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Texas Instruments TPS61253AYFFR
- Part No.:
- TPS61253AYFFR
- Manufacturer:
- Texas Instruments
- Package:
- 9-UFBGA, DSBGA
- Datasheet:
-
TPS61253AYFFR.pdf
- Description:
- IC REG BOOST 5V 3.3A 9DSBGA
- Quantity:
- Payment:
- Shipping:
Inventory:6,946
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Product details
Overview
TPS61253AYFFR from Texas Instruments is a synchronous boost converter IC designed for Li-ion battery-powered portable systems, delivering fixed 5V output at up to 1500mA continuous load from ≥3V input, with 4A switching valley current limit, 3.8MHz switching frequency, and ±2% output voltage accuracy-used in USB charging ports and NFC PA supply.
For engineers reviewing the TPS61253AYFFR datasheet, TPS61253AYFFR pinout, TPS61253AYFFR application, or TPS61253AYFFR equivalent, key selection factors include its 1.2mm × 1.3mm DSBGA package, Auto PFM/Forced PWM/Ultrasonic mode flexibility, 42µA quiescent current, pass-through operation capability, and integrated 35mΩ LS-FET / 60mΩ HS-FET.
Technical Context
The TPS61253AYFFR employs valley-current-mode control with quasi-constant on-time PWM for stable line/load regulation across 2.3V–5.5V input. Its architecture supports seamless transition between true boost and pass-through modes when VIN exceeds VOUT + 0.1V, minimizing dropout loss.
Three configurable operating modes-Auto PFM (light-load efficiency), Forced PWM (fixed 3.8MHz frequency), and Ultrasonic (≥25kHz switching to suppress audible noise)-are selected via the MODE pin's logic state (Low/High/Floating), each directly affecting output voltage regulation tolerance (100.8%, 100%, or 101.6% of nominal).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 5.0V ±2% - ensures stable USB-compliant power delivery without external feedback resistors. |
| Switching Frequency | 3.8MHz (PWM mode) - enables use of ultra-small 0.33–1.3µH inductors and compact ceramic capacitors. |
| Switching Current Limit | 4A valley current limit - supports robust 1500mA continuous output at 5V with ≥3V input. |
| Quiescent Current | 42µA from VIN - extends battery runtime in standby and low-power states. |
| Input Voltage Range | 2.3V to 5.5V - fully covers discharged-to-full Li-ion battery range (2.7V–4.2V typical). |
| Soft-Start Time | 600µs - prevents inrush current during power-up, protecting input source and output capacitance. |
| Thermal Shutdown | 150°C rising threshold with 20°C hysteresis - provides reliable overtemperature protection in compact layouts. |
Pinout & Package
TPS61253AYFFR uses a 9-pin DSBGA (YFF) package measuring 1.2mm × 1.3mm with 0.4mm pitch, optimized for space-constrained mobile applications.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| EN (B3) | Enable input | Active-high logic control; internal 930kΩ pull-down ensures default shutdown; 0.9V threshold enables 1.2V I/O compatibility. |
| GND (C1, C2) | Power ground | Dual ground pins reduce impedance and improve thermal dissipation in high-current paths. |
| MODE (C3) | Operating mode select | Low = Auto PFM, High = Forced PWM, Floating = Ultrasonic mode; sets switching behavior and output regulation point. |
| SW (B1, B2) | Switch node | Shared drain-source connection of internal 35mΩ LS-FET and 60mΩ HS-FET; requires careful layout for EMI and thermal management. |
| VIN (A3) | Input power supply | Accepts 2.3V–5.5V; includes UVLO (2.3V rising) to prevent erratic operation during battery brownout. |
| VOUT (A1, A2) | Regulated output | Delivers fixed 5V; dual pins lower current density and parasitic inductance for stable 1500mA delivery. |
Key Features
| Feature | Design Value |
|---|---|
| Pass-through mode support | Enables direct conduction when VIN > VOUT + 0.1V, reducing conduction loss and improving efficiency above ~3.8V input. |
| Hiccup-mode short protection | Enters 1ms-on / 20ms-off recovery cycle during output short, limiting average power dissipation and enabling auto-recovery. |
| Load disconnection during shutdown | Isolates VOUT from VIN with ≤1.3µA shutdown current, preventing battery drain in system off-state. |
| Ultrasonic mode operation | Maintains switching frequency >25kHz under all loads, eliminating audible coil whine in audio-sensitive devices like portable speakers. |
| Integrated power FETs | 35mΩ LS-FET and 60mΩ HS-FET eliminate external MOSFETs and gate drivers, reducing BOM count and PCB area. |
Applications
| USB Charging Port Power Supply | NFC Power Amplifier Supply |
|---|---|
Use Scenario: Providing regulated 5V power to USB Type-A or Type-C downstream ports in smartphones or power banks. IC Role / Device Role / Timing Role: Primary boost regulator converting single-cell Li-ion voltage (2.7–4.2V) to stable 5V USB PD-compliant output. Use Value: Delivers 1500mA continuously with 42µA quiescent current, enabling fast charging while preserving standby battery life. |
Use Scenario: Supplying clean, low-noise 5V bias to NFC transmitter power amplifiers in contactless payment terminals. IC Role / Device Role / Timing Role: High-efficiency DC-DC converter operating in Ultrasonic mode to avoid audible interference during RF transmission. Use Value: 3.8MHz switching and integrated FETs minimize EMI coupling into sensitive NFC antenna circuits. |
| Smartphone Main System Rail | Portable Speaker Audio Subsystem |
Use Scenario: Generating auxiliary 5V rail for camera modules, sensors, or display backlight drivers in modern smartphones. IC Role / Device Role / Timing Role: Compact synchronous boost IC supporting pass-through mode to reduce voltage drop when battery voltage approaches 5V. Use Value: 1.2mm × 1.3mm DSBGA footprint saves critical board space; ±2% output accuracy ensures consistent peripheral performance. |
Use Scenario: Powering Class-D amplifier stages and DSP subsystems in Bluetooth-enabled portable speakers. IC Role / Device Role / Timing Role: Efficient boost converter operating in Auto PFM mode during idle/low-volume playback to maximize battery runtime. Use Value: 4A current limit and 600µs soft-start prevent pop/click artifacts during power-on and sustain peak audio transients. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar boost converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS61253F | Same 5V output and 4.5A valley current limit, but supports 1.2V logic I/O on EN/MODE pins (vs. 1.8V-only on TPS61253AYFFR). | Required where host SoC uses 1.2V GPIOs; otherwise functionally identical in 5V boost applications. | Select TPS61253F only if 1.2V-compatible control signaling is needed; otherwise TPS61253AYFFR offers full feature parity at same package size. |
| TPS61258A | 4.5V fixed output (not 5V), 4A valley current limit, same 3.8MHz frequency and DSBGA-9 package. | Suitable for 4.5V rails (e.g., certain PMIC inputs or legacy USB requirements), not direct replacement for 5V use cases. | Choose TPS61258A only when 4.5V output is explicitly required; TPS61253AYFFR remains optimal for standard 5V USB/NFC applications. |
Compared with TPS61253F and TPS61258A, the TPS61253AYFFR provides the exact 5V output and 1.8V logic compatibility needed for mainstream smartphone and accessory designs, without requiring layout changes or firmware updates-making it the most direct fit for 5V boost applications with conventional I/O voltage levels.
