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Texas Instruments TPS63806YFFR
- Part No.:
- TPS63806YFFR
- Manufacturer:
- Texas Instruments
- Package:
- 15-UFBGA, DSBGA
- Datasheet:
-
TPS63806YFFR.pdf
- Description:
- IC REG BUCK BOOST ADJ 2A 15DSBGA
- Quantity:
- Payment:
- Shipping:
Inventory:8,536
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Product details
Overview
TPS63806YFFR from Texas Instruments is a high-efficiency, low-quiescent-current buck-boost DC/DC converter optimized for fast load-step response in compact portable systems. It operates across 1.3 V–5.5 V input and delivers adjustable 1.8 V–5.2 V output with up to 2.5-A transient current, 13-µA quiescent current, and integrated overvoltage/overtemperature protection - deployed in time-of-flight camera sensors and broadband SoC supplies.
For engineers reviewing the TPS63806YFFR datasheet, TPS63806YFFR pinout, TPS63806YFFR application, or TPS63806YFFR equivalent, key selection criteria include its 180-mV load-step response at 2-A step, WCSP package thermal performance (RΘJA = 78.8°C/W), buck-boost mode transition thresholds, and MODE pin-controlled PFM/PWM operation.
Technical Context
The TPS63806YFFR uses a peak-current-mode control architecture with four internal switches to enable seamless transitions between buck, buck-boost (3-cycle), and boost modes based on real-time VIN–VOUT differential. Its inner current loop compares measured inductor current against a voltage-loop-derived reference current, ensuring stable regulation across wide input/output ranges.
It supports forward and reverse current operation, start-up into pre-biased outputs, and true shutdown with load disconnect. The MODE pin selects between power-save (PFM) mode for light-load efficiency and forced PWM mode for minimal output ripple - critical for noise-sensitive imaging and RF subsystems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 1.3 V to 5.5 V; supports single-cell Li-ion, Li-polymer, and multi-cell alkaline/NiMH sources without external LDO pre-regulation |
| Output Voltage Range | Adjustable 1.8 V to 5.2 V via external resistor divider; enables flexible rail generation for diverse SoCs and sensors |
| Quiescent Current | 13 µA typical; maintains >90% efficiency down to µA-level loads, extending battery life in always-on IoT endpoints |
| Load-Step Response | 180 mV deviation at 2-A step; minimizes voltage droop during burst-mode sensor activation in time-of-flight cameras |
| Peak Inductor Current Limit | 5.5 A in buck-boost mode; sustains high transient delivery without foldback, supporting thermoelectric cooler (TEC) drive pulses |
| Switching Frequency | 1.4 MHz (buck-boost), 1.6 MHz (buck), 2.1 MHz (boost); enables use of sub-1-µH inductors for ultra-compact PCB layout |
| Thermal Resistance | RΘJA = 78.8°C/W; allows 2.5-A continuous operation with minimal heatsinking in 1.4 mm × 2.3 mm WCSP package |
Pinout & Package
TPS63806YFFR is housed in a 3 × 5-ball, 0.4-mm-pitch wafer-chip-scale package (WCSP) measuring 2.3 mm × 1.4 mm with 0.25-mm profile - optimized for space-constrained mobile and wearable applications.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VIN (A2, A3) | Primary power input | Accepts 1.3–5.5 V; requires ≥4 µF local ceramic capacitance for stability and EMI suppression |
| L1 (B2, B3) | Boost-side inductor connection | Connects to one terminal of 0.37–0.57 µH inductor; carries high di/dt during boost/buck-boost phases |
| GND (C2, C3) | Power ground return | Low-impedance path for all switching currents; must be tied directly to thermal pad and PCB ground plane |
| L2 (D2, D3) | Buck-side inductor connection | Connects to second inductor terminal; shares same inductor as L1 in typical 2-terminal configuration |
| VOUT (E2, E3) | Regulated power output | Delivers up to 2.5-A transient current; requires ≥21 µF output capacitance for optimal load-step performance |
| EN (A1) | Enable control input | Logic-high (>1.2 V) enables converter; precise threshold (1.1 V typ.) supports RC-delayed power-up sequencing |
| MODE (B1) | PFM/PWM mode select | LOW = automatic PFM for efficiency; HIGH = forced PWM for low-noise, fixed-frequency operation |
| AGND (C1) | Analog ground reference | Separate ground for feedback and control circuitry; must be connected to GND at single point near IC |
| FB (D1) | Feedback voltage sensing | Monitors output via resistive divider; 500-mV internal reference enables accurate 1.8–5.2 V programming |
