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Texas Instruments TPS61253AYFFT
- Part No.:
- TPS61253AYFFT
- Manufacturer:
- Texas Instruments
- Package:
- 9-UFBGA, DSBGA
- Datasheet:
-
TPS61253AYFFT.pdf
- Description:
- IC REG BOOST 5V 4.6A 9DSBGA
- Quantity:
- Payment:
- Shipping:
Inventory:415
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Product details
Overview
TPS61253AYFFT 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 with 2.3V–5.5V input range, 3.8MHz switching frequency, and integrated 35mΩ LS-FET / 60mΩ HS-FET in a 1.2mm × 1.3mm DSBGA package - used in smartphone power rails and USB charging ports.
For engineers reviewing the TPS61253AYFFT datasheet, TPS61253AYFFT pinout, TPS61253AYFFT application, or TPS61253AYFFT equivalent, this page delivers verified electrical specs, mode-selectable operation (Auto PFM/Forced PWM/Ultrasonic), pass-through capability, ±2% VOUT accuracy, and thermal/hiccup protection - all confirmed for the YFFT package variant.
Technical Context
The TPS61253AYFFT implements valley-current-mode control with quasi-constant on-time PWM for stable regulation across line/load variations. Its architecture integrates dual N-MOSFETs, internal soft-start (600µs), and dynamic mode selection via the MODE pin - enabling Auto PFM for light-load efficiency, Forced PWM for EMI-controlled constant frequency, or Ultrasonic mode (>25kHz) to eliminate audible noise.
It supports seamless transition into pass-through mode when VIN exceeds VOUT + 0.1V, reducing conduction loss by fully turning on the high-side FET. Protection includes hiccup-mode short-circuit response (1ms on / 20ms off), thermal shutdown (150°C rising), and load disconnection during shutdown (<1.3µA quiescent).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 5.0V ±2% - ensures stable USB-compliant rail without external feedback resistors. |
| Input Voltage Range | 2.3V to 5.5V - supports full Li-ion discharge curve (3.0V–4.2V) plus USB OTG or backup supply headroom. |
| Switching Frequency | 3.8MHz nominal (PWM mode) - enables use of sub-1µH inductors and compact ceramic output capacitors. |
| Switch Current Limit | 4A valley current limit - sustains ≥1500mA output at 5V with ≥3V input under typical conditions. |
| Quiescent Current | 42µA from VIN - minimizes battery drain in standby, critical for always-on mobile peripherals. |
| Package | DSBGA-9 (YFFT), 1.2mm × 1.3mm - ultra-small footprint for space-constrained PCBs in smartphones and wearables. |
| Protection Features | Hiccup-mode short circuit, thermal shutdown (150°C), UVLO (2.3V rising), and load disconnection - ensures robust field reliability. |
Pinout & Package
TPS61253AYFFT uses a 9-pin DSBGA (YFFT) package measuring 1.2mm × 1.3mm with bottom-side solder balls. Pin assignment follows TI's standard top-view layout for DSBGA-9.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| EN (B3) | Enable input | Active-high logic: >1.2V enables device; internal 930kΩ pull-down ensures default shutdown. |
| GND (C1, C2) | Power ground | Dual ground pins reduce impedance and improve thermal dissipation in high-current paths. |
| MODE (C3) | Operation mode select | Low = Auto PFM; High = Forced PWM; Floating = Ultrasonic mode (>25kHz). |
| SW (B1, B2) | Switch node | Shared drain-source connection of internal LS-FET and HS-FET - requires low-inductance layout to minimize ringing. |
| VIN (A3) | Input power supply | Accepts 2.3V–5.5V; connects to input capacitor and battery/analog rail with minimal trace inductance. |
| VOUT (A1, A2) | Regulated output | Delivers fixed 5V; dual pins reduce IR drop and support high-frequency decoupling near load. |
Key Features
| Feature | Design Value |
|---|---|
| Three selectable operating modes | Auto PFM (light-load efficiency), Forced PWM (EMI control), Ultrasonic (>25kHz) - configurable via single MODE pin voltage. |
| Pass-through functionality | Automatic transition when VIN > VOUT + 0.1V - eliminates switching loss and improves efficiency at high input voltages. |
| Integrated power FETs | 35mΩ LS-FET + 60mΩ HS-FET - eliminates external MOSFETs and gate drivers, reducing BOM count and board area. |
| 600µs internal soft-start | Linear pre-charge + controlled ramp-up - prevents inrush current and stabilizes output during enable sequence. |
| Load disconnection in shutdown | <1.3µA shutdown current with full isolation - prevents battery drain when system is powered off. |
Applications
| Smartphone Power Rail | USB Charging Port |
|---|---|
|
Use Scenario: Boosting single-cell Li-ion (2.8V–4.2V) to stable 5V for USB OTG host or camera flash driver. IC Role / Device Role / Timing Role: Primary DC-DC step-up regulator providing regulated 5V rail with fast transient response and low-noise operation. Use Value: Enables direct USB peripheral connectivity from battery without external LDO or charge pump; 3.8MHz switching allows <1µH inductor size. |
Use Scenario: Supplying 5V to Type-A or Type-C downstream ports in portable power banks or docking stations. IC Role / Device Role / Timing Role: High-efficiency boost converter supporting up to 1500mA continuous output with hiccup-mode short protection. Use Value: Delivers USB-IF compliant 5V ±5% under varying input (2.3V–5.5V); pass-through mode extends runtime when input >5.1V. |
| Portable Speaker Audio PA | NFC Transmitter Supply |
|
Use Scenario: Powering Class-D audio amplifier in Bluetooth speakers where battery voltage drops below 3.3V during playback. IC Role / Device Role / Timing Role: Compact boost stage ensuring consistent 5V supply to amplifier IC despite deep battery discharge. Use Value: Maintains full audio output power down to 2.3V input; ultrasonic mode eliminates coil whine during low-volume playback. |
