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Texas Instruments TLV62084DSGR
- Part No.:
- TLV62084DSGR
- Manufacturer:
- Texas Instruments
- Package:
- 8-WFDFN Exposed Pad
- Datasheet:
-
TLV62084DSGR.pdf
- Description:
- IC REG BUCK ADJ 2A 8WSON
- Quantity:
- Payment:
- Shipping:
Inventory:7,995
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Product details
Overview
TLV62084DSGR from Texas Instruments is a 2-A synchronous step-down DC/DC converter in a 2-mm × 2-mm WSON-8 package with thermal pad, operating from 2.7 V to 6 V input and delivering regulated output voltages from 0.5 V to 4 V via external feedback divider; features DCS-Control™ architecture, power good (PG) open-drain output, 100% duty-cycle low-dropout mode, and output discharge function - used in battery-powered SSDs and point-of-load regulation for portable computing.
For engineers reviewing the TLV62084DSGR datasheet, TLV62084DSGR pinout, TLV62084DSGR application, or TLV62084DSGR equivalent, key selection criteria include verified 2-A continuous output current, 2-MHz nominal switching frequency in PWM mode, high-side/low-side MOSFET RDS(on) of 120 mΩ / 90 mΩ, ±10% PG threshold accuracy, and thermal shutdown at 150°C with 20°C hysteresis.
Technical Context
The TLV62084DSGR implements DCS-Control™ topology - a hybrid regulation method combining hysteretic response speed with voltage-mode stability - enabling seamless transition between PWM (2 MHz fixed-frequency) and power-save (PFM) modes without output voltage disturbance. It uses internal compensation compatible with wide output capacitor values (e.g., 22 µF ceramic) and supports pre-biased startup.
Its functional block integrates dual N-MOSFET power stage, error amplifier, ramp generator, soft-start timer (~40 µs delay, ~10 mV/µs slew), undervoltage lockout (VUVLO = 2 V, 120 mV hysteresis), and open-drain PG output with 90–95% VOUT trip threshold and 500 µA sink capability.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Current | 2 A continuous - supports high-current rails like SSD core logic or SoC I/O domains without external current boosting. |
| Input Voltage Range | 2.7 V to 6 V - compatible with single-cell Li-ion (2.7–4.2 V), USB 5 V, and industrial 3.3/5 V supplies. |
| Switching Frequency | 2 MHz nominal in PWM mode - enables compact 1-µH inductor and small ceramic capacitors; frequency drops in PFM for light-load efficiency. |
| RDS(on) High/Low Side | 120 mΩ / 90 mΩ - minimizes conduction loss at full load; enables >90% peak efficiency at 1.2 V/2 A with 3.6 V input. |
| Feedback Reference Voltage | 0.45 V ±2.7% - sets output via resistor divider; allows precise low-VOUT regulation down to 0.5 V. |
| Power Good Threshold | –10% VOUT (typical) - asserts PG low when output falls below 90% of nominal; supports reliable power sequencing with other converters. |
| Quiescent Current | 30 µA - maintains high light-load efficiency; critical for always-on subsystems in portable devices. |
| Thermal Shutdown | 150°C junction temperature with 20°C hysteresis - protects against sustained overload or poor PCB thermal design. |
Pinout & Package
TLV62084DSGR is housed in an 8-terminal WSON package (DSG) measuring 2.00 mm × 2.00 mm with exposed thermal pad soldered to PCB ground for thermal management and mechanical reliability.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - EN | Enable logic input | Active-high control: logic HIGH ≥1 V enables regulation; must be terminated - floating causes undefined operation. |
| 2,3 - GND | Power and signal ground | Dual ground terminals reduce ground loop impedance; both must connect to low-impedance PCB ground plane. |
| 4 - FB | Feedback input | Senses divided output voltage; connects to resistor divider (R1/R2) to set VOUT = 0.45 V × (1 + R1/R2). |
| 5 - VOS | Output voltage sense | Direct connection to output rail; improves regulation accuracy by compensating for PCB trace IR drop. |
| 6 - PG | Power good open-drain output | Sinks current when VOUT < 90% nominal; requires external pull-up (e.g., to VOUT) for sequencing or monitoring. |
| 7 - SW | Switch node | Connects to inductor and high/low-side MOSFETs; carries high di/dt switching current - requires tight layout and Kelvin connection. |
