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Texas Instruments TPS61253YFFT
- Part No.:
- TPS61253YFFT
- Manufacturer:
- Texas Instruments
- Package:
- 9-UFBGA, DSBGA
- Datasheet:
-
TPS61253YFFT.pdf
- Description:
- IC REG BOOST 5V 3.9A 9DSBGA
- Quantity:
- Payment:
- Shipping:
Inventory:770
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Product details
Overview
TPS61253YFFT from Texas Instruments is a synchronous step-up DC-DC converter in a 9-pin NanoFree™ DSBGA package, delivering regulated 5.0 V output with ±2% DC accuracy, supporting up to 1500 mA peak load at VIN ≥ 3.3 V and operating at 3.5 MHz switching frequency. It enables compact USB charging ports and battery-powered audio amplifiers by maintaining efficiency up to 93% while drawing only 21 µA quiescent current in standby mode.
For engineers reviewing the TPS61253YFFT datasheet, TPS61253YFFT pinout, TPS61253YFFT application, or TPS61253YFFT equivalent, key selection criteria include its 5.0 V fixed output, 2.65–4.85 V input range, true load disconnect during shutdown, light-load PFM mode, and minimal external component count (only three surface-mount parts required) for sub-25 mm² solution size.
Technical Context
The TPS61253YFFT implements valley-current-mode control with quasi-constant on-time PWM operation above ~10 mA load, transitioning to PFM below that threshold to sustain high efficiency across wide load ranges. Its internal synchronous rectifier supports VIN ≥ VOUT operation and enables pre-biased output mode via BP pin control.
It integrates dual MOSFETs (170 mΩ high-side, 100 mΩ low-side), thermal shutdown (140°C), overcurrent protection (3.3–3.9 A valley limit), and under-voltage lockout (2.1 V nominal with 0.1 V hysteresis), all within a 1.206 mm × 1.306 mm chip-scale package optimized for space-constrained portable designs.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 5.0 V ±2% DC accuracy ensures stable USB-compliant power delivery without external feedback components. |
| Input Voltage Range | 2.65 V to 4.85 V supports single-cell Li-ion batteries down to near depletion, enabling extended runtime in portable devices. |
| Peak Output Current | 1500 mA at VIN ≥ 3.3 V allows driving high-pulse loads like flash LEDs or Class-D audio amplifiers without voltage sag. |
| Switching Frequency | 3.5 MHz enables use of ultra-small 1 µH inductors and ceramic capacitors, reducing solution footprint to <25 mm². |
| Quiescent Current | 21 µA in standby mode (EN = GND, BP = VIN) maximizes battery life during system sleep states. |
| Efficiency | 93% at 3.5 MHz operation minimizes thermal dissipation and extends battery life in continuous boost applications. |
| Shutdown Current | <5.0 µA ensures negligible battery drain when disabled, critical for always-on portable systems. |
Pinout & Package
TPS61253YFFT uses a 9-pin DSBGA (NanoFree™) package measuring 1.206 mm × 1.306 mm with 0.4 mm pitch. The package is bottom-soldered with no exposed pad.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| BP (C3) | Mode selection | When EN = Low: BP = Low → true shutdown; BP = High → standby mode with 150 mA pre-biased output and 21 µA IQ. |
| EN (B3) | Enable control | Active-high logic input; must be terminated-floating state is undefined and may cause erratic behavior. |
| GND (C1, C2) | Power ground | Dual ground pins reduce impedance and improve thermal performance; both must be connected to PCB ground plane. |
| SW (B1, B2) | Power switch node | Internal high/low-side MOSFET connection point; requires low-inductance routing to minimize EMI and switching losses. |
| VIN (A3) | Input supply | Accepts 2.65–4.85 V; requires local 4.7 µF ceramic capacitor placed adjacent to pin for stability. |
| VOUT (A1, A2) | Regulated output | Delivers 5.0 V; requires 10 µF output capacitor (e.g., 0603 X5R) close to device for ripple suppression. |
Key Features
| Feature | Design Value |
|---|---|
| Light-load PFM mode | Maintains >85% efficiency at 1 mA load by reducing switching frequency, extending battery life in idle/sleep states. |
| Selectable standby mode | Enables 150 mA pre-biased output with 21 µA IQ-ideal for biasing audio amplifiers without full regulation overhead. |
| True load disconnect | Internally isolates VOUT from VIN during shutdown (EN = Low, BP = Low), preventing backfeed and leakage into powered-down circuits. |
| Thermal & overload protection | Auto-recovering thermal shutdown (140°C) and cycle-by-cycle valley current limiting prevent damage under fault conditions. |
| Minimal external components | Requires only one inductor (1 µH), one input cap (4.7 µF), and one output cap (10 µF)-no compensation network needed. |
Applications
| Cell Phone Power Management | USB Charging Port Supply |
|---|---|
Use Scenario: Boosting depleted Li-ion battery (2.65 V) to stable 5.0 V for USB OTG or accessory charging. IC Role / Device Role / Timing Role: Primary step-up regulator providing regulated 5 V rail with fast transient response to pulsed loads. Use Value: Enables USB compliance down to 2.65 V input, eliminating need for higher-voltage battery packs or complex charge management. | Use Scenario: Delivering 5 V/1 A to USB Type-A ports in portable power banks or docking stations. IC Role / Device Role / Timing Role: Fixed-output boost converter with integrated current limiting and thermal protection for unattended operation. Use Value: Supports 1500 mA peak loading for short bursts (e.g., device enumeration), ensuring robust port compliance without external current sensing. |
| Smartphone Audio Amplifier Bias | Low-Power IoT Sensor Node |