| PG (E1) | Open-drain power-good indicator | Asserts high-Z when VOUT ≥ 95% target; sinks 1 mA when VOUT < 90% - used for rail sequencing and fault detection |
Key Features
| Feature | Design Value |
|---|---|
| Optimized load-step response | 180-mV deviation at 2-A step - ensures stable supply during rapid current transients in ToF camera pixel arrays |
| True shutdown with load disconnect | Active isolation of VOUT from VIN during EN = LOW, preventing backfeed and enabling safe hot-swap operation |
| Integrated soft-start ramp | 224-µs current-limit ramp time - limits inrush current during startup into large capacitive loads or pre-biased rails |
| Reverse current capability | Supports bidirectional energy flow; enables controlled discharge and reverse-boost protection (IVP) to clamp VIN during fault conditions |
| Robust protection suite | Includes overtemperature shutdown (150°C), output overvoltage lockout (5.7 V typ.), and undervoltage lockout (1.7 V rising threshold) |
Applications
| Time-of-Flight Camera Sensor | SoC Supply for Broadband Network Radio |
|---|---|
Use Scenario: Powers active illumination and image sensor array in smartphone depth-sensing modules, requiring rapid current bursts during frame capture. IC Role / Device Role / Timing Role: Primary buck-boost regulator delivering stable 3.3-V rail with sub-200-mV load-step deviation during 2-A transients. Use Value: Eliminates need for separate LDO post-regulator by maintaining tight voltage regulation under dynamic load, reducing BOM count and board area. |
Use Scenario: Supplies core voltage to Wi-Fi 6/7 or cellular baseband SoCs in IoT gateways and EPOS terminals with variable processing loads. IC Role / Device Role / Timing Role: System pre-regulator converting single-cell battery or USB input to programmable SoC core rail (e.g., 0.8–1.2 V via secondary LDO). Use Value: Enables direct battery-to-SoC conversion across full discharge curve (4.2 V → 3.0 V), maximizing runtime without intermediate conversion losses. |
| Thermoelectric Cooler (TEC) Driver | General-Purpose Voltage Stabilizer |
Use Scenario: Provides bidirectional current control for optical module TECs requiring precise temperature stabilization in fiber transceivers. IC Role / Device Role / Timing Role: Bidirectional buck-boost controller supporting forward (cooling) and reverse (heating) current flow with symmetric current limiting. Use Value: Replaces discrete H-bridge + linear regulator solutions, cutting solution size by >40% while maintaining ±0.5°C thermal stability. |
Use Scenario: Regulates unregulated input rails in industrial sensors, dongles, and portable test equipment where input voltage varies widely. IC Role / Device Role / Timing Role: Universal voltage stabilizer accepting 1.3–5.5 V inputs and delivering clean, adjustable 1.8–5.2 V outputs with <0.3% line regulation. Use Value: Simplifies power architecture across product families by eliminating need for multiple fixed-output regulators or custom designs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar buck-boost converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS63805YFFR | 11-µA IQ, 320-mV load-step response, smaller 22-µF min. CO requirement | Better suited for ultra-low-power always-on sensors where efficiency at µA loads outweighs transient performance | Select when minimizing no-load power dominates over load-step fidelity |
| TPS63807YFFR | 11-µA IQ, 480-µs Tramp, integrated output discharge on EN=LOW | Required where safe rail discharge is mandatory (e.g., medical wearables, secure boot systems) | Select when output discharge functionality is explicitly needed for system safety or sequencing compliance |
Compared with TPS63805YFFR and TPS63807YFFR, the TPS63806YFFR trades slightly higher quiescent current (13 µA vs. 11 µA) and longer soft-start (224 µs vs. 480 µs) for superior dynamic response - making it the only choice among the family for time-critical imaging and RF subsystems demanding <200-mV load-step deviation.
Availability
TPS63806YFFR is available at Aetrix Electronics and suitable for time-of-flight camera modules, broadband network radios, and thermoelectric device supplies requiring stable component supply, long-term lifecycle support, and traceable sourcing for production programs.
Supply support for TPS63806YFFR 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 designing analog and embedded processing chips for industrial, automotive, and personal electronics markets.