| 8 - VIN | Input power supply | Accepts 2.7–6 V; bypass with 10 µF ceramic capacitor placed near pin to suppress input ripple and EMI. |
| Exposed Pad | Thermal pad | Mandatory GND connection; soldered area provides primary thermal path - essential for sustaining 2 A continuous operation. |
Key Features
| Feature | Design Value |
|---|---|
| DCS-Control™ Architecture | Enables sub-10 µs load transient response and <1% output deviation without external compensation components. |
| 100% Duty-Cycle Mode | Extends usable battery life by maintaining regulation down to VIN = VOUT + IOUT × (RDS(on) + RL), e.g., 1.2 V output from 1.3 V input at 2 A. |
| Output Discharge Function | Internally discharges VOUT through SW terminal (RDIS ≈ 1 kΩ) during shutdown - prevents residual voltage from interfering with downstream logic. |
| Power Save Mode (PFM) | Reduces quiescent current to 30 µA and switches at variable frequency <2 MHz under light loads - achieves >85% efficiency at 1 mA output. |
| Soft Start | 40 µs enable delay followed by 10 mV/µs VOUT ramp - eliminates inrush current and prevents brownout in high-impedance battery sources. |
| Pre-Biased Startup | Allows safe start into pre-charged output capacitors - avoids reverse current flow and ensures monotonic VOUT rise in multi-rail systems. |
Applications
| Battery-Powered SSDs | Point-of-Load Regulation |
|---|---|
Use Scenario: Powering NAND flash controller and DRAM cache in ultra-thin NVMe SSDs with single-cell Li-ion input. IC Role / Device Role / Timing Role: Primary buck regulator delivering stable 1.2 V/2 A to SoC core and 1.8 V/1 A to I/O interface. Use Value: DCS-Control™ ensures <50 mV undershoot during 0→2 A load steps; 100% duty cycle extends runtime by 8–12% over conventional buck ICs. | Use Scenario: Local voltage conversion on compute module carrier boards supplying FPGA I/O banks or ASIC auxiliary rails. IC Role / Device Role / Timing Role: Secondary regulator stepping 5 V or 3.3 V down to 1.0 V, 1.2 V, or 1.8 V with tight transient response. Use Value: 2-MHz switching enables <10 mm² solution size; PG output sequences enable/disable adjacent rails without external logic. |
| Notebook System Rails | Set-Top Box SoC Supplies |
Use Scenario: Generating DDR memory termination voltage (VTT) and auxiliary 1.05 V core rail in fanless ultrabooks. IC Role / Device Role / Timing Role: High-efficiency, low-noise buck converter with minimal output ripple (<10 mVpp) to avoid RF interference. Use Value: Ultra-low quiescent current (30 µA) preserves battery life in standby; thermal pad sustains 2 A continuously at 65°C ambient. | Use Scenario: Powering video decoder SoC and HDMI PHY in cost-sensitive consumer STBs using 5 V wall adapter input. IC Role / Device Role / Timing Role: Main 1.2 V/2 A supply with integrated PG for system reset coordination and fault reporting. Use Value: Output discharge prevents latch-up during hot-swap events; 2.7–6 V range accommodates input tolerance and aging. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar step-down converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLV62084ADSGR | Identical specs except PG output is active-low during shutdown (EN=LOW), whereas TLV62084DSGR holds PG high-impedance. | Required where PG must assert LOW during disable for strict power sequencing (e.g., multi-converter cascades). | Select TLV62084ADSGR only if system-level sequencing mandates PG=LOW in shutdown state. |
| TPS62084DSGR | Same pinout and footprint; higher 3-A rating, lower RDS(on) (80 mΩ/60 mΩ), wider 2.5–6 V input range, and improved light-load efficiency. | Suitable for future-proofing or higher-current variants; not drop-in due to different UVLO and PG behavior. | Choose TPS62084DSGR when 3-A headroom, tighter regulation, or extended input range is required - verify PG logic and enable thresholds. |
Compared with TLV62084ADSGR, TLV62084DSGR offers simpler sequencing in systems where PG high-impedance during shutdown is acceptable; versus TPS62084DSGR, it trades peak current and efficiency for cost and proven qualification in high-volume portable designs.
