My Inquiry
My Account
Texas Instruments TPS631011YBGR
- Part No.:
- TPS631011YBGR
- Manufacturer:
- Texas Instruments
- Package:
- 8-XFBGA, DSBGA
- Datasheet:
-
TPS631011YBGR.pdf
- Description:
- IC REG BUCK ADJ 2A 8DSBGA
- Quantity:
- Payment:
- Shipping:
Inventory:2,239
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
TPS631011YBGR from Texas Instruments is a 1.5A buck-boost DC/DC converter in a 1.803mm × 0.905mm WCSP package, supporting 1.6V–5.5V input and 1.2V–5.5V adjustable output. It delivers 1.5A at VIN ≥ 2.7V/VOUT = 3.3V, features active output discharge, 2MHz fixed-frequency operation, and 8μA quiescent current-enabling compact, high-efficiency power regulation for space-constrained portable electronics.
For engineers reviewing the TPS631011YBGR datasheet, TPS631011YBGR pinout, TPS631011YBGR application, or TPS631011YBGR equivalent, key selection criteria include its active output discharge capability (distinguishing it from TPS631010), seamless buck/boost/buck-boost mode transitions, PFM/PWM mode control via MODE pin, and thermal shutdown with 160°C trip point.
Technical Context
The TPS631011YBGR uses constant-frequency peak current mode control with three defined operating modes-buck, boost, and 3-cycle buck-boost-triggered by VIN/VOUT ratio thresholds to minimize output ripple and enable start-up into pre-biased outputs. Its dual switching nodes (LX1, LX2) support forward and reverse current operation independent of voltage ratio.
It integrates undervoltage lockout (1.4–1.6V hysteresis), true shutdown with load disconnect, overvoltage protection (5.55–5.95V), short-circuit protection via 3A peak switch current limit, and soft-start with 6.4–8.7ms ramp time. The FB pin regulates output using a 500mV reference, enabling precise external resistor-divider programming.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 1.6V to 5.5V; supports single-cell Li-ion, Li-polymer, and multi-cell alkaline/NiMH sources without external LDO pre-regulation. |
| Output Voltage Range | 1.2V to 5.5V (adjustable); 1.0V supported in PFM mode-enables ultra-low-voltage sensor rails or legacy I/O domains. |
| Max Output Current | 1.5A at VIN ≥ 2.7V/VOUT = 3.3V; enables direct powering of PMIC rails, RF modules, or camera ISPs in compact wearables. |
| Switching Frequency | 1.8–2.2MHz (typ. 2MHz); allows use of tiny 1µH inductors and ceramic capacitors, reducing solution footprint to <15mm². |
| Quiescent Current | 8μA typical; sustains >10-day battery life in always-on TWS earbud cases or fingerprint sensors during standby. |
| Output Discharge | Active pull-down (~67mA typ); ensures rapid, controlled VOUT discharge on shutdown-critical for clean power sequencing in multiplexed systems. |
| Thermal Protection | 160°C shutdown with 25°C hysteresis; prevents thermal runaway in sealed enclosures like IP cameras or smart locks. |
Pinout & Package
TPS631011YBGR is packaged in an 8-pin Wafer Chip Scale Package (WCSP) measuring 1.803mm × 0.905mm with 0.4mm pitch, optimized for ultra-thin portable designs.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VIN | Power input | Accepts 1.6–5.5V supply; includes UVLO (1.4–1.6V hysteresis) and input overvoltage protection (5.55–5.95V). |
| EN | Digital enable input | Active-high logic control (0.77–1.2V threshold); enables true shutdown with load disconnect and <1μA shutdown current. |
| LX1 | Buck-stage switch node | Connects to inductor leg of buck path; rated for –2.0V to 7.0V transient stress during switching. |
| LX2 | Boost-stage switch node | Connects to inductor leg of boost path; supports reverse current flow from VOUT to VIN in FPWM mode. |
| GND | Power ground | Primary return path for all power stages; requires low-impedance PCB connection to minimize noise and thermal rise. |
| VOUT | Regulated output | Delivers up to 1.5A; includes active discharge (TPS631011 only) and output overvoltage protection (5.55–5.95V). |
| FB | Feedback input | Senses output via resistor divider; internal 500mV reference enables precise output setting (e.g., 3.3V with 511k/91k divider). |
| MODE | PFM/PWM mode select | Logic-low = auto PFM for max light-load efficiency; logic-high = forced PWM for minimal output ripple in noise-sensitive analog circuits. |
Key Features
| Feature | Design Value |
|---|---|
