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Texas Instruments TPS610986DSET
- Part No.:
- TPS610986DSET
- Manufacturer:
- Texas Instruments
- Category:
- Voltage Regulators - Linear + Switching
- Package:
- 6-WFDFN
- Datasheet:
-
TPS610986DSET.pdf
- Description:
- IC REG DL BOOST/LNR SYNC 6WSON
- Quantity:
- Payment:
- Shipping:
Inventory:530
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Product details
Overview
TPS610986DSET from Texas Instruments is an ultra-low quiescent current synchronous boost converter with integrated load switch, designed for single-cell battery systems. It delivers 3.3 V main output (VMAIN) and ON/OFF-controlled VSUB rail, operates from 0.7 V to 4.5 V input, supports automatic pass-through above 3.35 V, and achieves 300 nA IQ in low-power mode - enabling multi-year operation in BLE tags and wearable sensors.
For engineers reviewing the TPS610986DSET datasheet, TPS610986DSET pinout, TPS610986DSET application, or TPS610986DSET equivalent, key selection criteria include its dual-mode MODE pin control, 3.3 V fixed VMAIN output in both modes, load-switch-only VSUB architecture with active discharge, and 1.5-mm × 1.5-mm WSON-6 package optimized for space-constrained coin-cell devices.
Technical Context
The TPS610986DSET implements a hysteretic synchronous boost topology with automatic pass-through functionality: when VIN exceeds 3.35 V (with 0.1 V hysteresis), the boost stage disables and VIN passes directly to VMAIN; below that threshold, it regulates VMAIN at 3.3 V using a 4.7-µH inductor and internal 350-mA peak-current-limited switch.
Its two-mode operation is controlled solely by the MODE pin: high enables both VMAIN and VSUB rails (VSUB as load switch), while low disables VSUB but maintains regulated 3.3 V on VMAIN with only 300 nA quiescent current - making it ideal for intermittent-sensing applications where peripherals must be fully isolated during sleep.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 0.7 V to 4.5 V - supports direct operation from depleted alkaline, NiMH, or Li-ion cells down to near-empty voltage. |
| VMAIN Output | Fixed 3.3 V in both Active and Low Power modes - provides stable system supply regardless of MODE state. |
| VSUB Function | Load switch (not LDO) with active discharge - enables clean power gating of peripherals and prevents floating outputs. |
| Quiescent Current (Low Power) | 300 nA into VMAIN - extends battery life in always-on sensing nodes powered by CR2032 or AAA cells. |
| Pass-through Threshold | 3.35 V rising, 3.25 V falling - eliminates switching losses when input exceeds regulated output, improving efficiency at higher battery voltages. |
| Peak Switch Current Limit | 350 mA minimum - supports up to 50 mA total output at 0.7 V → 3.3 V conversion with margin. |
| Package | 6-pin WSON, 1.5 mm × 1.5 mm - enables compact layout in wearables and remote controls with minimal PCB area. |
Pinout & Package
The TPS610986DSET is housed in a thermally enhanced 6-pin WSON package (1.5 mm × 1.5 mm, 0.5 mm height) with exposed thermal pad. Pin 6 (GND) connects to the die attach pad for optimal thermal performance and EMI reduction.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VMAIN (Pin 1) | Power output | Regulated 3.3 V boost output - always active; supplies main system even in Low Power mode. |
| SW (Pin 2) | Power switch node | Connection point for external 4.7-µH inductor - carries pulsed current during boost operation. |
| VIN (Pin 3) | Input supply | Battery input (0.7–4.5 V); powers internal circuitry and feeds boost stage; enables pass-through when >3.35 V. |
| MODE (Pin 4) | Digital control input | Active-high logic: HIGH = Active mode (VSUB enabled), LOW = Low Power mode (VSUB disabled). |
| VSUB (Pin 5) | Load switch output | ON/OFF-controlled rail - connects to VIN when MODE = HIGH; disconnected and actively discharged when MODE = LOW. |
| GND (Pin 6) | Ground reference | System ground return path; also serves as thermal pad connection for heat dissipation. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low IQ in Low Power mode | 300 nA quiescent current ensures >10-year battery life in CR2032-powered BLE sensors with 1-second wake interval. |
| Automatic pass-through | Eliminates switching losses when VIN ≥ 3.35 V, increasing efficiency to >95% in high-battery-voltage conditions. |
| Integrated load switch with discharge | VSUB actively pulls down when disabled - prevents leakage-induced wake-up or signal contention in peripheral circuits. |
| Dual-mode MODE pin control | Simplifies system power sequencing: single GPIO toggles between full-system operation and ultra-low-power sleep without firmware overhead. |
| Hysteretic boost architecture | Enables fast transient response and stable regulation at microamp loads - critical for intermittent sensor readouts. |
Applications
| Smart Remote Control | BLE Tag |
|---|---|
Use Scenario: IR or RF remote with motion-activated wake-up and button-press transmission. IC Role / Device Role / Timing Role: Primary power manager supplying MCU, IR LED driver, and RF transceiver from single AAA cell. Use Value: 300 nA low-power mode extends shelf life beyond 5 years; pass-through avoids inefficiency when fresh battery voltage exceeds 3.3 V. | Use Scenario: Battery-powered Bluetooth beacon transmitting temperature or location data every 2 seconds. IC Role / Device Role / Timing Role: Dual-rail power source: VMAIN powers BLE SoC continuously; VSUB gates sensor supply only during measurement. Use Value: Active VSUB discharge prevents sensor bias leakage from waking BLE SoC unintentionally during sleep cycles. |
| Wearable Heart Rate Monitor | Portable Medical Glucose Meter |