Availability
TLV62084DSGR is available at Aetrix Electronics and suitable for battery-powered portable devices, solid-state drive (SSD) power management, and point-of-load regulation requiring stable component supply across industrial temperature ranges and multi-year production cycles.
Supply support for TLV62084DSGR 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 leader designing analog and embedded processing solutions for industrial, automotive, and personal electronics markets.
The TLV62084DSGR belongs to TI's TLV6208x family of high-efficiency synchronous buck converters targeting space-constrained, battery-sensitive applications such as portable computing and storage - emphasizing low quiescent current, fast transient response, and minimal external component count.
FAQ
What is the maximum continuous output current supported by the TLV62084DSGR?
The TLV62084DSGR supports up to 2 A continuous output current under recommended operating conditions (TJ ≤ 125°C, proper PCB thermal design). This rating assumes adequate copper area on the thermal pad and ambient temperature ≤ 65°C. Peak current capability reaches 2.8 A per electrical characteristics, but sustained operation above 2 A requires derating based on thermal performance.
Does the TLV62084DSGR require an external compensation network?
No, the TLV62084DSGR does not require external compensation components. Its integrated DCS-Control™ architecture includes internal compensation optimized for standard output capacitor types (e.g., 22 µF X5R/X7R ceramics) and typical inductor values (1 µH). This simplifies design and reduces bill-of-materials cost while maintaining stability across load and line variations.
How does the power good (PG) output behave during device shutdown?
During shutdown (EN = LOW), the TLV62084DSGR's PG pin enters high-impedance state - it neither sinks nor sources current. This differs from the TLV62084ADSGR variant, which drives PG low during shutdown. The TLV62084DSGR's high-Z PG allows flexible pull-up configurations and avoids unintended interactions with downstream enable logic when disabled.
Can the TLV62084DSGR start up into a pre-biased output capacitor?
Yes, the TLV62084DSGR supports pre-biased startup. When enabled, it senses the existing output voltage and ramps VOUT to the target level without forcing reverse current into the output capacitor. This feature prevents potential damage or malfunction in multi-rail systems where other regulators may already be active, ensuring safe and monotonic power-up sequencing.
What is the purpose of the VOS pin on the TLV62084DSGR?
The VOS (voltage output sense) pin on the TLV62084DSGR provides remote output voltage sensing to improve regulation accuracy. By connecting VOS directly to the load-side of the output capacitor, it compensates for voltage drop across PCB traces and inductor DC resistance - critical for maintaining tight output tolerance (±1%) under dynamic load conditions in high-current applications.
TLV62084DSGR 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):
- 2.7V
- Voltage - Input (Max):
- 6V
- Voltage - Output (Min/Fixed):
- 0.5V
- Voltage - Output (Max):
- 4V
- Current - Output:
- 2A
- Frequency - Switching:
- 2MHz
- Synchronous Rectifier:
- Yes
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-WSON (2x2)
TLV62084DSGR FAQ
1.How can I place an order for TLV62084DSGR through Aetrix?
Please submit a Request for Quotation (RFQ) for TLV62084DSGR 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 TLV62084DSGR reliable?
The price and inventory of TLV62084DSGR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLV62084DSGR is usually 5 days.
3.What payment methods are accepted for TLV62084DSGR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLV62084DSGR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLV62084DSGR?
TLV62084DSGR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLV62084DSGR 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 TLV62084DSGR?
For technical support, including TLV62084DSGR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLV62084DSGR requirements.
6.How does Aetrix verify that TLV62084DSGR is sourced from the original manufacturer or authorized distributors?
All TLV62084DSGR 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 TLV62084DSGR meets industry standards.
7.What is the process for return or replacement of TLV62084DSGR?
All TLV62084DSGR units undergo pre-shipment inspection (PSI). If there is an issue with TLV62084DSGR, 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 TLV62084DSGR part is unused and in its original packaging.
Return procedure for TLV62084DSGR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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