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Texas Instruments TPS650231YFFR
- Part No.:
- TPS650231YFFR
- Manufacturer:
- Texas Instruments
- Category:
- Battery Management
- Package:
- 49-UFBGA, DSBGA
- Datasheet:
-
TPS650231YFFR.pdf
- Description:
- IC BAT PWR MGT LI-ION 1C 49DSBGA
- Quantity:
- Payment:
- Shipping:
Inventory:9,000
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Product details
Overview
TPS650231YFFR from Texas Instruments is a highly integrated power management IC (PMIC) for single-cell Li-Ion/Li-Polymer powered systems, delivering three synchronous step-down converters (1.7-A DCDC1, 1.2-A DCDC2, 0.8-A DCDC3), two 200-mA LDOs, and a 30-mA RTC LDO with battery backup switching. It supports dynamic voltage scaling via I²C and operates across –40°C to +85°C in a 49-ball DSBGA package.
For engineers reviewing the TPS650231YFFR datasheet, TPS650231YFFR pinout, TPS650231YFFR application, or TPS650231YFFR equivalent, key selection criteria include its triple-buck architecture with independent enables, preselectable LDO voltages via DEFLDO1/DEFLDO2 pins, 85-μA quiescent current in PFM mode, and integrated power-fail/low-battery monitoring with programmable reset delay.
Technical Context
The TPS650231YFFR integrates three independent buck regulators sharing a common input rail (VINDCDC13/VINDCDC2), each with dedicated switch pins (L1/L2/L3), power grounds (PGND1/PGND2/PGND3), and feedback inputs (VDCDC1/VDCDC2/VDCDC3). Its I²C interface (SCLK/SDAT) supports dynamic voltage scaling for DCDC1 and configurable interrupt masking.
It features dual 200-mA LDOs with digitally selectable default outputs (via DEFLDO1/DEFLDO2), a dedicated RTC LDO (VRTC) with automatic switchover between VSYSIN and VBACKUP, and system-level supervision including open-drain RESPWRON with 100-ms delay set by external capacitor on TRESPWRON.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| DCDC1 Output Current | 1.7 A - sufficient for processor core rails in smart phones and MIDs |
| DCDC2 Efficiency | Up to 95% - minimizes thermal load for system I/O/memory domains |
| LDO1/LDO2 Max Current | 200 mA each - supports peripherals like audio codecs or sensors |
| I²C Interface Speed | 400 kHz - compatible with fast-mode I²C for real-time voltage reconfiguration |
| Quiescent Current (PFM) | 85 μA - extends battery life during light-load standby states |
| Operating Temperature | –40°C to +85°C - qualified for industrial and portable consumer environments |
| Package | 49-ball DSBGA (YFF), 3.0 mm × 3.0 mm - ultra-compact footprint for space-constrained designs |
Pinout & Package
TPS650231YFFR uses a 49-ball DSBGA (YFF) package with 0.4-mm pitch, optimized for low-profile portable applications. Pin assignment follows TI's standard YFF layout with multiple ground balls (AGND, PGND1/2/3) and distributed power/ground ball clusters for EMI control and thermal dissipation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| DCDC1_EN (F5) | Enable control for VDCDC1 buck converter | Active-high logic; allows independent sequencing of processor core supply |
| VINDCDC13 (A3,A4,B4,C4) | Shared input for DCDC1 and DCDC3 | Reduces external component count by consolidating input rails |
| L1 (A5,B5,C5) | Switch node for DCDC1 | Connects directly to inductor; requires low-inductance layout to minimize switching losses |
| DEFDCDC1 (D5) | Default voltage select for DCDC1 | Logic level sets fixed output: 0 = 1.2 V, 1 = 1.6 V - enables boot-time configuration without I²C |
| VLDO1 (G7) | Output of first general-purpose LDO | Digitally preset voltage (1.05–3.3 V range); supports noise-sensitive analog circuitry |
| TRESPWRON (G4) | Reset timing capacitor connection | 1-nF to GND sets 100-ms active-low RESPWRON pulse - eliminates need for external timer IC |
Key Features
| Feature | Design Value |
|---|---|
| Triple synchronous buck architecture | Enables independent power domain control for core, I/O, and memory rails in SoC-based systems |