Availability
TPS61253AYFFR is available at Aetrix Electronics and suitable for USB charging ports, NFC power amplifier supplies, and smartphone auxiliary rail generation requiring stable component supply, high-volume manufacturability, and long-term lifecycle support.
Supply support for TPS61253AYFFR 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 and embedded processing technologies, with decades of expertise in power management IC design and high-volume manufacturing.
The TPS61253x family was engineered specifically for space-constrained, battery-powered portable electronics-delivering high-efficiency boost conversion in sub-1.5mm² WCSP packages with intelligent mode control and robust protection features.
FAQ
What is the output voltage accuracy of the TPS61253AYFFR?
The TPS61253AYFFR delivers a fixed 5.0V output with ±2% accuracy across temperature and load conditions. This specification ensures reliable compliance with USB 2.0/3.0 bus power requirements and stable operation of downstream peripherals without external trimming components. The accuracy is maintained by internal precision reference and feedback circuitry, verified per TI's SLVSDE4F datasheet Section 6.5.
Does the TPS61253AYFFR support automatic pass-through operation?
Yes, the TPS61253AYFFR automatically enters pass-through mode when VIN exceeds VOUT + 0.1V and VOUT is above nominal regulation. In this state, the high-side FET fully turns on and the low-side FET turns off, allowing near-lossless conduction-reducing dropout and improving efficiency during high-input-voltage conditions common in partially charged Li-ion batteries.
What are the logic voltage requirements for the EN and MODE pins on the TPS61253AYFFR?
The TPS61253AYFFR EN pin requires ≥0.9V to enable (logic high threshold), compatible with 1.2V and 1.8V I/O systems. The MODE pin interprets <0.4V as Low (Auto PFM), >1.2V as High (Forced PWM), and floating (~0.8V) as Ultrasonic mode. These thresholds are specified in Section 6.5 of the SLVSDE4F datasheet and validated across –40°C to 125°C junction temperature.
How does the TPS61253AYFFR protect against output short-circuits?
The TPS61253AYFFR uses hiccup-mode short-circuit protection: upon detecting ~6A inductor current, it cycles 1ms active conduction (with 1.5A DC startup limit) followed by 20ms shutdown. This limits average power dissipation and junction temperature rise, enabling safe auto-recovery once the fault clears-verified in Section 7.3.4 and Figure 7-2 of the official datasheet.
Can the TPS61253AYFFR operate efficiently at very light loads?
Yes-the TPS61253AYFFR achieves high light-load efficiency via Auto PFM mode, where switching frequency decreases dynamically to maintain regulation while minimizing switching losses. At 100µA load, typical efficiency exceeds 70% (Figure 6-1), enabled by 42µA quiescent current and valley-current modulation-making it ideal for always-on sensor or NFC wake-up circuits.
TPS61253AYFFR 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):
- 2.65V
- Voltage - Input (Max):
- 4.85V
- Voltage - Output (Min/Fixed):
- 5V
- Voltage - Output (Max):
- -
- Current - Output:
- 3.3A (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
TPS61253AYFFR FAQ
1.How can I place an order for TPS61253AYFFR through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS61253AYFFR 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 TPS61253AYFFR reliable?
The price and inventory of TPS61253AYFFR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS61253AYFFR is usually 5 days.
3.What payment methods are accepted for TPS61253AYFFR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS61253AYFFR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS61253AYFFR?
TPS61253AYFFR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS61253AYFFR 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 TPS61253AYFFR?
For technical support, including TPS61253AYFFR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS61253AYFFR requirements.
6.How does Aetrix verify that TPS61253AYFFR is sourced from the original manufacturer or authorized distributors?
All TPS61253AYFFR 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 TPS61253AYFFR meets industry standards.
7.What is the process for return or replacement of TPS61253AYFFR?
All TPS61253AYFFR units undergo pre-shipment inspection (PSI). If there is an issue with TPS61253AYFFR, 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 TPS61253AYFFR part is unused and in its original packaging.
Return procedure for TPS61253AYFFR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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