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Texas Instruments TPS61253EYFFR
- Part No.:
- TPS61253EYFFR
- Manufacturer:
- Texas Instruments
- Package:
- 9-UFBGA, DSBGA
- Datasheet:
-
TPS61253EYFFR.pdf
- Description:
- IC REG BOOST 5.25V 1.5A 9DSBGA
- Quantity:
- Payment:
- Shipping:
Inventory:1,972
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Product details
Overview
TPS61253EYFFR from Texas Instruments is a synchronous boost converter optimized for Li-ion battery-powered portable electronics, delivering 5.25V fixed output at up to 1500mA continuous load with 2.5V–5.5V input range, 3.8MHz switching frequency, and 4.5A valley current limit. It enables compact USB charging ports and NFC power amplifiers where space and efficiency at light loads are critical.
For engineers reviewing the TPS61253EYFFR datasheet, TPS61253EYFFR pinout, TPS61253EYFFR application, or TPS61253EYFFR equivalent, key selection criteria include its 1.2mm × 1.3mm DSBGA package, 1.2V/1.8V logic-compatible EN/MODE pins, ultrasonic mode operation >25kHz, pass-through capability, and ±2% output voltage accuracy under varying load and temperature.
Technical Context
The TPS61253EYFFR employs valley-current-mode quasi-constant-on-time PWM control with integrated 35mΩ low-side and 60mΩ high-side N-MOSFETs, enabling stable regulation across 2.5V–5.5V input while supporting Auto PFM, forced PWM, and ultrasonic modes. Its soft-start circuit limits inrush current via pre-charge (1.5A DC limit) followed by 600µs linear ramp-up.
Pass-through mode activates when VIN exceeds VOUT + 0.1V, turning on the high-side FET fully to minimize conduction loss; hiccup-mode short protection (1ms on / 20ms off) and thermal shutdown (150°C trip, 130°C hysteresis) ensure robust fault handling without external components.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 5.25V ±2% - ensures stable USB-compliant 5V rail even with Li-ion discharge down to 2.5V input |
| Switching Frequency | 3.8MHz nominal (PWM), >25kHz (ultrasonic) - enables use of sub-1µH inductors and avoids audible noise in portable audio |
| Valley Current Limit | 4.5A - supports peak transient loads in NFC PA and fast-charging applications without foldback |
| Quiescent Current | 42µA from VIN - extends battery life in always-on standby states of smartphones and wearables |
| Startup Input Voltage | 2.6V (rising) - allows operation from deeply discharged Li-ion cells while maintaining 5.25V output |
| Logic Compatibility | EN/MODE support 1.2V I/O - interfaces directly with low-voltage application processors without level shifters |
| Thermal Protection | 150°C shutdown with 20°C hysteresis - prevents damage during sustained high-load operation in sealed enclosures |
Pinout & Package
TPS61253EYFFR uses a 9-pin DSBGA (YFF) package measuring 1.2mm × 1.3mm with 0.4mm pitch, optimized for ultra-thin mobile PCBs. Thermal performance is characterized by RθJA = 108.3°C/W and RθJB = 28.8°C/W.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| EN (B3) | Enable input | Active-high logic pin with internal 930kΩ pull-down; 0.9V threshold enables direct connection to 1.2V/1.8V GPIOs |
| GND (C1, C2) | Power ground | Dual ground pins reduce impedance and improve EMI performance in high-frequency switching |
| MODE (C3) | Operation mode select | Low = Auto PFM (efficiency-optimized), High = forced PWM (fixed frequency), Floating = ultrasonic (>25kHz) |
| SW (B1, B2) | Switch node | Drain of LS-FET/source of HS-FET; dual-pad layout lowers parasitic inductance for clean switching transitions |
| VIN (A3) | Input supply | Accepts 2.5V–5.5V; UVLO rising threshold at 2.5V ensures reliable startup from depleted batteries |
| VOUT (A1, A2) | Regulated output | 5.25V fixed; dual-pad configuration supports high-current routing and thermal dissipation |
Key Features
| Feature | Design Value |
|---|---|
| Ultrasonic mode | Maintains switching frequency >25kHz under all load conditions to eliminate audible coil whine in speakers and handsets |
| Pass-through operation | Automatically engages when VIN > VOUT + 0.1V, reducing dropout to <100mV and improving efficiency above 4.5V input |
| Load disconnection | Isolates VOUT from VIN during shutdown, limiting leakage to ≤1.3µA and preventing battery drain in powered-off state |
| Hiccup-mode short protection | Enters 1ms-on / 20ms-off cycle during output short, limiting average power dissipation and enabling self-recovery |
| Integrated soft-start | 600µs controlled ramp-up prevents inrush current into downstream capacitors, eliminating need for external timing components |
Applications
| Smartphones | USB Charging Ports |
|---|---|
Use Scenario: Powering camera flash ICs and RF front-end modules from single-cell Li-ion battery. IC Role / Device Role / Timing Role: Boost converter providing regulated 5.25V rail with dynamic load response to burst-mode flash pulses. Use Value: 4.5A valley current limit handles 2A+ flash current peaks; 3.8MHz switching minimizes footprint for tight camera module layouts. |
Use Scenario: Delivering 5V USB Power Delivery (PD) sink capability in portable battery packs and power banks. IC Role / Device Role / Timing Role: Primary boost stage generating stable 5.25V output from 3.0–4.2V battery range. Use Value: Pass-through mode improves efficiency above 4.5V input; ±2% output accuracy meets USB BC1.2 voltage tolerance requirements. |
| Portable Speakers | NFC Power Amplifier Supply |
Use Scenario: Supplying Class-D amplifier ICs requiring clean 5V rail with minimal acoustic noise. IC Role / Device Role / Timing Role: Ultra-compact boost regulator operating in ultrasonic mode to avoid audible switching artifacts. Use Value: >25kHz minimum switching frequency eliminates coil whine; 42µA quiescent current extends playback time between charges. |