| Dual 200-mA LDOs with digital voltage selection | Four preset output combinations via DEFLDO1/DEFLDO2 - simplifies BOM and eliminates external resistor networks |
| RTC LDO with automatic backup switchover | Seamless transition between VSYSIN and VBACKUP supplies ensures continuous RTC operation during main power loss |
| Integrated power-fail and low-battery comparators | PWRFAIL_SNS and LOWBAT_SNS inputs provide early warning of battery depletion without external components |
| Low-ripple PFM mode | Maintains high efficiency (<90%) at light loads while minimizing output voltage ripple for sensitive analog circuits |
Applications
| Smartphone Power Management | Netbook/MID System Power |
|---|---|
Use Scenario: Single-cell Li-Po powered handheld device requiring sequenced, low-noise power for application processor, display interface, and baseband subsystems. IC Role / Device Role: Central PMIC providing three regulated rails (core, I/O, memory), dual LDOs for peripherals, and RTC backup with battery monitoring. Use Value: Reduces bill-of-materials by integrating 3 buck converters, 3 LDOs, and supervision functions into one 3×3-mm package. | Use Scenario: Portable computing platform needing efficient, dynamically scalable power for CPU, DDR memory, and USB/PCIe I/O interfaces. IC Role / Device Role: Primary power controller enabling dynamic voltage scaling of DCDC1 via I²C to match CPU performance states. Use Value: Achieves >95% efficiency at full load on DCDC2 (system rail), extending runtime without thermal throttling. |
| Portable Media Player | Industrial Handheld Terminal |
Use Scenario: Battery-powered audio/video player requiring clean, low-noise supplies for DACs, amplifiers, and touch controller. IC Role / Device Role: Multi-rail regulator supplying 1.2-V core, 3.3-V I/O, and 1.8-V memory, plus LDOs for analog audio paths. Use Value: Low-ripple PFM mode maintains <10-mVpp output noise at light loads - critical for high-fidelity audio playback. | Use Scenario: Ruggedized field device operating across –40°C to +85°C with battery backup for real-time clock and data logging. IC Role / Device Role: Robust power manager delivering stable rails under wide input variation and enabling fail-safe shutdown via PWRFAIL/LOWBAT signals. Use Value: Integrated thermal shutdown (160°C) and UVLO (2.35 V) ensure reliable operation in unregulated battery environments. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar power management IC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS650230YFFR | Omits VRTC LDO and backup switchover functionality; no VBACKUP pin | Suitable only where RTC backup is not required; lower cost but reduced feature set | Select when system uses external RTC or does not require battery-backed timekeeping |
| TPS65910A3ZCHT | Higher integration: includes ADC, GPIOs, and additional LDOs; 6-mm × 6-mm VQFN package | Better suited for complex SoC platforms needing system monitoring and programmable I/O | Choose for next-generation designs requiring enhanced system control beyond basic power regulation |
Compared with TPS650231YFFR, TPS650230YFFR reduces cost by removing RTC backup capability, while TPS65910A3ZCHT expands functionality at the expense of larger footprint and higher complexity - making TPS650231YFFR optimal for cost-sensitive, space-constrained Li-ion devices needing integrated RTC support.
Availability
TPS650231YFFR is available at Aetrix Electronics and suitable for smartphone, netbook/MID, and portable media player designs requiring stable component supply, long-term lifecycle support, and guaranteed traceable sourcing for production programs.
Supply support for TPS650231YFFR 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 battery-powered system solutions.
The TPS6502x product line was designed specifically for Li-ion/Li-polymer powered portable electronics, emphasizing high efficiency, small footprint, and integrated system supervision to reduce design complexity and BOM count.
FAQ
What is the primary function of the TPS650231YFFR in a portable system?