| Seamless tri-mode operation | Automatic transition between buck, boost, and buck-boost based on VIN/VOUT ratio-eliminates output glitches during battery discharge. |
| Active output discharge | 67mA typical sink current when EN = LOW-ensures VOUT drops rapidly to GND, preventing floating states in power-multiplexed systems. |
| Ultra-low quiescent current | 8μA typical IQ in PFM mode-extends battery runtime in always-on applications like TWS charging cases or biometric sensors. |
| Integrated soft-start | 6.4–8.7ms programmable ramp time with current-clamped start-up-prevents inrush current damage to input capacitors and source supplies. |
| Robust protection suite | Includes OVP (5.55–5.95V), UVP, thermal shutdown (160°C), short-circuit limiting (3A peak), and true shutdown with load isolation. |
Applications
| True Wireless Stereo (TWS) Earbuds | Smartphone System Pre-Regulator |
|---|---|
|
Use Scenario: Regulating battery voltage (2.7–4.3V) to stable 3.3V for Bluetooth SoC, codec, and touch controller in earbud stems. IC Role / Device Role / Timing Role: Primary buck-boost regulator providing clean, low-noise power with fast load transient response during audio streaming bursts. Use Value: 1.5A output capability and 2MHz switching enable <15mm² solution size; active discharge ensures safe power-down during case lid closure detection. |
Use Scenario: Generating intermediate 3.3V rail from variable battery or USB input for baseband processor, display interface, and camera ISP in smartphones. IC Role / Device Role / Timing Role: System-level pre-regulator delivering tightly regulated voltage across wide input range while minimizing heat in thin form factors. Use Value: Seamless mode transitions prevent output droop during battery sag; 8μA IQ extends standby time without compromising dynamic performance. |
| Fingerprint Sensor Module | IP Network Camera Voltage Stabilizer |
|
Use Scenario: Powering capacitive fingerprint sensor ASIC requiring precise 1.8V or 2.8V from single-cell Li-ion (3.0–4.2V) in smart locks or access terminals. IC Role / Device Role / Timing Role: Point-of-load regulator with programmable output and low-noise PFM operation for analog front-end stability. Use Value: Adjustable output (1.2–5.5V) and 500mV FB reference allow exact voltage matching; small WCSP package fits behind sensor glass. |
Use Scenario: Stabilizing PoE-derived 5V or battery-backed 3.6V input to clean 3.3V for image sensor, ISP, and Ethernet PHY in outdoor IP cameras. IC Role / Device Role / Timing Role: Voltage stabilizer maintaining regulation during line transients, brownouts, and thermal throttling events. Use Value: Overvoltage/overtemperature protection ensures reliability in uncontrolled environments; 1.8–2.2MHz switching avoids EMI interference with video signals. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar buck-boost converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS631010YBGR | No active output discharge; identical pinout, specs, and package. | Not suitable where controlled VOUT discharge is required (e.g., power multiplexing, sequenced shutdown). | Select TPS631010YBGR only if discharge is unnecessary and cost minimization is critical. |
| MP2166GQ-Z | 2.5A output, 2.2MHz, no integrated discharge; 12-pin QFN (2.5mm × 2.5mm), higher IQ (15μA). | Larger footprint and no discharge function limit use in ultra-compact or sequenced-power systems. | Choose MP2166GQ-Z only when >1.5A output or higher thermal margin is needed and board area permits larger package. |
Compared with TPS631010YBGR, TPS631011YBGR adds essential active discharge for clean power sequencing; versus MP2166GQ-Z, it trades 0.5A output headroom for 40% smaller footprint and guaranteed discharge functionality-making it optimal for miniaturized, multi-rail portable systems.
Availability
TPS631011YBGR is available at Aetrix Electronics and suitable for true wireless stereo (TWS) earbuds, smartphone system pre-regulators, and fingerprint sensor modules requiring stable component supply, long-term lifecycle assurance, and traceable wafer-lot sourcing.
Supply support for TPS631011YBGR 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 ICs, with decades of expertise in high-efficiency DC/DC conversion.
The TPS6310xx family was designed specifically for ultra-compact, battery-powered portable electronics-delivering high integration, low IQ, and robust protection in wafer-level chip-scale packaging.