Use Scenario: Providing precise 5.25V bias to NFC transmitter PA in contactless payment terminals and wearables. IC Role / Device Role / Timing Role: High-efficiency boost converter delivering stable output despite rapid battery voltage sag during transmission bursts. Use Value: 2.6V startup enables full NFC functionality even at 3.0V battery voltage; 1.2V logic compatibility simplifies host MCU interface. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar boost converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS61253FYFFR | Same 5V fixed output, 4.5A valley current limit, and 1.2V/1.8V logic support; differs only in output voltage (5.0V vs 5.25V) | Suitable for standard 5V USB peripheral rails but not NFC PA requiring tighter 5.25V compliance | Select TPS61253FYFFR when system requires exact 5.0V output and shares same board layout. |
| TPS61258AYFFR | 4.5V fixed output, 4A valley current limit, 2.5V–5.5V input, but only supports 1.8V logic I/O (not 1.2V) | Better suited for legacy 1.8V SoCs; lacks 1.2V MODE/EN compatibility required for newer ultra-low-power MCUs | Choose TPS61258AYFFR only if 4.5V output suffices and host processor lacks 1.2V GPIO capability. |
Compared with TPS61253FYFFR and TPS61258AYFFR, the TPS61253EYFFR uniquely delivers 5.25V output with 1.2V logic support-critical for NFC PA biasing and next-generation low-voltage application processors-while retaining identical 1.2mm × 1.3mm DSBGA footprint and thermal characteristics.
Availability
TPS61253EYFFR is available at Aetrix Electronics and suitable for smartphone power management, USB charging port design, and NFC-enabled wearable electronics requiring stable component supply and long-term production continuity.
Supply support for TPS61253EYFFR 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 ICs for portable and industrial applications.
The TPS61253x family was designed specifically for space-constrained, battery-powered consumer electronics requiring high-efficiency boost conversion, ultrasonic noise suppression, and seamless pass-through operation across wide input voltage ranges.
FAQ
What is the minimum input voltage required to start up the TPS61253EYFFR?
The TPS61253EYFFR requires a minimum input voltage of 2.5V (rising threshold) to initiate startup, as defined by its undervoltage lockout (UVLO) circuit. This allows reliable operation from Li-ion batteries discharged down to approximately 3.0V under load, ensuring full functionality even near end-of-discharge. The device remains active until VIN falls below 2.4V (falling threshold), providing hysteresis to prevent oscillation.
Does the TPS61253EYFFR support automatic transition between boost and pass-through modes?
Yes, the TPS61253EYFFR automatically enters pass-through mode when VIN exceeds VOUT + 0.1V and VOUT is above nominal regulation. In this mode, the high-side FET turns fully on and the low-side FET turns off, reducing conduction loss and improving efficiency. The transition is seamless and requires no external control-enabling optimal power delivery across the full 2.5V–5.5V input range.
What are the logic voltage requirements for the EN and MODE pins of the TPS61253EYFFR?
The TPS61253EYFFR EN pin has a logic-high threshold of 0.9V and MODE pin thresholds of 0.4V (low) and 1.2V (high), enabling direct interface with both 1.2V and 1.8V I/O domains. This eliminates the need for level shifters when connecting to modern ultra-low-power application processors and microcontrollers, simplifying system design and reducing BOM cost.
How does the ultrasonic mode function in the TPS61253EYFFR?
In ultrasonic mode (achieved by leaving MODE pin floating), the TPS61253EYFFR actively regulates switching frequency to remain above 25kHz under all load conditions-including no-load-to prevent audible coil whine. Output voltage rises to 101.6% of nominal (5.33V for 5.25V version), a known trade-off for noise elimination in audio-sensitive applications like portable speakers and handsets.
What protection features are integrated into the TPS61253EYFFR?
The TPS61253EYFFR integrates hiccup-mode short-circuit protection (1ms on / 20ms off cycling), thermal shutdown (150°C trip with 20°C hysteresis), input UVLO, and load disconnection during shutdown (≤1.3µA leakage). These features eliminate the need for external protection circuitry, reduce system-level failure risk, and enable robust operation in unattended portable devices.
TPS61253EYFFR 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):
- 5.5V
- Voltage - Output (Min/Fixed):
- 5.25V
- Voltage - Output (Max):
- -
- Current - Output:
- 1.5A
- Frequency - Switching:
- 3.8MHz
- Synchronous Rectifier:
- Yes
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 9-DSBGA
TPS61253EYFFR FAQ
1.How can I place an order for TPS61253EYFFR through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS61253EYFFR 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 TPS61253EYFFR reliable?
The price and inventory of TPS61253EYFFR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS61253EYFFR is usually 5 days.
3.What payment methods are accepted for TPS61253EYFFR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS61253EYFFR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS61253EYFFR?
TPS61253EYFFR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS61253EYFFR 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 TPS61253EYFFR?
For technical support, including TPS61253EYFFR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS61253EYFFR requirements.
6.How does Aetrix verify that TPS61253EYFFR is sourced from the original manufacturer or authorized distributors?
All TPS61253EYFFR 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 TPS61253EYFFR meets industry standards.
7.What is the process for return or replacement of TPS61253EYFFR?
All TPS61253EYFFR units undergo pre-shipment inspection (PSI). If there is an issue with TPS61253EYFFR, 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 TPS61253EYFFR part is unused and in its original packaging.
Return procedure for TPS61253EYFFR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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