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Texas Instruments TPS62080ADSGR
- Part No.:
- TPS62080ADSGR
- Manufacturer:
- Texas Instruments
- Package:
- 8-WFDFN Exposed Pad
- Datasheet:
-
TPS62080ADSGR.pdf
- Description:
- IC REG BUCK ADJ 1.2A 8WSON
- Quantity:
- Payment:
- Shipping:
Inventory:21,438
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Product details
Overview
TPS62080ADSGR from Texas Instruments is a 1.2-A synchronous step-down DC-DC converter with DCS-Control™ architecture, designed for battery-powered portable devices and point-of-load regulation. It operates from 2.3 V to 6 V input, delivers adjustable output (0.5 V to 4 V), achieves 6.5 µA quiescent current in Snooze Mode, and integrates high-side/low-side N-MOSFETs with 95 mΩ/70 mΩ RDS(on) in a thermally enhanced 2-mm × 2-mm WSON package.
For engineers reviewing the TPS62080ADSGR datasheet, TPS62080ADSGR pinout, TPS62080ADSGR application, or TPS62080ADSGR equivalent, key selection considerations include ultra-low quiescent current in Snooze Mode, 2 MHz nominal switching frequency, integrated output discharge (40 Ω), power-good signaling, and seamless PWM-to-PFM transition across load range.
Technical Context
The TPS62080ADSGR implements DCS-Control™ topology-combining voltage-mode control with hysteretic-like transient response-enabling fast load-step regulation while maintaining stable loop behavior across input and load variations. Its dual-mode operation (PWM at medium/heavy loads, Power Save Mode at light loads) ensures high efficiency from 1 mA to 1.2 A without external compensation.
Snooze Mode, enabled via the MODE pin, activates a dedicated low-power monitoring block that wakes only when output voltage deviates >3.5% from regulation, reducing quiescent current to 6.5 µA at zero load. The device supports 100% duty cycle operation for minimum dropout and includes integrated thermal shutdown (150°C), undervoltage lockout (1.8 V–2.0 V), and open-drain power-good output with 5% hysteresis.
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 pre-regulation. |
| Output Voltage Range | 0.5 V to 4.0 V (adjustable) - set via external resistor divider; FB pin regulated at 0.45 V ±2.5%. |
| Max Output Current | 1.2 A continuous - limited by internal 1.6–4 A peak inductor current limit and thermal design in WSON package. |
| Quiescent Current | 6.5 µA in Snooze Mode - extends battery runtime in standby; 30 µA in normal operation at no load. |
| Switching Frequency | 2 MHz nominal - enables use of small 1-µH inductors and compact ceramic output capacitors (≥10 µF). |
| RDS(on) High-Side/Low-Side | 95 mΩ / 70 mΩ - minimizes conduction loss at full load; specified at ISW = 500 mA and TJ = 25°C. |
| Output Discharge Resistance | 40 Ω - actively discharges VOUT during shutdown (EN = LOW), preventing floating rail issues in sequenced systems. |
Pinout & Package
TPS62080ADSGR is housed in an 8-pin WSON (DSG) package with 2.00 mm × 2.00 mm body size and exposed thermal pad soldered to PCB ground for optimal thermal performance (RθJA = 59.7°C/W).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| EN (Pin 1) | Enable logic input | Active-HIGH enable; must be terminated-floating causes undefined operation; pulls VIN current <7 µA in shutdown. |
| GND (Pin 2) | Power and signal ground | Primary return path for power switches, control circuitry, and thermal pad connection point. |
| MODE (Pin 3) | Snooze Mode control | Logic HIGH enables ultra-low-IQ mode (6.5 µA); logic LOW disables Snooze for better transient response above 2 mA load. |
| FB (Pin 4) | Feedback input | Connects to resistor divider; regulates output by holding voltage at 0.45 V; bias current ≤100 nA enables high-resistor dividers. |
| VOS (Pin 5) | Output voltage sense | Direct connection to VOUT node; improves regulation accuracy by sensing at load rather than at SW node. |
