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Texas Instruments TPS62080DSGR
- Part No.:
- TPS62080DSGR
- Manufacturer:
- Texas Instruments
- Package:
- 8-WFDFN Exposed Pad
- Datasheet:
-
TPS62080DSGR.pdf
- Description:
- IC REG BUCK ADJ 1.2A 8WSON
- Quantity:
- Payment:
- Shipping:
Inventory:7,780
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Product details
Overview
TPS62080DSGR 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, 6.5 µA Snooze Mode quiescent current, and 2 MHz nominal switching frequency - used for battery-powered portable devices requiring ultra-low standby power and tight load transient regulation.
For engineers reviewing the TPS62080DSGR datasheet, TPS62080DSGR pinout, TPS62080DSGR application, or TPS62080DSGR equivalent, key selection criteria include its adjustable output (0.5–4.0 V), 8-pin WSON package with thermal pad, integrated high/low-side MOSFETs (95 mΩ / 70 mΩ RDS(on)), Power Good signal, and Snooze Mode enable via MODE pin.
Technical Context
The TPS62080DSGR implements DCS-Control™ topology - a single-loop architecture enabling seamless transition between PWM mode (fixed ~2 MHz at medium/heavy loads) and Power Save Mode (variable-frequency PFM at light loads) without output voltage disturbance. It supports 100% duty cycle operation for lowest dropout in battery-depleted conditions.
Its internal error amplifier regulates FB pin to 0.45 V (±1.5%), while VOS senses output directly for improved accuracy; Snooze Mode activates a dedicated low-power monitoring block that wakes only when output drops >3.5% below target - reducing quiescent current to 6.5 µA while maintaining regulation at sub-2 mA loads.
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 4.0 V - adjustable via external resistor divider; FB reference = 0.45 V ±1.5% enables precise setting of system rail voltages. |
| Max Output Current | 1.2 A continuous - sufficient for powering microcontrollers, sensors, and RF ICs in space-constrained portable designs. |
| Quiescent Current (Snooze) | 6.5 µA typical - extends battery runtime in always-on, low-duty-cycle applications like IoT sensors and wearables. |
| Switching Frequency | ~2 MHz nominal in PWM mode - allows use of small 1 µH inductors and compact ceramic output capacitors (e.g., 10 µF + 22 µF). |
| RDS(on) High-Side | 95 mΩ typical - minimizes conduction loss at 1.2 A, supporting >90% peak efficiency across 3.3 V → 1.2 V conversion. |
| Power Good Accuracy | –10% threshold with 5% hysteresis - provides reliable sequencing signal for downstream logic or other regulators. |
Pinout & Package
TPS62080DSGR is housed in an 8-pin WSON package (2.0 mm × 2.0 mm) with exposed thermal pad soldered to PCB ground for thermal management and mechanical reliability.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| EN | Enable input | Active-high logic control; must be pulled HIGH to activate regulator; floating state disables device. |
| GND | Power and signal ground | Common return path for VIN, SW, PG, FB, MODE, VOS; connects to thermal pad for heat dissipation. |
| MODE | Snooze Mode control | Logic HIGH enables ultra-low-IQ Snooze Mode; LOW disables it for optimal transient response above 2 mA load. |
| FB | Feedback input | Monitors voltage divider output; regulates VOUT by holding FB at 0.45 V; requires external R1/R2 for adjustable versions. |
| VOS | Output voltage sense | Direct connection to regulated output improves line/load regulation accuracy by compensating for PCB trace resistance. |
| PG | Power Good open-drain | Asserts LOW when VOUT falls <90% of target; requires external pull-up for rail sequencing or system monitoring. |
| SW | Switch node | Connects to inductor; carries high di/dt switching current; layout critical to minimize EMI and voltage spikes. |
| VIN | Input supply | Accepts 2.3–6 V; includes undervoltage lockout (1.8–2.0 V threshold) with 120 mV hysteresis to prevent erratic startup. |
Key Features
| Feature | Design Value |
|---|---|
