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Texas Instruments TPS61259YFFR
- Part No.:
- TPS61259YFFR
- Manufacturer:
- Texas Instruments
- Package:
- 9-UFBGA, DSBGA
- Datasheet:
-
TPS61259YFFR.pdf
- Description:
- IC REG BOOST 5.1V 3.9A 9DSBGA
- Quantity:
- Payment:
- Shipping:
Inventory:1,389
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Product details
Overview
TPS61259YFFR from Texas Instruments is a 3.5-MHz synchronous step-up DC-DC converter in a 9-pin NanoFree™ DSBGA package, delivering up to 1500 mA peak output current at 5.1 V with input as low as 2.65 V. It features ±2% DC output voltage accuracy, 93% peak efficiency, and supports VIN ≥ VOUT operation for battery-powered portable systems.
For engineers reviewing the TPS61259YFFR datasheet, TPS61259YFFR pinout, TPS61259YFFR application, or TPS61259YFFR equivalent, key selection criteria include its 5.1-V fixed output, 21-µA standby quiescent current, true load disconnect during shutdown, light-load PFM mode, and compact <25 mm² total solution size using only three external components.
Technical Context
The TPS61259YFFR employs quasi-constant on-time valley current mode control for stable PWM operation across line and load variations, transitioning automatically to PFM at light loads to maintain high efficiency down to 0.1 mA. Its integrated dual MOSFET power stage includes a 170-mΩ high-side and 100-mΩ low-side switch, enabling efficient boost conversion from Li-ion battery voltages (2.65–4.85 V) to a regulated 5.1-V rail.
Two functional modes are controlled via the BP pin: true shutdown (BP = GND, ISD < 5 µA) and standby pre-bias mode (BP = VIN, IOUT ≤ 150 mA, IQ = 21 µA typ). The device integrates thermal shutdown (140°C), overcurrent protection (3.9 A valley limit), and under-voltage lockout (2.1 V threshold with 0.1 V hysteresis).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 5.1 V with ±2% total DC accuracy over temperature and load - ensures stable USB-compliant 5-V rail generation without external feedback. |
| Peak Output Current | 1500 mA at VOUT = 5.1 V, VIN ≥ 3.3 V - supports pulsed high-current loads like camera flash or audio amplifiers. |
| Input Voltage Range | 2.65 V to 4.85 V - enables direct use with single-cell Li-ion batteries across full discharge curve. |
| Switching Frequency | 3.5 MHz nominal - allows use of ultra-small 1-µH inductors and minimizes EMI filtering requirements. |
| Quiescent Current | 21 µA in standby mode (BP = VIN), 37 µA in normal PFM operation - extends battery life in always-on portable devices. |
| Shutdown Current | <5.0 µA (typ 0.85 µA) - ensures minimal battery drain when system is powered off. |
| Package | 9-pin DSBGA (YFF), 1.206 mm × 1.306 mm - ultra-compact footprint ideal for space-constrained mobile PCBs. |
Pinout & Package
TPS61259YFFR uses a 9-pin NanoFree™ DSBGA (YFF) package with 0.4-mm pitch, measuring 1.206 mm × 1.306 mm. The die-side-down construction provides minimal thermal resistance (RθJA = 108.3°C/W) and optimal board-level heat dissipation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| BP (C3) | Mode select / bypass control | Determines shutdown behavior: GND = true load disconnect; VIN = standby pre-biased mode (150 mA max, 21 µA IQ). |
| EN (B3) | Enable input | Active-high logic control; must be terminated - floating EN causes undefined operation and potential shoot-through. |
| GND (C1, C2) | Power ground | Dual ground pins reduce impedance and improve thermal performance; both must be connected to solid ground plane. |
| SW (B1, B2) | Power switch node | Connects to internal high/low-side MOSFET drains; requires short, low-inductance trace to inductor for EMI and efficiency. |
| VIN (A3) | Input supply | Accepts 2.65–4.85 V; requires local 4.7-µF ceramic capacitor placed adjacent to pin for transient response. |
| VOUT (A1, A2) | Regulated output | Delivers fixed 5.1 V; requires ≥10-µF output capacitance (X5R/X7R) for ripple suppression and stability. |
Key Features
| Feature | Design Value |
|---|---|
| Light-load PFM mode | Maintains >85% efficiency at 0.1 mA load by reducing switching frequency - critical for standby power in IoT sensors. |
| True load disconnect | Isolates VOUT from VIN during shutdown (EN = GND, BP = GND) - prevents back-powering and leakage into powered-down subsystems. |
| Integrated 170-mΩ/100-mΩ MOSFETs | Eliminates need for external power switches; enables 1500 mA peak output with minimal conduction loss and thermal rise. |
| Only three external components | Requires just one 1-µH inductor, one 4.7-µF input cap, and one 10-µF output cap - reduces BOM count and layout area to <25 mm². |
| Thermal and overload protection | Auto-recovering thermal shutdown (140°C) and cycle-by-cycle valley current limiting (3.9 A) ensure robust operation under fault conditions. |
Applications
| Smartphone Power Management | USB Charging Port Regulation |
|---|---|
|
Use Scenario: Boosting discharged Li-ion battery (2.7–4.2 V) to stable 5.1 V for USB OTG peripherals or accessory charging. IC Role / Device Role / Timing Role: Primary step-up regulator supplying regulated 5.1-V rail with fast transient response and low quiescent current. Use Value: Enables USB host functionality even at battery voltages below 3.3 V, extending usable runtime by >15% versus fixed 5-V solutions. |
Use Scenario: Providing compliant 5-V output from variable battery input in portable power banks or wireless chargers. IC Role / Device Role / Timing Role: High-efficiency boost converter with ±2% output accuracy meeting USB BC1.2 voltage tolerance. Use Value: Delivers up to 1500 mA peak current at 5.1 V with <50 mV ripple, supporting multi-port simultaneous charging without derating. |
| Audio Amplifier Bias Supply | Low-Power Sensor Node Boost |
|
