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Texas Instruments TPS650231YFFT
- Part No.:
- TPS650231YFFT
- Manufacturer:
- Texas Instruments
- Category:
- Battery Management
- Package:
- 49-UFBGA, DSBGA
- Datasheet:
-
TPS650231YFFT.pdf
- Description:
- IC BAT PWR MGT LI-ION 1C 49DSBGA
- Quantity:
- Payment:
- Shipping:
Inventory:3,355
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Product details
Overview
TPS650231YFFT from Texas Instruments is a highly integrated power management IC (PMIC) for single-cell Li-Ion/Li-Polymer powered portable systems. It delivers three synchronous step-down converters (1.7-A DCDC1, 1.2-A DCDC2, 0.8-A DCDC3), two 200-mA LDOs, a 30-mA RTC LDO/switch, dynamic voltage scaling via I²C, and battery backup functionality - all in a 49-ball DSBGA package.
For engineers reviewing the TPS650231YFFT datasheet, TPS650231YFFT pinout, TPS650231YFFT application, or TPS650231YFFT equivalent, this page provides verified technical context, validated pin functions, confirmed operating parameters across –40°C to +85°C, and real-world implementation guidance for smart phone, netbook, and portable media player power architectures.
Technical Context
The TPS650231YFFT integrates three independent buck converters with separate enable pins (DCDC1_EN, DCDC2_EN, DCDC3_EN), each supporting adjustable output voltages via external resistor dividers or digital DEF pins. Its I²C interface (up to 400 kHz) enables dynamic voltage scaling of DCDC1 and programmable control of LDO outputs, interrupts, and reset timing.
It features dual 200-mA LDOs with digitally selectable default voltages (via DEFLDO1/DEFLDO2), a dedicated 30-mA VRTC rail with automatic system/backup battery switchover, and comprehensive monitoring including PWRFAIL, LOWBAT, and HOT_RESET with configurable reset delay (TRESPWRON).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| DCDC1 Output Current | 1.7 A - supports high-current processor core rails with minimal thermal derating |
| DCDC2 Efficiency | Up to 95% - minimizes power loss in system I/O or memory supply paths |
| LDO1/LDO2 Output Current | 200 mA each - powers peripherals such as sensors, audio codecs, or USB PHYs |
| I²C Interface Speed | 400 kHz Fast Mode - enables rapid voltage transitions during DVFS without bus contention |
| Operating Temperature | –40°C to +85°C - qualified for industrial and consumer portable device environments |
| Quiescent Current (PFM) | 85 µA typical - extends battery life during light-load standby states |
| Package | 49-ball DSBGA (YFF), 3.0 mm × 3.0 mm - enables ultra-compact PCB layout for space-constrained handhelds |
Pinout & Package
TPS650231YFFT uses a 49-ball, 3.0 mm × 3.0 mm DSBGA (YFF) package with bottom-side ball layout. Thermal performance is optimized via internal die attach and low RθJB (15°C/W). Pin functions are validated per TI SLVSAE3A Rev. January 2016.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| DCDC1_EN (F5) | Enable input for VDCDC1 converter | Logic-high active control - allows independent sequencing of processor core rail |
| VINDCDC13 (A3–C4) | Shared input for DCDC1 & DCDC3 | Reduces external component count by consolidating input capacitors and filtering |
| L1 (A5–C5) | Switch node for DCDC1 | Connects directly to inductor - requires tight layout to minimize EMI and switching losses |
| VLDO1 (G7) | Output of first general-purpose LDO | Digitally presettable (1.05–3.15 V) - supplies I/O or auxiliary logic with low dropout |
| TRESPWRON (G4) | Reset delay timing input | Accepts 1-nF capacitor to GND - sets 100-ms system reset pulse duration |
| SDAT (F4) | I²C bidirectional data line | Open-drain compatible - interfaces directly with host processor I²C controller |
Key Features
| Feature | Design Value |
|---|---|
| Dynamic Voltage Scaling (DVS) | Real-time DCDC1 output adjustment via I²C - enables precise power/performance tuning for ARM Cortex-A8/A9 cores |
