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Texas Instruments TPS62082DSGT
- Part No.:
- TPS62082DSGT
- Manufacturer:
- Texas Instruments
- Package:
- 8-WFDFN Exposed Pad
- Datasheet:
-
TPS62082DSGT.pdf
- Description:
- IC REG BUCK 3.3V 1.2A 8WSON
- Quantity:
- Payment:
- Shipping:
Inventory:7,886
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Product details
Overview
TPS62082DSGT from Texas Instruments is a 3.3-V fixed-output, 1.2-A synchronous step-down DC/DC converter with DCS-Control™ architecture, 2.3–6-V input range, 6.5-µA Snooze Mode quiescent current, and integrated power-good output - designed for battery-powered portable devices requiring stable low-noise rail generation.
For engineers reviewing the TPS62082DSGT datasheet, TPS62082DSGT pinout, TPS62082DSGT application, or TPS62082DSGT equivalent, key selection criteria include ultra-low IQ in Snooze Mode, 2-MHz nominal switching frequency, 100% duty-cycle dropout operation, and WSON-8 thermal-pad package compatibility with space-constrained PCB layouts.
Technical Context
The TPS62082DSGT implements DCS-Control™ topology-combining voltage-mode control with seamless PWM-to-PFM transition-to deliver ±2.5% output voltage accuracy at 0 mA load and maintain tight regulation during fast load transients. Its dual-stage efficiency optimization uses Power Save Mode below ~200 mA and Snooze Mode (enabled via MODE pin) for sub-2-mA loads.
Internally, it integrates high-side (95 mΩ typ) and low-side (70 mΩ typ) N-MOSFETs, a 0.45-V feedback reference, active output discharge (1-kΩ resistor), and thermal shutdown (150°C trip). The PG open-drain output provides sequencing capability with 90% to 95% VOUT hysteresis and requires external pull-up.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 3.3 V ±2.5% at 0 mA; enables direct replacement of LDOs without external resistors. |
| Input Voltage Range | 2.3 V to 6 V - supports single-cell Li-ion, Li-polymer, and multi-cell alkaline/NiMH batteries. |
| Quiescent Current | 6.5 µA in Snooze Mode - extends battery runtime in always-on sensor nodes and standby circuits. |
| Switching Frequency | 2 MHz nominal - allows use of small 1-µH inductors and compact ceramic output capacitors (≥10 µF). |
| Output Current | 1.2 A continuous - sufficient for powering microcontrollers, RF transceivers, and memory subsystems. |
| Power-Good Threshold | 90% to 95% of nominal VOUT - provides reliable rail monitoring for system reset and sequencing logic. |
| Thermal Shutdown | 150°C with 20°C hysteresis - protects against sustained overload or poor PCB thermal design. |
Pinout & Package
TPS62082DSGT is housed in an 8-pin WSON package (2.0 mm × 2.0 mm) with exposed thermal pad soldered to GND for enhanced thermal dissipation and mechanical reliability.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| EN (Pin 1) | Enable input | Active-high logic control; must be pulled HIGH to activate regulator; floating state disables device. |
| GND (Pin 2) | Power and signal ground | Common return path for VIN, SW, PG, and thermal pad; critical for noise immunity and thermal performance. |
| MODE (Pin 3) | Snooze Mode enable | Logic HIGH activates 6.5-µA ultra-low-IQ mode; LOW disables Snooze for better transient response above 2 mA. |
| FB (Pin 4) | Feedback input | Left floating for fixed 3.3-V operation; not used - internal divider sets regulation point. |
| VOS (Pin 5) | Output voltage sense | Direct connection to VOUT node; improves regulation accuracy by sensing post-PCB trace drop. |
| PG (Pin 6) | Power-good open drain | Drives LOW when VOUT falls below 90% of 3.3 V; requires external pull-up for system sequencing. |
| SW (Pin 7) | Switch node | Connects to inductor; carries high di/dt switching current - demands short, low-inductance layout. |
| VIN (Pin 8) | Input supply | Accepts 2.3–6 V; bypassed with ≥10 µF ceramic capacitor close to pin for stability and EMI reduction. |
Key Features
| Feature | Design Value |
|---|---|
| DCS-Control™ Architecture | Enables <1% output voltage deviation during 100-mA to 1-A load steps without external compensation components. |
| Snooze Mode | Reduces quiescent current to 6.5 µA at zero load - increases battery life in IoT endpoints by up to 3× vs standard PFM mode. |
| 100% Duty-Cycle Operation | Supports VIN as low as VOUT + IOUT × RDS(on)_HS - extends usable battery range down to ~3.4 V for 3.3-V output. |
| Integrated Output Discharge | 1-kΩ internal resistor discharges VOUT when EN = LOW - eliminates need for external bleed circuit in hot-swap applications. |
| Thermal Protection | Auto-recovery shutdown at 150°C junction temperature - prevents permanent damage during sustained overload or airflow loss. |
Applications
| Wearable Health Monitor | Industrial Sensor Node |
|---|---|
Use Scenario: Continuous ECG/PPG signal acquisition powered by coin-cell or thin-film battery. IC Role / Device Role / Timing Role: Primary 3.3-V system rail regulator with Snooze Mode enabled during sleep intervals between measurements. Use Value: 6.5-µA quiescent current extends 200-mAh battery life to >2 years in 1-minute measurement cycles. | Use Scenario: Wireless vibration/temperature sensor deployed in factory-floor enclosures with limited airflow. IC Role / Device Role / Timing Role: Point-of-load regulator for MCU and BLE radio; PG output triggers wake-up on data transmission event. Use Value: 2-MHz switching avoids AM band interference; thermal pad ensures safe operation at 85°C ambient. |
| Smart Meter LCD Backlight | Portable Medical Infusion Pump |