| DCS-Control™ Architecture | Enables single-loop control with seamless PWM-to-PFM transition - eliminates output voltage glitch during mode change and maintains <1% regulation error under dynamic load steps. |
| Snooze Mode | Reduces IQ to 6.5 µA at zero load while preserving regulation - extends battery life in sleep-state IoT nodes without sacrificing wake-up responsiveness. |
| 100% Duty Cycle Operation | Allows VOUT maintenance down to VIN ≈ VOUT + IOUT×RDS(on) - maximizes usable battery voltage range in Li-ion systems (e.g., 3.0 V → 1.2 V until cell drops to ~1.3 V). |
| Integrated Output Discharge | Activates ~1 kΩ discharge path via SW pin during shutdown - prevents residual VOUT from interfering with system reset or causing latch-up in downstream logic. |
| Thermal Shutdown & UVLO | Protects against overtemperature (>150°C) and brownout (<1.8 V); includes 20°C hysteresis and 120 mV UVLO hysteresis for stable restart behavior. |
Applications
| Battery-Powered Portable Devices | Point-of-Load Regulation |
|---|---|
Use Scenario: Wearable health monitor operating on single-cell Li-polymer battery with intermittent sensor sampling and BLE transmission. IC Role / Device Role / Timing Role: Primary system power rail converter delivering 1.8 V to MCU and 3.3 V to radio; manages deep-sleep current budget. Use Value: Snooze Mode cuts no-load IQ to 6.5 µA - increasing battery life from 7 to >14 days in 95% sleep duty cycle. | Use Scenario: FPGA core voltage rail in industrial edge controller requiring fast transient response to logic switching. IC Role / Device Role / Timing Role: Local DC-DC converter stepping 5 V intermediate rail to 1.2 V FPGA core supply; handles 0–1 A load steps within 10 µs. Use Value: DCS-Control™ achieves <15 mV undershoot on 1 A step - avoids logic errors and eliminates need for large bulk capacitance. |
| System Power Rail Conversion | Low-Power Sensor Node Supply |
Use Scenario: Smart meter with multiple isolated subsystems (RTC, metrology, comms) sharing a common 3.6 V battery source. IC Role / Device Role / Timing Role: Generates clean, sequenced 1.2 V, 2.5 V, and 3.3 V rails using PG-driven EN chaining; supports cold-start from depleted battery. Use Value: 100% duty cycle operation sustains 1.2 V output until VIN drops to 1.25 V - recovers full battery capacity not accessible with fixed-dropout regulators. | Use Scenario: Wireless environmental sensor node powered by coin cell, transmitting data every 5 minutes. IC Role / Device Role / Timing Role: Supplies 3.0 V to analog front-end and microcontroller; enters Snooze Mode between transmissions. Use Value: Integrated output discharge ensures rapid VOUT collapse after shutdown - preventing leakage-induced false wake-ups or memory corruption. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar step-down converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS62081DSGR | 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 output voltage is fixed and board space for R1/R2 is constrained. |
| TPS62082DSGR | Fixed 3.3 V output; identical quiescent current, efficiency, and protection features. | Eliminates feedback network; simplifies design for 3.3 V I/O or analog supply rails. | Choose for 3.3 V applications where adjustable output adds unnecessary complexity. |
Compared with TPS62080DSGR, TPS62081DSGR and TPS62082DSGR offer identical thermal performance, package, and protection features but eliminate external feedback components - trading adjustability for reduced BOM count and layout area in fixed-voltage use cases.
Availability
TPS62080DSGR 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 lots.
Supply support for TPS62080DSGR 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, embedded processing, and power management technologies, with leadership in high-efficiency DC-DC conversion and precision power solutions.
The TPS6208x product line was designed specifically for ultra-low-power, high-transient-performance step-down regulation in space- and energy-constrained battery-operated systems - emphasizing Snooze Mode efficiency, DCS-Control™ stability, and WSON package thermal performance.
