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Texas Instruments TPS61254YFFR
- Part No.:
- TPS61254YFFR
- Manufacturer:
- Texas Instruments
- Package:
- 9-UFBGA, DSBGA
- Datasheet:
-
TPS61254YFFR.pdf
- Description:
- IC REG BOOST 4.5V 2.4A 9DSBGA
- Quantity:
- Payment:
- Shipping:
Inventory:2,935
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Product details
Overview
TPS61254YFFR from Texas Instruments is a 4.5-V fixed-output, synchronous step-up DC-DC converter in a 9-pin DSBGA package, delivering up to 800 mA continuous output current at VIN ≥ 2.65 V, operating at 3.5 MHz with 93% peak efficiency and ±2% DC voltage accuracy. It enables compact USB charging ports and audio power supplies in space-constrained smartphones.
For engineers reviewing the TPS61254YFFR datasheet, TPS61254YFFR pinout, TPS61254YFFR application, or TPS61254YFFR equivalent, key selection criteria include its 4.5-V regulated output, 21-µA standby quiescent current, true load disconnect during shutdown, 2.5–4.35-V input range, and NanoFree™ CSP footprint for ultra-small PCB area.
Technical Context
The TPS61254YFFR uses quasi-constant on-time valley current mode control to maintain stable regulation across line and load variations while enabling PFM operation at light loads. Its integrated high-side (170 mΩ) and low-side (100 mΩ) MOSFETs support synchronous rectification and pre-charge linear mode when BP is high.
It features three functional modes: boost operation (EN = high, BP = low), standby mode with output pre-biased to VIN (EN = low, BP = high, 150 mA max), and true shutdown (EN = low, BP = low, <1 µA IQ). Thermal shutdown activates at 140°C with 20°C hysteresis.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 4.5 V ±2% DC accuracy over load/temperature - ensures stable bias for USB 5V-compliant peripherals via LDO post-regulation or direct powering of 4.5V-tolerant ICs. |
| Input Voltage Range | 2.5 V to 4.35 V - supports single-cell Li-ion batteries down to 2.65 V cutoff and enables operation across full discharge curve without brownout. |
| Max Continuous Output Current | 800 mA at VOUT = 4.5 V, VIN ≥ 2.65 V - sufficient for dual-channel Class D audio amplifiers or dual-port USB charging circuits. |
| Switching Frequency | 3.5 MHz nominal - allows use of sub-1-µH inductors and 10–22-µF ceramic output capacitors, reducing solution size to <25 mm². |
| Quiescent Current | 21 µA in standby mode (EN = low, BP = high) - extends battery life in always-on audio subsystems or sensor wake-up circuits. |
| Shutdown Current | 0.85–5.0 µA - minimizes leakage in powered-off states, critical for long-term storage or low-power IoT endpoints. |
| Valley Current Limit | 1900–2400 mA - sets robust short-circuit protection threshold while permitting 1500 mA pulsed peaks for transient audio demand. |
Pinout & Package
TPS61254YFFR is housed in a 1.206 mm × 1.306 mm, 9-pin NanoFree™ DSBGA (YFF) package with bottom-side solder balls. The die pad is not electrically connected; thermal dissipation relies on PCB copper area under the package.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| BP (C3) | Mode select / bypass control | When EN = low: BP = high enables standby mode (VOUT ≈ VIN, 150 mA limit); BP = low enables true shutdown (load disconnected). |
| EN (B3) | Enable input | Active-high logic; must be pulled to VIN or GND - floating state is prohibited. Controls entry into boost, standby, or shutdown modes. |
| GND (C1, C2) | Power ground | Dual ground pins reduce impedance and improve thermal conduction; both must be connected to solid PCB ground plane. |
| SW (B1, B2) | Switch node | Connects to external inductor; carries high di/dt switching current - requires tight layout with minimal trace length and adjacent ground pour. |
| VIN (A3) | Input power supply | Accepts 2.5–4.35 V; requires local 4.7-µF ceramic input capacitor placed within 2 mm of VIN and GND pins. |