Use Scenario: Driving white LED strings from 3.7-V Li-ion battery with dynamic brightness control. IC Role / Device Role / Timing Role: Pre-regulator supplying constant 3.3 V to LED driver IC; MODE pin toggled by MCU to optimize efficiency at varying backlight intensity. Use Value: 100% duty cycle maintains backlight until battery drops to 3.4 V - maximizes display uptime per charge. | Use Scenario: Battery-backed safety-critical subsystem requiring validated rail integrity and fault signaling. IC Role / Device Role / Timing Role: Certified 3.3-V power rail with PG output wired to MCU's NMI pin for immediate fault detection and controlled shutdown. Use Value: ±2.5% output accuracy and PG hysteresis ensure compliance with IEC 62304 Class B software requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar step-down converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS62081DSGT | Fixed 1.8-V output; identical package, pinout, and Snooze Mode behavior. | Used where lower core voltage required for ultra-low-power MCUs (e.g., MSP430FRxx). | Select when target SoC or MCU mandates 1.8-V I/O or core rail. |
| TPS62840DLCR | Lower IQ (300 nA typical), 1.8–5.5-V input, but only 0.6-A output and no PG pin. | Suitable for sub-100-µA always-on sensors; lacks rail sequencing capability. | Choose for extreme energy harvesting or battery-life-critical applications without sequencing needs. |
Compared with TPS62081DSGT, the TPS62082DSGT delivers higher output voltage for peripherals requiring 3.3 V, while TPS62840DLCR trades off current capability and PG functionality for nanowatt-level quiescent consumption - making each optimal for distinct power budget and system control priorities.
Availability
TPS62082DSGT is available at Aetrix Electronics and suitable for wearable health monitors, industrial sensor nodes, smart meter displays, and portable medical infusion pumps requiring stable component supply with full lifecycle support.
Supply support for TPS62082DSGT 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 industrial, automotive, and consumer markets.
The TPS6208x product line was engineered for high-efficiency, low-noise, space-constrained DC/DC conversion in battery-powered systems - emphasizing ultra-low quiescent current, seamless light-load efficiency, and robust thermal performance in 2-mm × 2-mm packages.
FAQ
What is the output voltage tolerance of the TPS62082DSGT under no-load conditions?
The TPS62082DSGT guarantees ±2.5% output voltage accuracy at 0 mA load and VIN ≥ 3.6 V, as specified in the Electrical Characteristics table. This tolerance holds across –40°C to 125°C junction temperature and ensures reliable operation for precision analog and digital circuitry without external trimming.
Does the TPS62082DSGT require external feedback resistors to set its output voltage?
No, the TPS62082DSGT is a fixed-output variant with internally trimmed 3.3-V regulation - FB pin is left unconnected. Unlike the adjustable TPS62080, it eliminates resistor selection errors and layout sensitivity, reducing BOM count and improving long-term stability in production.
How does the MODE pin affect efficiency and transient response in the TPS62082DSGT?
When MODE = HIGH, the TPS62082DSGT enters Snooze Mode, reducing IQ to 6.5 µA for peak efficiency below 2 mA load - ideal for standby. When MODE = LOW, it operates in standard Power Save Mode with faster transient recovery, preferred for dynamic loads like MCU wake-ups or radio bursts.
Can the TPS62082DSGT operate with input voltage equal to its 3.3-V output?
Yes - the TPS62082DSGT supports 100% duty-cycle operation, enabling regulation down to VIN ≈ VOUT + IOUT × RDS(on)_HS. At 1.2-A load, minimum VIN is ~3.43 V (3.3 V + 1.2 A × 0.095 Ω), allowing extended battery utilization beyond conventional buck converters.
What is the function of the VOS pin on the TPS62082DSGT, and how should it be connected?
The VOS pin on the TPS62082DSGT provides remote output voltage sensing to compensate for PCB trace IR drop. It must be connected directly to the load-side of the output capacitor - not to the regulator's VOUT pad - to maintain ±2.5% regulation accuracy under varying load currents and board layouts.
TPS62082DSGT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- DCS-Control™
- Package/Case:
- 8-WFDFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Function:
- Step-Down
- Output Configuration:
- Positive
- Topology:
- Buck
- Output Type:
- Fixed
- Number of Outputs:
- 1
- Voltage - Input (Min):
- 2.3V
- Voltage - Input (Max):
- 6V
- Voltage - Output (Min/Fixed):
- 3.3V
- Voltage - Output (Max):
- -
- Current - Output:
- 1.2A
- Frequency - Switching:
- 2MHz
- Synchronous Rectifier:
- Yes
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-WSON (2x2)
TPS62082DSGT FAQ
1.How can I place an order for TPS62082DSGT through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS62082DSGT 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 TPS62082DSGT reliable?
The price and inventory of TPS62082DSGT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS62082DSGT is usually 5 days.
3.What payment methods are accepted for TPS62082DSGT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS62082DSGT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS62082DSGT?
TPS62082DSGT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS62082DSGT 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 TPS62082DSGT?
For technical support, including TPS62082DSGT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS62082DSGT requirements.
6.How does Aetrix verify that TPS62082DSGT is sourced from the original manufacturer or authorized distributors?
All TPS62082DSGT 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 TPS62082DSGT meets industry standards.
7.What is the process for return or replacement of TPS62082DSGT?
All TPS62082DSGT units undergo pre-shipment inspection (PSI). If there is an issue with TPS62082DSGT, 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 TPS62082DSGT part is unused and in its original packaging.
Return procedure for TPS62082DSGT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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