The TPS6380x family was developed specifically for space-constrained, battery-powered applications needing high-efficiency, wide-input buck-boost regulation - targeting smartphones, IoT edge nodes, and optical sensing systems.
FAQ
What is the minimum output capacitance required for stable operation of the TPS63806YFFR?
The TPS63806YFFR requires a minimum 21 µF effective output capacitance for optimal load-step response when VOUT > 2.3 V. This value is specified in the Recommended Operating Conditions table and ensures the 180-mV load-step response is achieved. Using less capacitance degrades transient performance and may cause instability under heavy dynamic loads. The TPS63806YFFR datasheet specifies 21–27 µF for VOUT > 2.3 V, with 22 µF being a common design value.
Does the TPS63806YFFR support start-up into a pre-biased output?
Yes, the TPS63806YFFR supports start-up into a pre-biased output - a feature explicitly documented in the "Features" section and detailed in Section 9.4.1.3 of the datasheet. This capability allows the TPS63806YFFR to safely initialize when VOUT already holds residual voltage, preventing reverse current injection and ensuring controlled ramp-up. It is enabled by the device's peak-current-mode architecture and internal soft-start logic.
How does the MODE pin affect efficiency and output ripple in the TPS63806YFFR?
When the MODE pin is pulled LOW, the TPS63806YFFR operates in power-save (PFM) mode, skipping switching cycles at light loads to achieve 13-µA quiescent current and peak efficiency >92%. When MODE is HIGH, it forces continuous PWM operation, fixing the switching frequency (1.4–2.1 MHz) and reducing output ripple by >10× - essential for noise-sensitive RF and imaging circuits. Both modes are fully supported and validated in the TPS63806YFFR datasheet.
What protection features are integrated into the TPS63806YFFR?
The TPS63806YFFR integrates overtemperature shutdown (150°C with 20°C hysteresis), output overvoltage protection (5.7 V typical trip), input undervoltage lockout (1.7 V rising threshold), true shutdown with load disconnect, and forward/reverse current limiting. These protections are silicon-verified and documented in Sections 8.1, 8.5, and 9.3 of the official datasheet - ensuring robust operation in consumer and industrial environments without external circuitry.
Can the TPS63806YFFR deliver 2.5 A continuously, or only as a transient rating?
The TPS63806YFFR is rated for up to 2.5-A transient output current - confirmed in the "Features" section and electrical characteristics tables. Continuous current depends on thermal conditions: with proper PCB layout (2-layer board, 1-in² copper pour), it delivers ≥2.0 A continuously at ambient ≤60°C. The 2.5-A rating reflects peak capability during short-duration load steps (e.g., ToF camera flash), not steady-state operation - a distinction clearly defined in the TPS63806YFFR datasheet.
TPS63806YFFR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 15-UFBGA, DSBGA
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Function:
- Step-Up/Step-Down
- Output Configuration:
- Positive
- Topology:
- Buck-Boost
- Output Type:
- Adjustable
- Number of Outputs:
- 1
- Voltage - Input (Min):
- 1.3V
- Voltage - Input (Max):
- 5.5V
- Voltage - Output (Min/Fixed):
- 1.8V
- Voltage - Output (Max):
- 5.2V
- Current - Output:
- 2A
- Frequency - Switching:
- 2.1MHz
- Synchronous Rectifier:
- Yes
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 15-DSBGA
TPS63806YFFR FAQ
1.How can I place an order for TPS63806YFFR through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS63806YFFR 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 TPS63806YFFR reliable?
The price and inventory of TPS63806YFFR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS63806YFFR is usually 5 days.
3.What payment methods are accepted for TPS63806YFFR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS63806YFFR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS63806YFFR?
TPS63806YFFR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS63806YFFR 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 TPS63806YFFR?
For technical support, including TPS63806YFFR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS63806YFFR requirements.
6.How does Aetrix verify that TPS63806YFFR is sourced from the original manufacturer or authorized distributors?
All TPS63806YFFR 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 TPS63806YFFR meets industry standards.
7.What is the process for return or replacement of TPS63806YFFR?
All TPS63806YFFR units undergo pre-shipment inspection (PSI). If there is an issue with TPS63806YFFR, 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 TPS63806YFFR part is unused and in its original packaging.
Return procedure for TPS63806YFFR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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