| Dual 200-mA LDOs with Digital Select | Four preconfigured voltage combinations (e.g., 1.8 V / 2.8 V) set by DEFLDO1/DEFLDO2 - eliminates external resistors for common I/O configurations |
| Battery Backup Switchover | Automatic VRTC sourcing from VSYSIN or VBACKUP - maintains RTC operation during main battery removal or deep discharge |
| Low-Ripple PFM Mode | Maintains <10 mVPP output ripple at light loads - critical for noise-sensitive analog circuits and RF sections |
| Thermal Shutdown Protection | Triggers at 160°C junction temperature with 20°C hysteresis - prevents permanent damage during sustained overload or poor heatsinking |
Applications
| Smartphone Application | Netbook Power Architecture |
|---|---|
Use Scenario: Dual-core application processor with DDR2 memory, camera module, and touchscreen controller. IC Role / Device Role / Timing Role: Central PMIC managing core (DCDC1), I/O (DCDC2), memory (DCDC3), and always-on RTC (VRTC) rails with coordinated sequencing. Use Value: Enables dynamic core voltage scaling during video playback or idle states, reducing average power by >25% versus fixed-voltage solutions. | Use Scenario: Intel Atom-based netbook requiring stable 1.1-V core, 1.8-V I/O, and 2.5-V DDR2 supply with battery backup for real-time clock. IC Role / Device Role / Timing Role: Primary power hub delivering three regulated rails, monitoring battery health (LOWBAT/PWRFAIL), and enabling fast wake-from-sleep via HOT_RESET. Use Value: Eliminates need for discrete DC-DC controllers and LDOs - reduces BOM count by 12 components and PCB area by 35%. |
| Portable Media Player | Industrial Handheld Terminal |
Use Scenario: High-resolution OLED display, stereo audio DAC, and SD card interface powered from single Li-Po cell. IC Role / Device Role / Timing Role: Supplies clean 3.3-V I/O (DCDC2), 1.8-V memory (DCDC3), and low-noise 1.2-V analog (LDO1) while maintaining RTC time during battery swaps. Use Value: Low-ripple PFM mode ensures audio SNR remains >95 dB; VRTC switchover guarantees uninterrupted timekeeping during hot-swap maintenance. | Use Scenario: Ruggedized barcode scanner with GPS, cellular modem, and flash storage operating in extended temperature environments. IC Role / Device Role / Timing Role: Robust power manager delivering 1.7-A core rail (DCDC1), 200-mA sensor bias (LDO2), and fail-safe reset signaling (RESPWRON, PWRFAIL_SNS). Use Value: –40°C to +85°C qualification and 125°C thermal shutdown ensure reliable operation in warehouse or field conditions without derating. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar power management IC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS650230YFFT | Omits VRTC LDO and backup switch functionality; identical DCDC/LDO/I²C architecture | Not suitable for systems requiring RTC battery backup or seamless switchover | Select when RTC is supplied externally or not required - reduces cost by ~12% |
| TPS650244YFFT | Includes additional 100-mA LDO (LDO3); same DCDC specs but higher quiescent current (110 µA vs. 85 µA) | Better suited for designs needing third independent LDO for modem or connectivity ICs | Choose when extra LDO headroom justifies marginal efficiency trade-off and higher BOM cost |
Compared with TPS650231YFFT, TPS650230YFFT removes RTC backup capability but retains full DVFS and multi-rail control, while TPS650244YFFT adds an LDO at the expense of slightly higher static power - both require PCB layout review due to non-pin-compatible ball mapping.
Availability
TPS650231YFFT is available at Aetrix Electronics and suitable for smartphone, netbook, and portable media player designs requiring stable component supply, long-term lifecycle support, and guaranteed traceable sourcing.
Supply support for TPS650231YFFT 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 over 50 years of innovation in energy-efficient electronics.
The TPS6502x family was designed specifically for Li-ion powered portable devices demanding high integration, dynamic voltage scaling, and robust battery management - targeting smart phones, MIDs, and portable media players.
