mode), ±1.3% (PFM mode)-ensures stable logic rail for microcontrollers and peripherals. |
| Input Voltage Range | 2.3 V to 5.5 V-supports single-cell Li-ion (2.7–4.2 V), Li-polymer, or dual-cell alkaline/NiMH inputs. |
| Continuous Output Current | 2 A at VIN ≥ 2.5 V-enables direct powering of RF modules, displays, or USB peripherals without external LDOs. |
| Quiescent Current | 35 µA (typical, PFM mode)-extends battery runtime in always-on sensor nodes or standby states. |
| Switching Frequency | 2.5 MHz (typical, forced PWM)-permits use of small 1 µH inductors and ceramic capacitors for ultra-compact layouts. |
| Efficiency | Up to 97% at VIN = VOUT = 3.3 V-minimizes thermal dissipation in sealed enclosures or wearable devices. |
| Shutdown Current | 0.1 µA (typical)-prevents battery drain during system sleep or transport mode. |
| Soft-Start Time | 450 µs (buck), 700 µs (boost)-controls inrush current to avoid input rail collapse during cold start. |
Pinout & Package
TPS630252YFFR is housed in a 1.766 mm × 2.086 mm, 20-pin DSBGA (YFF) package with 0.4 mm pitch and bottom-side thermal pad. Pin mapping follows TI's standard YFF layout with dedicated power (VIN, VINA, L1, L2, VOUT, PGND), control (EN, PFM/PWM), feedback (FB), and reference (GND) terminals.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VIN | Power Input (High Current) | Supplies main power stage; accepts 2.3–5.5 V; connects to bulk input capacitor and battery anode. |
| VINA | Control Supply Input | Provides regulated bias for analog control circuitry; must be decoupled near GND to prevent noise coupling. |
| L1 / L2 | Inductor Connection Points | Connect opposite ends of single 1 µH inductor; L1 ties to VIN side, L2 to VOUT side-forms buck-boost power path. |
| VOUT | Regulated Output | Delivers fixed 3.3 V; requires ≥20 µF ceramic output capacitance (e.g., two 22 µF X5R in parallel) for stability. |
| FB | Feedback Reference | Internally tied to 0.8 V reference; not connected externally on TPS630252YFFR (fixed-output variant). |
| EN | Enable Control | Active-high logic input; drives high to enable converter, low to enter true shutdown with output discharge. |
| PFM/PWM | Mode Selection | Low = automatic PFM/PWM transition; high = forced 2.5 MHz PWM-used to suppress audible noise or ensure deterministic timing. |
| PGND | Power Ground | Return path for high-current switches and inductor; must be routed separately from analog GND and joined at single point near GND pin. |
| GND | Analog Ground | Reference for FB, EN, PFM/PWM, and internal error amplifier; connects to system ground plane with minimal impedance. |
Key Features
| Feature | Design Value |
|---|---|
| Automatic Buck-Boost Transition | Seamlessly switches between buck and boost topologies as VIN crosses VOUT-eliminates output voltage dip or mode-hopping artifacts during battery discharge. |
| Integrated Output Discharge | 120 Ω internal discharge path activates during shutdown-fully discharges 20 µF output cap to UVLO threshold (<10 ms) to prevent residual voltage hazards. |
| Thermal Shutdown with Hysteresis | Triggers at 140 °C junction temperature with 20 °C hysteresis-protects against sustained overload or poor PCB thermal design without oscillation. |
| True Shutdown Function | Disconnects load from input source and disables all internal circuitry-reduces system leakage to 0.1 µA, critical for long-term storage compliance. |
| Wide Capacitance Flexibility | Stable with 20–100 µF total output capacitance using standard X5R/X7R ceramics-simplifies BOM by avoiding specialized low-ESR polymer caps. |
Applications
| Smartphone Baseband Power | USB-C PD Sink Rail |
|---|---|
Use Scenario: Powers application processor I/O and memory interfaces in smartphones where battery voltage drops from 4.2 V (full) to 3.0 V (low). IC Role / Device Role / Timing Role: Primary buck-boost regulator generating clean 3.3 V rail; handles dynamic load steps up to 2 A with <100 µs response. Use Value: Maintains rail integrity across full battery discharge curve without requiring multiple discrete regulators or complex sequencing. | Use Scenario: Generates 3.3 V auxiliary rail in USB-C powered accessories (e.g., docks, adapters) accepting variable input from 3.3–5.5 V PD sources. IC Role / Device Role / Timing Role: Single-inductor buck-boost converter adapting wide-input PD voltage to fixed logic rail; supports hot-plug detection via EN pin control. Use Value: Eliminates need for pre-regulator + LDO cascade-reducing component count, board area, and no-load power loss by 40% vs traditional solutions. |
| Wearable Health Monitor | Industrial Handheld Scanner |
Use Scenario: Supplies 3.3 V to BLE SoC, optical sensors, and flash memory in coin-cell or thin-film battery-powered wearables operating at –40 °C to 85 °C. IC Role / Device Role / Timing Role: Ultra-low-IQ buck-boost regulator enabling multi-week battery life; operates in PFM mode at sub-1 mA loads with <35 µA quiescent draw. Use Value: Extends runtime by 2.3× versus comparable 100 µA-Q devices while maintaining 3.3 V accuracy within ±1.3% across temperature. | Use Scenario: Powers FPGA configuration, display driver, and barcode laser in ruggedized handheld scanners using 2-cell Li-ion packs (6–8.4 V nominal, stepped down via external buck). IC Role / Device Role / Timing Role: Secondary buck-boost stage regulating 3.3 V from intermediate 3.6–4.2 V rail; withstands 100 g mechanical shock per MIL-STD-810G. Use Value: Delivers 2 A peak current during laser pulse without rail collapse-enabled by 4 A switch current limit and low-RDS(on) FETs (25/35 mΩ). |
Equivalent & Alternatives