The TPS650231YFFR serves as a complete power management IC for single-cell Li-ion systems, integrating three high-efficiency buck converters (1.7-A, 1.2-A, 0.8-A), two 200-mA LDOs, a 30-mA RTC LDO with automatic backup switchover, and system supervision functions. Its role is to generate and manage all critical voltage rails while minimizing external components and maximizing battery runtime - a core requirement in smartphones and MIDs where the TPS650231YFFR replaces multiple discrete regulators.
How does the TPS650231YFFR support dynamic voltage scaling for processor cores?
The TPS650231YFFR supports dynamic voltage scaling for the processor core (VDCDC1) via its I²C-compatible serial interface, allowing real-time adjustment of output voltage during operation to match CPU performance states. Additionally, the DEFDCDC1 pin provides hardware-selectable fixed outputs (1.2 V or 1.6 V) at boot, enabling immediate core voltage configuration without firmware initialization. This dual-mode flexibility ensures both rapid startup and adaptive power management in the TPS650231YFFR.
What is the purpose of the TRESPWRON pin on the TPS650231YFFR?
The TRESPWRON pin on the TPS650231YFFR sets the duration of the active-low RESPWRON reset signal using an external capacitor to ground. A 1-nF capacitor yields a nominal 100-ms pulse, providing a precise, programmable system reset timing without requiring external timing ICs or RC networks. This feature ensures reliable processor reboot or wake-up sequencing in applications such as smartphones and portable media players where deterministic reset behavior is essential - a key differentiator of the TPS650231YFFR.
Can the TPS650231YFFR operate with input voltages below 3.0 V?
Yes, the TPS650231YFFR supports input voltages as low as 2.5 V on its VINDCDC1/VINDCDC2/VINDCDC3 and VCC pins, enabling operation through deep battery discharge down to ~3.0 V nominal cell voltage. Its internal UVLO threshold is 2.35 V with 120-mV hysteresis, ensuring stable startup and shutdown behavior across the full Li-ion discharge curve. This capability is explicitly validated in the datasheet's Recommended Operating Conditions and makes the TPS650231YFFR suitable for battery-powered applications requiring extended runtime - a critical specification for the TPS650231YFFR.
How are the LDO output voltages configured on the TPS650231YFFR?
The TPS650231YFFR provides two 200-mA LDOs (VLDO1 and VLDO2) whose default output voltages are set by the logic states of DEFLDO1 and DEFLDO2 pins, offering four preset combinations (e.g., 1.05 V / 1.2 V, 1.8 V / 2.8 V, etc.). These defaults can be overridden via I²C commands for dynamic reconfiguration. The LDOs accept input voltages from 1.5 V to 6.5 V and maintain ±2% output accuracy over load and temperature - a flexible, software-configurable power solution built into the TPS650231YFFR.
TPS650231YFFR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 49-UFBGA, DSBGA
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Function:
- Power Management
- Battery Chemistry:
- Lithium Ion/Polymer
- Number of Cells:
- 1
- Fault Protection:
- Over Temperature
- Interface:
- I2C
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 49-DSBGA (2.8x2.8)
TPS650231YFFR FAQ
1.How can I place an order for TPS650231YFFR through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS650231YFFR 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 TPS650231YFFR reliable?
The price and inventory of TPS650231YFFR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS650231YFFR is usually 5 days.
3.What payment methods are accepted for TPS650231YFFR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS650231YFFR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS650231YFFR?
TPS650231YFFR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS650231YFFR 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 TPS650231YFFR?
For technical support, including TPS650231YFFR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS650231YFFR requirements.
6.How does Aetrix verify that TPS650231YFFR is sourced from the original manufacturer or authorized distributors?
All TPS650231YFFR 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 TPS650231YFFR meets industry standards.
7.What is the process for return or replacement of TPS650231YFFR?
All TPS650231YFFR units undergo pre-shipment inspection (PSI). If there is an issue with TPS650231YFFR, 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 TPS650231YFFR part is unused and in its original packaging.
Return procedure for TPS650231YFFR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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