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Texas Instruments TPS62065DSGT
- Part No.:
- TPS62065DSGT
- Manufacturer:
- Texas Instruments
- Package:
- 8-WFDFN Exposed Pad
- Datasheet:
-
TPS62065DSGT.pdf
- Description:
- IC REG BUCK ADJ 2A 8WSON
- Quantity:
- Payment:
- Shipping:
Inventory:1,615
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Product details
Overview
TPS62065DSGT from Texas Instruments is a synchronous step-down DC/DC converter delivering up to 2 A output current with 3-MHz fixed-frequency PWM or power-save PFM operation. It accepts 2.9 V–6 V input, regulates adjustable output voltages (0.8 V–VIN), and features ±1.5% feedback accuracy in PWM mode, 18 µA quiescent current, and internal output capacitor discharge. It serves as a compact POL regulator in space-constrained portable systems.
For engineers reviewing the TPS62065DSGT datasheet, TPS62065DSGT pinout, TPS62065DSGT application, or TPS62065DSGT equivalent, key selection criteria include its 2-mm × 2-mm WSON-8 package, MODE-pin controllable PWM/PSM transition, absence of power-good output, and compatibility with 1-µH inductors and 10-µF ceramic capacitors for minimal solution footprint.
Technical Context
The TPS62065DSGT employs voltage-mode control with input-voltage feed-forward for fast line/load regulation and supports automatic PFM-to-PWM transition at light loads. Its MODE pin directly selects between forced 3-MHz PWM (for low-noise filtering) and auto PFM/PWM (for peak efficiency across load range).
It integrates high-side and low-side MOSFETs with typical RDS(on) of 120 mΩ (HS) and 90 mΩ (LS) at 3.6 V, enables 100% duty-cycle operation near dropout, and includes clock dithering (±6 ns) to suppress EMI harmonics - all within a thermally enhanced PowerPAD-equipped WSON package.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 2.9 V to 6 V - supports direct regulation from 3.3-V or 5-V system rails without pre-regulation. |
| Output Current | Up to 2 A - sufficient for core logic, DSP, or memory I/O supplies in portable devices. |
| Switching Frequency | 2.6–3.4 MHz (typ. 3 MHz) - enables use of ultra-small 1-µH inductors and reduces output ripple frequency. |
| Feedback Accuracy | ±1.5% in PWM mode - ensures tight output voltage tolerance under stable load conditions. |
| Quiescent Current | 18 µA (typ.) - maintains high light-load efficiency in battery-powered standby modes. |
| Operating Junction Temp | –40°C to 125°C - qualified for industrial and extended-temperature embedded applications. |
| Shutdown Current | <1 µA - minimizes battery drain during system sleep or off-state. |
Pinout & Package
TPS62065DSGT is housed in an 8-pin, 2.0 mm × 2.0 mm × 0.75 mm WSON package with exposed PowerPAD™ thermal pad (connected to PGND). The package supports high-density PCB layouts and efficient heat dissipation via bottom-side soldering.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| PVIN | Power input (high-current path) | Connects to input capacitor and supplies power stage; requires low-impedance routing. |
| PGND | Power ground | Return path for output stage; must be tied to PowerPAD and separated from AGND at single point. |
| EN | Enable control input | Active-high logic; pulling low disables converter and activates internal output discharge resistor. |
| FB | Feedback input | Monitors output voltage via external resistor divider; sets regulated output (0.8 V reference). |
| MODE | Operation mode select | High = forced PWM; Low = auto PFM/PWM; determines noise-efficiency trade-off in real time. |
| SW | Switch node | Connects to inductor; carries high di/dt switching current - requires short, wide trace and ground guard ring. |
| AGND | Analog ground | Reference for control circuitry; must be isolated from noisy PGND except at single-point tie. |
| AVIN | Analog supply input | Bias supply for control block; must be connected to PVIN and local 10-µF decoupling capacitor. |
Key Features
| Feature | Design Value |
|---|---|
| Power Save Mode + PWM Mode | Automatic PFM/PWM transition maintains ≥90% efficiency from 1 mA to 2 A load - eliminates need for external mode control logic. |
