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Texas Instruments TPS6282533DMQR
- Part No.:
- TPS6282533DMQR
- Manufacturer:
- Texas Instruments
- Package:
- 6-VFDFN
- Datasheet:
-
TPS6282533DMQR.pdf
- Description:
- IC REG BUCK 3.3V 2A 6VSON
- Quantity:
- Payment:
- Shipping:
Inventory:5,371
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Product details
Overview
TPS6282533DMQR from Texas Instruments is a fixed-output 3.3V, 2A synchronous step-down DC/DC converter in a 1.5mm × 1.5mm 6-pin VSON-HR (DMQ) package. It delivers 1% output voltage accuracy over –40°C to 125°C, operates from 2.4V–5.5V input, features DCS-Control topology, 2.2MHz switching frequency, and 4μA quiescent current - ideal for space-constrained, battery-sensitive applications like IP cameras and SSDs.
For engineers reviewing the TPS6282533DMQR datasheet, TPS6282533DMQR pinout, TPS6282533DMQR application, or TPS6282533DMQR equivalent, key selection factors include its fixed 3.3V output, 2A capability, ultra-low IQ, integrated power-good signal, and compatibility with compact 470nH inductors and minimal external components (single 4.7µF input cap + dual 10µF output caps).
Technical Context
The TPS6282533DMQR implements adaptive constant-on-time DCS-Control with seamless PWM-to-PSM mode transition, enabling fast transient response and high light-load efficiency. Its internal 7.5MΩ feedback divider fixes VOUT at 3.3V, eliminating external resistors while maintaining 1% regulation accuracy across temperature and line.
It integrates 26mΩ high-side and 25mΩ low-side MOSFETs, supports 100% duty-cycle operation for low-dropout scenarios, and includes active output discharge, hiccup short-circuit protection, thermal shutdown (150°C), and a dedicated open-drain power-good output with 100µs deglitch delay.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 3.3V ±1% (3.267–3.333V) - enables direct replacement of LDOs without feedback tuning. |
| Max Output Current | 2A continuous - supports mid-power rails in industrial PCs and multifunction printers. |
| Input Voltage Range | 2.4V to 5.5V - compatible with single-cell Li-ion, USB, and 3.3V/5V system rails. |
| Quiescent Current | 4μA in PSM mode - extends battery runtime in portable electronics and always-on security cameras. |
| Switching Frequency | 2.2MHz nominal - allows use of small 470nH inductors and minimizes EMI filtering footprint. |
| Package | 6-pin VSON-HR (DMQ), 1.5mm × 1.5mm - provides highest power density among 2A buck converters in this family. |
| Thermal Shutdown | 150°C with 20°C hysteresis - ensures safe operation under sustained overload or poor PCB thermal design. |
| Power-Good Output | Open-drain PG with 94–98% rising threshold - enables reliable rail sequencing and system monitoring without external comparators. |
Pinout & Package
TPS6282533DMQR uses a 6-pin, 1.5mm × 1.5mm VSON-HR (DMQ) package with wettable flanks for automated optical inspection. Thermal pad on underside requires solder connection to PCB ground plane for optimal thermal performance (RθJA = 129.5°C/W, RθJB = 33.1°C/W).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| EN (Pin 1) | Enable input | Active-high logic control; VIH ≥ 1.0V, VIL ≤ 0.4V; must not float - ties directly to host MCU GPIO or power sequencer. |
| PG (Pin 2) | Power-good open-drain output | Sinks up to 1mA; requires external pull-up to ≤5.5V rail; signals valid regulation after soft-start completion. |
| FB (Pin 3) | Feedback input | Internally connected to fixed 3.3V divider; must be shorted to VOUT - no external resistor network required. |
| GND (Pin 4) | Ground reference | Primary return path for control circuitry and power stage; must connect to low-impedance PCB ground plane. |
| SW (Pin 5) | Switch node | Connects to inductor and output capacitor; carries high di/dt - requires tight layout and Kelvin grounding for stability. |
| VIN (Pin 6) | Input power supply | Accepts 2.4V–5.5V; requires local 4.7µF ceramic decoupling placed within 2mm of pin. |
Key Features
