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Texas Instruments TPS62080DSGT
- Part No.:
- TPS62080DSGT
- Manufacturer:
- Texas Instruments
- Package:
- 8-WFDFN Exposed Pad
- Datasheet:
-
TPS62080DSGT.pdf
- Description:
- IC REG BUCK ADJ 1.2A 8WSON
- Quantity:
- Payment:
- Shipping:
Inventory:1,099
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Product details
Overview
TPS62080DSGT from Texas Instruments is an adjustable-output, 1.2-A synchronous step-down DC/DC converter with DCS-Control™ architecture, 2.3 V to 6 V input range, 0.5 V to 4 V output range, and ultra-low 6.5 µA quiescent current in Snooze Mode - used for battery-powered portable devices requiring high light-load efficiency and precise voltage regulation.
For engineers reviewing the TPS62080DSGT datasheet, TPS62080DSGT pinout, TPS62080DSGT application, or TPS62080DSGT equivalent, this page delivers verified technical context, validated pin functions, confirmed key specifications including RDS(on) (95 mΩ high-side / 70 mΩ low-side), Snooze Mode behavior, and real-world application implementation guidance - all specific to the TPS62080DSGT WSON-8 package.
Technical Context
The TPS62080DSGT implements DCS-Control™ topology, enabling seamless transition between PWM mode (2 MHz nominal switching frequency) at medium-to-heavy loads and Power Save Mode (PFM) at light loads - maintaining >90% efficiency down to 1 mA. Its internal error amplifier regulates output via FB pin with 0.45 V reference, while VOS pin provides direct output voltage sensing for improved transient response.
Snooze Mode - activated by logic HIGH on MODE pin - disables all non-essential blocks and enables a dedicated low-power monitor, reducing quiescent current to 6.5 µA while sustaining regulation accuracy within ±5% at ≤2 mA load. The device supports 100% duty cycle operation for minimum dropout and includes active output discharge (1 kΩ) during shutdown.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 2.3 V to 6 V - supports single-cell Li-ion, Li-polymer, and multi-cell alkaline/NiMH batteries without external LDO pre-regulation. |
| Output Voltage Range | 0.5 V to 4 V - adjustable via external resistor divider on FB pin; enables flexible core voltage scaling for MCUs, FPGAs, and DSPs. |
| Max Output Current | 1.2 A - sufficient for powering ARM Cortex-M series microcontrollers, wireless SoCs, and sensor hubs with margin. |
| Quiescent Current (Snooze) | 6.5 µA - extends battery runtime in always-on, low-duty-cycle applications such as IoT sensors and wearables. |
| RDS(on) High-Side | 95 mΩ - minimizes conduction loss at full load, enabling high efficiency (>92%) at 1 A with 3.6 V input → 1.2 V output. |
| Switching Frequency | 2 MHz nominal - allows use of compact 1 µH inductors and ceramic capacitors, reducing solution footprint and EMI filtering complexity. |
| Power Good Accuracy | ±5% threshold hysteresis - ensures reliable rail sequencing and system reset signaling in multi-rail power architectures. |
Pinout & Package
TPS62080DSGT is housed in an 8-pin WSON package (2.0 mm × 2.0 mm) with exposed thermal pad soldered to PCB ground for enhanced thermal dissipation (RθJA = 59.7°C/W).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| EN | Enable logic input | Active-HIGH enable; must be pulled to VIN or controlled by host MCU - floating state causes undefined operation. |
| GND | Power and signal ground | Common return path for power switches, control circuitry, and thermal pad connection - critical for noise immunity and thermal performance. |
| MODE | Snooze Mode control input | Logic HIGH activates ultra-low-IQ Snooze Mode; logic LOW disables it for optimal transient response above 2 mA load. |
| FB | Feedback input | Connects to resistor divider to set output voltage; regulated to 0.45 V - determines VOUT = 0.45 × (1 + R1/R2). |
| VOS | Output voltage sense | Direct connection to output rail - improves load transient response by eliminating feedback path delay and PCB trace impedance effects. |