| VOUT (A1, A2) | Regulated output | Delivers 4.5 V; requires 10–22-µF X5R/X7R ceramic output capacitor; dual pins reduce IR drop and ESR impact. |
Key Features
| Feature | Design Value |
|---|---|
| Light-load PFM mode | Reduces quiescent current to 37 µA (typ) below ~10 mA load - extends battery runtime in idle or background-sensing states. |
| Selectable standby vs shutdown | BP pin allows system-level choice between low-IQ pre-biased output (for fast wake-up) or complete load isolation (for zero leakage). |
| Synchronous rectification | Integrated 100-mΩ NMOS and 170-mΩ PMOS switches eliminate external Schottky loss - enables >90% efficiency at 100 mA. |
| Total solution size < 25 mm² | Requires only one 1-µH inductor and two ceramic caps - fits within smartphone camera module or earbud PCB real estate constraints. |
| ±2% total DC voltage accuracy | Includes line/load/temperature drift - eliminates need for external feedback trimming in cost-sensitive consumer designs. |
Applications
| Smartphone USB Charging Port | Mobile Audio Power Supply |
|---|---|
Use Scenario: Providing regulated 4.5 V to dual-lane USB Type-C port in compact handset design with shared battery rail. IC Role / Device Role / Timing Role: Primary boost regulator supplying clean, stable voltage to USB PD sink controller and port power switches. Use Value: Enables native 4.5 V charging without external LDO, reducing BOM count and thermal load while supporting 800 mA sustained current per port. |
Use Scenario: Powering mono/stereo Class D audio amplifier ICs in Bluetooth earbuds where battery voltage drops below 3.3 V. IC Role / Device Role / Timing Role: High-efficiency voltage booster maintaining amplifier headroom during deep battery discharge (down to 2.65 V). Use Value: Delivers consistent audio output power and THD+N performance across full battery cycle, avoiding volume compression or clipping. |
| Low-Power Always-On Sensor Hub | Wearable Health Monitor Power Rail |
Use Scenario: Supplying 4.5 V to always-on motion sensor fusion processor and BLE radio in fitness tracker with multi-week battery life. IC Role / Device Role / Timing Role: Ultra-low-IQ boost converter operating in PFM mode during sleep, transitioning to PWM only during sensor readout bursts. Use Value: Achieves 21 µA standby current and 37 µA light-load IQ - directly extends battery life by >15% versus conventional boosters. |
Use Scenario: Generating stable 4.5 V rail for optical heart-rate sensor (PPG) and analog front-end in wrist-worn medical device. IC Role / Device Role / Timing Role: Low-noise, high-PSRR power source minimizing switching artifacts in sensitive analog signal chain. Use Value: 20 mVpp PWM ripple and 45 mVpk PFM ripple ensure clean ADC sampling and accurate photodiode current measurement. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar step-up converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS61258YFFR | Same 4.5-V output but rated for 1500 mA peak (vs 800 mA continuous for TPS61254YFFR); higher valley current limit (3300–3900 mA). | Targeted at pulsed-load applications like flash LED drivers or burst-mode RF transceivers requiring short-duration high current. | Choose TPS61258YFFR if peak current demands exceed 800 mA; otherwise TPS61254YFFR offers better light-load efficiency and lower cost. |
| MT9700-45 | 4.5-V fixed-output boost with 1.2-MHz switching frequency, 750 mA max, and 25 µA quiescent current - no standby mode or BP pin. | Lacks programmable standby/shutdown; designed for simpler, lower-cost portable electronics without advanced power sequencing. | Select MT9700-45 only for cost-driven designs where BP-controlled standby and 3.5-MHz size advantage are unnecessary. |
Compared with TPS61258YFFR and MT9700-45, TPS61254YFFR uniquely balances 800 mA continuous delivery, 21 µA standby IQ, and NanoFree™ footprint - making it optimal for space- and battery-life-constrained audio and USB subsystems where peak pulses are infrequent.