Use Scenario: Powering mono/stereo Class-D or Class-AB audio amplifiers requiring clean, pre-biased 5.1-V supply. IC Role / Device Role / Timing Role: Standby-mode regulator (BP = VIN) delivering up to 150 mA at 21 µA IQ while maintaining VOUT ≈ VIN. Use Value: Reduces amplifier turn-on delay and eliminates pop/click noise by pre-charging output capacitor before enable. |
Use Scenario: Generating stable 5.1-V rail for ultra-low-power microcontrollers and RF transceivers in battery-operated sensor nodes. IC Role / Device Role / Timing Role: Efficient boost converter operating in PFM mode down to 0.1 mA load, minimizing sleep-mode current draw. Use Value: Achieves >90% efficiency at 100 µA load, extending 10-year battery life in LPWAN edge devices. |
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 | Fixed 4.5-V output; same 1500 mA peak capability and 3.5-MHz operation but lower output voltage. | Suitable for 4.5-V USB peripheral rails or legacy audio ICs requiring 4.5 V, not 5.1 V. | Select when system requires 4.5 V output and higher light-load efficiency at sub-100 mA loads. |
| TPS612592YFFR | Fixed 5.2-V output; identical package, pinout, and electrical specs except +0.1 V output and slightly higher min input (2.7 V). | Used where tighter 5.2-V regulation is needed for specific PMIC or analog front-end biasing. | Choose for designs requiring 5.2 V with identical layout and thermal profile - no PCB changes required. |
Compared with TPS61258YFFR and TPS612592YFFR, the TPS61259YFFR uniquely delivers 5.1-V output with 2.65-V minimum input, making it optimal for deep-discharge Li-ion applications where 5.2-V margin is excessive and 4.5-V is insufficient for USB compliance.
Availability
TPS61259YFFR is available at Aetrix Electronics and suitable for smartphone power management, USB charging port regulation, audio amplifier bias supply, and low-power sensor node boost applications requiring stable component supply, long-term lifecycle support, and consistent parametric performance.
Supply support for TPS61259YFFR 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 company specializing in analog, embedded processing, and power management technologies, with decades of leadership in high-efficiency DC-DC conversion.
The TPS6125x family was designed specifically for space-constrained, battery-powered portable electronics requiring ultra-small boost converters with high peak current capability and ultra-low quiescent current.
FAQ
What is the exact output voltage tolerance of the TPS61259YFFR?
The TPS61259YFFR provides a fixed 5.1-V output with ±2% total DC voltage accuracy over temperature (–40°C to 85°C), line (VIN = 3.4–4.85 V), and load (0–1500 mA pulsed) conditions. This specification is verified per TI's SLVSAG8G datasheet Section 7.5, ensuring reliable USB-compliant operation without external trimming.
Does the TPS61259YFFR support true load disconnect during shutdown?
Yes - when EN = GND and BP = GND, the TPS61259YFFR fully disconnects VOUT from VIN via internal NMOS switch, limiting shutdown current to <5 µA (typ 0.85 µA). This prevents back-powering of upstream circuits and is confirmed in the Pin Functions table and Electrical Characteristics section of the datasheet.
What is the minimum input voltage required for full 1500 mA peak output from the TPS61259YFFR?
The TPS61259YFFR requires VIN ≥ 3.3 V to deliver its rated 1500 mA peak output current at VOUT = 5.1 V, as specified in the Device Options table and validated in Figure 12 (Maximum Output Current vs Input Voltage) of the SLVSAG8G datasheet.
Can the TPS61259YFFR operate with input voltage equal to or lower than its output voltage?
Yes - the TPS61259YFFR supports VIN ≥ VOUT operation, meaning it functions as a boost converter even when input voltage equals or slightly exceeds 5.1 V (e.g., during battery charging). In this mode, it enters linear pre-charge operation with 150 mA current limit and 21 µA quiescent current, as detailed in Section 9.4 Device Functional Modes.
What external components are mandatory for basic TPS61259YFFR operation?
The TPS61259YFFR requires exactly three external components: a 1-µH shielded inductor (L), a 4.7-µF X5R/X7R ceramic input capacitor (CIN), and a 10-µF X5R/X7R ceramic output capacitor (COUT). These values are validated in the Typical Application schematic (Figure 10) and Table 7.3 Recommended Operating Conditions.
TPS61259YFFR 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):
- 5.1V
- 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
TPS61259YFFR FAQ
1.How can I place an order for TPS61259YFFR through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS61259YFFR 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 TPS61259YFFR reliable?
The price and inventory of TPS61259YFFR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS61259YFFR is usually 5 days.
3.What payment methods are accepted for TPS61259YFFR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS61259YFFR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS61259YFFR?
TPS61259YFFR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS61259YFFR 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 TPS61259YFFR?
For technical support, including TPS61259YFFR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS61259YFFR requirements.
6.How does Aetrix verify that TPS61259YFFR is sourced from the original manufacturer or authorized distributors?
All TPS61259YFFR 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 TPS61259YFFR meets industry standards.
7.What is the process for return or replacement of TPS61259YFFR?
All TPS61259YFFR units undergo pre-shipment inspection (PSI). If there is an issue with TPS61259YFFR, 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 TPS61259YFFR part is unused and in its original packaging.
Return procedure for TPS61259YFFR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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