| PG (Pin 6) | Open-drain power-good | Asserts low when VOUT falls below 90% of nominal; requires external pull-up; used for rail sequencing or system monitoring. |
| SW (Pin 7) | Switch node | Connects to inductor; carries high-frequency AC current; layout critical for EMI and efficiency. |
| VIN (Pin 8) | Input supply | Accepts 2.3–6 V; bypassed with ≥10 µF ceramic capacitor close to pin; UVLO triggers at 1.8 V falling. |
Key Features
| Feature | Design Value |
|---|---|
| DCS-Control™ Architecture | Enables single-loop control with seamless PWM-to-PFM transition-no external compensation required and <1% output deviation during 100-mA load steps. |
| Snooze Mode | Reduces IQ to 6.5 µA at zero load while maintaining regulation-extends battery life in always-on IoT sensors and wearables. |
| Integrated Output Discharge | 40 Ω internal FET discharges VOUT when EN = LOW-eliminates need for external discharge circuit in power-rail sequencing designs. |
| 100% Duty Cycle Operation | Maintains regulation down to VIN = VOUT + IOUT×RDS(on)-maximizes usable battery voltage range in single-cell applications. |
| Power-Good Output | Open-drain PG with 5% hysteresis and 0.3 V max VOL at 500 µA sink-supports reliable multi-rail power-up sequencing without additional supervisors. |
Applications
| Wearable Health Monitor | Industrial Sensor Node |
|---|---|
|
Use Scenario: Continuous ECG/PPG sensing with Bluetooth LE transmission in coin-cell–powered wristband. IC Role / Device Role / Timing Role: Primary buck regulator supplying 1.2 V to MCU and analog front-end; Snooze Mode active during sensor idle periods. Use Value: 6.5 µA quiescent current extends coin-cell life beyond 12 months; 2 MHz switching avoids interference with RF bands. |
Use Scenario: Battery-backed environmental sensor (temp/humidity/pressure) deployed in remote industrial sites. IC Role / Device Role / Timing Role: Point-of-load regulator converting 3.6 V Li-SOCl₂ battery to 3.3 V for microcontroller and transceiver. Use Value: 100% duty cycle operation sustains regulation until battery drops to 3.35 V; integrated PG signals MCU when rail degrades. |
| Smart Home Hub Controller | Portable Medical Diagnostic Device |
|
Use Scenario: Always-on voice assistant hub powered by USB or 5 V wall adapter with low-standby requirement. IC Role / Device Role / Timing Role: Secondary buck delivering 1.8 V to memory and audio codec; MODE pin controlled by host MCU. Use Value: Snooze Mode reduces standby power to <15 µW-meets Energy Star Level VI and EU CoC Tier 2 requirements. |
Use Scenario: Handheld ultrasound or glucose meter requiring rapid wake-from-sleep and precise analog rail stability. IC Role / Device Role / Timing Role: Low-noise, high-transient-response buck supplying 1.2 V to ADC and FPGA core logic. Use Value: DCS-Control™ achieves <15 mV undershoot on 100-mA load step; VOS pin minimizes IR drop error at load point. |
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 resistor; same package and pinout. | Eliminates feedback resistors but lacks output adjustability; higher IQ (30 µA) in normal mode. | Select when fixed 1.8 V rail is required and board space for R1/R2 is constrained. |
| TPS62840DLCR | Lower IQ (300 nA in shutdown, 150 nA in LP mode); 2.4 V–6.5 V input; 0.6 V–5.5 V output; 1.4 A rating. | Superior ultra-low-power performance but requires different compensation and layout due to higher bandwidth. | Prefer for new designs targeting sub-µA standby; not drop-in-requires redesign of feedback and loop compensation. |
Compared with TPS62080ADSGR, TPS62081DSGR offers plug-and-play simplicity for 1.8 V rails but sacrifices adjustability and Snooze Mode efficiency, while TPS62840DLCR delivers deeper sleep states at the cost of increased design complexity and non-interchangeable pin functions.