Availability
TPS61254YFFR is available at Aetrix Electronics and suitable for smartphone USB charging ports, mobile audio power supplies, low-power sensor hubs, wearable health monitors, and compact industrial handhelds requiring stable component supply and rapid prototyping support.
Supply support for TPS61254YFFR 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 TPS6125x family was engineered specifically for ultra-compact, battery-powered portable devices - prioritizing minimal solution size, low quiescent current, and seamless integration with Li-ion battery discharge profiles.
FAQ
What is the maximum continuous output current specification for TPS61254YFFR?
The TPS61254YFFR delivers up to 800 mA continuous output current at VOUT = 4.5 V when input voltage is ≥2.65 V. This rating is validated across –40°C to 85°C ambient temperature and accounts for thermal derating on standard 2-layer PCBs with 1-in² copper pour. Peak current capability reaches 1500 mA for ≤20-ms pulses at ≤10% duty cycle.
Does TPS61254YFFR support true load disconnect during shutdown?
Yes - when EN is pulled low and BP is also low, the TPS61254YFFR fully disconnects the load from VIN via internal MOSFET control, achieving <1 µA shutdown current. This prevents battery drain in off-state systems such as medical wearables or security sensors requiring multi-year shelf life.
What package type and dimensions does TPS61254YFFR use?
TPS61254YFFR uses a 9-pin NanoFree™ DSBGA (YFF) package measuring 1.206 mm × 1.306 mm with 0.4-mm ball pitch. The package has no exposed thermal pad; thermal performance relies on solder-ball-to-PCB conduction and surrounding copper area. It is RoHS-compliant and halogen-free.
How does the BP pin function in TPS61254YFFR?
The BP pin on TPS61254YFFR selects between two low-power states when EN = low: BP = high enables standby mode (VOUT biased to VIN with 150 mA current limit and 21 µA IQ), while BP = low activates true shutdown (load disconnected, <1 µA IQ). BP must never float and requires explicit termination.
What is the recommended minimum output capacitance for stable operation of TPS61254YFFR?
TI specifies a minimum output capacitance of 10 µF for TPS61254YFFR, using X5R or X7R ceramic dielectrics in 0603 or larger case sizes. A 22-µF/10-V 1210-size capacitor (e.g., Murata GRM32ER71A226K) is preferred for improved ripple suppression and transient response, especially in audio applications.
TPS61254YFFR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 9-UFBGA, DSBGA
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Function:
- Step-Up
- Output Configuration:
- Positive
- Topology:
- Boost
- Output Type:
- Fixed
- Number of Outputs:
- 1
- Voltage - Input (Min):
- 2.5V
- Voltage - Input (Max):
- 4.35V
- Voltage - Output (Min/Fixed):
- 4.5V
- Voltage - Output (Max):
- -
- Current - Output:
- 2.4A (Switch)
- Frequency - Switching:
- 3.5MHz
- Synchronous Rectifier:
- Yes
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 9-DSBGA
TPS61254YFFR FAQ
1.How can I place an order for TPS61254YFFR through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS61254YFFR 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 TPS61254YFFR reliable?
The price and inventory of TPS61254YFFR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS61254YFFR is usually 5 days.
3.What payment methods are accepted for TPS61254YFFR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS61254YFFR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS61254YFFR?
TPS61254YFFR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS61254YFFR 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 TPS61254YFFR?
For technical support, including TPS61254YFFR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS61254YFFR requirements.
6.How does Aetrix verify that TPS61254YFFR is sourced from the original manufacturer or authorized distributors?
All TPS61254YFFR 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 TPS61254YFFR meets industry standards.
7.What is the process for return or replacement of TPS61254YFFR?
All TPS61254YFFR units undergo pre-shipment inspection (PSI). If there is an issue with TPS61254YFFR, 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 TPS61254YFFR part is unused and in its original packaging.
Return procedure for TPS61254YFFR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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