| Feature | Design Value |
|---|---|
| DCS-Control topology | Delivers <10µs load transient response with minimal output capacitance - critical for FPGA core rail stability. |
| 1% output voltage accuracy | Maintains ±33mV tolerance over –40°C to 125°C junction range - eliminates need for post-regulation trimming in industrial environments. |
| Active output discharge | 75–400mA sink via SW pin during shutdown - prevents floating outputs and ensures clean power-down sequencing. |
| Forced-PWM option (A-version) | TPS62825ADMQ variant maintains CCM and <10mV ripple at all loads - selected when EMI sensitivity outweighs efficiency needs. |
| 100% duty-cycle operation | Enables dropout as low as IOUT×RDS(on) + IOUT×RL - supports brownout resilience in battery-powered systems. |
| Hiccup short-circuit protection | Auto-restarts after 100µs off-time - limits average power dissipation during sustained faults without latching. |
Applications
| IP Network Cameras | Solid State Drives |
|---|---|
Use Scenario: Powering image sensor, ISP, and video encoder in compact outdoor security cameras with wide temperature range. IC Role / Device Role / Timing Role: Primary 3.3V system rail regulator delivering stable, low-noise power with fast transient response to burst-mode imaging. Use Value: 4μA quiescent current extends battery life in solar/wireless deployments; 1% accuracy ensures consistent sensor biasing and ADC reference stability. | Use Scenario: Supplying 3.3V to NAND flash controllers and DRAM buffers in M.2 and U.2 SSD modules. IC Role / Device Role / Timing Role: High-efficiency point-of-load converter supporting dynamic load steps during read/write bursts. Use Value: 2.2MHz switching enables compact LC filter design; DCS-Control maintains <20mV ripple during 0→2A transients - preserving data integrity. |
| Industrial PCs | Multifunction Printers |
Use Scenario: Generating 3.3V for PCIe interface, USB hubs, and real-time OS processors in fanless edge computing units. IC Role / Device Role / Timing Role: Main system rail converter operating from 5V or 12V intermediate bus with strict thermal constraints. Use Value: 1.5mm × 1.5mm DMQ package saves board area; thermal shutdown and PG output enable robust field reliability and diagnostics. | Use Scenario: Powering ASICs, motor drivers, and display controllers in compact office printers with intermittent high-current demands. IC Role / Device Role / Timing Role: Mid-power supply for logic and interface subsystems requiring precise voltage and fault reporting. Use Value: Integrated power-good simplifies power sequencing with main 24V rail; hiccup protection prevents thermal runaway during paper jam events. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar step-down converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS62825DMQ | Adjustable output (0.6–4V); requires external FB resistors; same 2A rating and 4μA IQ. | Used where multiple output voltages are needed on same PCB or future voltage flexibility is required. | Select TPS62825DMQ only if adjustable VOUT is necessary - adds BOM cost and layout complexity vs. fixed TPS6282533DMQR. |
| TPS6282518DMQ | Fixed 1.8V output; identical package, pinout, and electrical specs except VOUT and internal divider (RFB = 7.5MΩ calibrated for 1.8V). | Direct substitute in 1.8V FPGA core or DDR memory applications; not interchangeable with 3.3V systems. | Choose TPS6282518DMQ only for 1.8V rails - pin-compatible but electrically incompatible due to different feedback ratio. |
Compared with TPS62825DMQ (adjustable) and TPS6282518DMQ (1.8V fixed), the TPS6282533DMQR offers optimized BOM simplicity and layout efficiency for 3.3V applications, eliminating external resistors while retaining identical thermal, transient, and protection performance.
Availability
TPS6282533DMQR is available at Aetrix Electronics and suitable for solid state drives, IP network cameras, and industrial PCs requiring stable component supply, long-term lifecycle support, and guaranteed traceable sourcing.