The following parts are listed as comparable options for similar buck-boost converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS630251YFFR | Fixed 2.9 V output; identical package, pinout, and electrical specs except VOUT and FB connection. | Suitable for lower-voltage I/O domains (e.g., certain LPDDR interfaces); requires redesign of downstream level-shifting or voltage-margining. | Select when system logic requires 2.9 V instead of 3.3 V-no layout change needed, but verify compatibility with load VIH/VIL thresholds. |
| MAX77827BEWL+T | Fixed 3.3 V output; 2.5–5.5 V input; 2 A max; but uses 16-pin WLP (2.13 × 2.13 mm) and lacks integrated output discharge. | Requires external discharge circuit for safe shutdown; higher 50 µA quiescent current limits ultra-low-power use cases. | Choose for legacy MAXIM-based designs or where TI supply chain constraints exist-verify thermal performance with RθJA = 82 °C/W vs TPS630252YFFR's 71.1 °C/W. |
Compared with TPS630252YFFR, TPS630251YFFR offers identical functionality at 2.9 V for voltage-sensitive loads, while MAX77827BEWL+T provides pin-compatible alternative with higher quiescent current and no integrated discharge-making TPS630252YFFR optimal for space-constrained, battery-critical 3.3 V applications demanding lowest IQ and robust shutdown behavior.
Availability
TPS630252YFFR is available at Aetrix Electronics and suitable for smartphone power management, wearable health monitors, USB-C accessory regulation, and industrial handheld scanner designs requiring stable component supply across extended product lifecycles.
Supply support for TPS630252YFFR 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 over 90 years of innovation in energy-efficient electronics.
The TPS63025x family was engineered for high-density portable power conversion-delivering single-inductor buck-boost capability with ultra-low quiescent current, seamless mode transition, and robust protection features tailored to battery-operated consumer and industrial systems.
FAQ
What is the maximum continuous output current of the TPS630252YFFR?
The TPS630252YFFR delivers up to 2 A continuous output current when VIN ≥ 2.5 V and VOUT = 3.3 V, as specified in the Electrical Characteristics table. This rating assumes proper thermal management using the DSBGA package's bottom thermal pad and adherence to recommended PCB layout guidelines for copper pour and via placement.
Does the TPS630252YFFR require external feedback resistors?
No, the TPS630252YFFR does not require external feedback resistors because it is the fixed 3.3 V output variant. The FB pin is internally connected to the 0.8 V reference and must be left unconnected-unlike the adjustable TPS630250, which requires an external resistor divider to set VOUT.
How does the PFM/PWM pin affect operation of the TPS630252YFFR?
When the PFM/PWM pin is pulled low, the TPS630252YFFR automatically transitions between PFM (light loads) and PWM (≥350 mA loads) to maximize efficiency. When pulled high, it forces fixed 2.5 MHz PWM operation-suppressing audible noise and ensuring deterministic switching timing at the cost of slightly higher light-load quiescent current.
What protection features are integrated into the TPS630252YFFR?
The TPS630252YFFR integrates over-temperature shutdown (140 °C trip, 20 °C hysteresis), cycle-by-cycle over-current limiting (4 A typical switch current limit), undervoltage lockout (1.7 V threshold), and true shutdown with active output capacitor discharge (120 Ω internal path). These features eliminate the need for external protection circuitry in most portable applications.
Can the TPS630252YFFR operate with a single 1 µH inductor?
Yes, the TPS630252YFFR is optimized for use with a single 1 µH inductor-such as Coilcraft XAL4020-102ME-as confirmed in the Typical Application section and Recommended Inductors table. This value balances ripple current, transient response, size, and efficiency across the full 2.3–5.5 V input range.
TPS630252YFFR 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:
- Fixed
- Number of Outputs:
- 1
- Voltage - Input (Min):
- 2.3V
- Voltage - Input (Max):
- 5.5V
- Voltage - Output (Min/Fixed):
- 3.3V
- Voltage - Output (Max):
- -
- Current - Output:
- 3.5A (Switch)
- 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
TPS630252YFFR FAQ
1.How can I place an order for TPS630252YFFR through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS630252YFFR 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 TPS630252YFFR reliable?
The price and inventory of TPS630252YFFR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS630252YFFR is usually 5 days.
3.What payment methods are accepted for TPS630252YFFR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS630252YFFR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS630252YFFR?
TPS630252YFFR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS630252YFFR 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 TPS630252YFFR?
For technical support, including TPS630252YFFR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS630252YFFR requirements.
6.How does Aetrix verify that TPS630252YFFR is sourced from the original manufacturer or authorized distributors?
All TPS630252YFFR 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 TPS630252YFFR meets industry standards.
7.What is the process for return or replacement of TPS630252YFFR?
All TPS630252YFFR units undergo pre-shipment inspection (PSI). If there is an issue with TPS630252YFFR, 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 TPS630252YFFR part is unused and in its original packaging.
Return procedure for TPS630252YFFR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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