FAQ
What is the maximum supported output current for DCDC1 in TPS650231YFFT?
The TPS650231YFFT supports up to 1.7 A continuous output current on its DCDC1 converter, as specified in the Absolute Maximum Ratings and Electrical Characteristics sections of the official datasheet (SLVSAE3A). This rating applies under recommended operating conditions (VINDCDC1 = 2.5 V to 6 V, TA = –40°C to +85°C) with proper thermal management. The TPS650231YFFT achieves this using internal P- and N-channel MOSFETs with typical rDS(on) values of 125 mΩ and 130 mΩ respectively.
Does TPS650231YFFT support dynamic voltage scaling for the processor core rail?
Yes, the TPS650231YFFT supports dynamic voltage scaling (DVS) for the DCDC1 output - the processor core rail - via its I²C-compatible serial interface. The interface allows real-time read/write access to register-controlled voltage settings, enabling software-driven adjustments during operation. This feature is explicitly documented in the Features and Device Functional Modes sections of the TPS650231YFFT datasheet (SLVSAE3A), and is used in conjunction with the DEFDCDC1 pin for hardware-selectable defaults.
What is the function of the TRESPWRON pin on TPS650231YFFT?
The TRESPWRON pin on the TPS650231YFFT sets the duration of the RESPWRON system reset pulse using an external capacitor. Connecting a 1-nF capacitor from TRESPWRON to GND produces a nominal 100-ms active-low reset signal on RESPWRON, as confirmed in the Pin Functions and Electrical Characteristics tables of the TPS650231YFFT datasheet (SLVSAE3A). The internal constant-current source (1.7–2.3 µA) charges the capacitor to generate precise timing - no external timer IC is required.
Can TPS650231YFFT operate with a single Li-Ion battery input?
Yes, the TPS650231YFFT is explicitly designed for single-cell Li-Ion or Li-Polymer battery operation, with input voltage ranges supporting 2.5 V to 6 V across all DC-DC inputs (VINDCDC1/VINDCDC2/VINDCDC3) and LDO input (VINLDO). Its 85-µA quiescent current in PFM mode and UVLO threshold of 2.35 V (with 120-mV hysteresis) ensure reliable startup and operation down to end-of-discharge battery voltages, as detailed in Sections 7.3 and 7.5 of the TPS650231YFFT datasheet.
How does the VRTC rail behave when both VSYSIN and VBACKUP are present on TPS650231YFFT?
When both VSYSIN and VBACKUP are present, the TPS650231YFFT automatically selects the higher valid voltage source for the VRTC rail using internal ideal diode switches. VSYSIN is prioritized if ≥2.65 V (rising threshold); otherwise, VBACKUP takes over if ≥2.65 V. The switchover is seamless and occurs within microseconds, ensuring uninterrupted RTC operation. This behavior is defined in Section 7.8 of the TPS650231YFFT datasheet (SLVSAE3A), with rDS(on) of 12.5 Ω for both switches and thresholds specified to ±3%.
TPS650231YFFT 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)
TPS650231YFFT FAQ
1.How can I place an order for TPS650231YFFT through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS650231YFFT 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 TPS650231YFFT reliable?
The price and inventory of TPS650231YFFT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS650231YFFT is usually 5 days.
3.What payment methods are accepted for TPS650231YFFT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS650231YFFT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS650231YFFT?
TPS650231YFFT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS650231YFFT 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 TPS650231YFFT?
For technical support, including TPS650231YFFT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS650231YFFT requirements.
6.How does Aetrix verify that TPS650231YFFT is sourced from the original manufacturer or authorized distributors?
All TPS650231YFFT 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 TPS650231YFFT meets industry standards.
7.What is the process for return or replacement of TPS650231YFFT?
All TPS650231YFFT units undergo pre-shipment inspection (PSI). If there is an issue with TPS650231YFFT, 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 TPS650231YFFT part is unused and in its original packaging.
Return procedure for TPS650231YFFT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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