| Voltage Positioning | Regulates output 1% above nominal in PFM mode - provides headroom to absorb load-step undershoot without external compensation. |
| Output Capacitor Discharge | Internal resistor discharges VOUT when EN = GND - prevents floating output and ensures monotonic startup from 0 V. |
| 100% Duty Cycle Operation | Supports dropout as low as ~100 mV at full load - extends usable battery life by regulating down to near-VOUT input voltage. |
| Clock Dithering | ±6 ns frequency modulation spreads EMI energy - simplifies compliance with CISPR-22 Class B conducted emissions limits. |
Applications
| Point-of-Load Regulation | Notebook Core Supply |
|---|---|
Use Scenario: Local voltage conversion for FPGA I/O banks or ASIC auxiliary rails on dense PCBs. IC Role / Device Role / Timing Role: Primary synchronous buck regulator providing tightly regulated, low-noise 1.2 V or 1.8 V at up to 2 A. Use Value: 2-mm × 2-mm footprint and 1-µH inductor support sub-25-mm² total solution size - critical for multi-rail mobile modules. | Use Scenario: Main core voltage supply for Intel Atom or ARM Cortex-A series processors in ultraportable notebooks. IC Role / Device Role / Timing Role: Adjustable-output buck converter delivering 1.0–1.35 V with fast transient response to CPU DVFS demands. Use Value: Voltage positioning and 3-MHz switching enable <100-µs load-step recovery - meets Intel IMVP-7/8 dynamic voltage requirements. |
| DSP Power Management | Portable Media Player SoC |
Use Scenario: Dedicated supply for TI C6000 or Analog Devices SHARC DSPs requiring clean, efficient 1.2 V or 1.4 V. IC Role / Device Role / Timing Role: High-efficiency POL converter with MODE pin enabling PWM-only operation during audio playback to suppress switching noise in analog paths. Use Value: Clock dithering and low output ripple (<10 mVpp) prevent audible beat frequencies in DAC/ADC signal chains. | Use Scenario: System-on-chip (SoC) power rail in Bluetooth headphones or smart speakers with Li-ion battery input. IC Role / Device Role / Timing Role: Input-flexible buck regulator converting 3.3–4.2 V battery to stable 1.1 V SoC core voltage with shutdown current <1 µA. Use Value: 18 µA quiescent current and 100% duty cycle extend playback time by >8% over comparable 2.25-MHz converters at light load. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar step-down converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS62067DSGT | Includes open-drain PG output; lacks MODE pin (auto PFM/PWM only); identical electrical specs otherwise. | Required where power sequencing or fault monitoring is needed; unsuitable if forced PWM mode is mandatory. | Select TPS62067DSGT only when PG signal integration justifies loss of manual MODE control. |
| TPS62130ARGTR | 3-MHz, 3-A output, 2.7–6 V input; larger 3-mm × 3-mm VQFN package; no voltage positioning or clock dithering. | Higher current capability but larger footprint and higher quiescent current (25 µA); no PFM voltage boost. | Choose TPS62130ARGTR only when >2 A output or different thermal profile is required - not a drop-in replacement. |
Compared with TPS62065DSGT, TPS62067DSGT adds power-good signaling at the cost of MODE-pin flexibility, while TPS62130ARGTR trades compactness and advanced PFM features for higher current and simpler control - making TPS62065DSGT optimal for space-constrained, noise-sensitive 2-A POL designs.
Availability
TPS62065DSGT is available at Aetrix Electronics and suitable for point-of-load regulation, notebook core supplies, DSP power management, and portable media player SoC applications requiring stable component supply, long-term lifecycle support, and consistent parametric performance.
Supply support for TPS62065DSGT 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 specializing in analog, embedded processing, and power management ICs, with decades of expertise in high-efficiency DC/DC conversion.
The TPS6206x product line was designed specifically for ultra-compact, high-frequency POL applications in portable and battery-powered electronics - prioritizing small solution size, wide input range, and intelligent light-load efficiency.
FAQ
What is the function of the MODE pin on the TPS62065DSGT?