FAQ
What is the key functional difference between TPS631011YBGR and TPS631010YBGR?
The TPS631011YBGR includes active output discharge (~67mA typical), while the TPS631010YBGR does not. This feature pulls VOUT to GND during shutdown, preventing floating voltages in power-multiplexed or sequenced systems. Both share identical pinout, electrical specs, and WCSP package-making TPS631011YBGR the choice when controlled discharge is required for system-level reliability.
What output voltage ranges and accuracy does TPS631011YBGR support?
TPS631011YBGR supports 1.2V to 5.5V adjustable output via external resistor divider, with a nominal 500mV feedback reference (±5mV tolerance). For example, a 511kΩ/91kΩ divider sets 3.3V output with ±1% accuracy under typical conditions. The device also supports 1.0V output in PFM mode, extending flexibility for ultra-low-voltage peripherals.
How does TPS631011YBGR handle input voltage transitions near the output voltage?
TPS631011YBGR automatically transitions between buck, boost, and 3-cycle buck-boost modes based on VIN/VOUT ratio-using defined duty-cycle thresholds to avoid mode toggling and minimize output ripple. This seamless operation maintains regulation during battery discharge (e.g., 3.6V → 3.3V) without glitches, unlike fixed-mode converters requiring external supervision.
What thermal performance can be expected from TPS631011YBGR in its YBG WCSP package?
TPS631011YBGR in the YBG WCSP package has a junction-to-board thermal resistance (RΘJB) of 43.9°C/W and junction-to-ambient (RΘJA) of 84°C/W. With proper PCB copper pour (≥2cm² 2oz Cu under package), it sustains 1.5A continuous output at ambient temperatures up to 60°C-validated by TI's thermal characterization data and widely used in thermally constrained TWS and camera modules.
Can TPS631011YBGR operate with reverse current flow, and under what conditions?
Yes-TPS631011YBGR supports reverse current (VOUT → VIN) in forced PWM (FPWM) mode when the FB voltage exceeds the 500mV reference. This occurs independently of VIN/VOUT ratio and functions in all operating modes (buck, boost, buck-boost), enabling applications like bidirectional power arbitration or backup supply injection-provided input overvoltage protection (5.55–5.95V) remains within limits.
TPS631011YBGR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 8-XFBGA, DSBGA
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Function:
- Step-Down
- Output Configuration:
- Positive
- Topology:
- Buck
- Output Type:
- Adjustable
- Number of Outputs:
- 1
- Voltage - Input (Min):
- 1.6V
- Voltage - Input (Max):
- 5.5V
- Voltage - Output (Min/Fixed):
- 1.2V
- Voltage - Output (Max):
- 5.5V
- Current - Output:
- 2A
- Frequency - Switching:
- 2MHz
- Synchronous Rectifier:
- No
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-DSBGA (1.6x1.1)
TPS631011YBGR FAQ
1.How can I place an order for TPS631011YBGR through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS631011YBGR 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 TPS631011YBGR reliable?
The price and inventory of TPS631011YBGR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS631011YBGR is usually 5 days.
3.What payment methods are accepted for TPS631011YBGR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS631011YBGR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS631011YBGR?
TPS631011YBGR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS631011YBGR 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 TPS631011YBGR?
For technical support, including TPS631011YBGR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS631011YBGR requirements.
6.How does Aetrix verify that TPS631011YBGR is sourced from the original manufacturer or authorized distributors?
All TPS631011YBGR 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 TPS631011YBGR meets industry standards.
7.What is the process for return or replacement of TPS631011YBGR?
All TPS631011YBGR units undergo pre-shipment inspection (PSI). If there is an issue with TPS631011YBGR, 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 TPS631011YBGR part is unused and in its original packaging.
Return procedure for TPS631011YBGR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TPS631011YBGR Tags
-
TPS562201DDCR
Texas Instruments
-
MC34063ABD-TR
STMicroelectronics
-
TPS561201DDCR
Texas Instruments
-
MC33063ADR
Texas Instruments
-
MC34063ADR
Texas Instruments
-
TPS560200DBVR
Texas Instruments
-
AP3012KTR-G1
Diodes Incorporated
-
TLV61048DBVR
Texas Instruments
-
AZ34063UMTR-G1
Diodes Incorporated
-
TPS562200DDCR
Texas Instruments
-
AP62300TWU-7
Diodes Incorporated
-
MC34063EBD-TR
STMicroelectronics
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
