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Texas Instruments TPS62826DMQR
- Part No.:
- TPS62826DMQR
- Manufacturer:
- Texas Instruments
- Package:
- 6-VFDFN
- Datasheet:
-
TPS62826DMQR.pdf
- Description:
- IC REG BUCK ADJ 3A 6VSON
- Quantity:
- Payment:
- Shipping:
Inventory:5,306
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Product details
Overview
TPS62826DMQR from Texas Instruments is a synchronous step-down DC/DC converter delivering up to 3A output current with 1% feedback voltage accuracy (0.6V–4V adjustable), 2.2MHz fixed switching frequency, and 4μA quiescent current. It uses DCS-Control topology for fast transient response and operates in power-save mode at light loads-ideal for battery-powered industrial PCs and portable electronics requiring high efficiency across wide load ranges.
For engineers reviewing the TPS62826DMQR datasheet, TPS62826DMQR pinout, TPS62826DMQR application, or TPS62826DMQR equivalent, key selection criteria include its 3A continuous output capability, 1.5mm × 1.5mm VSON-HR (DMQ) package, integrated 26mΩ/25mΩ MOSFETs, active output discharge, and power-good signal for rail sequencing in space-constrained point-of-load designs.
Technical Context
The TPS62826DMQR implements adaptive constant-on-time DCS-Control with seamless PWM-to-PSM transition, maintaining regulation stability while optimizing efficiency from full load to microamp-level currents. Its internal 0.6V reference and precision feedback path ensure ±1% output voltage accuracy over –40°C to 125°C junction temperature.
It supports 100% duty-cycle operation for ultra-low dropout, features hiccup-mode short-circuit protection with 32-cycle detection latency, and integrates thermal shutdown (150°C trip, 20°C hysteresis) alongside undervoltage lockout (2.2V threshold, 160mV hysteresis) for robust system-level fault handling.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Current | 3A continuous - supports demanding SoC core rails and FPGA I/O supplies without external current sharing. |
| Input Voltage Range | 2.4V to 5.5V - compatible with single-cell Li-ion, USB PD, and 3.3V/5V intermediate bus architectures. |
| Feedback Accuracy | ±1% over –40°C to 125°C - enables tight regulation for sensitive analog and high-speed digital loads without external trimming. |
| Quiescent Current | 4μA in PSM - extends battery runtime in always-on sensor nodes and low-power IoT endpoints. |
| Switching Frequency | 2.2MHz nominal - allows use of compact 0.47μH inductors and small ceramic capacitors for minimal PCB footprint. |
| Package | 6-pin VSON-HR (DMQ), 1.5mm × 1.5mm - delivers industry-leading power density for space-constrained embedded modules. |
| Power-Good Output | Open-drain PG with 100μs rise deglitch - enables reliable multi-rail power sequencing in industrial controllers and SSDs. |
Pinout & Package
TPS62826DMQR is housed in a thermally enhanced 6-pin VSON-HR (DMQ) package measuring 1.5mm × 1.5mm with exposed thermal pad. The pinout supports minimal external component count: only one input capacitor (4.7μF), one output capacitor (2×10μF or 22μF), and one 470nH inductor are required for full operation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| EN | Enable input | Active-high logic control; must be pulled high ≥1.0V to activate regulator; leakage <0.1μA ensures low standby loss. |
| PG | Power-good open-drain output | Sinks up to 1mA; requires external pullup ≤5.5V; provides 100μs deglitched status for downstream rail enablement. |
| FB | Feedback input | Connects to resistor divider for adjustable outputs; 0.6V internal reference enables 0.6V–4V range with ±1% accuracy. |
| GND | Ground reference | Common return for control circuitry and power stage; ties to thermal pad for optimal heat dissipation. |
| SW | Power switch node | Drives external inductor; handles peak currents up to 5A; requires low-inductance layout to minimize EMI. |
| VIN | Input power supply | Accepts 2.4V–5.5V; internal UVLO (2.2V) prevents erratic startup during brownout conditions. |
Key Features
| Feature | Design Value |
|---|---|
| DCS-Control topology | Enables sub-10μs load transient response with minimal output capacitance-critical for burst-mode processors. |
| Active output discharge | Discharges output via SW pin when EN is low (75–400mA sink), preventing floating voltages during power-down sequences. |
| Hiccup short-circuit protection | Shuts down for 100μs after 32-cycle overcurrent detection, limiting average power dissipation during sustained faults. |
| 100% duty-cycle operation | Maintains regulation with VIN as low as VOUT + IOUT×RDS(on)_HS + IL×DCR_L-enables ultra-low dropout in battery-depleted states. |
| Thermal shutdown with hysteresis | Triggers at 150°C and resumes only after cooling by ≥20°C-prevents thermal runaway in sealed enclosures. |
Applications
| Solid State Drive (SSD) | Industrial PC |
|---|---|
Use Scenario: Powers NVMe controller core voltage (1.0V/1.2V) and DRAM interface rails under bursty workloads. IC Role / Device Role / Timing Role: Primary point-of-load regulator delivering stable 3A output with fast transient recovery to maintain PCIe link integrity. Use Value: 1% output accuracy and DCS-Control ensure <20mV ripple during 10A/μs load steps-preventing data corruption and link resets. |
Use Scenario: Supplies FPGA I/O banks and ARM Cortex-A series SoC cores in fanless edge computing units. IC Role / Device Role / Timing Role: High-density buck converter enabling compact 4-layer PCB layouts with minimal thermal margin overhead. Use Value: 4μA quiescent current extends runtime in always-on monitoring modes; 1.5mm × 1.5mm DMQ package reduces board area by >60% vs. legacy QFN solutions. |
| Analog Security Camera | Portable Electronics |