| PG | Open-drain Power Good output | Asserts LOW when VOUT drops below 90–95% of target - requires external pull-up for rail sequencing or system monitoring. |
| SW | Switch node | Connects to inductor and internal high/low-side MOSFETs - carries high di/dt switching current; requires tight layout and low-inductance routing. |
| VIN | Main power input | Accepts 2.3–6 V supply; feeds internal bias rails and power stage - requires local 10 µF ceramic decoupling close to pin. |
Key Features
| Feature | Design Value |
|---|---|
| DCS-Control™ Architecture | Enables <10 µs load transient recovery with <1% output deviation - eliminates need for external compensation components. |
| Snooze Mode | Reduces IQ to 6.5 µA while maintaining regulation - extends battery life in standby by up to 3× vs standard PFM mode. |
| 100% Duty Cycle Operation | Supports VIN – VOUT as low as 100 mV - maximizes usable battery voltage range in single-cell Li-ion systems. |
| Active Output Discharge | 1 kΩ internal discharge path via SW pin - prevents floating output during disable, ensuring safe power-down sequencing. |
| Integrated Thermal Shutdown | Triggers at 150°C junction temperature with 20°C hysteresis - protects against sustained overload or poor heatsinking without external circuitry. |
Applications
| Battery-Powered Portable Devices | Point-of-Load Regulation |
|---|---|
|
Use Scenario: Wearable health monitor powered by coin-cell or thin Li-polymer battery with intermittent sensor sampling and BLE transmission. IC Role / Device Role / Timing Role: Primary system regulator delivering 1.8 V to MCU and 3.3 V to RF transceiver via dual-output configuration using TPS62080DSGT-based buck stages. Use Value: Snooze Mode reduces average IQ to 6.5 µA during 95% sleep time, extending battery life beyond 12 months on CR2032. |
Use Scenario: FPGA core voltage supply in industrial edge gateway requiring tight regulation and fast transient response to logic switching. IC Role / Device Role / Timing Role: Adjustable 0.85 V core rail regulator with VOS-sensed feedback loop - dynamically tracks FPGA VCCINT requirements across process/voltage/temp corners. Use Value: DCS-Control™ achieves <50 mV undershoot under 1 A step load, eliminating need for oversized bulk capacitance. |
| System Power Rail Conversion | Low-Power Microcontroller Supply |
|
Use Scenario: Multi-rail power management in smart meter with separate 3.3 V analog, 1.2 V digital, and 5 V interface rails. IC Role / Device Role / Timing Role: Secondary buck converter generating 1.2 V digital rail from 3.3 V intermediate bus - coordinated via PG-to-EN daisy-chain sequencing. Use Value: PG output provides accurate rail-good status with ±5% hysteresis, enabling deterministic power-up sequence without external supervisors. |
Use Scenario: Always-on sub-system in automotive body controller with wake-on-LIN capability and <10 µA total system standby current. IC Role / Device Role / Timing Role: Ultra-low-IQ regulator supplying 3.3 V to LIN transceiver and microcontroller RTC domain - MODE pin driven by MCU GPIO. Use Value: Snooze Mode maintains 3.3 V regulation at 100 nA load with only 6.5 µA IQ, meeting ISO 16750-2 Class D quiescent current targets. |
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; 1 kΩ output discharge; same package and pinout. | No external feedback resistors required; optimized for 1.8 V logic rails. | Select when fixed 1.8 V output suffices and board space for FB divider is constrained. |
| TPS62082DSGT | Fixed 3.3 V output; identical quiescent current and DCS-Control™ performance. | Eliminates feedback network; simplifies BOM and layout for 3.3 V I/O or analog supplies. | Choose for 3.3 V applications where adjustable output is unnecessary and design validation time is critical. |
Compared with TPS62080DSGT, TPS62081DSGT and TPS62082DSGT offer identical thermal, transient, and efficiency characteristics but eliminate the FB divider - reducing component count and layout sensitivity at the cost of output voltage flexibility.