Availability
TPS62080ADSGR is available at Aetrix Electronics and suitable for battery-powered portable devices, industrial sensor nodes, and smart home controller power rails requiring stable component supply, long-term lifecycle support, and consistent parametric performance across production batches.
Supply support for TPS62080ADSGR 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 ICs for industrial, automotive, and consumer markets.
The TPS6208x family was developed to address high-efficiency, ultra-low-quiescent-current DC-DC conversion in space-constrained, battery-sensitive applications-emphasizing seamless light-load efficiency, robust transient response, and minimal external component count.
FAQ
What is the function of the MODE pin on the TPS62080ADSGR?
The MODE pin on the TPS62080ADSGR enables Snooze Mode when driven HIGH, reducing quiescent current to 6.5 µA for ultra-low-power operation at light or no load. When MODE is LOW, Snooze Mode is disabled, optimizing transient response for loads above 2 mA. The pin must be actively driven-leaving it floating may cause erratic behavior. This functionality is confirmed in the Electrical Characteristics table and Functional Block Diagram of the TPS62080ADSGR datasheet.
Does the TPS62080ADSGR support 100% duty cycle operation, and how does it benefit system design?
Yes, the TPS62080ADSGR supports 100% duty cycle operation, where the high-side MOSFET remains continuously ON and the low-side FET stays OFF. This allows regulation down to VIN = VOUT + IOUT × RDS(on), maximizing usable battery voltage range-especially valuable in single-cell Li-ion applications. The feature is explicitly documented in Section 8.3.2 of the TPS62080ADSGR datasheet and verified in typical application schematics.
How does the output discharge function work on the TPS62080ADSGR, and what is its resistance value?
The TPS62080ADSGR integrates an active output discharge path that engages when EN is pulled LOW, discharging the output capacitor through an internal 40 Ω resistor. This prevents floating VOUT conditions during power-down and eliminates the need for external discharge circuitry. The 40 Ω value is specific to the TPS62080A variant (including TPS62080ADSGR) and differs from the 1 kΩ in standard TPS62080 devices-confirmed in Table 5 (Device Comparison) and Section 7.5 (Electrical Characteristics) of the datasheet.
Can the TPS62080ADSGR be used with a pre-biased output capacitor?
Yes, the TPS62080ADSGR supports start-up into a pre-biased output capacitor. During enable, the device detects the existing VOUT voltage and ramps up smoothly to the target level without forcing reverse current into the output. This capability is explicitly stated in Section 8.3.4 (Soft-Start) and validated in Figure 27 and Figure 29 of the TPS62080ADSGR datasheet, making it suitable for hot-swap and rail-sequencing applications.
What is the purpose of the VOS pin on the TPS62080ADSGR, and how should it be connected?
The VOS (Voltage Output Sense) pin on the TPS62080ADSGR provides remote output voltage sensing to compensate for PCB trace IR drop between the converter and load. It must be connected directly to the load-side of the output capacitor or at the point-of-load to improve regulation accuracy-especially critical in high-current or long-trace applications. This connection method is mandated in Section 9.2.2.1 and Figure 7 of the TPS62080ADSGR datasheet.
TPS62080ADSGR 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)
TPS62080ADSGR FAQ
1.How can I place an order for TPS62080ADSGR through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS62080ADSGR 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 TPS62080ADSGR reliable?
The price and inventory of TPS62080ADSGR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS62080ADSGR is usually 5 days.
3.What payment methods are accepted for TPS62080ADSGR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS62080ADSGR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS62080ADSGR?
TPS62080ADSGR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS62080ADSGR 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 TPS62080ADSGR?
For technical support, including TPS62080ADSGR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS62080ADSGR requirements.
6.How does Aetrix verify that TPS62080ADSGR is sourced from the original manufacturer or authorized distributors?
All TPS62080ADSGR 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 TPS62080ADSGR meets industry standards.
7.What is the process for return or replacement of TPS62080ADSGR?
All TPS62080ADSGR units undergo pre-shipment inspection (PSI). If there is an issue with TPS62080ADSGR, 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 TPS62080ADSGR part is unused and in its original packaging.
Return procedure for TPS62080ADSGR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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