FAQ
What is the recommended output capacitor configuration for TPS62080DSGR?
The TPS62080DSGR supports a wide range of output capacitors, with typical designs using a 10 µF ceramic capacitor (X5R, 0603) in parallel with a 22 µF ceramic capacitor (X5R, 0805). This combination ensures low impedance across 100 kHz–10 MHz, minimizing output ripple (<20 mV) and improving transient response. The device's DCS-Control™ loop remains stable with ≥100 µF total capacitance, enabling flexibility for noise-sensitive applications like RF or precision analog circuits. Always verify layout per TI's TPS62080DSGR reference design.
How does Snooze Mode affect the load transient response of TPS62080DSGR?
Snooze Mode reduces TPS62080DSGR's quiescent current to 6.5 µA but deactivates most control circuitry - resulting in slower wake-up and degraded transient response. When load jumps above ~2 mA, the device exits Snooze Mode and resumes full regulation, but recovery time increases to ~50 µs versus <10 µs in normal mode. For applications with frequent or large load transients (e.g., MCU burst operation), TI recommends disabling Snooze Mode via MODE = LOW. The TPS62080DSGR datasheet specifies this trade-off explicitly in Section 8.4.3.
Can TPS62080DSGR operate with an input voltage lower than its output voltage?
No - the TPS62080DSGR is a buck (step-down) converter and cannot boost voltage. However, it supports 100% duty cycle operation, allowing VOUT maintenance when VIN approaches VOUT (e.g., 1.25 V input sustaining 1.2 V output). This is achieved by holding the high-side FET fully on and disabling the low-side FET. The minimum VIN is calculated as VOUT + IOUT × RDS(on) - for 1.2 A at 1.2 V, RDS(on) = 95 mΩ yields VIN,MIN ≈ 1.31 V. Below this, regulation is lost.
What is the function of the VOS pin on TPS62080DSGR, and is it mandatory to connect?
The VOS (Voltage Output Sense) pin on TPS62080DSGR provides remote output voltage sensing to compensate for IR drop across PCB traces between the regulator and load. It must be connected directly to the load-side of the output capacitor for highest accuracy - especially critical in high-current or long-trace applications. Leaving VOS unconnected defaults regulation to the FB pin, which measures at the converter's output pad and may introduce up to ±2% error due to trace resistance. TI's datasheet Figure 27 confirms VOS connection improves load regulation from ±1.5% to ±0.5%.
Does TPS62080DSGR require an external soft-start capacitor?
No - the TPS62080DSGR integrates soft-start functionality with a fixed ~40 µs enable delay and ~10 mV/µs output ramp rate. This eliminates the need for external soft-start capacitors and prevents inrush current during startup, even into pre-biased outputs. The internal soft-start also enables reliable start-up with high-impedance sources like primary alkaline cells. TI validates this behavior in Section 8.3.4 and Figure 27 of the TPS62080DSGR datasheet, confirming no external components are needed for controlled VOUT rise.
TPS62080DSGR 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)
TPS62080DSGR FAQ
1.How can I place an order for TPS62080DSGR through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS62080DSGR 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 TPS62080DSGR reliable?
The price and inventory of TPS62080DSGR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS62080DSGR is usually 5 days.
3.What payment methods are accepted for TPS62080DSGR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS62080DSGR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS62080DSGR?
TPS62080DSGR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS62080DSGR 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 TPS62080DSGR?
For technical support, including TPS62080DSGR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS62080DSGR requirements.
6.How does Aetrix verify that TPS62080DSGR is sourced from the original manufacturer or authorized distributors?
All TPS62080DSGR 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 TPS62080DSGR meets industry standards.
7.What is the process for return or replacement of TPS62080DSGR?
All TPS62080DSGR units undergo pre-shipment inspection (PSI). If there is an issue with TPS62080DSGR, 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 TPS62080DSGR part is unused and in its original packaging.
Return procedure for TPS62080DSGR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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