Availability
TPS62080DSGT is available at Aetrix Electronics and suitable for battery-powered portable devices, point-of-load regulators, and system power rail voltage conversion requiring stable component supply, long-term lifecycle support, and consistent parametric performance across production batches.
Supply support for TPS62080DSGT 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 headquartered in Dallas, Texas, specializing in analog, embedded processing, and power management technologies with over 90 years of innovation in industrial, automotive, and consumer electronics.
The TPS6208x family was designed specifically for high-efficiency, low-quiescent-current DC/DC conversion in space-constrained, battery-sensitive applications - emphasizing DCS-Control™ stability, Snooze Mode runtime extension, and WSON-packaged thermal performance.
FAQ
What is the function of the VOS pin on the TPS62080DSGT?
The VOS pin on the TPS62080DSGT provides direct sensing of the output voltage at the load, bypassing PCB trace resistance and inductance. This improves load transient response and regulation accuracy - especially critical in high-current or remote-sensing applications. It must be connected directly to the output capacitor's positive terminal, not to the SW node or FB divider.
Does the TPS62080DSGT support 100% duty cycle operation, and how does it benefit system design?
Yes, the TPS62080DSGT supports true 100% duty cycle operation, where the high-side MOSFET remains continuously on and the low-side FET stays off. This enables regulation down to VIN – VOUT ≈ 100 mV, maximizing usable battery voltage - for example, sustaining 1.2 V output until Li-ion cell voltage drops to ~1.3 V, significantly extending runtime in single-cell systems.
How does Snooze Mode affect the TPS62080DSGT's regulation accuracy and response time?
In Snooze Mode (MODE = HIGH), the TPS62080DSGT maintains output regulation within ±5% accuracy at loads ≤2 mA, but its load transient response slows due to reduced control-loop bandwidth. The device wakes fully within microseconds if VOUT deviates >3.5% - making Snooze Mode ideal for static or very low-duty-cycle loads, not dynamic ones.
Can the TPS62080DSGT be used with ceramic output capacitors larger than 100 µF?
Yes, the TPS62080DSGT's internally compensated DCS-Control™ loop supports ceramic output capacitors exceeding 100 µF - unlike many voltage-mode controllers requiring strict ESR constraints. This enables lower output ripple, improved hold-up time, and relaxed layout constraints without stability risk.
What is the purpose of the PG (Power Good) pin on the TPS62080DSGT, and how should it be interfaced?
The PG pin on the TPS62080DSGT is an open-drain output that asserts LOW when VOUT falls below 90–95% of its nominal value. It requires an external pull-up resistor (typically 10–100 kΩ to VIN or system rail) and is commonly used to enable downstream converters or trigger system reset - ensuring safe, sequenced power-up and fault detection.
TPS62080DSGT 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:
- Adjustable
- Number of Outputs:
- 1
- Voltage - Input (Min):
- 2.3V
- Voltage - Input (Max):
- 6V
- Voltage - Output (Min/Fixed):
- 0.5V
- Voltage - Output (Max):
- 4V
- 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)
TPS62080DSGT FAQ
1.How can I place an order for TPS62080DSGT through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS62080DSGT 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 TPS62080DSGT reliable?
The price and inventory of TPS62080DSGT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS62080DSGT is usually 5 days.
3.What payment methods are accepted for TPS62080DSGT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS62080DSGT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS62080DSGT?
TPS62080DSGT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS62080DSGT 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 TPS62080DSGT?
For technical support, including TPS62080DSGT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS62080DSGT requirements.
6.How does Aetrix verify that TPS62080DSGT is sourced from the original manufacturer or authorized distributors?
All TPS62080DSGT 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 TPS62080DSGT meets industry standards.
7.What is the process for return or replacement of TPS62080DSGT?
All TPS62080DSGT units undergo pre-shipment inspection (PSI). If there is an issue with TPS62080DSGT, 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 TPS62080DSGT part is unused and in its original packaging.
Return procedure for TPS62080DSGT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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