Use Scenario: Optical PPG sensor worn 24/7, sampling heart rate every 30 seconds with motion compensation. IC Role / Device Role / Timing Role: Always-on VMAIN powers MCU and BLE; VSUB enables optical front-end only during acquisition bursts. Use Value: Fixed 3.3 V VMAIN ensures consistent ADC reference and LED drive voltage across battery discharge curve. | Use Scenario: Handheld glucose meter using electrochemical test strips, requiring precise analog front-end biasing. IC Role / Device Role / Timing Role: Provides stable 3.3 V for microcontroller and analog signal chain; VSUB isolates strip interface circuitry until measurement begins. Use Value: Load-switch VSUB eliminates standby current through test-strip electrodes - critical for minimizing false readings caused by parasitic currents. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar boost-with-load-switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS610985DSE | 3.0 V fixed VMAIN output; same load-switch VSUB architecture and 300-nA IQ. | Targeted at 3.0-V systems (e.g., older BLE SoCs or specific sensor ICs requiring 3.0 V). | Select when system-level VMAIN requirement is 3.0 V and pass-through threshold of 3.05 V aligns with battery profile. |
| TPS610981DSE | 3.3 V VMAIN but integrates LDO (not load switch) for VSUB; includes VSUB active discharge. | Suitable where peripheral requires regulated 3.0 V (not switched VIN) and tighter VSUB accuracy is needed. | Choose when VSUB must deliver stable 3.0 V under varying load, not just ON/OFF control - e.g., powering precision analog sensors. |
Compared with TPS610985DSE and TPS610981DSE, the TPS610986DSET uniquely combines 3.3 V VMAIN regulation with load-switch VSUB and active discharge - offering optimal balance of simplicity, efficiency, and peripheral isolation for modern ultra-low-power wireless endpoints.
Availability
TPS610986DSET is available at Aetrix Electronics and suitable for smart remote control, BLE tag, wearable health monitor, portable medical device, and single-coin-cell IoT sensor applications requiring stable component supply and long-term lifecycle support.
Supply support for TPS610986DSET 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 and embedded processing technologies, with leadership in power management ICs for battery-operated systems.
The TPS61098x family is engineered for ultra-low-power battery applications - delivering regulated outputs from near-dead cells while minimizing quiescent current, enabling multi-year operation in wearables, remote sensors, and medical disposables.
FAQ
What is the VMAIN output voltage of the TPS610986DSET?
The TPS610986DSET provides a fixed 3.3 V output on the VMAIN pin in both Active and Low Power modes. This voltage remains regulated across the full input range (0.7 V to 4.5 V) and is unaffected by MODE pin state - ensuring consistent power to the main system even during ultra-low-power sleep.
Does the TPS610986DSET include an LDO or a load switch for the VSUB rail?
The TPS610986DSET uses a load switch - not an LDO - for the VSUB rail. When MODE = HIGH, VSUB connects directly to VIN; when MODE = LOW, VSUB is disconnected and actively discharged to GND. This architecture minimizes standby current and eliminates LDO dropout limitations, making it ideal for simple ON/OFF peripheral control.
What is the pass-through threshold voltage for the TPS610986DSET?
The TPS610986DSET enters pass-through mode when VIN rises above 3.35 V (with 0.1 V hysteresis), routing VIN directly to VMAIN and disabling the boost converter. This occurs in both Active and Low Power modes, improving efficiency and reducing quiescent losses when battery voltage is sufficient.
How does the MODE pin control operation of the TPS610986DSET?
The MODE pin is a digital input: logic HIGH (≥1.2 V) enables Active mode (both VMAIN and VSUB active), while logic LOW (≤0.4 V) enables Low Power mode (VMAIN remains regulated at 3.3 V, VSUB is disabled and discharged). The pin must be actively driven - floating is prohibited per datasheet.
What package type and dimensions does the TPS610986DSET use?
The TPS610986DSET is packaged in a 6-pin WSON (Wettable Flank Small Outline No-lead) case measuring 1.5 mm × 1.5 mm × 0.5 mm, with an exposed thermal pad on the bottom. This compact, thermally efficient package supports automated optical inspection and is optimized for high-density layouts in miniature battery-powered devices.
TPS610986DSET Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 6-WFDFN
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Topology:
- Step-Up (Boost) Synchronous (1), Linear (LDO) (1)
- Number of Outputs:
- 2
- Frequency - Switching:
- -
- Voltage/Current - Output 1:
- 3.3V, 350mA
- Voltage/Current - Output 2:
- 3.3V, 200mA
- Voltage/Current - Output 3:
- -
- w/LED Driver:
- No
- w/Supervisor:
- No
- w/Sequencer:
- No
- Voltage - Supply:
- 0.7V ~ 4.5V
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 6-WSON (1.5x1.5)
TPS610986DSET FAQ
1.How can I place an order for TPS610986DSET through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS610986DSET 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 TPS610986DSET reliable?
The price and inventory of TPS610986DSET are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS610986DSET is usually 5 days.
3.What payment methods are accepted for TPS610986DSET?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS610986DSET transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS610986DSET?
TPS610986DSET orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS610986DSET 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 TPS610986DSET?
For technical support, including TPS610986DSET datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS610986DSET requirements.
6.How does Aetrix verify that TPS610986DSET is sourced from the original manufacturer or authorized distributors?
All TPS610986DSET 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 TPS610986DSET meets industry standards.
7.What is the process for return or replacement of TPS610986DSET?
All TPS610986DSET units undergo pre-shipment inspection (PSI). If there is an issue with TPS610986DSET, 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 TPS610986DSET part is unused and in its original packaging.
Return procedure for TPS610986DSET:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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