Use Scenario: Regulates image sensor analog supply (2.8V) and ISP core voltage (1.1V) in IP cameras with PoE+ power constraints. IC Role / Device Role / Timing Role: Dual-rail support via cascaded configuration; PG output sequences sensor power before ISP activation. Use Value: Power-good deglitching (100μs rise, 20μs fall) eliminates false triggers during PoE inrush, ensuring deterministic boot. |
Use Scenario: Powers Bluetooth/Wi-Fi SoCs and display drivers in handheld medical devices and ruggedized tablets. IC Role / Device Role / Timing Role: Main system PMIC buck stage operating from single-cell Li-ion (3.0–4.2V). Use Value: 2.2MHz switching enables use of 0402-size 10μF X7R ceramics-reducing BOM count and improving shock/vibe reliability. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar step-down converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS62826ADMQ | Forced-PWM mode only; no PSM; higher 8mA quiescent current; identical 3A rating and pinout. | Better suited for noise-sensitive ADC/DAC supplies where output ripple <10mV is mandatory. | Select TPS62826ADMQ when fixed-frequency CCM operation is required; otherwise TPS62826DMQR offers superior light-load efficiency. |
| TPS62827DMQR | 4A output rating; same package, pinout, and feature set; 2.5V–5.5V input range (vs. 2.4V–5.5V). | Used where future-proofing for higher current or tighter input UVLO margin is needed. | Choose TPS62827DMQR only if design requires >3A headroom; TPS62826DMQR provides optimal cost/performance for verified 3A loads. |
Compared with TPS62826ADMQ and TPS62827DMQR, the TPS62826DMQR uniquely balances ultra-low quiescent current (4μA), 3A capability, and seamless PSM/PWM transition-making it the preferred choice for battery-operated industrial and portable systems where runtime and dynamic performance are co-prioritized.
Availability
TPS62826DMQR is available at Aetrix Electronics and suitable for solid-state drives, industrial PCs, analog security cameras, and portable electronics requiring stable component supply, long-term lifecycle support, and traceable sourcing.
Supply support for TPS62826DMQR 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 technologies with over 90 years of innovation in high-reliability power conversion.
The TPS6282x family was designed specifically for space-constrained, battery-sensitive applications demanding high efficiency across ultra-wide load ranges-from nanoamp sleep states to multi-amp active bursts.
FAQ
What is the maximum continuous output current of the TPS62826DMQR?
The TPS62826DMQR delivers up to 3A continuous output current under recommended operating conditions (TJ ≤ 125°C, VIN = 2.4V–5.5V). This rating is validated with the standard 0.47μH inductor and 2×10μF output capacitance on a 2-layer JEDEC board. Derating applies above 85°C ambient or with reduced copper area.
Does the TPS62826DMQR support adjustable output voltage?
Yes, the TPS62826DMQR supports adjustable output voltage from 0.6V to 4.0V using an external resistor divider connected to the FB pin. The internal 0.6V reference enables precise setting-for example, a 100kΩ R2 and 200kΩ R1 yields 1.8V output. Fixed-output variants (e.g., TPS6282618DMQR) omit the divider.
How does the power-good (PG) signal behave during startup and fault conditions?
The TPS62826DMQR's PG pin is an open-drain output that goes high-impedance only when VFB reaches 96–105% of target voltage and EN is high. It pulls low during startup, shutdown, UVLO, thermal shutdown, or output undervoltage-providing unambiguous sequencing feedback. A 100kΩ pullup to 3.3V is typical.
Can the TPS62826DMQR operate with input voltage below 2.4V?
No-the absolute minimum input voltage is 2.4V per recommended operating conditions. Below this, undervoltage lockout activates at ~2.2V (with 160mV hysteresis), disabling regulation. Attempting operation below 2.4V risks unstable switching or failure to start, especially at cold temperatures or high loads.
What thermal performance can be expected from the TPS62826DMQR in a 6-layer PCB?
On a 6-layer board with 1oz copper, 200mm² thermal pad copper pour, and 4 thermal vias, the TPS62826DMQR achieves ≤33°C/W junction-to-board thermal resistance. At 3A/3.3V output, this yields ~45°C temperature rise above ambient-well within the –40°C to 125°C operating range without forced airflow.
TPS62826DMQR 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:
- Adjustable
- Number of Outputs:
- 1
- Voltage - Input (Min):
- 2.4V
- Voltage - Input (Max):
- 5.5V
- Voltage - Output (Min/Fixed):
- 0.6V
- Voltage - Output (Max):
- 4V
- Current - Output:
- 3A
- 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)
TPS62826DMQR FAQ
1.How can I place an order for TPS62826DMQR through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS62826DMQR 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 TPS62826DMQR reliable?
The price and inventory of TPS62826DMQR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS62826DMQR is usually 5 days.
3.What payment methods are accepted for TPS62826DMQR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS62826DMQR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS62826DMQR?
TPS62826DMQR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS62826DMQR 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 TPS62826DMQR?
For technical support, including TPS62826DMQR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS62826DMQR requirements.
6.How does Aetrix verify that TPS62826DMQR is sourced from the original manufacturer or authorized distributors?
All TPS62826DMQR 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 TPS62826DMQR meets industry standards.
7.What is the process for return or replacement of TPS62826DMQR?
All TPS62826DMQR units undergo pre-shipment inspection (PSI). If there is an issue with TPS62826DMQR, 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 TPS62826DMQR part is unused and in its original packaging.
Return procedure for TPS62826DMQR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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