Use Scenario: Generating clean 5V rail for NFC controller and antenna driver in contactless payment terminals or wearables. IC Role / Device Role / Timing Role: Low-noise, fast-response boost converter supplying NFC PA with tight voltage regulation and low EMI. Use Value: ±2% output accuracy ensures reliable NFC field generation; Forced PWM mode provides predictable EMI profile for certification. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar boost converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS61253FYFFT | Same 5V output and 1.2mm×1.3mm DSBGA package, but 4.5A valley current limit and 1.2V/0.36V EN thresholds - supports 1.2V I/O logic. | Preferred where system MCU uses 1.2V GPIO or higher current margin is required beyond 1500mA. | Select TPS61253FYFFT if 1.2V-compatible enable logic or extended current headroom is needed; otherwise TPS61253AYFFT offers optimal cost/performance for standard 1.8V logic systems. |
| TPS61258AYFFT | 4.5V fixed output, 4A valley current limit, same package - optimized for lower-voltage USB PD sink or 4.5V logic rails. | Used where 4.5V output is required (e.g., specific PMIC inputs or legacy 4.5V peripherals), not 5V. | Choose TPS61258AYFFT only when 4.5V output is mandatory; TPS61253AYFFT is the correct fit for 5V USB, NFC, and smartphone applications. |
Compared with TPS61253FYFFT, the TPS61253AYFFT provides tighter EN threshold compatibility with 1.8V systems and slightly lower current limit - making it ideal for cost-sensitive 5V boost applications without 1.2V I/O requirements. Against TPS61258AYFFT, it delivers the exact 5V output needed for USB compliance, avoiding under-voltage risk in host-mode operation.
Availability
TPS61253AYFFT is available at Aetrix Electronics and suitable for smartphone power rails, USB charging ports, and portable speaker audio amplifiers requiring stable component supply, long-term lifecycle support, and guaranteed authentic sourcing.
Supply support for TPS61253AYFFT 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 TPS61253x family was engineered for ultra-compact, high-frequency boost conversion in battery-powered portable electronics - prioritizing small solution size, low quiescent current, and multi-mode efficiency optimization.
FAQ
What is the output voltage tolerance of the TPS61253AYFFT?
The TPS61253AYFFT provides a fixed 5.0V output with ±2% accuracy over temperature and load. This specification is guaranteed across –40°C to 125°C junction temperature and 0mA–1500mA output current, ensuring reliable USB-compliant operation without external trimming components.
Does the TPS61253AYFFT support automatic pass-through mode?
Yes, the TPS61253AYFFT 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 input-to-output conduction with only RDS(ON) and inductor DCR losses - improving efficiency at high input voltages.
What are the EN pin logic thresholds for the TPS61253AYFFT?
The TPS61253AYFFT EN pin requires a minimum of 1.2V to assert enable (VEN_H) and releases shutdown below 0.4V (VEN_L). An internal 930kΩ pull-down resistor ensures default disable state, simplifying interface with 1.8V GPIOs without external level-shifting.
How does the MODE pin configure operating modes on the TPS61253AYFFT?
The MODE pin on the TPS61253AYFFT selects three distinct behaviors: pulled low (<0.4V) enables Auto PFM for peak light-load efficiency; driven high (>1.2V) forces constant 3.8MHz PWM; left floating (0.75–0.85V) activates Ultrasonic mode to maintain >25kHz switching and eliminate audible noise.
What protection features are integrated into the TPS61253AYFFT?
The TPS61253AYFFT integrates hiccup-mode short-circuit protection (1ms on / 20ms off), thermal shutdown (150°C rising, 130°C hysteresis), undervoltage lockout (2.3V rising), and load disconnection during shutdown (<1.3µA). These ensure safe operation under fault conditions and prevent battery drain in standby.
TPS61253AYFFT 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):
- 2.3V
- Voltage - Input (Max):
- 5.5V
- Voltage - Output (Min/Fixed):
- 5V
- Voltage - Output (Max):
- -
- Current - Output:
- 4.6A (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
TPS61253AYFFT FAQ
1.How can I place an order for TPS61253AYFFT through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS61253AYFFT 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 TPS61253AYFFT reliable?
The price and inventory of TPS61253AYFFT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS61253AYFFT is usually 5 days.
3.What payment methods are accepted for TPS61253AYFFT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS61253AYFFT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS61253AYFFT?
TPS61253AYFFT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS61253AYFFT 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 TPS61253AYFFT?
For technical support, including TPS61253AYFFT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS61253AYFFT requirements.
6.How does Aetrix verify that TPS61253AYFFT is sourced from the original manufacturer or authorized distributors?
All TPS61253AYFFT 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 TPS61253AYFFT meets industry standards.
7.What is the process for return or replacement of TPS61253AYFFT?
All TPS61253AYFFT units undergo pre-shipment inspection (PSI). If there is an issue with TPS61253AYFFT, 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 TPS61253AYFFT part is unused and in its original packaging.
Return procedure for TPS61253AYFFT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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