Use Scenario: Providing pre-biased 5 V supply to mono/stereo Class-D amplifier during system standby. IC Role / Device Role / Timing Role: Standby-mode regulator with 150 mA capability and 21 µA quiescent current, activated via BP pin. Use Value: Eliminates separate LDO for amplifier bias, reducing BOM count and enabling instant audio wake-up from deep sleep. | Use Scenario: Powering BLE/Wi-Fi MCU and sensors from coin cell or small Li-ion in wearables or remote sensors. IC Role / Device Role / Timing Role: Ultra-low-IQ boost converter supplying regulated 5 V to mixed-signal peripherals during intermittent active periods. Use Value: Achieves >90% efficiency at 100 µA–10 mA loads, directly extending battery life beyond what linear regulators can provide. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar step-up converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS61258YFFT | Same 4.5 V fixed output, 1500 mA peak capability, but lower 4.4–4.65 V output range; identical package and pinout. | Optimized for 4.5 V systems (e.g., legacy USB 2.0 peripherals), not 5.0 V USB-C or modern audio ICs requiring exact 5 V. | Select TPS61258YFFT only if target load accepts 4.5 V ±3% and benefits from same efficiency profile at lower VOUT. |
| TPS610987DSER | Lower 3.3 V output, 1.8–4.5 V input, 400 mA max, 200 nA shutdown current-but uses 6-pin WSON, not CSP. | Suitable for ultra-low-power microcontrollers and sensors, not high-current USB/audio applications. | Choose TPS610987DSER when sub-1 µA shutdown and 3.3 V rail are required, accepting reduced output current and different package layout. |
Compared with TPS61258YFFT and TPS610987DSER, the TPS61253YFFT uniquely delivers 5.0 V ±2% at up to 1500 mA peak in a 1.2 mm × 1.3 mm CSP, making it the only option among the three for compact, high-fidelity 5 V USB or audio power rails.
Availability
TPS61253YFFT is available at Aetrix Electronics and suitable for cell phone power management, USB charging ports, smartphone audio amplifier bias, and low-power IoT sensor node applications requiring stable component supply, long-term lifecycle support, and consistent parametric performance across production batches.
Supply support for TPS61253YFFT 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 TPS6125x product line was engineered specifically for space-constrained, battery-powered portable electronics-delivering high-efficiency, fixed-output boost conversion with minimal external components and ultra-low quiescent current.
FAQ
What is the maximum continuous output current supported by the TPS61253YFFT?
The TPS61253YFFT supports up to 1000 mA continuous output current at VOUT = 5.0 V when VIN ≥ 3.3 V, per the datasheet's recommended operating conditions. Peak current capability reaches 1500 mA for pulsed loads ≤20 ms with ≤10% duty cycle, enabling short-duration high-power events like camera flash or audio transients without regulation loss.
Does the TPS61253YFFT require an external feedback resistor network?
No, the TPS61253YFFT does not require an external feedback resistor network because it features a factory-trimmed, fixed 5.0 V output. The internal reference and error amplifier are fully integrated, eliminating external components and ensuring ±2% DC output accuracy across temperature and load without calibration.
How does the BP pin function in the TPS61253YFFT?
The BP pin on the TPS61253YFFT controls functional mode when EN = Low: BP = Low enables true shutdown with <5 µA input current and complete load disconnect; BP = High activates standby mode, biasing VOUT at VIN level with up to 150 mA sourcing capability and only 21 µA quiescent current-ideal for pre-biasing audio amplifiers.
What is the minimum input voltage required for the TPS61253YFFT to start switching?
The TPS61253YFFT begins switching when VIN rises above its under-voltage lockout (UVLO) threshold of 2.1 V (typical, with 0.1 V hysteresis). However, reliable 5.0 V regulation with 1000 mA load requires VIN ≥ 3.3 V; operation below that voltage sustains regulation only at reduced output current per the datasheet's IOUT vs VIN curves.
Can the TPS61253YFFT be used with input voltages higher than its rated 4.85 V maximum?
No, the TPS61253YFFT has an absolute maximum VIN rating of 7 V, but its recommended operating maximum is 4.85 V. Exceeding 4.85 V violates the validated operating conditions and risks degraded efficiency, increased thermal stress, and potential long-term reliability issues-even if below the 7 V absolute limit. Always adhere to the 4.85 V max for production designs.
TPS61253YFFT 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:
- 3.9A (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
TPS61253YFFT FAQ
1.How can I place an order for TPS61253YFFT through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS61253YFFT 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 TPS61253YFFT reliable?
The price and inventory of TPS61253YFFT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS61253YFFT is usually 5 days.
3.What payment methods are accepted for TPS61253YFFT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS61253YFFT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS61253YFFT?
TPS61253YFFT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS61253YFFT 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 TPS61253YFFT?
For technical support, including TPS61253YFFT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS61253YFFT requirements.
6.How does Aetrix verify that TPS61253YFFT is sourced from the original manufacturer or authorized distributors?
All TPS61253YFFT 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 TPS61253YFFT meets industry standards.
7.What is the process for return or replacement of TPS61253YFFT?
All TPS61253YFFT units undergo pre-shipment inspection (PSI). If there is an issue with TPS61253YFFT, 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 TPS61253YFFT part is unused and in its original packaging.
Return procedure for TPS61253YFFT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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