The MODE pin on the TPS62065DSGT selects between forced fixed-frequency PWM operation (MODE = high) and automatic PFM/PWM mode (MODE = low). In PWM mode, switching remains at 3 MHz regardless of load, reducing output voltage ripple and simplifying EMI filtering. In PFM mode, the device skips pulses at light loads to maintain high efficiency, with voltage positioning active. This pin enables real-time optimization of noise versus efficiency based on system requirements - a key differentiator of the TPS62065DSGT.
Does the TPS62065DSGT include a power-good (PG) output?
No, the TPS62065DSGT does not include a power-good output. That function is implemented exclusively in the TPS62067DSGT variant, which replaces the MODE pin with an open-drain PG signal. The TPS62065DSGT retains the MODE pin for manual PWM/PSM control and omits PG to preserve design flexibility in noise-critical or space-constrained applications where sequencing feedback is handled externally. Users requiring PG should select TPS62067DSGT instead of TPS62065DSGT.
What is the minimum recommended output capacitance for stable operation of the TPS62065DSGT?
The TPS62065DSGT is characterized and optimized for stable operation with a minimum 4.5 µF effective output capacitance, with 10 µF (0603 ceramic) specified as the typical value in the datasheet. Using ≥10 µF ensures adequate phase margin, low output impedance across frequency, and compliance with transient response specifications - especially critical when leveraging voltage positioning for load-step immunity. Lower values may compromise stability or increase output ripple beyond specification, particularly with high-ESR capacitors or elevated temperature.
How does the TPS62065DSGT achieve 100% duty-cycle operation, and what is its practical benefit?
The TPS62065DSGT achieves 100% duty-cycle operation by holding the high-side MOSFET continuously on when input voltage approaches the regulated output voltage - eliminating switching losses and minimizing dropout. This allows regulation down to VIN ≈ VOUT + (IOUT × RDS(on)_HS), extending usable battery voltage range. For example, at 2 A and 120 mΩ RDS(on), dropout is ~240 mV - enabling full utilization of a 3.7-V Li-ion cell down to ~1.2 V output, significantly increasing runtime in portable devices powered by TPS62065DSGT.
Can the TPS62065DSGT be used with an input voltage below 2.9 V?
No, the TPS62065DSGT is not rated for continuous operation below 2.9 V input. Its absolute minimum operating input voltage is 2.9 V per Recommended Operating Conditions, and undervoltage lockout (UVLO) disables the device when VIN falls below ~1.78 V (falling threshold). Attempting to operate below 2.9 V risks instability, reduced efficiency, or failure to regulate. For sub-2.9-V inputs, consider TI's TPS6286xx family (1.8–5.5 V input) or other low-VIN buck regulators - the TPS62065DSGT must be used strictly within its 2.9–6 V specified range.
TPS62065DSGT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- 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):
- 2.9V
- Voltage - Input (Max):
- 6V
- Voltage - Output (Min/Fixed):
- 0.8V
- Voltage - Output (Max):
- 6V
- Current - Output:
- 2A
- Frequency - Switching:
- 3MHz
- Synchronous Rectifier:
- Yes
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-WSON (2x2)
TPS62065DSGT FAQ
1.How can I place an order for TPS62065DSGT through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS62065DSGT 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 TPS62065DSGT reliable?
The price and inventory of TPS62065DSGT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS62065DSGT is usually 5 days.
3.What payment methods are accepted for TPS62065DSGT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS62065DSGT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS62065DSGT?
TPS62065DSGT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS62065DSGT 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 TPS62065DSGT?
For technical support, including TPS62065DSGT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS62065DSGT requirements.
6.How does Aetrix verify that TPS62065DSGT is sourced from the original manufacturer or authorized distributors?
All TPS62065DSGT 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 TPS62065DSGT meets industry standards.
7.What is the process for return or replacement of TPS62065DSGT?
All TPS62065DSGT units undergo pre-shipment inspection (PSI). If there is an issue with TPS62065DSGT, 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 TPS62065DSGT part is unused and in its original packaging.
Return procedure for TPS62065DSGT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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