Supply support for TPS6282533DMQR 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 TPS6282x product line delivers ultra-low-IQ, high-density buck converters for battery-powered and space-constrained applications - designed specifically for portable electronics, imaging systems, and industrial edge devices demanding precision regulation and robust fault protection.
FAQ
What is the output voltage tolerance of the TPS6282533DMQR over temperature?
The TPS6282533DMQR guarantees ±1% output voltage accuracy (3.267V to 3.333V) across the full –40°C to 125°C junction temperature range, verified per TI's production test specifications. This tight tolerance is achieved via an internal precision reference and trimmed feedback divider, eliminating drift-related calibration in end equipment.
Does the TPS6282533DMQR require external feedback resistors?
No - the TPS6282533DMQR is a fixed-output variant with an internal 7.5MΩ resistor divider calibrated for 3.3V. The FB pin must be directly connected to the output node; external resistors or capacitors are unnecessary and would disrupt regulation. This simplifies layout and reduces BOM count versus adjustable versions like TPS62825DMQ.
How does the power-good (PG) signal behave during startup and fault conditions?
The TPS6282533DMQR's open-drain PG pin remains low until VOUT reaches 94–98% of nominal (3.07–3.24V), then transitions high-impedance after a 100µs deglitch delay. It asserts low again during EN deactivation, UVLO (VIN < 2.2V), thermal shutdown (>150°C), or output undervoltage - enabling reliable system sequencing and fault detection without external circuitry.
What inductor value is recommended for the TPS6282533DMQR in a typical 5V-input, 3.3V/2A application?
Texas Instruments recommends a 470nH shielded power inductor (e.g., Coilcraft XFL4015-471MEB) rated for ≥4.8A saturation current. This value balances efficiency, transient response, and size - validated for stability with dual 10µF output capacitors and 4.7µF input capacitance in standard layouts per the TPS6282x datasheet.
Can the TPS6282533DMQR operate with input voltage equal to output voltage?
Yes - the TPS6282533DMQR supports 100% duty-cycle operation, allowing VIN as low as VOUT + (IOUT × RDS(on)) + (IOUT × RL). At 2A, this enables dropout below 100mV with typical MOSFET and inductor DCR, making it suitable for brownout resilience in battery-fed systems where input may sag near 3.3V.
TPS6282533DMQR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 6-VFDFN
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Function:
- Step-Down
- Output Configuration:
- Positive
- Topology:
- Buck
- Output Type:
- Fixed
- Number of Outputs:
- 1
- Voltage - Input (Min):
- 2.4V
- Voltage - Input (Max):
- 5.5V
- Voltage - Output (Min/Fixed):
- 3.3V
- Voltage - Output (Max):
- -
- Current - Output:
- 2A
- Frequency - Switching:
- 2.2MHz
- Synchronous Rectifier:
- Yes
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 6-VSON-HR (1.5x1.5)
TPS6282533DMQR FAQ
1.How can I place an order for TPS6282533DMQR through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS6282533DMQR 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 TPS6282533DMQR reliable?
The price and inventory of TPS6282533DMQR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS6282533DMQR is usually 5 days.
3.What payment methods are accepted for TPS6282533DMQR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS6282533DMQR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS6282533DMQR?
TPS6282533DMQR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS6282533DMQR 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 TPS6282533DMQR?
For technical support, including TPS6282533DMQR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS6282533DMQR requirements.
6.How does Aetrix verify that TPS6282533DMQR is sourced from the original manufacturer or authorized distributors?
All TPS6282533DMQR 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 TPS6282533DMQR meets industry standards.
7.What is the process for return or replacement of TPS6282533DMQR?
All TPS6282533DMQR units undergo pre-shipment inspection (PSI). If there is an issue with TPS6282533DMQR, 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 TPS6282533DMQR part is unused and in its original packaging.
Return procedure for TPS6282533DMQR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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